Effects of Astragalus membranaceus on the Growth Performance and Carcass Parameters of Finishing Lambs

doi:10.11733/j.issn.1007-0435.2015.03.029

Acta Agrestia Sinica ›› 2015, Vol. 23 ›› Issue (3): 640-645.DOI: 10.11733/j.issn.1007-0435.2015.03.029

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Effects of Astragalus membranaceus on the Growth Performance and Carcass Parameters of Finishing Lambs

ZHANG Chun-xiang¹, ZHANG Bo¹, ZHANG Wei¹, REN You-she¹, JIN Li¹, YANG Pei-wen², LIU Gen-tang², DONG Kuan-hu¹

1. College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province 030801, China;
2. Animal Husbandry and veterinary Bureau of Yingxian, Yingxian, Shanxi Province 037600, China

Received:2014-04-22 Revised:2014-08-22 Online:2015-06-15 Published:2015-07-02

黄芪对育肥绵羊生长及产肉性能的影响

张春香¹, 张博¹, 张炜¹, 任有蛇¹, 靳黎¹, 杨培文², 刘根堂², 董宽虎¹

1. 山西农业大学动物科技学院, 山西太谷 030801;
2. 山西应县畜牧兽医局, 山西应县 037600

通讯作者: 董宽虎
作者简介:张春香(1972-),女,山西侯马人,博士,副教授,研究方向为反刍动物营养,E-mail:zhchx66@126.com
基金资助:
山西现代肉羊产业技术体系建设专项资金(SXNYCYTX003)资助

Abstract

Abstract:

The objective of this study was to determine the optimal supplementation of Astragalus membranaceus root in the diet of finishing ram lambs. Thirty-six ram lambs with similar weights were randomly divided into 6 treatments, and were fed a basal diet with supplementation of 0%, 0.5%, 1%, 1.5%, 2% and 3% Astragalus membranaceus root for 70 d respectively. The indexes of growth performance and carcass parameters were collected and analyzed. The results showed that the live weights of lambs were significantly higher in II group than in control group, III group and IV group (P < 0.05), and greatly significantly higher than in V group (P < 0.01).A. membranaceus root supplementation increased average daily gain at a period of 30 d and 60 d (P < 0.05). The average daily gain of II group was higher than that of other treatment groups and control group (P < 0.05). The feed/gain ratio of II group was significant lower than that of IV and V group (P < 0.01), and lower than that of III group and control group (P < 0.05). Hot carcass weight and meat weight of II group were significantly higher than those of IV, V and control group (P < 0.01), and higher than those of I group and III group (P < 0.05). The rack and leg-chump weights of II group were higher than those of other treatment groups and control group after carcass cut (P < 0.05). Therefore, the supplementation of 1% Astragalus root in the diet could increase the average daily gain, the ratio of high quality meat, and improve the feed efficiency of finishing ram lambs.

Key words: Root of Astragalus membranaceus, Growth performance, Carcass parameters, Finishing ram lamb

摘要：

为探寻育肥绵羊日粮中黄芪(Astargalus membranaceus)适宜的添加量,将36只3月龄体重相近广灵大尾羊公羔随机分成6组,对照组、I、II、III、IV和V处理组分别喂给基础日粮+0%,0.5%,1%,1.5%,2% 和3%黄芪。试验期70 d,考察其生长及产肉性能。结果显示:试验结束时II组活体重显著高于对照组、III组和IV组(P<0.05),极显著高于V组(P<0.01)。II组绵羊30 d和60 d日增重显著高于其他处理组和对照组(P<0.05),II组料重比极显著低于IV组和V组(P<0.01),显著低于C组和III组(P<0.05)。II组胴体重和净肉重极显著高于 IV组、V组和对照组(P<0.01),显著高于I组和III组(P<0.05);胴体分割后II组羊肋脊排和带臀腿重显著高于其他处理组和对照组(P<0.05)。育肥绵羊日粮中添加1%黄芪可显著提高日增重,提高饲料利用率,增加优质肉块的比例。

关键词: 黄芪, 生长性能, 产肉性能, 育肥绵羊

CLC Number:

S826.92

ZHANG Chun-xiang, ZHANG Bo, ZHANG Wei, REN You-she, JIN Li, YANG Pei-wen, LIU Gen-tang, DONG Kuan-hu. Effects of Astragalus membranaceus on the Growth Performance and Carcass Parameters of Finishing Lambs[J]. Acta Agrestia Sinica, 2015, 23(3): 640-645.

张春香, 张博, 张炜, 任有蛇, 靳黎, 杨培文, 刘根堂, 董宽虎. 黄芪对育肥绵羊生长及产肉性能的影响[J]. 草地学报, 2015, 23(3): 640-645.

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Effects of Astragalus membranaceus on the Growth Performance and Carcass Parameters of Finishing Lambs

黄芪对育肥绵羊生长及产肉性能的影响

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