Frances C Cowley, Robert D Kinley, Sigrid L Mackenzie, Marina R S Fortes, Chiara Palmieri, Gamaliel Simanungkalit, Amelia K Almeida, Breanna M Roque
Asparagopsis taxiformis (Asparagopsis) has been shown to be highly efficacious at inhibiting the production of methane (CH4) in ruminants. To date, Asparagopsis has been primarily produced as a dietary supplement by freeze-drying to retain the volatile bioactive compound bromoform (CHBr3) in the product. Steeping of Asparagopsis bioactive compounds into a vegetable oil carrier (Asp-Oil) is an alternative method of stabilizing Asparagopsis as a ruminant feed additive. A dose-response experimental design used 3 Asp-Oil-canola oil blends, Low, Medium and High Asp-Oil which provided 17, 34 and 51 mg Asparagopsis derived CHBr3/kg DMI, respectively (in addition to a zero CHBr3 canola oil control), in a tempered-barley based feedlot finisher diet, fed for 59 days to 20 Angus heifers (5 replicates per treatment)...
April 22, 2024: Journal of Animal Science