ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2014, Vol. 45 ›› Issue (3): 410-416.doi: 10.11843/j.issn.0366-6964.2014.03.010

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The Effects of Vitamin E,Beta-carotene and Zinc on Testosterone,Cytokine and Immune Function of Holstein Bull in Hot Weather

LI Qiu-feng1,2,3,LI Jian-guo1,2,3*,GAO Yan-xia1,2,3,CAO Yu-feng1,2,3,LI Yun-qi1,2,3,FENG Zhi-hua1,2,3,MA Ya-bin4,WU Yun-hai4,LIU Xing-hua4   

  1. (1.College of Animal Science and Technology,Agricultural University of Hebei,Baoding 071001, China;2.Embryo Engineering and Technological Center of Cattle and Sheep of Hebei,Baoding 071001, China;3.Cattle Science Institute,Agricultural University of Hebei,Baoding 071001, China;4.Animal Husbandry Workstation of Hebei Province,Shijiazhuang 050061, China)
  • Received:2013-09-14 Online:2014-03-23 Published:2014-03-23

Abstract:

The test was to study the effects of dietary vitamins (vitamin E and beta-carotene) and zinc on semen quality,antioxidant indicators of Holstein bull in hot weather.Sixty healthy and purebred Holstein bulls (BW=1 010±80 kg) were randomly classified into 4 groups (n=15):group Ⅰ,control group (basal diet); group II,basal diet +100 mg·kg-1 DM Zn; group III,basal diet+vitamins (300 mg·kg-1 DM vitamin E and 60 mg·kg-1 DM beta-carotene) and group IV,basal diet +100 mg·kg-1 DM Zn + vitamins (300 mg·kg-1 DM vitamin E and 60 mg·kg-1 DM beta-carotene).The trial duration was 120 days.The results showed that the serum concentration of testosterone increased significantly with the addition of vitamin (P<0.05) and zinc (P<0.01),the concentration of testosterone in seminal highest (P<0.05) in group Ⅲ(vitamins),followed by group ⅣandⅡ.Dietary zinc significantly increased serum (P<0.01) and seminal (P<0.05) concentrations of ceruloplasmin;there was no significant effect on serum concentration and seminal ceruloplasmin in group Ⅲ,when addition of the zinc and vitamin together could significantly improve serum (P<0.01) and seminal (P<0.01) concentrations of ceruloplasmin.Serum IL-6 (P<0.01), IL-17 (P<0.01) and TNF-α (P<0.05) concentrations as well as the seminal IL-6 (P<0.01) concentrations decreased significantly,which were caused by the supplemental vitamins and zinc.Dietary zinc and vitamins could increase the antioxidant capacity of sperm.

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