›› 2019, Vol. 46 ›› Issue (6): 1668-1676.doi: 10.16431/j.cnki.1671-7236.2019.06.013

• Animal Nutrition and Feed Science • Previous Articles     Next Articles

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

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

CLC Number: