COMPOSITION FOR FEEDING TENEBRIO MOLITOR LARVAE BASED ON ALGAE, AND A PROCEDURE FOR PREPARATION
20250017175 ยท 2025-01-16
Inventors
- Karim Sabeg (Bruxelles, BE)
- Manuel Capote (Sevilla, ES)
- Ricardo Trevino (Sevilla, ES)
- Antonio Coronel (Sevilla, ES)
Cpc classification
A01K2227/706
HUMAN NECESSITIES
International classification
Abstract
The present disclosure provides a procedure for obtaining an algae-based composition for feeding Tenebrio molitor larvae. The procedure includes receiving algae and separating rock remains and plastic materials from the algae. The procedure also includes washing the algae with fresh water to eliminate traces of sand, small crustaceans, and other unwanted elements, in addition to reducing salinity. The procedure further includes drying the algae for between 2-4 days, grinding the dried algae, and mixing the ground algae with an agri-food additive until a composition is obtained that contains proteins 18-24%, fats: 2-4%, carbohydrates: 50-70%, moisture: 5-20%, and ash: 1-8%.
Claims
1: A composition for feeding Tenebrio molitor larvae based on algae characterized in that the feed comprises: algae of marine origin that has been subjected to a process of inspection, washing to eliminate traces of sand, drying for 2-4 days to obtain moisture values in the range of 5-20%, blending, and a nutritional characterization of each batch of prepared algae; and an agri-food additive, wherein the composition contains: proteins 18-24%, fats: 2-4%, carbohydrates: 50-70%, moisture: 5-20%, and ash: 1-8%.
2: The composition to feed the Tenebrio molitor larvae based on algae according to claim 1, characterized in that the agri-food additive is any or combinations of the following: wheat bran pellet, rapeseed flour, gluten pellet, beetroot pellet, beetroot pulp, rice husks, golden DDG, dehydrated tomato, maize, barley, soy flour, soy husk pellet, rapeseed, alfalfa pellets, sunflower pellets, or yeast extract.
3: The composition to feed the Tenebrio molitor larvae based on algae according to claim 1, wherein the algae include at least one of nori seaweed or palmaria palmate seaweed.
4: The composition to feed the Tenebrio molitor larvae based on algae according to claim 1, wherein the composition includes between 10% to 20% algae and between 80% to 90% agri-food additive.
5: The composition to feed the Tenebrio molitor larvae based on algae according to claim 1, wherein the composition is placed in a feed distribution network that is configured to distribute the composition as feed to a plurality of trays that contain Tenebrio molitor larvae.
6: A procedure for obtaining a composition for feeding Tenebrio molitor larvae, characterized in that the procedure comprises: receiving algae and separating rock remains and plastic materials from the algae; washing the algae with fresh water to eliminate traces of sand, small crustaceans, and other unwanted elements, in addition to reducing salinity; drying the algae for between 2-4 days; grinding the dried algae; and mixing the ground algae with an agri-food additive until a composition is obtained that contains: proteins 18-24%, fats: 2-4%, carbohydrates: 50-70%, moisture: 5-20%, and ash: 1-8%.
7: The procedure of claim 6, wherein the algae is dried by placing the algae in trays and using a forced air system to blow air over the algae.
8: The procedure according to claim 6, wherein the algae is dried until a moisture value in the range of 5-20% is obtained.
9: The procedure according to claim 6, wherein the agri-food additive is any or combinations of the following: wheat bran pellet, rapeseed flour, gluten pellet, beetroot pellet, beetroot pulp, rice husks, golden DDG, dehydrated tomato, maize, barley, soy flour, soy husk pellet, rapeseed, alfalfa pellets, sunflower pellets, or yeast extract.
10: The procedure according to claim 6, wherein the algae include at least one of nori seaweed or palmaria palmate seaweed.
11: The procedure according to claim 6, wherein the composition includes between 10% to 20% algae and between 80% to 90% agri-food additive.
12: The procedure according to claim 6, further comprising placing the composition in a feed distribution network that is configured to distribute the composition as feed to a plurality of trays that contain Tenebrio molitor larvae.
13: A composition for feeding Tenebrio molitor larvae based on algae characterized in that the feed comprises: algae of marine origin that has been subjected to a process of washing to eliminate traces of sand, drying to obtain moisture values in the range of 5-20%, blending, and a nutritional characterization of each batch of prepared algae; and an agri-food additive, wherein the composition contains: proteins 18-24%, fats: 2-4%, carbohydrates: 50-70%, moisture: 5-20%, and ash: 1-8%.
