[Problem] To provide an enclosure that can be easily cleaned, [Solution] A fish-breeding enclosure including: a frame 3 constituting the sides of a cuboid; a first net 11 covering a right side surface 5, a bottom surface 7, and a left side surface 9 of the frame 3; a first net feeder 19 for feeding the first net 11 and a second net 17 that covers a front surface 13, the bottom surface 7, and a rear surface 15 of the frame 3; and a second net feeder 21 for feeding the second net 17. When the first net 11 or the second net 17 is renewed. the first net 11 or the second net 17 is drawn out from the first net feeder 19 or the second net feeder 21, respectively.

A hinged door for gaining access to a chamber interior region for receiving a storage item therein. The hinged door comprising a frame, a transparent material pane within the frame, a smart glass material disposed proximate the material pane and controllable between a transparent and opaque condition responsive to an electric current supplied to the smart glass material, a phase change material within the frame, and a temperature controlling device proximate the phase change material.

[Problem] To provide a fish egg processing apparatus capable of performing predetermined processing on fertilized eggs with higher efficiency, and collecting proper fish eggs.

[Solution] When a housing recess that houses fish eggs one by one is conveyed to a predetermined processing position, and a capillary is raised and lowered to inject a gene solution, the housing recess is imaged from a direction that intersects a depth direction and a conveying-in direction, and an injection operation by the capillary is controlled by determining, along a possibility determination flow, whether to inject a predetermined substance into each of the fish eggs before processing, based on a previously determined condition.

[Problem] To provide a fish egg processing apparatus capable of performing predetermined processing on fertilized eggs with higher efficiency, and collecting proper fish eggs.

[Solution] When a housing recess that houses fish eggs one by one is conveyed to a predetermined processing position, and a capillary is raised and lowered to inject a gene solution, the housing recess is imaged from a direction that intersects a depth direction and a conveying-in direction, and an injection operation by the capillary is controlled by determining, along a possibility determination flow, whether to inject a predetermined substance into each of the fish eggs before processing, based on a previously determined condition.

Method for producing YY super-male and XY physiological female common carps, with which YY-chromosome super-male common carp can be cultivated and androgenetic YY super-male common carp is produced, where microsatellite markers are used for paternity testing and test crossing confirmation. The YY common carp is crossed with normal female common carp to produce the progenies of only male common carp, and without sex identification, the juvenile male common carp with known sex are subjected to artificial sex reversal to produce XY physiological female common carp.

Method for producing YY super-male and XY physiological female common carps, with which YY-chromosome super-male common carp can be cultivated and androgenetic YY super-male common carp is produced, where microsatellite markers are used for paternity testing and test crossing confirmation. The YY common carp is crossed with normal female common carp to produce the progenies of only male common carp, and without sex identification, the juvenile male common carp with known sex are subjected to artificial sex reversal to produce XY physiological female common carp.

The present invention relates to methods of predicting resistance to heart and skeletal muscle inflammation in salmonids, the method comprising determining the alleles present at a DNA polymorphism in the salmonid and predicting whether or not the salmonid is resistant to heart and skeletal muscle inflammation based on the determination of the alleles. The invention also relates to related methods of detecting, in a sample from a salmonid, the alleles present at a DNA polymorphism associated with resistance to heart and skeletal muscle inflammation, methods for obtaining an indication of risk of a salmonid developing heart and skeletal muscle inflammation, uses of such DNA polymorphisms, and methods of detecting, in a sample from a salmonid, one or more salmonid gene variants.

There is provided a fish egg processing apparatus capable of performing a predetermined processing on fertilized eggs with higher efficiency. A gene injection device 1 which is a fish egg processing apparatus according to the present invention includes a processing water tank 8 which processes collected fish eggs e and a processing device for injecting a predetermined substance into the fish eggs e positioned in the processing water tank 8, wherein the processing water tank 8 includes: a region prior to processing 81 where the width dimension is set such that a plurality of the fish eggs e are not allowed to lie side by side and form a line in order to house the fish eggs e prior to processing; and a region after processing 82 for housing the fish eggs e on which a predetermined processing has been performed.

There is provided a fish egg processing apparatus capable of performing a predetermined processing on fertilized eggs with higher efficiency. A gene injection device 1 which is a fish egg processing apparatus according to the present invention includes a processing water tank 8 which processes collected fish eggs e and a processing device for injecting a predetermined substance into the fish eggs e positioned in the processing water tank 8, wherein the processing water tank 8 includes: a region prior to processing 81 where the width dimension is set such that a plurality of the fish eggs e are not allowed to lie side by side and form a line in order to house the fish eggs e prior to processing; and a region after processing 82 for housing the fish eggs e on which a predetermined processing has been performed.

A soft spherical object conveying apparatus according to the present invention comprising: a water tank into which at least one soft spherical object is introduced; a conveying rotary member that rotates in the water tank and has a peripheral part provided with a plurality of housing recesses housing each one of the soft spherical objects; a guide member disposed along part of the peripheral part of the conveying rotary member in the water tank; and a removing roller that rotates on an upstream side of the guide member in the water tank in a rotation direction of the conveying rotary member, such that a part of the removing roller opposed to the peripheral part of the conveying rotary member moves in a direction away from the guide member.