动物营养学报2013，Vol.25Issue(4)：735-742,8.DOI:10.3969/j.issn.1006-267x.2013.04.010
新杨绿壳蛋鸡育成期能量和蛋白质的需要量
Energy and Protein Requirements of Growing Xinyang Green Shell Hens
摘要
Abstract
This study was conducted to investigate the effects of dietary energy and protein levels on growth performance and carcass composition of growing green shell hens, and to gain the energy and protein requirements of the hens. A total of 864 Xinyang green shell pullets aged 60 days were randomly allocated to 6 groups with 4 replicates per group and 36 hens per replicate. Hens were fed with 6 diets under different matabolizable energy (ME) levels (11. 09 and 11. 72 MJ/kg) and crude protein (CP) levels (14. 00% , 14. 50% and 15.00% ). The pre-trial period was one week, and the trial period was eight weeks. The results showed as follows: 1) different energy levels had an extremely significant influence on average daily feed intake (ADFI) and average daily grain (ADG) (P < 0.01) , while different protein levels had no significant influence on ADFI and ADG (P >0.05); there was no significant interaction between energy and protein in ADFI and ADG (P > 0.05). 2) Different energy levels had significant influence on the length of tibia (P < 0.05), while different protein levels had no significant influence on the length of tibia (P >0. 05) ; there was no significant interaction between energy and protein in the length of tibia (P >0.05). 3) Different energy and protein levels had no significant influence on carcass indices (P >0. 05) , while there was significant interaction between energy and protein in general energy of carcass. According to the mathematical model ( Y = a + bx) of unitary linear regression analysis based on the results of the rearing and comparative slaughter experiments, ME and CP requirements of growing green shell pullets are as follows; ME 11. 40 MJ/kg and CP 14. 45%.关键词
绿壳蛋鸡/育成期/能量/蛋白质/需要量Key words
green shell hens/ growing period/ energy/ protein/ requirement分类
农业科技引用本文复制引用
袁超,徐志刚,蒋媛婧,严华祥,马婷,邹晓庭..新杨绿壳蛋鸡育成期能量和蛋白质的需要量[J].动物营养学报,2013,25(4):735-742,8.基金项目
国家蛋鸡产业技术体系建设专项基金资助(CARS-41-K17) （CARS-41-K17）
公益性行业(农业)科研专项资金资助(200903006-03-07) （农业）