14: The composition to feed the Tenebrio molitor larvae based on algae according to claim 13, characterized in that the agri-food additive is any or combinations of the following: wheat bran pellet, rapeseed flour, gluten pellet, beetroot pellet, beetroot pulp, rice husks, golden DDG, dehydrated tomato, maize, barley, soy flour, soy husk pellet, rapeseed, alfalfa pellets, sunflower pellets, or yeast extract.
15: The composition to feed the Tenebrio molitor larvae based on algae according to claim 13, wherein the algae include at least one of nori seaweed or palmaria palmate seaweed.
16: The composition to feed the Tenebrio molitor larvae based on algae according to claim 13, wherein the composition includes between 10% to 20% algae and between 80% to 90% agri-food additive.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DETAILED DESCRIPTION
[0058] The present disclosure provides an automated insect rearing facility for the reproduction and growth of insects. In at least one example, the insects farmed at the provided facility are of the coleoptera order of insects (e.g., beetles), such as the Tenebrio molitor beetle, more commonly known as the mealworm beetle. In other examples, the provided facility may be utilized to farm other suitable insects, such as flies. The insects are farmed within rearing modules that contain sets of trays. The provided facility includes components that are in communication with a control unit, which directs and controls the components according to predetermined instructions and/or in response to feedback from a number of various sensors. The sensors may include light sensors, humidity sensors, temperature sensors, weight sensors, moisture sensors, motion sensors, and/or video sensors among other suitable sensors. The components may therefore autonomously perform the multitude of facility operations via direction from the control unit, without the need for human intervention. The facility also includes a feed source, a water source, temperature control, humidity control, and other processing equipment for producing products from the insects, insect skins, larvae, insect excrement, etc.
[0059] In some aspects, the modules may be housed within, or may be a component of, a container, which is disclosed herein. The example container may include many or all of the above-described facility components to autonomously provide insect rearing activities. The provided container may additionally configured such that it is capable of being transported from one location to another, thus providing mobility to the insect rearing operation. For instance, in one example, the provided container is configured as an intermodal ISO-standard shipping container. In some instances, the container may be transported to a customer site for producing insect-related products, such as animal feed for a specified duration of time.
[0060] Throughout this disclosure, insects may refer interchangeably to either larvae eggs, larvae, pupae, and/or adult insects. Further, disclosure is made in reference to the Tenebrio molitor beetle. However, the disclosed insect rearing system may be provided for other insect types, with adjustments made based on lighting/humidity/temperature levels, feed type, amount of water provided, and time allocated for growth.
[0061]
[0062] Various components of the insect rearing facility 110 are under control of one or more control units such that insect rearing tasks are fully automated, as will be described in more detail throughout this disclosure. For example, such insect rearing tasks may include supply of food to trays, supply of water to trays, distribution of food uniformly throughout the area of the trays, separation of insect excrement, collection of the excrement, collection and separation of adult larvae and moulted skins, separation of some of the adult larvae for growing adult animals for reproduction, collection of eggs, removal of adult animals after they have reproduced, and control of temperature, humidity, and/or air renewal in the environment where the trays are housed.
[0063] The insect rearing facility 110 includes valves, motors, sensors, air conditioning units, air extractors, fans, feed hoppers, conveyor belts, vacuum aspiration systems, and other like components described herein. At least some of these components are under control of the one or more control units. A control unit includes at least one processor in communication with at least one memory. The at least one processor may include a controller, a microcontroller, a logic unit, an application specific integrated circuit, or any other similar device. The at least on memory may store instructions that may be executed by the one or more processors of the control unit to perform the operations described herein. The control unit is configured to receive signals from sensors, such as the light sensors, humidity sensors, temperature sensors, weight sensors, moisture sensors, motion sensors, and/or video sensors. The control unit is programmed to effectuate insect rearing operations, as discussed herein. For instance, the control unit may be programmed to cause certain operations to be performed at predetermined times or in response to feedback from the various sensors. The control unit is also programmed to cause various operations to be performed simultaneously.
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[0066] The reproduction area 31 also includes a primary distribution slider 6. A primary feed hopper 7 is mounted on, or otherwise connected to, the primary distribution slider 6. In various examples, the primary feed hopper 7 is a volumetric feed hopper having volumetric filling control. Feed from the storage tank 5 is fed into the primary feed hopper 7. The primary distribution slider 6 may transport the primary feed hopper 7 back-and-forth along its length. For example, the primary distribution slider 6 may be a production belt on rollers powered by a motor. As in the illustrated example, the distribution slider 6 has a length equal to the area to be covered so that it may enable transportation of the primary feed hopper 7 over the entire area.
