日粮中添加苜蓿粉对五龙鹅纤维消化和氮代谢的影响  

Effect of Dietary Alfalfa Meal on Fiber Digestion and Nitrogen Metabolism in Wulong Goose

作　　者：王宝维[1] 吴晓平[1] 张旭晖[1] 龙芳羽[1] 张名爱[1] 刘光磊[2] 

机构地区：[1]莱阳农学院动物科技学院,青岛266109 [2]中国农业科学院畜牧研究所,北京100094

出　　处：《吉林农业大学学报》2007年第2期191-195,共5页Journal of Jilin Agricultural University

基　　金：国家"十五"科技攻关项目(2002BA514A20);山东省农业良种产业化项目

摘　　要：选取3月龄的健康试验鹅48只，随机分为8组，进行消化代谢试验。各试验组日粮分别添加6．15％，10．10％，13．60％，17．05％，19．80％，22．50％，24．30％，28．60％的苜蓿粉，结果表明：在代谢能（ME）和粗蛋白（cP）等摄入量一致的条件下，苜蓿粉含量为6．15％-28．6％（CF含量为5．41％-12．05％）时，粗纤维（CF）的消化率为17．15％^，25．35％，中性洗涤纤维（NDF）21．04％-33．80％，酸性洗涤纤维（ADF）19．10％-28．08％；表观氮沉积（ANR）组间差异不显著（P〉0．05）；粪中氨态氮（NH4^＋-N）浓度显著下降（P〈0．05）；各种氨基酸（AA）消化率较高（75．62％～93．31％）；碱性磷酸酶（AKP）活性与CF、NDF和ADF消化率呈显著负相关（P〈0．05）；酸性磷酸酶（ACP）、谷草转氨酶（GOT）、谷丙转氨酶（GPT）、胆碱酯酶（CHE）、肌酸激酶（CK）、脂肪激酶（LPS）和乳酸脱氢酶（LDH）的活性与营养物的消化率呈弱相关（P〉0．05）。Forty-eight healthy three-month-old geese were divided into eight groups and were fed with isoenergetic and isonitrogenous diets which contained different proportions of alfalfa green hay powder （6.15 %, 10.10%, 13.60%, 17.05%, 19.80%, 22.50%, 24.30%, 28.60% respectively）. The resuits indicated that： CF digestibility changed in the range of 17.15% -25.35%, NDF in 21.04% 33.80% and ADF in 19.10% - 28.08%; There were no significant difference in apparent nitrogen retention（ANR） between the eight groups （P 〉 0.05）; NH4^＋ - N content in feces dropped with the increase of alfalfa powder proportion; AA digestibility reached a high level （75.62% - 93.31 % ） ;AKP activation in plasma ascended significantly （ P 〈 0. 05） and it had significant negative correlation with CF, NDF and ADF digestibility （ P 〈 0. 05） ; ACP, GOT, GPT, CHE, CK, LPS and LDH activities had little correlation with fiber digestibility and Met, Cys digestibility （ P 〉 0. 05）.

关 键 词：苜蓿粉 五龙鹅 营养成分 消化代谢 

分 类 号：S835.5[农业科学—畜牧学]