影响五指山小型猪主要脏器重量及脏器系数的因素分析  

Analysis of the Effect Factors on Organ Weight and Organ Coefficients of Wuzhishan Mini-Pigs

作　　者：闵凡贵[1] 潘金春[1] 王希龙[1] 陈瑞爱[2] 王凤国[2] 罗书明[2] 叶健聪 

机构地区：[1]广东省实验动物监测所,广东广州510663 [2]广东大华农动物保健品股份有限公司,广东新兴527400

出　　处：《中国畜牧兽医》2012年第10期218-222,共5页China Animal Husbandry & Veterinary Medicine

基　　金：广东省科技计划项目(2010B060500018;2011B020305002);广州市科技计划项目(11A66100095);广东省实验动物重点实验室(2007B060101002)

摘　　要：为测定不同年龄段封闭群五指山小型猪主要脏器重量和脏器系数,研究影响脏器系数的因素,试验选用普通级封闭群五指山小型猪74头(其中♂43头,♀31头),测定体重和心脏、肝脏、肺脏、脾脏、肾脏、胃6个脏器的重量,计算脏器系数,分别以年龄和体重为研究因素,对脏器重量和脏器系数进差异性、相关和回归分析。性别间比较显示,不同年龄段小型猪脏器重量少量脏器间存在显著性差异(P<0.05),但脏器系数性别间差异不显著(P>0.05)。单因素分析结果显示,随着年龄和体重的增大,脏器重量显著增加(P<0.0001);在脏器系数对年龄因素的分析中,心脏、肝脏、肺脏和胃出现显著减小的趋势(P<0.0001),而脾脏和肾脏的减小趋势不明显(P>0.05),而在脏器系数对体重因素的分析中,所有脏器系数均出现明显减小的趋势(P<0.01)。多因素分析结果显示,各脏器的重量和脏器系数受体重的影响程度不同。研究结果表明,性别因素对五指山小型猪脏器重量和脏器系数的影响不大,年龄和体重是主要的影响因素,其中体重因素最为关键,脏器重量随着体重的增加而显著增加,而脏器系数明显减小。To measure organ weight and organ coefficient of outbred Wuzhishan mini-pigs （WZSPs）, and analyze the fac- tors that affect organ weight and organ coefficient. 74 common WZSPs（43 males and 31 females） were chosen for this study, and the body weights and 6 organs weights were determined, then the organ coefficients were counted. Based on ages and body weights, difference, correlation, and regression analysis in organ weights and organ coefficients were performed respectively. Only few organ weights of different aged animals showed significant differences between males and females （P〈0.05）, but there was no significant difference for the organ coefficients（P〉0.05）. Results of ANOVA showed that organ weights in- creased significantly in accordance with the growths and increases of body weighs（P〈0. 0001）; and the organ coefficients of heart, liver, lung, and stomach decreased significantly with the growth of animals（P〈0. 0001）, but the decreases of spleen and kidney coefficients were not significant（P〉0.05） ; while all the organ coefficients decreased significantly with increases of body weights（P〈0.01）. Multiple regression analysis demonstrated that organ weight and organ coefficient of the same organ were affected by body weight on different levels. Among the effect factors on organ weights and organ coefficients, the effects of sex differences were mild, while age and body weight showed great effects, and body weights were the key factors. Organ weights increased significantly and organ coefficients turned opposition in accordance with the increases of body weighs.

关 键 词：五指山小型猪 脏器重量 脏器系数 统计分析 

分 类 号：S815[农业科学—畜牧学]