[0067] The reproduction area 31 also includes a set of secondary distribution sliders 8A, 8B, 8C, 8D. For example, there may be one secondary distribution slider 8A, 8B, 8C, 8D for each module row 100A, 100B, 100C, 100D. The secondary distribution sliders 8A, 8B, 8C, 8D may be configured in the same manner as the primary distribution slider 6. Each of the secondary distribution sliders 8A, 8B, 8C, 8D includes one or more secondary feed hoppers 9A, 9B. 9C, 9D that are mounted on, or otherwise connected to, a respective secondary distribution slider 8A, 8B, 8C, 8D. The secondary feed hoppers 9B and 9C of the secondary distribution sliders 8B and 8C, respectively, are not shown in
[0068] The primary feed hopper 7 is transported back-and-forth to deliver feed to each of the secondary feed hoppers 9A, 9B. 9C, 9D mounted on each of the secondary distribution sliders 8A, 8B, 8C, 8D. For instance, the secondary distribution slider 8A may transport the secondary feed hoppers 9A the leftmost end of the secondary distribution slider 8A, and the primary distribution slider 6 may transport the primary feed hopper 7 to the topmost end of the primary distribution slider 6, so that the primary feed hopper 7 may deliver feed to the secondary feed hoppers 9A.
[0069] The reproduction area 31 also includes a plurality of feed distribution columns 10. For instance, as in the illustrated example, each module in the respective rows of modules 100A, 100B, 100C may have its own corresponding feed distribution column 10. It should be appreciated that only a single feed distribution column 10 is shown in
[0070] The respective secondary distribution sliders 8A, 8B, 8C, 8D transport their respective secondary feed hoppers 9A, 9B, 9C, 9D to a respective feed distribution column 10 so that a secondary feed hopper 9A, 9B, 9C, 9D may provide feed to a particular feed distribution column 10 from above. Stated differently, each respective feed distribution column 10 may be provided with feed independently of the other feed distribution columns 10. A feed distribution column 10 may then distribute food to its respective module. The feed distribution columns 10 may form a larger gravity-based feed distribution system or network, which will be described in more detail in connection with
[0071] Also included in the reproduction area 31 is a vacuum aspiration system that is configured to retrieve and collect objects from the modules. The vacuum aspiration system includes one or more sets of aspiration arms (not illustrated), a vacuum (not illustrated), piping 11, 12, and decanters 14, 17. The vacuum is in fluid communication with the sets of aspiration arms such that, when activated, the vacuum causes objects to be aspirated into the aspiration arms and through the piping 11, 12. In an example, the vacuum may include pneumatic actuators configured to open and close vacuum suction apertures depending on whether the vacuum is activated or deactivated. The actuators are in communication with the insect rearing facility's control unit 300. The vacuum may also include limit switches for aligning the positions of the aspiration arms prior to activating the vacuum.
[0072] The aspiration arms are mobile such that they may be transported (e.g., the example path illustrated in
[0073] The first aspiration arm is in fluid communication with a pipeline 11 that is in fluid communication with a decanter 14. As illustrated in
[0074] The decanters 14 and 17 may include an inertial separator configured to separate the different material based on weight. In an example, the decanters 14, 17 include an internal chamber connected to an inlet pipeline. At least one pipeline may be connected to a top or side of the internal chamber. In addition, at least one pipeline may be connected to a bottom side of the internal chamber of the decanters 14, 17. The air flow is configured such that lighter particles rise within the internal chamber and exit through the top exit pipeline(s). In contrast, heavier particles decant when the particles contact a blade (e.g., a sheet metal blade) within the internal chamber. The air flow in the decanters 14, 17 may be provided by a fan within the internal chamber or external to the chamber (e.g., fan 15) via ductwork and a vent. The speed of the air flow may be adjusted based on the contents being decanted. For example, a first speed may be used to separate larvae from waste/food/skins and a second speed may be used to separate adult insects from waste/food/eggs.
[0075] In some examples, the modules in the reproduction area 31 may include a nursery tray that includes a mesh layer with openings having a specific size to retain eggs while enabling feed and waste to pass through. In some instances, the eggs may be then be collected from the nursery trays via the vacuum system and transported to the growing area 32. In other instances, the mesh trays themselves may be inserted into the growing area 32.
