不同蛋白水平对育肥猪腹垂指数及背膘的影响  

Effect of different protein levels on abdominal vertical index and backfat in growing and fattening pigs

作　　者：徐逸男[1] 高雁 王艳丽[1] 李斌[1] 杨爽[1] 

机构地区：[1]沈阳双良饲料有限公司,辽宁沈阳110144 [2]辽宁省农牧业机械研究所有限公司,辽宁沈阳110036

出　　处：《饲料工业》2014年第2期56-58,共3页Feed Industry

摘　　要：试验在商业饲养条件下,探讨不同蛋白水平对育肥猪腹垂指数及背膘厚度的影响。试验选取初重(70.5±0.15)kg杜长大三元育肥猪45头,共分3个处理,每个处理5个重复,每个重复3头为一圈。对照组为低蛋白(CP 13%)组,处理1组在对照组的基础上增加豆粕用量,蛋白水平为14%,处理2组蛋白水平为15%。正式试验期为45 d。研究发现,与对照组相比较,处理2组腹垂指数增加比率较大,为5.0%(P>0.05),更趋向理想腹垂指数(典型三元猪理想腹垂指数为3);而处理2组背膘增加比率最低,为20%(P>0.05)。This experiment was conducted with commercial breeding pigs to discuss the effect of different protein levels on abdominal vertical index and backfat in growing and fattening pigs. 45 three-line crossbred pigs （DuroexLandraceXYorkshire）with initial BW of （70.5±0.15） kg, were allocated to three treahnents, eaeh treatment had three pigs with five repeats in a performance trial. The control group was low protein（CP13CA）, treatment one increased soya bean meal based on the control group （CP14%）. The protein of treatment two was 15% The trial was conducted for 45 days. The research showed that： group 2 of abdominal vertical exponentially larger ratio was 5.0% （P〉0.05）, which is more ideal （The typical ideal three-line crossbred pigs abdominal vertical index is 3）; And group 2 of back fat increased the lowest rate of 20% （P〉0.05）.

关 键 词：育肥猪 蛋白水平 腹垂指数 背膘 生长性能 

分 类 号：S816.4[农业科学—饲料科学]