葡萄渣对羔羊生产性能、屠宰性能和养分消化代谢的影响

doi:10.11686/cyxb20150413

草业学报 ›› 2015, Vol. 24 ›› Issue (4): 114-120.DOI: 10.11686/cyxb20150413

葡萄渣对羔羊生产性能、屠宰性能和养分消化代谢的影响

卢珍珍¹,郑琛¹,李发弟^1,2,李冲¹,唐德富^1*,翁秀秀²,刘婷¹,马志远²,马东方¹

1.甘肃农业大学动物科学技术学院,甘肃兰州 730070;
2.兰州大学草地农业科技学院草地农业生态系统国家重点实验室,甘肃兰州 730000

收稿日期:2014-04-03 修回日期:2014-05-22 出版日期:2015-04-20 发布日期:2015-04-20
通讯作者: 唐德富,E-mail:tangdf@gsau.edu.cn
作者简介:卢珍珍(1987-),女,山东菏泽人,在读硕士。E-mail:luzhenzhen77777@163.com
基金资助:
现代农业产业技术体系建设专项资金(CARS-39)和甘肃中天羊业股份有限公司研发项目(ZTYY-2013-001)资助。

Effect of feeding grape pomace on nutrient digestibility, body weight gain, and carcass quality in lambs

LU Zhen-Zhen¹,ZHENG Chen¹, LI Fa-Di^1,2, LI Chong¹,TANG De-Fu^1*, WENG Xiu-Xiu²,LIU Ting¹, MA Zhi-Yuan², MA Dong-Fang¹

1.College of Animal Science and Technology,Gansu Agricultural University, Lanzhou 730070,China;
2.College of Grassland Agricultural Science and Technology, Lanzhou University, State Key Laboratory of Grassland Agro-ecosystems,Lanzhou 730000,China

Received:2014-04-03 Revised:2014-05-22 Online:2015-04-20 Published:2015-04-20

摘要/Abstract

摘要： 本试验采用单因子完全随机试验设计,选择60只3月龄左右杜寒F₁代公羔进行试验,测定不同水平葡萄渣对羔羊生产性能、屠宰性能和养分消化代谢的影响。本试验设4个饲粮处理组,每个处理15个重复,每个重复一只羊,Ⅰ为基础饲粮,Ⅱ、Ⅲ和Ⅳ处理组为饲粮中分别含有8%,16%和24%的葡萄渣,缩合单宁(condensed tannins,CT)含量分别为0,1.5,3.0和4.5 g/kg。结果表明,Ⅱ、Ⅲ、Ⅳ组羔羊日采食量、日增重、胴体重、屠宰率和胴体脂肪含量都显著高于Ⅰ组(P＜0.05),N表观存留率极显著高于Ⅰ组(P＜0.01),但Ⅰ组羔羊的酸性洗涤纤维和N表观消化率显著高于Ⅳ组(P＜0.05);Ⅱ组羔羊的饲料转化率显著高于Ⅰ组(P＜0.05),净肉率极显著高于Ⅰ组(P＜0.01)。随着CT含量的增加,羔羊的N、中性洗涤纤维和酸性洗涤纤维表观消化率逐渐降低,N的表观存留率逐渐升高,综合考虑羔羊日增重、饲料转化率、屠宰性能和养分利用率等指标,饲粮中葡萄渣以8%~16%为宜。

Abstract: A total of 60 hybrid 3-month-old Dorper (♂) × Small Tail Han sheep (♀) F1 male lambs were randomly allocated to 4 groups with 15 animals per group to determine the effect of different levels of grape pomace on nutrient digestibility, body weight gain, and carcass quality. The control group (groupⅠ) was fed a base diet without grape pomace, while the trial groups were fed diets with grape pomace added to the base diet at 8%, 16% or 24% on a dry weight basis (groups Ⅱ, Ⅲ and Ⅳ), respectively. The condensed tannin (CT) levels in the diets for each group were 0, 1.5, 3.0 and 4.5 g/kg, respectively. The apparent digestibility of acid detergent fiber (ADF) and N of the control group were significantly higher than group Ⅳ(P<0.05). In contrast, the lambs in trial groups had significantly higher average daily feed intake, average daily gain, carcass weight, dressing out rate and GR values (carcass fat cotent) (P<0.05), as well as a higher N retention rate (P<0.01), than the control group. The feed conversion rate (P<0.01) and carcass net meat content of group Ⅱ were significantly higher (P<0.05) than for the control group. With increase of CT content in the diet, apparent digestibility of N, ADF and neutral detergent fiber (NDF) gradually decreased. However, apparent N retention increased. In conclusion, dietary supplementation with 8%-16% of grape pomace had a positive effect on feed conversion efficiency, average daily body weight gain, carcass characteristics and nutrient utilization.

卢珍珍,郑琛,李发弟,李冲,唐德富,翁秀秀,刘婷,马志远,马东方. 葡萄渣对羔羊生产性能、屠宰性能和养分消化代谢的影响[J]. 草业学报, 2015, 24(4): 114-120.

LU Zhen-Zhen,ZHENG Chen, LI Fa-Di, LI Chong,TANG De-Fu, WENG Xiu-Xiu,LIU Ting, MA Zhi-Yuan, MA Dong-Fang. Effect of feeding grape pomace on nutrient digestibility, body weight gain, and carcass quality in lambs[J]. Acta Prataculturae Sinica, 2015, 24(4): 114-120.

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葡萄渣对羔羊生产性能、屠宰性能和养分消化代谢的影响

Effect of feeding grape pomace on nutrient digestibility, body weight gain, and carcass quality in lambs

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