文献类型： 外文期刊

第一作者： Bao Kun

作者： Bao Kun;Wang Xiaoxu;Wang Kaiying;Li Guangyu;Liu Hanlu;Li Guangyu

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关键词： biochemical indexes; blood; conjugated linoleic acid; digestibility; growth performance; nutrient; requirement; sika deer

期刊名称：ANIMAL PRODUCTION SCIENCE （ 影响因子：1.533； 五年影响因子：1.779 ）

ISSN： 1836-0939

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收录情况： SCI

摘要： Context. Conjugated linoleic acid (CLA) is very important for animals and humans. CLA has many important biological functions, such as reducing fat and increasing muscle, antioxidation, improving immunity and so on. CLA requirements for deer have not been established. Aims. A single-factor test was conducted to evaluate the effects of CLA supplementation on male sika deer. Methods. Sixteen deer were divided in four groups (from G0 to G3) of four animals, each according to their bodyweight. Deer in G0 were fed a basal diet without CLA supplementation. Deer in G1, G2 and G3 were fed diets supplemented with CLA at concentrations of 0.25%, 0.5% and 1.0%. Growth performance, nutrient digestibility and blood biochemical indexes were measured. Key results. The results suggested that the average daily gain of deer increased with conjugated linoleic acid supplementation (P < 0.05); maximal growth performance was seen in G2. The average daily feed intake showed differences among the treatments (P < 0.01). The highest average daily feed intake was observed in Group G2. Feed to gain ratio (F:G) in Groups G1, G2 and G3 was different from that in Group G0 (P < 0.01). The digestibility of crude protein and ether extract was increased by conjugated linoleic acid concentrations (P < 0.05). The alkaline phosphatase activity showed a significant increase (P < 0.05) in Groups G2 and G3, compared with Group G0. There were significant differences in cholesterol between G1 and G2 groups (P < 0.05). Conclusions. The results indicated that conjugated linoleic acid supplementation to diet plays a positive role in the growth of sika deer.

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