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[0078] The growth area 32 also includes a primary distribution slider 45 and a primary feed hopper 46. The growth area 32 further includes a set of secondary distribution sliders 47A, 47B, 47C, only some of which are indicated in
[0079] Also included in the growth area 32 is a vacuum aspiration system utilized to retrieve and collect objects from the modules. The vacuum aspiration system includes one or more sets of aspiration arms (not illustrated), a vacuum (not illustrated), piping 50, 51, and decanters 54, 56, 60. The vacuum is in fluid communication with the sets of aspiration arms such that, when activated, the vacuum causes objects to be aspirated into the aspiration arms and through the piping 50, 51. In the growth area 32, the first aspiration arm aspirates developed larvae and moulted skins, while the second aspiration arm aspirates larvae excrement.
[0080] The first aspiration arm is in fluid communication with a pipeline 50 that is in fluid communication with a decanter 54 and a decanter 60. As illustrated in
[0081] The second aspiration arm is in fluid communication with a pipeline 51, which is in fluid communication with a decanter 56. As illustrated in
[0082]
[0083] Each individual module, which have only been described generally in the preceding description, is now be described in more detail.
[0084] In certain aspects, the fixed trays 704 are connected to the module frame 600 such that they are not removable from the module frame 600. In other aspects, the fixed trays 704 may be supported by guide rails 602, and are physically removable from the module frame 600, though they remain positioned on the module frame 600 during farming operations as described below. The mobile trays 702 are movable with respect to the module frame 600. The mobility of the mobile trays 702 may help make it easier to provide feed or water to the mobile trays 702, or to introduce insects to the mobile tray 702. In certain instances, the mobile trays 702 are entirely separate from the module frame 600. In such instances, the mobile trays 702 may have a configuration that enables easier movement of the mobile trays 702. For instance, the mobile trays 702 may have rollers on the bottoms of the mobile trays 702.
[0085] In other instances, the mobile trays 702 may be attached to the module frame 600 such that an actuator may move the mobile trays 702 relative to the module frame 600. For example, the mobile trays 702 may be on rails and an actuator arm may extend the mobile trays 702 away from the module frame 600. In another example, an actuator may agitate or shake a respective mobile tray 702 by moving it back and forth in a quick, repetitive manner. The agitating or shaking may help evenly distribute the insects and/or food on a tray. The agitating or shaking may also cause waste products (or eggs in the reproduction area 31) to fall through a mesh (or openings) in a base of the try 702 to an underlying fixed tray 704. The actuators of the mobile trays 702 are in communication with the control unit 300.
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[0087] The one or more perforated sieves 802A, 802B of the mobile tray 800 include perforations or apertures having a diameter that depends on the intended use of a respective mobile tray 800. Modules of the present disclosure may be either a reproduction module or a growth module. Reproduction modules are configured for breeding purposes and primarily include adult insects in their mobile trays. Therefore, in reproduction modules, the mobile tray 800 perforations have a diameter (e.g., 2 millimeters (mm)) that is sufficient for laid eggs to fall through the perforations and collect on a fixed tray beneath the mobile tray 800. In some embodiments, the mobile tray 800 (e.g., upper tray) may have a solid opaque base instead of perforations. Growth modules are configured for larvae growth from hatching of the eggs until the nymph stage, and primarily include larvae in their mobile trays. Therefore, in growth modules, the mobile tray 800 perforations have a diameter (e.g., 1 mm, 0.5 mm, 0.1 mm, etc.), which is sufficient for larvae excrement to fall through the perforations and collect on a fixed tray beneath the mobile tray 800. Larvae that come into contact with excrement may become sick, thus necessitating removal of the excrement. It should be appreciated that the perforation diameters of the reproduction module mobile trays and the growth module mobile trays may vary based on the insect species that the modules that are utilized for farming. For instance, some insects are larger than others and thus may have larger eggs and/or larger excrement, which requires larger diameter perforations.
[0088] As mentioned above, the previously described feed distribution columns may form a feed distribution system.
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[0090] The feed distribution column 1100 also includes a series of valves 1106A, 1106B, 1106C that allow or block passage through the vertical distribution duct 1104 to the distribution blades 1108A, 1108B, 1108C. For example, when feed is to be supplied to the mobile tray 1112 via the distribution blade 1108B, the valve 1106A arranged above the mobile tray 1112 is opened and the valve 1106B is closed (via instruction from the control unit 300). Therefore, feed from the hopper 1102 may travel down the vertical distribution duct 1104, through the valve 1106A, down the distribution blade 1108B, and into the mobile tray 1112. In another example, if feed then needs to be supplied via the distribution blade 1108C (as determined by the control unit 300), the valve 1108B is opened and the valve 1108C is closed so that feed from the hopper 1102 may travel down the vertical distribution duct 1104, through the valves 1106A and 1106B, down the distribution blade 1108C, and into the mobile tray.
