《中国畜牧兽医》 ›› 2019, Vol. 46 ›› Issue (6): 1668-1676.doi: 10.16431/j.cnki.1671-7236.2019.06.013

• 动物营养与饲料科学 • 上一篇    下一篇

单宁与饲用纤维素酶对湖羊生长性能、血液生化指标、屠宰性能及器官发育的影响

赵梦迪1, 邸凌峰1, 唐泽宇1, 李成云1,2   

  1. 1. 延边大学农学院, 延吉 133002;
    2. 延边大学肉牛科学与产业技术协同创新中心, 延吉 133002
  • 收稿日期:2018-12-05 出版日期:2019-06-20 发布日期:2019-06-19
  • 通讯作者: 李成云 E-mail:574909000@qq.com
  • 作者简介:赵梦迪(1995-),女,吉林白城人,硕士生,研究方向:动物营养与饲料科学,E-mail:zmdi0807@126.com
  • 基金资助:

    国家自然科学基金(31460620、31160464);吉林省科技发展项目(20180412047XH)

Effects of Dietary Tannin and Forage Cellulose on Growth Performance, Blood Biochemical Parameters,Slaughter Performance and Organ Development of Hu Sheep

ZHAO Mengdi1, DI Lingfeng1, TANG Zeyu1, LI Chengyun1,2   

  1. 1. Agricultural College, Yanbian University, Yanji 133002, China;
    2. Innovation Center of Beef Cattle Science and Industry Technology, Yanbian University, Yanji 133002, China
  • Received:2018-12-05 Online:2019-06-20 Published:2019-06-19

摘要:

试验旨在比较研究日粮中添加单宁与饲用纤维素酶对湖羊生长性能、血液生化指标、屠宰性能及器官发育的影响。选取3月龄生长发育良好、平均体重(18.36±1.65) kg的肉用公湖羊72只,随机分成对照组(CK)和3个处理组,每组18只湖羊。对照组饲喂基础日粮,处理组分别在基础日粮中加入0.1%单宁(T)、0.1%饲用纤维素酶(FC)和0.1%单宁+0.1%饲用纤维素酶(M),试验共94 d,其中过渡期7 d,预饲期7 d,正饲期80 d。结果表明:①FC组和M组湖羊终末体重、平均日增重(ADG)显著高于CK组(P<0.05),FC组湖羊料重比(F/G)显著低于CK组(P<0.05),各组间湖羊平均日采食量(ADFI)均无显著差异(P>0.05)。②3个处理组湖羊的白球比显著低于CK组(P<0.05),球蛋白、总蛋白含量和碱性磷酸酶活性均显著高于CK组(P<0.05);各组之间湖羊的白蛋白、总胆固醇、甘油三酯、葡萄糖含量和谷丙转氨酶活性均无显著差异(P>0.05)。③FC组湖羊宰前活重显著高于CK组(P<0.05),FC组和M组湖羊胴体重显著高于CK组(P<0.05),M组湖羊屠宰率显著高于CK组(P<0.05),T组湖羊背膘厚显著低于CK组(P<0.05),FC组和M组湖羊GR值显著高于CK组(P<0.05),各组间湖羊的净肉率、骨肉比和眼肌面积均无显著差异(P>0.05)。④除各处理组湖羊蹄重均显著高于CK组(P<0.05)外,各组湖羊头重和毛皮重、肝脏重、肺脏重、肾脏重、心脏重及蹄器官指数、内脏器官指数均无显著差异(P>0.05)。综合试验结果,在日粮中同时添加饲用纤维素酶和单宁可以提高湖羊的平均日增重和屠宰率,降低料肉比,提高湖羊的免疫力,对器官发育无不良影响。本试验结果可为单宁和饲用纤维素在反刍动物生产中的应用提供理论依据。

关键词: 单宁; 饲用纤维素酶; 湖羊; 生长性能; 血液生化指标; 屠宰性能

Abstract:

The aim of the experiment was to compare the effects of adding tannins and feed cellulose on the growth performance,blood biochemical parameters,slaughter performance and organ development of Hu sheep.A total of 72 male Hu sheep with good growth and average body weight (18.36±1.65) kg at 3 months were randomly divided into control group (CK) and 3 treatment groups (groups T,FC and M),with 18 Hu sheep in each group.Group CK was fed a basal diet,and group T was fed a basal diet added with 0.1% tannin,group FC was added with 0.1% feed cellulose,and group M was added with 0.1% tannin +0.1% feed cellulose in the basal diet.The trial lasted 94 days,including 7 days of transition,7 days of pre-feeding period,and 80 days of the trial period.The results showed that:① The final body weight and average daily weight gain (ADG) of groups FC and M of Hu sheep was significantly higher than that of group CK (P<0.05).F/G in group CF was lower than that of group CK.There was no significant difference in average daily feed intake (ADFI) among all the groups (P>0.05).②Compared to group CK,the ratio of white ball was significantly lower (P<0.05),and the contents of globulin,total protein and the activity of alkaline phosphatase were significantly higher (P<0.05) in groups T,FC and M.There was no significant difference in albumin,total cholesterol,triglycerides,alanine aminotransferase and glucose among all the groups (P>0.05).③The live weight before slaughter (SBW) of Hu sheep in group FC was significantly higher than that in group CK (P<0.05).The carcass weights in groups FC and M was significantly higher than that in group CK (P<0.05).The slaughter rate of Hu sheep in group M was significantly higher than that of group CK (P<0.05).The thickness of backfat in group T was significantly lower than that of group CK (P<0.05).The GR value of groups FC and M of Hu sheep was significantly higher than that in group CK (P<0.05).There was no significant differences in net meat rate,flesh-to-meat ratio and lion eye area among the groups (P>0.05).④ The hoof weights in groups T,FC and M were significant higher than that in group CK (P<0.05).There were no significant differences in head and fur,liver,lung,heart and kidney weights,hoof and internal organs indexes among all the groups (P>0.05).In conclusion,adding feed cellulose and tannin in the diet of Hu sheep could increase the average daily gain and slaughter rate,reduce the ratio of feed to meat,improve the immunity,and had no adverse effects on organ development.It provided a theoretical basis for the application of tannin and feed cellulose in ruminant culture.

Key words: tannin; feed cellulose; Hu sheep; growth performance; blood biochemical indicators; slaughter performance

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