畜牧兽医学报 ›› 2015, Vol. 46 ›› Issue (3): 416-423.doi: 10.11843/j.issn.0366-6964.2015.03.010

• 动物营养 • 上一篇    下一篇

半胱胺盐酸盐对奶牛营养物质消化率、血清生化及抗氧化指标的影响

刘红1#,杨宏波1#,朱建明2,梁祥焕2,占今舜1,林淼1,赵国琦1*   

  1. (1.扬州大学动物科学与技术学院,扬州 225009; 2.扬州大学实验农牧场,扬州 225009)
  • 收稿日期:2014-06-11 出版日期:2015-03-23 发布日期:2015-03-24
  • 通讯作者: 赵国琦,教授,博士生导师,E-mail:jszhaoguoqi@sohu.com
  • 作者简介:刘红(1986-),女,回族,黑龙江伊春人,硕士生,主要从事反刍动物分子营养与微生态营养研究,E-mail:liuhongswun@hotmail.com;杨宏波(1988-),男,内蒙古包头人,硕士生,主要从事反刍动物分子营养与微生态营养研究,E-mail:yanghongbo333@outlook.com。刘红和杨宏波为并列第一作者
  • 基金资助:

    农业部畜牧业质量安全监管项目

Effects of Cysteamine Hydrochloride on Apparent Nutrient Digestibility,Serum Biochemical and Antioxidant Indices of Lactating Dairy Cows

LIU Hong1#,YANG Hong-bo1#,ZHU Jian-ming2,LIANG Xiang-huan2,ZHAN Jin-shun1,LIN Miao1,ZHAO Guo-qi1*   

  1. (1.College of Animal Science and Technology,Yangzhou University,Yangzhou 225009,China;2.Experimental Farm,Yangzhou University,Yangzhou 225009,China)
  • Received:2014-06-11 Online:2015-03-23 Published:2015-03-24

摘要:

试验旨在研究饲粮中添加半胱胺盐酸盐(Cysteamine hydrochloride,CSH)对中国荷斯坦奶牛营养物质表观消化率、血清生化及抗氧化指标的影响。选择40头胎次为(1.33±0.56)胎、泌乳天数为(155±26) d、平均日产奶量为(30.44±4.42) kg的健康荷斯坦奶牛,随机分为5组,每组8头,分别在饲粮中添加0 (对照组)、15、30、75和150 g的CSH,预试期2周,正试期8周,测定奶牛血清生化、酶和抗氧化指标的浓度。结果表明,15 g处理组的CP、Ca、P、NDF和GE表观消化率均高于对照组,但差异不显著(P>0.05),而在75~150 g处理组呈一定降低趋势,且150 g处理组的消化率最低;当饲粮中CSH添加量为15 g时,奶牛血清中球蛋白(GLOB)水平显著高于150 g组(P<0.05);添加150 g CSH组的谷丙转氨酶(ALT)水平显著高于对照组、15和30 g CSH处理组(P<0.05);随着CSH添加量的增加,血清超氧化物歧化酶(SOD)水平有下降趋势(0.05<P<0.10);CSH添加量为15 g时,血清中谷胱甘肽过氧化物酶(GSH-PX)活性显著高于对照组和150 g处理组(P<0.05);30~150 g处理组丙二醛(MDA)水平高于对照组和15 g处理组。由此可见,饲粮中半胱胺盐酸盐安全添加量为30 g以内。

关键词: 半胱胺盐酸盐, 消化率, 血清生化, 酶, 抗氧化, 奶牛

Abstract:

The objective of this study was to investigate the effects of Cysteamine hydrochloride on apparent nutrient digestibility,serum biochemical and antioxidant indices of lactation Holstein dairy cows.Forty healthy Holstein dairy cows,similarly in milk yield,days in lactation and parity,were allocated into 5 groups in a randomized complete block design with 8 cows per group.Cows were fed with supplementation of CSH for 0 (control group),15,30,75 and 150 g in the basal diet.The pre-experimental period lasted for 2 weeks,and the experimental period lasted for 8 weeks.Apparent nutrient digestibility,serum biochemical indices,enzyme and antioxidant indices were detected.The results showed as follows:The apparent digestibility of CP,Ca,P,NDF and GE in 15 g group were higher than those in the control group (P>0.05),however,decreased tendency was found in 75 and 150 g groups,and those in the 150 g group were the lowest.Compared to the 150 g group,15 g group significantly increased the GLOB content (P<0.05).The ALT concentration increased in 150 g group compared with the control,15 and 30 g groups (P<0.05).The SOD level decreased with the increasing doses of CSH (0.05<P<0.10).Furthermore,the GSH-PX concentration significantly increased in the 15 g group compared with control group and 150 g group (P<0.05).The MDA level of the 30-150 g groups were significantly higher than that of the 15 g group(P<0.05).Results of the present study indicated that the safe supplemental level of CSH is within 30 g.

Key words: Cysteamine hydrochloride, digestibility, serum biochemical, enzyme, antioxidant, cows

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