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草业学报 ›› 2014, Vol. 23 ›› Issue (3): 205-214.DOI: 10.11686/cyxb20140324

• 论文 • 上一篇    下一篇

向日葵秆和向日葵盘对绵羊营养价值的评定

钟方寅1,郑琛1,李发弟1,2,*,刘婷1   

  1. 1.甘肃农业大学动物科学技术学院,甘肃 兰州 730070;
    2.甘肃省饲料工程技术研究中心,甘肃 兰州730070
  • 收稿日期:2012-04-05 出版日期:2014-06-20 发布日期:2014-06-20
  • 通讯作者: E-mail:lifd@gsau.edu.cn
  • 作者简介:钟方寅(1986-),女,甘肃白银人,硕士。E-mail:yinfangzhong@126.com
  • 基金资助:
    甘肃陇原中天生物工程股份有限公司研发项目(ZTSW-2009-002)和现代农业产业技术体系建设专项资金(CARS-39)资助

Nutritional evaluation of sunflower straw and plate in sheep

ZHONG Fang-yin1,ZHENG Chen1,LI Fa-di1,2,LIU Ting1   

  1. 1.Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China;
    2.Gansu Feed Engineering Technology Research Center, Lanzhou 730000, China
  • Received:2012-04-05 Online:2014-06-20 Published:2014-06-20

摘要: 试验选用6只体重28 kg左右安装永久瘤胃瘘管的甘肃高山细毛羯羊, 采用3×3无重复拉丁方设计, 通过消化代谢试验, 对向日葵秆和向日葵盘对绵羊的营养价值进行了评定。结果表明:向日葵秆和向日葵盘风干样品中干物质、粗蛋白质、粗脂肪、粗纤维、中性洗涤纤维、酸性洗涤纤维、粗灰分、钙、磷分别为90.73%, 5.72%, 0.89%, 30.15%, 53.09%, 39.40%, 11.61%, 0.84%, 0.13%和89.63%, 11.84%, 2.13%, 12.48%, 23.51%, 15.41%, 14.04%, 0.97%, 0.29%;向日葵秆和向日葵盘对绵羊干物质消化率、氮消化率、氮存留率、有机物消化率、中性洗涤纤维消化率、酸性洗涤纤维消化率、钙消化率、磷消化率及消化能分别为61.61%, 65.37%, 34.72%, 65.19%, 48.18%, 44.89%, 29.10%, 26.07%, 8.75 MJ/kg和70.96%, 69.57%, 41.60%, 76.26%, 60.87%, 58.60%, 37.98%, 44.75%, 9.97 MJ/kg。饲粮中添加向日葵秆对绵羊瘤胃液中乙酸摩尔比及氨氮含量产生了显著的影响(P<0.05),对瘤胃液pH、总挥发性脂肪酸、丙酸摩尔比、丁酸摩尔比、其他酸摩尔比及瘤胃液中总氮、尿素氮、蛋白氮浓度均无显著影响(P>0.05);饲粮中添加向日葵盘对绵羊瘤胃液乙酸摩尔比、丙酸摩尔比和乙酸/丙酸产生了显著的影响(P<0.05),对pH、总挥发性脂肪酸、丁酸摩尔比、其他酸摩尔比和瘤胃液含氮量无显著影响(P>0.05)。

Abstract: Six Gansu alpine sheep with 28 kg in average weight and fitted with permanent rumen fistula were chosen to investigate the nutritional evaluation of sunflower straw and plate on sheep in a 3×3 Latin square design. 1) On an air dry basis, dry matter, crude protein, ether extract, crude fiber, neutral detergent fiber, acid detergent fiber, calcium, phosphorus were 90.73%, 5.72%, 0.89%, 30.15%, 53.09%, 39.40%, 11.61%, 0.84%, 0.13% respectively in sunflower straw and 89.63%, 11.84%, 2.13%, 12.48%, 23.51%, 15.41%, 14.04%, 0.97%, 0.29% in sunflower plate. 2) The digestibility of dry matter ,nitrogen, organic matter, neutral detergent fiber, acid detergent fiber, calcium, phosphorus were 61.61%, 65.37%, 65.19%, 48.18%, 44.89%, 29.10%, 26.07% respectively in sunflower straw and 70.96%, 69.57%, 76.26%, 60.87%, 58.60%, 37.98%, 44.75% in sunflower plate. The nitrogen retention rate and digestive energy were 34.72%, 8.75 MJ/kg respectively in the straw and 41.40%, 9.97 MJ/kg in the plate. 3) When feeding sunflower straw to sheep, there were significant (P<0.05) differences in molar ratios of acetic acid and ammonium nitrogen in rumen fluid. There were no differences in pH, total volatile fatty acids, molar ratio of propionate acid, butyrate, other acids and total nitrogen, urea nitrogen, protein nitrogen in rumen fluid (P>0.05). When feeding sunflower plate to sheep, there were significant (P<0.05) differences in molar ratios of acetic acid, propionate acid, and the ratios of acetic acid to propionate in rumen fluid. There were no differences in pH, total volatile fatty acids, in molar ratios of butyrate, other acids and nitrogen in rumen fluid.

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