›› 2019, Vol. 46 ›› Issue (4): 1053-1062.doi: 10.16431/j.cnki.1671-7236.2019.04.012

• Animal Nutrition and Feed Science • Previous Articles     Next Articles

Effects of Selenium Deficiency in Alpine Meadow on Blood Biochemical Indexes and Antioxidant Systems of Yaks

HUO Bin1, WU Ting1, SONG Chunjie1, SHEN Xiaoyun1,2,3   

  1. 1. College of Life Science, Southwest University of Science and Technology, Mianyang 621010, China;
    2. State Engineering Technology Institute for Kast Desertification Control, Guizhou Normal University, Guiyang 550025, China;
    3. World Bank Poverty Alleviation Project Office in Guizhou, Southwest China, Guiyang 550004, China
  • Received:2018-10-19 Online:2019-04-20 Published:2019-04-22

Abstract:

In order to explore the etiology,diagnosis and treatment of the disease characterized by skeletal muscle damage in yak,mineral concentrations were determined on inductively coupled plasma atomic emission spectroscopy in soil,forage and tissue of yaks.Blood parameters,biochemical indicators and antioxidant indicators were determined on automatic hematology analyzer,biochemical analyzer and visible spectrophotometry.The results showed that concentrations of selenium in the soil and forage samples from the affected area were extremely significantly lower than those from the unaffected areas (P<0.01).The mean concentration of selenium in blood,liver and hair samples from the affected yaks were extremely significantly lower than those in unaffected yaks (P<0.01).The concentrations of Hb and RBC from the affected yaks were extremely significantly lower than those from the unaffected yaks (P<0.01).MDA,CPK,GPT,GOT,ALP,LDH,FT4,T4 and TSH from the affected yaks were extremely significantly higher than those from the unaffected yaks (P<0.01).SOD,CAT,GSH-Px,FT3 and T3 from the affected yaks were extremely significantly lower than those from the unaffected yaks (P<0.01).Treatment of affected yaks by injecting 0.1% sodium selenite and 5% vitamin E compound sterilized solution,the concentration of selenium in blood samples and blood serum antioxidant indexes from the treated group yaks were gradually returned to normal.The clinical symptoms disappeared.It indicated that yaks' muscle injury disease in this region was caused by selenium deficiency,mainly due to the low selenium content in soils and forage.The above results were important for further diagnose of yaks' selenium deficiency.

Key words: yaks; selenium deficiency; skeletal muscle injury; Qinghai Lake watershed area; mineral elements metabolic

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