›› 2019, Vol. 46 ›› Issue (2): 449-457.doi: 10.16431/j.cnki.1671-7236.2019.02.015

• Animal Nutrition and Feed Science • Previous Articles     Next Articles

Effects of Chicory Acid on Growth Performance,Serum Biochemical Indices and Antioxidant Ability of Grazing Yak in Perinatal Period

A Shunxian1, LUO Zenghai2, ZHANG Wenying1, WANG Aichao1, ZHANG Yuanxin3, WU Hua1   

  1. 1. College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China;
    2. General station of Animal Husbandry of Qinghai Province, Xining 810008, China;
    3. Qinghai Datong Cattle Farm, Xining 810102, China
  • Received:2018-06-29 Online:2019-02-20 Published:2019-02-20

Abstract:

The aim of this experiment was to study the effects of chicory acid on the growth performance,serum biochemical indices and antioxidant capacity of grazing yak in perinatal period.Sixteen perinatal grazing yak with good body condition and similar weight (195 to 205 kg) were chosen and randomly divided into two groups,each group had eight yak,the control group was fed with concentrate supplement and oat green hay,and the experimental group was fed with concentrate supplement,0.15 kg/d chicory acid and oat green hay.The trial period was 60 days (from 30 days before delivery to 30 days after delivery),and the blood samples were collected on the 15th day before delivery,7th day before delivery,day of childbirth,7th day after delivery,and 15th day after delivery,and the corresponding indicators were determined.The results showed that,compared with the control group, on the 15th day after delivery, the contents of serum urea nitrogen (BUN) was significantly lower (P<0.05);On the day of childbirth and the 7th day after delivery,the activities of aspartate transaminase (AST) was significantly lower (P<0.05),while the contents of serum glucose (GLU), the activity of serum alkaline phosphatase (ALP) and total antioxidant capacity (T-AOC) were significantly higher (P<0.05); And on the day of childbirth, the activities of serum glutathione peroxidase (GSH-Px), superoxide dismutase (SOD) were significantly higher, and malondialdehyde (MDA) content was significantly lower (P<0.05) in experimental group. The results of this study indicated that adding chicory acid to the perinatal gr azing yak supplement diet could effectively improve the blood biochemical indexes, alleviate the oxidative stress state and improve the antioxidant capacity of grazing yak during perinatal period.

Key words: chicory acid; perinatal period; datong grazing yak; growth performance; serum biochemical indices; antioxidant capacity

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