Fatty acid in ruminant nutrition and reproduction
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Bovines, protect fatty, nutritionAbstract
Among many factors that can affect the performance in cattle, nutrition is, perhaps, the one which has the most impact on them. Lots of researches have shown that the nutritional and metabolical conditions of the animals affect their reproductive functions. Energy is the main required nutrient by cows in reproduction work and the innadequate providing of it on their diets has shown deleterious effects on the efficacy of reproductive cows. Lipids in ruminant diets are present mainly in esterified form as mono and digalactoglicerídiums of fodder and as triglycerides concentrated food. The rumen environment is responsible for some changes in lipid diets, thereby altering its composition and fatty acid profile that comes to the duodenum. These changes are mainly due to lipolysis and biohydrogenation. The linoleic acid and α-linolenic acid are precursors of polyunsaturated fatty acids (PUFA) ω-6 and ω-3 longer-chain, respectively. These acids can not be biosynthesized in animals, including humans, and as they are necessary for health, they are considered essential and, individually, has different effects on reproduction in ruminants.
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Copyright (c) 2010 Ricardo Lopes Dias da Costa; Reginaldo da Silva Fontes
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