›› 2009, Vol. 36 ›› Issue (6): 10-13.

• 动物营养与饲料科学 • 上一篇    下一篇

大豆胰蛋白酶抑制因子对獭兔氮平衡和养分消化率的影响

张建云1,王志祥2,马秋刚1,易中华3,关舒1,计成1   

  1. (1.中国农业大学动物科技学院, 北京 100193; 2.河南农业大学牧医工程学院, 郑州 450002;3.江西农业大学动物科技学院, 南昌 330045)
  • 收稿日期:1900-01-01 修回日期:2009-04-16 出版日期:2009-06-20 发布日期:2009-06-20
  • 通讯作者: 计成

Effects of Soybean Trypsin Inhibitors on Nitrogen Balance and Apparent Digestibility of Feed Nutrients in Rex Rabbits

ZHANG Jian-yun1, WANG Zhi-xiang2,MA Qiu-gang1,YI Zhong-hua3,GUAN Shu1,JI Cheng1   

  1. (1.College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; 2.College of Animal Husbandry and Veterinary, Henan Agricultural University, Zhengzhou 450002, China; 3.College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, China)
  • Received:1900-01-01 Revised:2009-04-16 Online:2009-06-20 Published:2009-06-20
  • Contact: JI Cheng

摘要: 试验选择(63±4)日龄、平均体重为(1150.5±124.0) g的健康美系獭兔20只,随机分为5组,每组4只兔,公母各半。试验日粮分别含有25%生大豆、25%化学钝化大豆、25%热处理大豆、25%豆粕和13%生大豆+12%豆粕。胰蛋白酶抑制因子含量(实测值)分别为6.55、 1.99、1.73、 0.81和3.97 mg/g。试验结果表明,25%生大豆组显著降低饲料氮表观消化率(P<0.05),显著增加粪氮排出(P<0.05),对尿氮无显著影响;化学钝化、热处理及生大豆+豆粕组粪氮、氮消化率同豆粕组间无显著差异(P>0.05)。饲料干物质、有机物质、无氮浸出物、粗脂肪、粗纤维表观消化率5组间无显著差异(P>0.05)。

关键词: 大豆; 胰蛋白酶抑制因子; 獭兔; 氮平衡; 消化率

Abstract: A four-day digestive trial was conducted at the 63±4 days of weaned rex rabbits . Twenty weaned rex rabbits were selected from the five groups with 4 of each group (two males and two females and average body weight 1150.5 g±124.0 g). Five treatments of dietary were provided with isoenergy and isonitrogen of 25% raw soybean(RSB), 25% processed soybean by chemical inactivator, 25% processed soybean by heating, 25% soybean meal and 13% raw soybean + 12% soybean meal respectively. Feces and urine were collected totally and feed intakes were recorded.The results indicated that 25% RSB group has significantly declined apparent nitrogen digestibility (P<0.05) and significantly increased fecal nitrogen content (P<0.05). It had no effect on nitrogen in urine. There was no significant difference among groups of processed soybeans by chemical inactivator and heating and 13% raw soybean in fecal nitrogen, nitrogen digestibility. There is no difference in apparent digestibility of dietary dry matter, organic matter, nitrogen-free extract, ether extract and crude fiber among five groups (P>0.05). 

Key words: soybean; trypsin inhibitors; rex rabbits; nitrogen balance; apparent digestibility

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