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草业学报 ›› 2023, Vol. 32 ›› Issue (10): 162-172.DOI: 10.11686/cyxb2022472

• 研究论文 • 上一篇    

日粮添加蚕豆皮对湖羊生长性能、屠宰性能、器官发育和肉品质的影响

王钊1(), 刘静1, 于昊1, 李鹏2, 牛伟强2, 万永杰1, 张艳丽1, 茆达干1()   

  1. 1.南京农业大学动物科技学院,江苏 南京 210095
    2.启东瑞鹏牧业有限公司,江苏 启东226200
  • 收稿日期:2022-11-30 修回日期:2023-01-12 出版日期:2023-10-20 发布日期:2023-07-26
  • 通讯作者: 茆达干
  • 作者简介:E-mail: maodagan@njau.edu.cn
    王钊(1998-),男,河北唐山人,硕士。E-mail: wz15930581800@163.com
  • 基金资助:
    江苏现代农业产业技术体系建设专项资金(JATS [2021]478);启东市科技项目(2022-3)

Effects of dietary broad bean skin on growth rate, slaughter performance, organ development and meat quality of Hu sheep

Zhao WANG1(), Jing LIU1, Hao YU1, Peng LI2, Wei-qiang NIU2, Yong-jie WAN1, Yan-li ZHANG1, Da-gan MAO1()   

  1. 1.College of Animal Science and Technology,Nanjing Agricultural University,Nanjing 210095,China
    2.Qidong Ruipeng Animal Husbandry Co. ,Ltd. ,Qidong 226200,China
  • Received:2022-11-30 Revised:2023-01-12 Online:2023-10-20 Published:2023-07-26
  • Contact: Da-gan MAO

摘要:

本试验旨在研究日粮添加蚕豆皮对湖羊生长性能、屠宰性能、器官发育及肉品质的影响。60只4月龄健康湖羊公羊[(27.00±2.00) kg]随机分为4组(n=15,每组3个重复,每个重复5只羊),分别饲喂含蚕豆皮0%(对照组C)、10%(组Ⅰ)、20%(组Ⅱ)和30%(组Ⅲ)的日粮,试验期60 d。结果表明:与对照组相比,添加不同比例的蚕豆皮组湖羊体重、平均日采食量和平均日增重均极显著提高(P<0.01);蚕豆皮组Ⅲ的胴体重(19.62±0.73 vs 17.75±0.86) kg和宰前活重(37.22±1.01 vs 34.76±0.71) kg极显著提高(P<0.01),眼肌面积显著提高(35.84±2.47 vs 27.84±0.13 cm2P<0.05);肝脏重量有提高趋势(670.00±73.37 vs 588.00±49.87 g,P=0.071),瘤胃重量(659.40±66.44 vs 548.00±75.48) g和小肠重量(1107.80±150.56 vs 901.00±41.32) g显著提高(P<0.05);肌纤维横截面积极显著降低(584.67±32.01 vs 832.90±53.48 μm2P<0.01),肌肉谷氨酸含量极显著提高(37.74±1.64 vs 13.19±3.38 mg·g-1P<0.01),精氨酸含量(19.08±1.28 vs 11.25±2.39) mg·g-1和非必需氨基酸总量(118.44±1.98 vs 90.59±9.56) mg·g-1显著提高(P<0.05),缬氨酸含量(12.40±1.09 vs 7.98±1.61 mg·g-1P=0.086)和必需氨基酸总量(135.25±3.51 vs 106.79±11.14 mg·g-1P=0.071)有上升趋势。因此,日粮中添加蚕豆皮提高了湖羊的生长性能和屠宰性能,促进胃肠道发育,改善肌纤维特性和氨基酸组成,为蚕豆皮在湖羊生产中的合理应用提供科学依据。

关键词: 蚕豆皮, 湖羊, 生长性能, 屠宰性能, 器官发育, 肉品质

Abstract:

This study aimed to investigate the effect of a dietary broad bean skin supplement on growth rate, slaughter performance, organ development and meat quality of Hu sheep. Healthy 4-month-old male Hu sheep (n=60; 27.00±2.00 kg) were randomly divided into four treatment groups of 15 animals (3 replicates in each group and 5 sheep in each replicate) and fed diets containing 0% (control, Group C), 10% (Group I), 20% (Group II) and 30% (Group III) broad bean skin. The trial period was 60 days. Compared with the control group, the body weight, average daily feed intake and daily gain of Hu sheep in groups fed broad bean skin were very significantly increased (P<0.01). In Group III, the carcass weight (19.62±0.73 vs 17.75±0.86 kg) and live weight before slaughter (37.22±1.01 vs 34.76±0.71 kg) were very significantly increased (P<0.01) compared to Group C while the area of eye muscle was significantly increased (35.84±2.47 vs 27.84±0.13 cm2P<0.05); The liver weight tended to be increased (670.00±73.37 vs 588.00±49.87 g, P=0.071), the rumen weight (659.40±66.44 vs 548.00±75.48 g) and small intestine weight (1107.80±150.56 vs 901.00±41.32 g) were significantly increased (P<0.05); The cross-sectional area of muscle fiber was extremely significantly lower (584.67±32.01 vs 832.90±53.48 μm2P<0.01); The glutamic acid content was very significantly increased (37.74±1.64 vs 13.19±3.38 mg·g-1P<0.01); The contents of arginine (19.08±1.28 vs 11.25±2.39 mg·g-1) and nonessential amino acids (118.44±1.98 vs 90.59±9.56 mg·g-1) were significantly higher (P<0.05), and the contents of valine (12.40±1.09 vs 7.98±1.61 mg·g-1P=0.086) and essential amino acids (135.25±3.51 vs 106.79±11.14 mg·g-1P=0.071) tended to increase. In summary, the addition of broad bean skin to the diet improved the growth rate, slaughter performance, gastrointestinal development, muscular fiber and amino acid composition of Hu sheep, and the data provide a scientific basis for ration formulation incorporating broad bean skin in the production of Hu sheep.

Key words: broad bean skin, Hu sheep, growth performance, slaughter performance, organ development, meat quality