RESEARCHPAPER

Effects of Bulbil on Growth Performance, Nutrient Digestion and Metabolism, Serum Biochemical Indices and Immune Function of Sheep

  • LIANG Bencong ,
  • YANG Gaiqing ,
  • WANG Fuzhou ,
  • LIAN Hongxia ,
  • WANG Linfeng ,
  • FU Tong ,
  • ZHANG Liyang ,
  • REN Hong ,
  • ZHANG Lijie ,
  • XU Xinying ,
  • LIU Xinhe ,
  • GAO Tengyun
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  • 1. College of Animal Science, Henan Agricultural University, Zhengzhou 450046, China;
    2. Modern Experimental Technology and Management Center, Henan Agricultural University, Zhengzhou 450046, China;
    3. Zhengzhou Sainuo Technology Co., Ltd., Zhengzhou 450041, China

Received date: 2021-11-24

  Online published: 2022-06-14

Abstract

This experiment was conducted to explore the effects of bulbil on growth performance, nutrient digestion and metabolism, serum biochemical indices and immune function of sheep. Thirty healthy Duhu crossbred (Dubo sheep×Hu sheep♀) rams with an average body weight of about 25 kg were randomly divided into 3 groups with 5 replicates per group and 2 sheep per replicate. Sheep in 3 groups were fed experimental diets which contained 0 (control group, CTL group), 7.5% (low dose group, BUL1 group) and 10.0% (high dose group, BUL2 group) bulbil, respectively. The pre-experimental period lasted for 15 days, and the experimental period lasted for 90 days. The results showed as follows:1) there were no significant differences in the final weight, total weight gain, average daily gain (ADG), average daily feed intake (ADFI) and feed to gain ratio (F/G) among all groups (P>0.05). 2) The digestible energy and energy digestibility of BUL2 group were significantly higher than those of CTL group (P<0.05). The digestible calcium, calcium digestibility and calcium deposition of BUL2 group were significantly higher than those of CTL group (P<0.05). 3) The contents of total protein (TP) and globulin (GLB) in serum of BUL1 group were significantly higher than those of CTL group and BUL2 group (P<0.05), the serum free fatty acid (NEFA) content of BUL1 group and BUL2 group was significantly higher than that of CTL group (P<0.05), and the serum urea nitrogen (UN) content of BUL2 group was significantly lower than that of CTL group (P<0.05). 4) The contents of tumor necrosis factor-α (TNF-α) and CD8+ in serum of BUL1 group were significantly higher than those of CTL group (P<0.05). In conclusion, dietary adding 7.5% bulbil can improve the contents of TP, GLB, CD8+ and TNF-α in serum, and dietary adding 10.0% bulbil can improve the energy and calcium digestibility.

Cite this article

LIANG Bencong , YANG Gaiqing , WANG Fuzhou , LIAN Hongxia , WANG Linfeng , FU Tong , ZHANG Liyang , REN Hong , ZHANG Lijie , XU Xinying , LIU Xinhe , GAO Tengyun . Effects of Bulbil on Growth Performance, Nutrient Digestion and Metabolism, Serum Biochemical Indices and Immune Function of Sheep[J]. Chinese Journal of Animal Nutrition, 2022 , 34(6) : 3814 -3823 . DOI: 10.3969/j.issn.1006-267x.2022.06.041

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