Effects of dietary manganese supplementation on nutrient digestibility and production performance in male sika deer (Cervus Nippon)
文献类型: 外文期刊
第一作者: Bao, Kun
作者: Bao, Kun;Wang, Kaiying;Wang, Xiaoxu;Zhang, Tietao;Liu, Hanlu;Li, Guangyu;Bao, Kun;Li, Guangyu
作者机构:
关键词: antler;apparent digestibility;manganese;sika deer;trace minerals
期刊名称:ANIMAL SCIENCE JOURNAL ( 影响因子:1.749; 五年影响因子:1.909 )
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年卷期:
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收录情况: SCI
摘要: This study aimed to investigate the effects of manganese (Mn) supplementation on nutrient digestibility and antler growth in male sika deer. Twenty 3-year-old male sika deer were divided into four groups (Control, T40, T80 and T120). The control diet contained 22.2mg Mn/kg. The treatment diets were supplemented with 40, 80 and 120mg of Mn/kg (provided as Mn methionine). The results showed that the digestibility of dry matter and crude protein in the T80 group was greater than other groups. Higher digestibility of neutral detergent fiber and acid detergent fiber was observed in the T80 group than in the control group. Plasma Mn concentrations in the T80 and T120 groups were higher (P<0.01) than control and T40 group (P<0.01). The concentration of Mn in feces was increased with increasing Mn amount. Average daily gain of fresh antler and dry antler of T80 was greater than other groups, especially the control group (P<0.05). In conclusion, the suitable level of Mn supplementation was found to be 80mg/kg (total Mn content 103.4mg/kg dry matter), which significantly increased antler daily gain and feed digestibility in 3-year-old sika deer.
分类号: S8
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