精料型日粮营养水平对海南黑山羊生长性能和胴体特性的影响。
Effects of nutrition level of concentrate-based diets on growth performance and carcass characteristics of Hainan black goats.
作者信息
Wang Dingfa, Zhou Luli, Zhou Hanlin, Hou Guanyu, Li Mao, Shi Liguang, Huang Xianzhou, Guan Song
机构信息
Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, 571737, Hainan, People's Republic of China.
出版信息
Trop Anim Health Prod. 2014 Jun;46(5):783-8. doi: 10.1007/s11250-014-0565-x. Epub 2014 Mar 3.
This study assessed the effects of different nutrition levels of diets on growth performance and carcass characteristics of Hainan black goat. Twenty-four goats were divided into six diet treatments, which consisted of two levels of crude protein (CP; 15 and 17 %) and three levels of digestive energy (DE; 11.72, 12.55, and 13.39 MJ/kg). The results revealed that 17 % CP significantly (P < 0.05) increased ADG and improved FCR compared with 15 % CP. Therefore, the CP levels of diet affected growth performance. CP and DE levels in the diet had no significant effects (P > 0.05) on carcass characteristics of the goats. The mRNA expression levels of insulin-like growth factor 1 in muscle tissues increased with increasing CP and DE levels (P < 0.05).
本研究评估了不同营养水平日粮对海南黑山羊生长性能和胴体特性的影响。将24只山羊分为六种日粮处理组，其中粗蛋白（CP）有两个水平（15%和17%），消化能（DE）有三个水平（11.72、12.55和13.39兆焦/千克）。结果表明，与15%CP相比，17%CP显著（P＜0.05）提高了平均日增重（ADG）并改善了饲料转化率（FCR）。因此，日粮的CP水平影响生长性能。日粮中的CP和DE水平对山羊的胴体特性无显著影响（P＞0.05）。肌肉组织中胰岛素样生长因子1的mRNA表达水平随CP和DE水平的升高而增加（P＜0.05）。
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