动物营养学报2012，Vol.24Issue(8)：1469-1476,8.DOI:10.3969/j.issn.1006-267x.2012.08.010
1～3周龄黑羽公番鸭代谢能和粗蛋白质需要量的研究
Metabolizable Energy and Crude Protein Requirements of Black Male Muscovy Ducks Aged from 1 to 3 Weeks
摘要
Abstract
This experiment was conducted to study the requirements of metabolizable energy (ME) and crude protein (CP) of black male Muscovy ducks aged from 1 to 3 weeks. Three hundred and seventy eight 1-day-old black male Muscovy ducks were used in a 3 x 3 factorial design trial and randomly allocated to 9 groups with 6 replicates in each group of 7 ducks in each replicate. The ducks were fed 9 experimental diets with different levels of ME (11. 72 , 12.14 or 12. 55 MJ/kg) and CP (17% , 19% or 21% ). The experiment lasted for 21 days. The ducks' excrement of each replicate were collected for 3 days at the end of the experiment and used for analyzing the availability of nutrients. One duck from every replicate was slaughtered at the end of the experiment, and samples were collected for analyzing body composition. The results showed as follows; dietary CP level had significant or extremely significant effects on average daily gain (ADG) , consumed CP for gain per gram, apparent availability of energy and CP, intake and deposition rate of CP (P <0. 05 or P < 0.01). Dietary ME level had significant or extremely significant effects on average daily feed intake ( ADFI) , feed/gain (F/G) and consumed CP for gain per gram (P <0. 05 or P < 0. 01). The interaction between dietary ME and CP levels had significant effects on ADG, apparent availability of energy and living body energy content (P <0. 05). Through unary linear regression analysis, the ME and CP requirements can be estimated by following formulas: ME = 756. 68 W075 +7.133 7 ΔW; CP = 33. 363 W0.75 -0.457 1 ΔW (where W0.75 is metabolic weight, Δ W is ADG). The ME and CP requirements of black male Muscovy ducks aged from 1 to 3 weeks are 12.10 MJ/kg and 19.31% , respectively.关键词
黑羽公番鸭/代谢能/粗蛋白质/需要量Key words
black male Muscovy duck/ metabolizable energy/ crude protein/ requirement分类
农业科技引用本文复制引用
张建华,戴求仲,蒋桂韬,王照群,林谦,张旭..1～3周龄黑羽公番鸭代谢能和粗蛋白质需要量的研究[J].动物营养学报,2012,24(8):1469-1476,8.基金项目
湖南省科技计划(2010NK3086) （2010NK3086）
国家水禽产业技术体系建设专项资金资助(CARS-43) （CARS-43）