[0091] In various instances, the valves 1106A, 1106B, 1106C are in wireless or wired communication with the control unit 300 of the insect rearing facility. For example, the valves 1106A, 1106B, 1106C may be electrically actuated solenoid valves or pneumatically actuated valves. The control unit 300 controls which valves 1106A, 1106B, 1106C are open and which are closed to control feed distribution. The control unit 300 may also control how much feed is provided to the hopper 1102, based on weight and/or volume. The determination as to the amount of feed needed may correspond to weight or other data received from one or more sensors. Additionally or alternatively, the control unit 300 may be programmed to effectuate feeding at pre-determined times.
[0092] In many instances, the above-described gravity-based feed distribution column results in feed piled up at the foot of the distribution blades. For instance,
[0093] The inventors have observed that agitating or shaking the mobile trays causes feed to accumulate at the end of the mobile trays opposite the connection 1214 to the cam 1212. To compensate for this feed accumulation effect, the mobile trays may have a slight inclination or slope toward the connection 1214. In some embodiments, the control unit 300 is configured to cause the feed distribution column 1202 to agitate or shake the transmission column 1216 after causing feed to be dispensed.
[0094] In various aspects of the present disclosure, the provided modules may also include a water distribution system that together form a water distribution network (e.g.,
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[0097] The tube 1402 may also be coupled to an aspiration nozzle 1410. Between the tube 1402 and the aspiration nozzle 1410 are multiple longitudinal slots 1408A, 1408B that enable suction through the aspiration nozzle 1410.
[0098] In various aspects of the present disclosure, most or all of the above-described components may be incorporated into an insect rearing container that autonomously regulates the insect rearing environment as well as feed and water distribution and other maintenance activities. The container may be transportable from one location to another to provide mobility to an insect rearing operation.
[0099] In some instances, the container 1500 may include one or more doors 1514 to allow access into the container 1500. For example, maintenance operations may occasionally require a human worker to enter the container 1500 to access various components in the interior of the container 1500. The example container 1500 includes one or more columns of openings 1504A, 1504B. The openings 1504A, 1504B are positioned corresponding to the rows of the modules positioned within the container 1500. The length of the openings 1504A, 1504B may correspond with the length of a respective module. The container 1500 also includes a hatch 1516 that may be open and closed for each opening 1504A, 1504B to provide access to the openings 1504A, 1504B. The hatches 1516 may be opened or closed manually or automatically via a motor or other actuation mechanism. Additionally, the hatches 1516 may be opened or closed all at once, or independently of each other. Each of the hatches 1516 may be typically closed to help regulate the environment within the container 1500. In certain instances, however, the hatches 1516 are opened to provide access to the modules, and in particular, to the trays on the modules. For instance, the hatches 1516 may be opened to enable aspiration arms of a vacuum aspiration system to access the trays (e.g.,
[0100] The container 1500 may also include an air extractor 1506, such as an air extraction fan, that extracts air from within the container 1500 and directs it outside of the container. The container 1500 also includes at least one ventilation grille 1508 to allow air to enter the container 1500. The air extractor 1506 and the ventilation grille 1508 help with air circulation within the container 1500. The container 1500 also includes at least one air conditioning unit configured for conditioning the incoming air with respect to humidity, temperature (e.g., heating or cooling), and/or ventilation. In various instances, the air conditioning unit may operate with at least one internal conditioning unit 1512 for impulsion of previously conditioned air.
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[0102] The container 1500 additionally includes a variety of sensors for detecting various conditions within the container 1500. For example, the container 1500 may include light sensors, humidity sensors, temperature sensors, weight sensors, moisture sensors, motion sensors, gas sensors, and/or video sensors. The gas sensors may be used to detect concentrations of certain gases indicative of larva growth or egg laying (or ensure certain concentrations of gases do not exceed a threshold). The gas sensors may detect, for example, CO.sub.2, CH.sub.4, NH.sub.3, etc. The light sensors are configured to detect a level of light in the container 1500. The humidity sensors are configured to detect a level of humidity within the container 1500. The temperature sensors are configured to detect a temperature within the container 1500. The weight sensors, in an example, may be positioned underneath mobile trays and/or fixed trays to detect a content weight of a respective tray. The moisture sensors are configured to detect a moisture level in a tray. For instance, the moisture level may help determine whether water should be provided to the tray. The motion sensors are configured, in an example, to detect when insect eggs have hatched. The video sensors are configured, in an example, to detect when insect eggs have hatched. A person having skill in the art will appreciate that the sensors may be used for a variety of purposes throughout the insect rearing operations, and that other sensors beyond the examples sensors may be utilized.
