禽营养 Poultry Nutrition

饲粮粗蛋白质和代谢能水平对1~3周龄四川白鹅生长性能及氮和能量平衡的影响

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  • 重庆市畜牧科学院, 重庆 402460
李琴(1978-),女,重庆铜梁人,硕士研究生,从事家禽遗传育种与养殖技术研究。E-mail:liqin117@126.com

收稿日期: 2014-04-23

  网络出版日期: 2014-09-10

基金资助

国家现代农业(水禽)产业技术体系建设专项资金项目(CARS-43-15);农业科技成果转化资金项目(2013GB2F100398)

Effects of Dietary Crude Protein and Metabolizable Energy Levels on Growth Performance and Nitrogen and Energy Balance of Sichuan White Geese Aged from 1 to 3 Weeks

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  • Chongqing Academy of Animal Science, Chongqing 402460, China

Received date: 2014-04-23

  Online published: 2014-09-10

摘要

本试验旨在研究饲粮粗蛋白质(CP)和代谢能(ME)水平对1~3周龄四川白鹅生长性能及氮和能量平衡的影响。采用3×3双因素试验设计,设3个ME水平(12.86、12.13、11.43 MJ/kg)和3个CP水平(23%、20%、17%),配制9种试验饲粮。选择540只体重相近、健康的1日龄四川白鹅,随机分成9组,每组4个重复,每个重复15只。试验期为21 d。结果表明:1)随着饲粮CP水平的升高,试验鹅的末重、平均日增重、每克增重消耗CP量显著(P<0.05)或极显著(P<0.01)升高,料重比、每克增重消耗ME量显著(P<0.05)或极显著(P<0.01)降低。饲粮CP和ME水平的互作对试验鹅每克增重消耗的CP量和每克增重消耗的ME量有极显著的影响(P<0.01)。2)试验鹅的氮利用率随饲粮CP水平的升高极显著降低(P<0.01);试验鹅的食入总能(GE)、ME、GE代谢率随饲粮ME水平增加极显著降低(P<0.01)。研究结果提示,1~3周龄四川白鹅适宜CP水平为20%,适宜ME水平为11.43 MJ/kg。

本文引用格式

李琴, 陈明君, 彭祥伟 . 饲粮粗蛋白质和代谢能水平对1~3周龄四川白鹅生长性能及氮和能量平衡的影响[J]. 动物营养学报, 2014 , 26(9) : 2582 -2589 . DOI: 10.3969/j.issn.1006-267x.2014.09.018

Abstract

This experiment was conducted to study the effects of dietary crude protein (CP) and metabolizable energy (ME) levels on growth performance and nitrogen and energy balance of Sichuan white geese aged from 1 to 3 weeks. A total of 540 healthy one-day-old Sichuan white geese with similar body weight were used in a 3×3 double factorial design trial and randomly allocated into 9 groups with 4 replicates in each group and 15 geese in each replicate. The geese were fed 9 experimental diets with three levels of CP (23%, 20% and 17%) and three levels of ME (12.86, 12.13 and 11.43 MJ/kg). The experiment lasted for 21 days. The results showed as follows: 1) with the increased of dietary CP level, the final weight, average daily gain and consumed CP for gain per gram were significantly increased (P<0.05 or P<0.01), but the ratio of feed to gain and the consumed ME for gain per gram were significantly decreased (P<0.05). The interaction between dietary CP and ME levels significantly affected the consumed CP for gain per gram and consumed ME for gain per gram (P<0.01). 2) With the increased of dietary CP level, the availability of nitrogen was significantly decreased (P<0.01); with the increased of dietary ME level, the GE intake, ME and availability of GE were significantly decreased (P<0.01). The results suggest that for Sichuan white geese aged from 1 to 3 weeks, the dietary levels of CP and ME are 20% and 11.43 MJ/kg, respectively.

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