云上黑山羊生长育肥公羊能量需要量研究  

Study on Energy Requirement of Yunshang Black Goat Growing and Fattening Rams

作　　者：高欢 余烨 殷彦华 赵启 武红德 李浩楠 陈斓 吕亚琦 张雨晨 冷静[1,2] GAO Huan;YU Ye;YIN Yanhua;ZHAO Qi;WU Hongde;LI Haonan;CHEN Lan;LYU Yaqi;ZHANG Yuchen;LENG Jing(College of Animal Science and Technology,Yunnan Agricultural University,Kunming 650201,China;Yunnan Key Laboratory of Animal Nutrition and Feed,Yunnan Agricultural University,Kunming 650201,China;Yunnan Lixin Goat Industry Co.,Ltd.,Mile 652399,China)

机构地区：[1]云南农业大学动物科学技术学院,昆明650201 [2]云南农业大学云南省动物营养与饲料重点实验室,昆明650201 [3]云南立新羊业有限公司,弥勒652399

出　　处：《动物营养学报》2023年第3期1740-1748,共9页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：云南省科技厅科技计划项目(202102AE090039);云岭产业技术领军人才项目(YNWR-CYJS-2017-032);云南省现代农业产业技术体系项目(2017KJTX0016-05)。

摘　　要：本试验旨在研究云上黑山羊生长育肥公羊能量需要量。选择体况良好、体重相近(约为30 kg)的云上黑山羊生长育肥公羊50只,随机分为5组,每组10只羊。各组分别饲喂代谢能(ME)水平为8.01(1组)、8.70(2组)、9.39(3组)、10.07(4组)、10.75 MJ/kg(5组)的试验饲粮。预试期15 d,正试期30 d。结果表明:1)3组的平均日增重(ADG)显著高于其他各组(P<0.05),3组的干物质采食量(DMI)显著高于1、2、5组(P<0.05),3组的料重比(F/G)显著低于其他各组(P<0.05)。2)3组的粗蛋白质表观消化率显著高于其他各组(P<0.05),1组的磷表观消化率显著低于其他各组(P<0.05),2、3组的粗灰分表观消化率显著高于1组(P<0.05),5组的中性洗涤纤维和酸性洗涤纤维表观消化率显著高于1组(P<0.05)。3)3、4、5组的总能摄入量、甲烷能、消化能和ME显著高于1、2组(P<0.05),5组的总能表观消化率显著高于1组(P<0.05)。4)对云上黑山羊生长育肥公羊的ADG、ME和代谢体重(W^(0.75))进行回归分析,得到ME需要量回归模型:ME=0.275 W^(0.75)+0.0486 ADG(R^(2)=0.8245)。综上结果得出,云上黑山羊生长育肥公羊的维持ME需要量为0.275 MJ/(kg W^(0.75)·d),每增重100 g的ME需要量为8.385 MJ/d。The purpose of this experiment was to study the energy requirement of Yunshang black goat growing and fattening rams.Fifty healthy Yunshang black goat growing and fattening rams with similar body weight(about 30 kg)were selected and randomly divided into 5 groups with 10 goats per group.Goats in 5 groups were fed experimental diets with metabolic energy(ME)levels of 8.01(group 1),8.70(group 2),9.39(group 3),10.07(group 4)and 10.75 MJ/kg(group 5),respectively.The pre-experimental period lasted for 15 days,and the experimental period lasted for 30 days.The results showed as follows:1)the average daily gain(ADG)of group 3 was significantly higher than that of other groups(P<0.05),the dry matter intake(DMI)of group 3 was significantly higher than that of groups 1,2 and 5(P<0.05),and the feed to gain ratio(F/G)of group 3 was significantly lower than that of other groups(P<0.05).2)The crude protein apparent digestibility of group 3 was significantly higher than that of other groups(P<0.05),the phosphorus apparent digestibility of group 1 was significantly lower than that of other groups(P<0.05),the crude ash apparent digestibility of groups 2 and 3 was significantly higher than that of group 1(P<0.05),and the apparent digestibility of neutral detergent fiber and acid detergent fiber of group 5 was significantly higher than that of group 1(P<0.05).3)The gross energy intake,methane energy,digestible energy and ME of groups 3,4 and 5 were significantly higher than those of groups 1 and 2(P<0.05),and the gross energy apparent digestibility of group 5 was significantly higher than that of group 1(P<0.05).4)Regression analysis on ADG,ME and metabolic body weight(W^(0.75))of Yunshang black goat growing and fattening rams,the regression model of ME requirement was:ME=0.275 W^(0.75)+0.0486 ADG(R^(2)=0.8245)Based on the above results,the maintenance ME requirement for Yunshang black goat growing and fattening rams is 0.275 MJ/(kg W^(0.75)·d),and the ME requirement per 100 g weight gain is 8.385 MJ/d.

关 键 词：云上黑山羊 生长育肥公羊 能量 需要量 

分 类 号：S826[农业科学—畜牧学]