1α-羟基维生素D_3和植酸酶对22～42日龄肉鸡生长性能、胫骨发育和肉品质的影响  

Effects of 1α-OH D_3 and Phytase on Growth Performance,Tibia Development,and Meat Quality of Broilers Aged from 22 to 42 Days

作　　者：韩进诚[1,2] 瞿红侠[1,2] 姚军虎[2] 施传信[1] 张春梅[1] 梁峰 董先顺 

机构地区：[1]商丘师范学院生命科学系,商丘476000 [2]西北农林科技大学动物科技学院,杨凌712100 [3]河南省高校生物质降解与气化工程技术研究中心,商丘476000 [4]台州和泰化学有限公司,台州318000

出　　处：《动物营养学报》2011年第1期102-111,共10页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：河南省科技攻关项目(102102110173);陕西省科技攻关项目(2009K01-02);商丘师范学院青年基金项目(2009QN11)

摘　　要：本试验旨在研究1α-羟基维生素D3(1α-OHD3)单独添加及其与植酸酶同时添加对22～42日龄肉鸡生长性能、胫骨发育及肉品质的影响。分2个试验进行,试验1将前期(1～21日龄)采食相同饲粮的21日龄艾拔益加(AA)肉鸡96只随机分为2个处理,每个处理4个重复。设计2种饲粮,试验饲粮是在基础饲粮1(非植酸磷NPP0.13%,总磷TP0.35%)中添加5μg/kg1α-OHD3。试验2将前期采食相同饲粮的21日龄AA肉鸡240只随机分为5个处理,每个处理4个重复。设计5种饲粮,前4种按2×2正交组合设计,分别在基础饲粮2(NPP0.20%,TP0.42%)中添加1α-OHD30和5μg/kg、植酸酶0和500U/kg;第5种为对照饲粮(NPP0.35%,TP0.57%)。结果表明,饲粮中添加1α-OHD3能改善22～42日龄肉鸡胫骨质量,提高血浆磷含量,增加腿肉亮度,降低腿肉剪切力,但未改善肉鸡生长性能。添加植酸酶改善22～42日龄肉鸡生长性能、胫骨质量,降低胸肉黄度和持水力;同时添加1α-OHD3和植酸酶未改善肉鸡生长性能,但二者交互作用可改善胫骨灰分和磷含量。由此可知,1α-OHD3单独添加或与植酸酶同时添加可改善生长肥育阶段肉鸡骨骼发育和肉品质。This experiment was conducted to evaluate the effects of 1α-OH D3, and interaction between 1α-OH D3 and phytase on growth performance, tibia development, and meat quality of broilers aged from 22 to 42 days. Two trials were conducted in this study. In trial 1, ninety-six Arbor Acres （AA） broilers at 21 days of age with the same diet were allotted to 2 treatments with 4 replicates. Two diets in trail one were the basal diet 1 （NPP 0.13%. TP 0.35%） and the experimental diet, which was the basal diet 1 supplemented with 5 μg/kg of 1α-OH D3. In trial 2, a 2×2 factorial design was conducted to test the effects of supplementing 0 and 5 μg/kg 1α-OH D3 in combination with 0 and 500 U/kg phytase based on the basal diet 2 （NPP 0.20%, TP 0.42%）. The fifth diet served as a control （NPP 0.35%, TP 0.57%）. The results showed that tibia quality, plasma concentration of inorganic phosphate, and lightness of thigh meat were increased, while shearing force of thigh meat was decreased by dietary supplement with 1α-OH D3, however,dietary supplement with 1α-OH D3 did not significantly affected growth performance of broilers. When phytase was added,growth performance and tibia quality were improved, while yellowness and water-holding capacity of breast meat were declined. Dietary supplement with 1α-OH D3 and phytase did not improve growth performance, but the interaction between 1α-OH D3 and phytase increased the contents of tibia ash and phosphate. In conclusion, the addition of 1α-OH D3 individually or together with phytase improves the quality of bone and meat in broilers aged from 22 to 42 days.

关 键 词：1α—OH D3 植酸酶 磷 肉鸡 

分 类 号：S831[农业科学—畜牧学]