The invention provides a dosage form and a bolus configured for administration to an animal, wherein said dosage form and said bolus is configured to release a methane inhibitor to the animal over a period of time. Preferably the methane inhibitor is a haloform. Also provided is the use of the bolus of the invention to reduce methane production in a ruminant animal. Also provided is the method of manufacturing a bolus of the invention.

Provided is a method for reducing methane production in animal stomachs by adding melatonin to gastric juice of the animal or feeding the animal with melatonin. In the method of the present disclosure, 10-7 mol/L to 10-3 mol/L of melatonin can reduce the methane production from the in vitro gastric fermentation fluid, and feeding melatonin of 8.0 to 35.0 mg/kg/day can reduce the methane production from the animal respiration from day 7 of feeding melatonin. The method of the present disclosure can reduce greenhouse gas emissions of animals, control environmental pollution and realize low-carbon farming.

The present invention relates to a feed supplement or a food supplement which comprises a resin acid based composition comprising over 10% (w/w) resin acids for use in in the preven-tion of intestinal disorders. The in-vention further relates to a use of the feed supplement or the food supplement and a feed composition or a food composition comprising the feed supplement or the food supplement, respectively.

Disclosed herein are compositions and using said compositions in methods for decreasing methane in the rumen of ruminants, in methods of decreasing enteric methane emissions in subjects, landfills and topsoil, in fermentation, and in methods of modulating microbiome of ruminants. Also disclosed herein are compositions and using said compositions in methods for reducing ammonia in the rumen of ruminants, in methods of decreasing enteric methane emissions in subjects, landfills and topsoil, and in fermentation.

Provided herein, inter alia, are methods for improving animal health (such as gut health) and performance as well as decreasing methane emissions via administration of an effective amount of a glycoside hydrolase capable of removing at least one alpha-1,2-L-fucose moiety from an intestinal mucin layer. Such methods improve animal health and performance without the need to administer potentially harmful antibiotics to the livestock.

Disclosed is a method for reducing methane emission from slurry produced in a livestock farm. The method comprising the steps of guiding unheated slurry from the livestock farm to a slurry heat exchanger, raising the temperature of the unheated slurry in the slurry heat exchanger to at least 65# Celsius, guiding the at least 65# Celsius hot slurry to an intermediate slurry tank, raising the temperature of the heated slurry to at least 75# Celsius in the intermediate slurry tank, guiding the at least 75# Celsius hot slurry through the slurry heat exchanger to exchange heat with the unheated slurry to raise the temperature of the unheated slurry to the at least 65# Celsius and to cool the at least 75# Celsius hot slurry to at least below 40# Celsius, and guiding the at least below 40# Celsius cold slurry to a slurry reservoir. Furthermore, a slurry treatment plant for reducing methane emission from slurry is disclosed.

The present disclosure relates to liquid (e.g., water-soluble) compositions comprising antimethanogenic compounds, and methods of administering the same to reduce enteric methane emissions from ruminant animals, and/or improve feed-efficiency. Certain disclosed compositions exhibit improved rapid effect over prior art compositions. The disclosure further relates to methods of concentrating antimethanogenic compounds, extracting antimethanogenic compounds, and methods of increasing the bioavailability of antimethanogenic compounds.

The present invention relates to improved formulations of propandiol mononitrate and derivatives thereof as well as to the production of such formulations.

An animal emission monitoring device for positioning on cattle, the animal emission monitoring device comprising a snout member comprising a sensor unit for detecting the quantity of methane emissions and a positioning means for positioning the device on the head of an animal such that the snout member locates the sensor unit over the nostril of the animal.

The present invention relates to storage stable adsorbates of 3-nitrooxypropanol and derivatives thereof as well as to the production of such adsorbates.