[0103] The container 1500 also includes a control unit 1510 programmed to control the various operations in the container 1500. The control unit 1510 may be in communication with, or under the control of, one or more control units of the insect rearing facility (e.g., the insect rearing facility 110) in which the container 1500 is stored. The valves, motors, sensors, air conditioning units, air extractors, fans, feed hoppers, and other like components of the container 1500 described herein are under control of the control unit 1510 of the container 1500. The control unit 1510 includes at least one processor in communication with at least one memory.
[0104] The control unit 1510 is configured to receive signals from the sensors, such as the light sensors, humidity sensors, temperature sensors, weight sensors, moisture sensors, motion sensors, and/or video sensors. The control unit 1510 is programmed to effectuate insect rearing operations as discussed herein. For instance, the control unit 1510 may be programmed to cause certain operations to be performed at predetermined times or in response to feedback from the various sensors. The control unit 1510 is also programmed to cause various operations to be performed simultaneously. For example, such insect rearing tasks may include supply of food to trays, supply of water to trays, distribution of food uniformly throughout the area of the trays, separation of insect excrement, collection of the excrement, collection and separation of adult larvae and moulted skins, separation of some of the adult larvae for growing adult animals for reproduction, collection of eggs, removal of adult animals after they have reproduced, and control of temperature, humidity, and/or air renewal in the container 1500.
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[0109] In accordance with the preceding description, various example insect rearing operations are described below to illustrate the described components operating together. In one example, a moisture sensor positioned in mobile tray may communicate feedback to a control unit to indicate that a moisture level in the mobile tray is below a threshold. In response, the control unit causes water to be dispersed to the tray by activating a valve of the water distribution network. In some instances, the control unit may be programmed to disperse water to a tray immediately after, or soon after, feed is dispersed to the tray. In another example, feedback from one or more humidity sensors in the container indicate that a humidity level is below a threshold, which causes the control unit to cause water to be dispersed to one or more trays.
[0110] In various instances, the control unit may control humidity and/or temperature in conjunction with moisture levels. For example, the control unit may reduce an applied humidity by the container's air conditioning unit for a predetermined amount of time after water is dispersed to one or more trays. This may account for evaporation increasing a humidity level within the container. In another example, the control unit may increase a set temperature within the container, adjusting the air conditioning unit accordingly, after water is dispersed to one or more trays to account for the water temporarily lowering the ambient temperature in the one or more trays.
[0111] In some examples, the control unit may process data from sensors in multiple trays to provide control over insect rearing operations. For instance, while the water distribution network may be controlled to disperse water to a specific tray, every tray is exposed to changes in environment within the container (e.g., humidity and temperature). In some aspects, therefore, the control unit may be programmed to increase air flow in the container in response to large variations in temperature and/or humidity detected by one or more temperature and/or humidity sensors. In other aspects, such large variations in temperature and/or humidity may be detected by the control unit, which subsequently causes water dispersal from the water distribution network to specific trays that are detected as experiencing a greater effect from the large temperature and/or humidity variations. The localized water dispersal may help provide more consistency between the trays.
[0112] With respect to feed dispersal, the control unit may receive feedback from weight sensors positioned within or below the trays. The weight sensors detect a weight of the contents in a respective tray. When weight sensor feedback indicates a weight is below a threshold for a specific tray, the control unit may be programmed to cause feed to be dispersed to the specific tray from the feed distribution network by opening and closing valves as needed. If a hopper of a particular feed distribution column does not have sufficient feed, the control unit may cause feed to be distributed to the particular hopper. In various instances, the control unit is programmed to activate the agitation unit to agitate or shake the trays after feed is dispersed to a tray to evenly disperse the feed on the tray.
[0113] In another example, the control unit is programmed to determine when larvae should be harvested from particular trays in response to feedback from the weight sensors, motion sensors, and/or video cameras. The control unit may be programmed to make such a determination based on a weight meeting a threshold weight, or on a change in weight over time. For example, the control unit may receive data indicative that a tray contains 1 kg of insect, feed, and water at a first time. After 6 hours, the control unit receives data indicative that the weight is 0.8 kg. The loss of 20% mass within 6 hours may be indicative that the larvae are large enough for harvesting based on the quantity of food consumed during the time period. As such, the control may control the aspiration arms to collect the larvae and/or waste.
[0114] In other embodiments, the control unit detects larvae movement via a movement sensor or camera. Relatively large larvae may exhibit greater movement. After detecting such movement, the control unit may control the aspiration arms to collect the larvae and/or waste.
