Conjugated linoleic acid and frying on reproductive and productive activity of ewes in tropical México
Keywords:
conjugate linoleic acid, lambs, pregnancy, recycled vegetable oil, weaningAbstract
The use of vegetable oils has improved the productive and reproductive conditions in sheep, although the beneficial effects depend on the type of fatty acid supplemented. The objective of this study was to evaluate the effects of conjugated linoleic acid and recycled vegetable oil used in seafood deep-frying on the reproductive and productive activity of sheep in tropical México. Thirty-three Katahdin x East Friesian ewes were randomly assigned to one of three diets with: 3% vegetable oil (control); 2% vegetable oil + 1% conjugated linoleic acid; or 3% recycled vegetable oil used in seafood deep-frying. The trial lasted from two weeks prior to estrus synchronization to 60 d after partum. Body weight and reproductive characteristics were recorded in ewes and body weight in lambs. The results indicated beneficial effects of conjugated linoleic acid supplementation on reproductive activity (conception rate and resumption of reproductive activity); however, lambs of dams fed recycled vegetable oil used in seafood deep-frying had the best daily weight gains. Therefore, the reproductive activity was improved with conjugated linoleic acid supplementation in dams, while the growth performance of the progeny was enhanced with recycled vegetable oil used in seafood deep-frying.
http://dx.doi.org/10.21929/abavet2023.25
e2022-76
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