畜牧兽医学报 ›› 2014, Vol. 45 ›› Issue (4): 587-595.doi: 10.11843/j.issn.0366-6964.2014.04.012

• 动物营养 • 上一篇    下一篇

高温环境下日粮中添加锌、维生素E和β-胡萝卜素对公牛精液品质和抗氧化指标的影响

李秋凤1,2,3,李建国1,2,3*,吴云海4,马亚斌4,刘兴华4,高艳霞1,2,3,曹玉凤1,2,3,刘廷玉4   

  1. (1.河北农业大学动物科技学院,保定 071001; 2.河北省牛羊胚胎工程技术研究中心,保定 071001;3.河北农业大学 养牛科学研究所,保定 071001; 4.河北省畜牧良种工作站,石家庄 050061)
  • 收稿日期:2013-09-14 出版日期:2014-04-23 发布日期:2014-04-23
  • 通讯作者: 李建国,教授,博导,E-mail:jgli@hebau.edu.cn
  • 作者简介:李秋凤(1975-),女,河北乐亭人,副教授,博士,主要从事反刍动物营养与饲料科学研究,E-mail:lqf582@126.com
  • 基金资助:

    国家现代农业(奶牛)产业技术体系建设专项资金(CARS-37);国家现代农业(肉牛)产业技术体系建设专项资金(CARS-38)

The Effects of Vitamin E,Beta-carotene and Zinc on Semen Quality,Antioxidant Indicators in Hot Weather

LI Qiu-feng1,2,3,LI Jian-guo1,2,3*,WU Yun-hai4,MA Ya-bin4,LIU Xing-hua4,GAO Yan-xia1,2,3,CAO Yu-feng1,2,3,LIU Ting-yu4   

  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:2014-04-23 Published:2014-04-23

摘要:

旨在研究高温季节日粮中添加维生素(维生素E和β-胡萝卜素)和锌对荷斯坦公牛精液品质、抗氧化指标的变化,探讨高温季节公牛维生素和锌的适宜添加量。本试验采用随机区组设计,选取体重相近(1 010±80)kg、采精正常、健康的纯种荷斯坦成年种公牛60头,随机分为4组,每组15头。4个处理组分别为Ⅰ组:对照组(基础日粮);Ⅱ组:基础日粮+100 mg•kg-1DM Zn;Ⅲ组:基础日粮+维生素(300 mg•kg-1DM维生素E和60 mg•kg-1DM β-胡萝卜素);Ⅳ组:基础日粮+100 mg•kg-1DM Zn+维生素(300 mg•kg-1DM维生素E和60 mg•kg-1DM β-胡萝卜素),试验期120 d。结果表明:添加维生素和锌可改善公牛的精液品质,显著提高鲜精活力(Ⅳ组0.649 vs对照组0.575)、精子密度(Ⅳ组15.16×108个•mL-1 vs对照组11.81×108个•mL-1)、冻精活力(Ⅳ组0.340 vs对照组0.283)、精子顶体完整率(Ⅳ组45.2% vs对照组41.8%),显著降低精子畸形率(Ⅳ组13.47% vs对照组16.81%),但对射精量无显著影响(Ⅳ组11.56 mL vs对照组10.33 mL)。添加维生素可显著提高Cu-Zn SOD的活性(P<0.01);添加锌可显著提高血清T-AOC(P<0.01)和GSH-Px活性(P<0.01);血清中MDA(P=0.053 5)和羟自由基(P=0.069 8)可随着维生素和锌的添加而降低。在4个试验组中,血清中Cu-Zn SOD、T-AOC和GSH-Px的活性Ⅳ组最高,而MDA的浓度以Ⅳ组最低。添加维生素可显著增加精清中总SOD(P<0.01)和T-AOC(P<0.01),日粮中添加锌可提高精清中Cu-Zn SOD的活力(P<0.05)。综上表明,夏季高温季节添加300 mg•kg-1DM维生素E、60 mg•kg-1DM β-胡萝卜素和100 mg•kg-1DM Zn可以改善精液品质。

Abstract:

 The effects of dietary vitamins (vitamin E and beta-carotene) and zinc on semen quality,antioxidant indicators of Holstein bull in hot weather were analyzed.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-1DMZn; group III:basal diet+antioxidant (300 mg•kg-1DMvitamin E and 60 mg•kg-1DMbeta-carotene) and group IV:basal diet +100 mg•kg-1DMZn + vitamins (300 mg•kg-1DMvitamin E and 60 mg•kg-1DMbeta-carotene).The trial duration was 120 days.The results showed that vitamins and zinc could significantly increase the semen quality,vitality of fresh semen (group Ⅳ 0.649 vs groupⅠ0.575),sperm density (group Ⅳ 15.16×108 mL-1 vs groupⅠ11.81×108 mL-1),vitality of frozen semen (group Ⅳ 0.34 vs groupⅠ0.283) and acrosome integrity rate (group Ⅳ 45.2% vs groupⅠ41.8%) but decreased the sperm deformity rate significantly (group Ⅳ13.47% vs groupⅠ 16.81%).However,there was no significant effect on ejaculate volume (group Ⅳ11.56 mL vs groupⅠ10.33 mL).In addition,the serum Cu-Zn SOD activity could be significantly increased by the supplemental vitamins or vitamins + zinc(P<0.01); the individual or combination of supplemental vitamins and zinc significantly positively affected the serum T-AOC(P<0.01); and GSH-PX activity significantly (P<0.01); the serum MDA (P=0.053 5) concentration and hydroxyl radicals (P=0.069 8) were markedly reduced as the result of adding vitamins and zinc.Supplemental vitamins significantly increased the total SOD(P<0.01)and T-AOC(P<0.01)activities in seminal plasma; the Cu-Zn SOD activity (P<0.05) in seminal plasma was increased by the addition of zinc.In conclusion,a diet with 300 mg•kg-1DMof vitamin E,60 mg•kg-1DMof beta-carotenoids and 100 mg•kg-1DMZn could improve the semen quality in hot weather.

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