[0115] In various aspects, when the aspiration arms are needed, the control unit may be programmed to open a container's hatches (e.g., by activating a motor) to allow the aspiration arms to access the modules. The hatches may be opened individually, multiple at a time, or all at once. The control unit is programmed to then close the opened hatches after the aspiration arms have been removed. The container may include end-of-travel sensors to indicate, to the control unit, when the aspiration arms have been removed from the container to initiate closing the hatches.
[0116] In some examples, a portion of larvae may need to be collected for reproduction purposes. In such examples, the control unit may be programmed to cause the aspiration arms to collect larvae in a first container until a certain weight has been collected or until an aspiration arm has traveled a certain distance along a tray. After this threshold weight or distance has been reached, the control unit is programmed to cause the aspiration arms to collect the remaining larvae in a second container. This may include actuating valves for the piping 50, 51 for routing the larvae to the appropriate container in the reproduction area (e.g., via decanter 56, 60).
[0117] With respect to mobile trays in the reproduction area, in an example, such trays or their modules may include motion sensors. The motion sensors may detect movement of larvae after hatching from eggs. After a threshold amount of movement is detected, or an expected time period from first hatching has elapsed, the control unit may be programmed to control the aspiration arms to collect the larvae so they may be transferred to the container's growth area or to another container including growth modules. In another example, a weight sensor or a video sensor may be configured to detect the presence of eggs in a tray. After a threshold amount of eggs are detected, or an expected time period from first egg detection has elapsed, the control unit may be programmed to control the aspiration arms to collect the eggs.
[0118] In various instances, the control unit may generate an alert or alarm if feedback from one or more sensors exceeds a particular threshold.
[0119] While the above example insect rearing operations were described with respect to the presently disclosed container, it should be appreciated that similar operations may be performed in the presently disclosed insect rearing facility under the control of one or more control units. For instance, the one or more control units are programmed to control the various components in the reproduction area and growth area described in connection with
Feed Composition Embodiment
[0120] In some aspects of the present disclosure, a particular feed composition based on algae may be fed to the insects. For instance, the provided insect feed may be fed to Tenebrio molitor larvae. The particular feed composition may reduce the cost of food by incorporating marine algae and, as a side effect, the bioremediation for the degradation of the marine algae. Algae is subjected to the following treatment stages prior to its incorporation into the final feed. An inspection stage includes separating undesirable elements such as rock remains and plastic materials from the algae. A washing stage includes washing the algae with fresh water to eliminate any traces of sand, small crustaceans, and other unwanted elements, in addition to reducing the salinity. A drying stage includes drying the algae in the sun, which typically takes two to four days. The inventors have found that best results are achieved when the algae are placed in trays with forced air systems both above and below the algae, which improves drying times, and when the algae are kept away from plants and contact with animals or possible soil contamination. The algae is left to dry until moisture values in the range of 5 to 20% are obtained. A blending stage includes blending the dried algae by mixing and/or grinding.
[0121] The parameters of greatest interest to the dried algae's nutritional value are proteins, fats, carbohydrates, moisture, and ash. Table 1 below includes nutritional values of select compositions of dried algae.
TABLE-US-00001 TABLE 1 Value/100 g Genus Saccharina Undaria Palmaria Parameter Pyroia japonica pinnatifida palmata Units. Energy value 1485 745 698 937 Kj 350 179 169 224 Kcal Fats 0.1 <0.5 2 0.5 g Saturated fats 0.1 0.1 0.7 0.1 g Carbohydrates 41 52 37 52 g Sugars 6.2 0 0 0 g Proteins 46.1 9.2 17 18 g Salt 1.5 5.1 12.4 4.4 g Ashes 5.1 24.5 31.5 16.2 g Moisture 7.7 14.2 12.4 13.3 g
[0122] The presently disclosed feed composition includes composition ranges of Proteins 18-24%, Fats: 2-4%, Carbohydrates: 50-70%, Moisture: 5-20%, and Ashes: 1-8%. In various instances, the dried algae is mixed with one or more of the additives selected from the group consisting of wheat bran pellet, yeast extract, beetroot pulp, and alfalfa pellets. Additionally or alternatively, the feed composition may include one or more additives selected from the group consisting of Rapeseed and its flour, gluten pellets, beetroot pellets, rice husks, Golden DDG, dehydrated tomato, maize and its by-products, barley and its by-products, soy flour, and soy husk pellet. Table 2 below shows nutritional compositions of these additives.
