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动物营养学报 2019, Vol. 31 Issue (3) :1171-1178    DOI: 10.3969/j.issn.1006-267x.2019.03.022
反刍与草食动物营养 Ruminant and herbivore nutrition 最新目录 | 下期目录 | 过刊浏览 | 高级检索 << Previous Articles | Next Articles >>
性别对舍饲牦牛生长性能、养分表观消化率和屠宰性能的影响
曾钰1,2, 彭忠利1,2, 高彦华1,2, 付洋洋1, 苗建军1,2, 王鼎1, 郭春华1,2,3
1. 西南民族大学生命科学与技术学院, 成都 610041;
2. 动物科学国家民委重点实验室, 成都 610041;
3. 青藏高原动物遗传资源保护与利用重点实验室, 成都 610041
Effects of Gender on Growth Performance, Nutrient Apparent Digestibility and Slaughter Performance of House-Feeding Yaks
ZENG Yu1,2, PNEG Zhongli1,2, GAO Yanhua1,2, FU Yangyang1, MIAO Jianjun1,2, WANG Ding1, GUO Chunhua1,2,3
1. College of Life Science and Technology, Southwest Minzu University, Chengdu 610041, China;
2. Key Laboratory of Animal Science of State Ethnic Affairs Commission, Chengdu 610041, China;
3. Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Conservation and Utilization, Chengdu 610041, China
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摘要 本试验旨在研究性别对舍饲牦牛生长性能、养分表观消化率和屠宰性能的影响。试验选取12头2.5岁、初重为(150.30±9.27)kg的健康麦洼牦牛,按性别分为2组,每组6头。试验牦牛在同一饲养条件下进行舍饲育肥,预试期为14 d,正试期为168 d。结果表明:1)在整个舍饲育肥期间,公牦牛组平均日采食量均高于母牦牛组,第19周公牦牛组的平均日采食量显著高于母牦牛组(P<0.05),其余各周组间差异均不显著(P>0.05)。公牦牛组末重和平均日增重显著高于母牦牛组(P<0.05),料重比有低于母牦牛组的趋势(P=0.080)。2)母牦牛组有机物表观消化率显著高于公牦牛组(P<0.05),其余养分表观消化率组间差异均不显著(P>0.05)。3)公牦牛组宰前活重显著高于母牦牛组(P<0.05),胴体重和净肉重有高于母牦牛组的趋势(P=0.078,P=0.058),而净肉率和屠宰率显著低于母牦牛组(P<0.05),其余指标组间差异均不显著(P>0.05)。综上所述,在相同舍饲育肥条件下,母牦牛具有更好的屠宰性能并且有机物表观消化率更高,而公牦牛具有更好的生长性能。
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关键词舍饲牦牛   性别   生长性能   表观消化率   屠宰性能     
Abstract: The objective of this experiment was to investigate the effects of gender on growth performance, nutrient apparent digestibility and slaughter performance of house-feeding yaks. Twelve healthy Maiwa yaks with 2.5 years of age and an initial body weight of (150.30±9.27) kg were divided into 2 groups with 6 yaks per group based on gender. All yaks were reared and finished under an identical management condition. The pre-test period lasted for 14 days and the trial lasted for 168 days. The result showed as follows:1)during the whole period of house-feeding, the average daily feed intake of the male yaks group was higher than that of the female yaks group, the average daily feed intake of the male yaks group was significantly higher than that of the female yaks group in the 19th week (P<0.05), and other weeks were not found significant difference (P>0.05). The final body weight and average daily gain of the male yaks group were significantly higher than those of the female yaks group (P<0.05), and the feed/gain had a low tendency than the female yaks group (P=0.080). 2)Compared with the male yaks group,only a higher apparent digestibility of organic matter was found in the female yaks group (P<0.05), while the other nutrient apparent digestibility had no significant difference between groups (P>0.05). 3)Compared with the female yaks group, pre-slaughter live weight of male yaks group was significantly increased (P<0.05), the carcass weight and the net meat weight were tended to be higher than those of the female yaks group (P=0.078,P=0.058), but the net meat ratio and the slaughter ratio were significantly reduced (P<0.05), Other indicators were found no significant different between groups (P>0.05). In conclusion,under the same management conditions, the female yaks have better slaughter performance and higher apparent digestibility of organic matter, while the male yaks have better growth performance.
Keywordshouse-feeding yaks,   gender,   growth performance,   apparent digestibility,   slaughter performance     
收稿日期: 2018-08-21;
基金资助:

西南民族大学国拨专项——中央高校基本科研业务费专项基金项目(2016NGJPY09)

通讯作者 彭忠利,副教授,硕士生导师,E-mail:leo3131@163.com     Email: leo3131@163.com
作者简介: 曾钰(1995-),男,重庆人,硕士研究生,动物营养与饲料科学专业。E-mail:812193617@qq.com
引用本文:   
. 性别对舍饲牦牛生长性能、养分表观消化率和屠宰性能的影响[J]. 动物营养学报, 2019,V31(3): 1171-1178
. Effects of Gender on Growth Performance, Nutrient Apparent Digestibility and Slaughter Performance of House-Feeding Yaks[J]. Chinese Journal of Animal Nutrition, 2019,V31(3): 1171-1178.
链接本文:  
http://www.chinajan.com/CN/10.3969/j.issn.1006-267x.2019.03.022     或     http://www.chinajan.com/CN/Y2019/V31/I3/1171
 
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