TABLE-US-00002 TABLE 2 Pro- Mois- Carbohy- Raw material tein Fat ture Ashes drates Sugars Wheat bran pellet 17.8 5.1 11.3 4.8 61 3.2 Rapeseed flour 41.2 1.9 9.8 3.2 43.9 7.1 Gluten Pellet 22.9 5.3 12.3 4.1 55.4 1.8 Beetroot pellet 28.8 1.6 7.2 5.3 57.1 6 Beetroot pulp 11 0.6 8.4 4.2 75.8 2.7 Rice husks 11.6 7.3 9.1 3.7 68.3 4.8 Golden DDG 33 9.5 10.4 4.4 42.7 5.2 Dehydrated 5 14 35 6.2 39.8 13 tomato Maize 7.3 3.3 13.6 1.1 74.7 1.7 Barley 11.3 1.7 11.1 2.2 73.7 1.6 Soy Flour 47 1.9 12 6.2 32.9 7 Soy husk pellet 11.8 2.5 11 4.7 70 1.5 Rapeseed 19 40.7 8.8 4 27.5 4 Alfalfa pellets 17.4 2.7 9.9 10.6 59.4 3.4 Sunflower pellets 5.7 3 8.6 3.3 79.4 0.7 Yeast Extract 45 6 5 6 38 0
[0123] The dried algae composes between 5% and 25% of the final feed composition. Example compositions of the provided feed composition are shown in Tables 3 to 5 below, and a control composition is shown in Table 6 below.
TABLE-US-00003 TABLE 3 Mix 1 % Raw material Protein Fat Moisture Ashes Carbohydrates Sugars Composition Wheat bran pellet 17.8 5.1 11.3 4.8 61 3.2 90% Nori seaweed 46.1 0.1 7.7 5.1 41 6.2 10% Mixture 20.63 4.6 10.94 4.83 59 3.5 100%
TABLE-US-00004 TABLE 4 Mix 2 % In the Raw material Protein Fat Moisture Ashes Carbohydrates Sugars composition Wheat bran pellet 17.8 5.1 11.3 4.8 61 3.2 70% Palmaria 18 0.5 13.3 26.2 52 0 20% palmata (Dulse) Yeast extract 45 6 5 6 38 0 10% Mixture 20.56 4.27 11.07 9.2 56.9 2.24 100%
TABLE-US-00005 TABLE 5 Mix 3 % In the Raw material Protein Fat Moisture Ashes Carbohydrates Sugars composition Beetroot pulp 11 0.6 8.4 4.2 75.8 2.7 50% Alfalfa pellets 17.4 2.7 9.9 10.6 59.4 3.4 30% Nori seaweed 46.1 0.1 7.7 5.1 41 6.2 20% Mixture 19.94 1.13 8.71 6.3 63.92 3.61 100%
TABLE-US-00006 TABLE 6 Control % In the Raw material Protein Fat Moisture Ashes Carbohydrates Sugars composition Wheat bran pellet 17.8 5.1 11.3 4.8 61 3.2 90% Yeast extract 45 6 5 6 38 0 10% Mixture 20.52 5.19 10.67 4.92 58.7 2.88 100%
[0124] To demonstrate the effectiveness of the feeding and growth of the Tenebrio molitor larvae, different comparative studies have been carried out between the control composition shown in Table 6 and the example compositions shown in Tables 3 to 5. The results can be seen in Table 7 below.
TABLE-US-00007 TABLE 7 % of growth over initial weight Days 0 6 10 12 14 16 Mix 1 0 11.9 22.6 37.4 46.4 48.6 Mix 2 0 12.2 22.5 32.1 44.7 48.3 Mix 3 0 10.7 17.6 27.2 38.0 44.2 Control 0 11.0 23.7 36.3 45.1 46.6
[0125]
[0126] Additionally, the inventors have observed that the consumption of algae by the larvae contributes a specific coloring of the larvae that results from the ingestion of pigments such as chlorophyll (Chlorophyta), phycoerythrin, phycocyanin (Rhodophyta) and fucoxanthin (Phaeophyceae). This makes the product present different organoleptic characteristics due to the colouration presented by the larvae.
[0127] Accordingly, by feeding Tenebrio molitor larvae based on the provided feed composition that includes previously treated marine algae, raw material costs are reduced and ecological impacts invasive algae are reduced.
[0128] Without further elaboration, it is believed that one skilled in the art can use the preceding description to utilize the claimed inventions to their fullest extent. The examples and aspects disclosed herein are to be construed as merely illustrative and not a limitation of the scope of the present disclosure in any way. It will be apparent to those having skill in the art that changes may be made to the details of the above-described examples without departing from the underlying principles discussed. In other words, various modifications and improvements of the examples specifically disclosed in the description above are within the scope of the appended claims. For instance. any suitable combination of features of the various examples described is contemplated.