上杭槐猪达8kg体重日龄校正公式研究  

Study on the correction formula of day age of Shanghang Huai pig up to 8kg body weight

作　　者：吴有林 阳文攀 何清辉 张文劲 李文静 刘鸣慧 罗诚 丁能水 Wu Youlin;Yang Wenpan;He Qinghui;Zhang Wenjing;Li Wenjing;Liu Minghui;Luo Cheng;Ding Nengshui(Fujian Aonong Biological Science and Technology Group Co.Ltd,Zhangzhou 363000;Shanghang Aonong Huai Pig Industry Development Co.Ltd,Fujian Longyan 364200;State Key Laboratory of Pig Genetic Improvement and Production Technology,Jiangxi Agricultural University,Nanchang 330045;Zhangpu County Agricultural and Rural Bureau,Fujian Zhangzhou 363000)

机构地区：[1]福建傲农生物科技集团股份有限公司,福建漳州363000 [2]上杭傲农槐猪产业发展有限公司,福建龙岩364200 [3]江西农业大学猪遗传改良与养殖技术国家重点实验室,南昌330045 [4]漳浦县农业农村局,福建漳州363200

出　　处：《福建畜牧兽医》2022年第5期23-26,共4页Fujian Journal of Animal Husbandry and Veterinary medicine

基　　金：福州市科技创新平台项目(2020-PT-147)资助。

摘　　要：为了解上杭槐猪断乳前生长发育变化,比较上杭槐猪统一断乳时生长性能,筛选断乳时生长性能优越的种猪。本研究在初次称重至断乳期间,对103头上杭槐猪仔猪进行多次体重称量、记录。通过线性插值方式获取8 kg体重日龄真值,使用每个个体多条实测值对其校正公式参数进行求解,建立上杭槐猪达8 kg体重日龄校正公式。通过8 kg体重日龄真值减去8 kg体重校正日龄从而获取残差,将不同日龄残差箱线图中位线与残差=0标准线进行比较,从而获取上杭槐猪达8 kg体重日龄校正公式拟合度。上杭槐猪在断乳前体重增长拟合线近似直线,上杭槐猪在42日龄时体重约为8 kg,对其校正公式参数进行求解,其8 kg体重日龄校正系数为4.643,P值为2×10^(-16),判定系数为0.96,通过线性拟合获取的达8 kg体重日龄校正系数校正效果较好。体重在6~8 kg时,残差中值与0最接近,而当体重小于6 kg或大于8 kg时残差中值与0偏差较大。通过对上杭槐猪断乳前生长发育变化描述,有助于了解上杭槐猪断乳前生长性能,确定上杭槐猪断乳时体重。通过对上杭槐猪校正8 kg体重日龄公式的建立,有助于衡量断乳时上杭槐猪生长性能,并在断乳时对上杭槐猪进行选育,增强槐猪群体性能及保种利用。In order to understand the changes of growth and development of Shanghang Huai pigs before weaning, comparing the weaning growth performance of different Shanghang Huai pigs at the same time, and screening piglets with superior performance during weaning.This study included 103 Shanghang Huai piglets, During the period from initial weighing to weaning, the piglets were weighed for many times. The true value of 8 kg weight and age was obtained by linear interpolation, the R language lm function was used to solve the parameters of the correction formula with multiple measured values of each individual. The correction formula for the daily age of Shanghang Huai pig up to 8 kg body weight was established. The residual error was obtained by subtracting the corrected day age from the true value of 8 kg body weight day age obtained by linear interpolation. The fitting degree of the correction formula of 8kg body weight day age of Shanghang Huai pig was analyzed. The fitting line of weight gain of Shanghang Huai pigs before weaning is approximately straight line. The body weight of Shanghang Huai pig was about 8 kg at 42 days old. By solving the parameters of the correction formula, the day age correction coefficient of 8kg body weight was 4.643, the p value was 2×10^(-16), and the judgment coefficient was 0.96. The correction effect of the day age correction coefficient of 8 kg body weight obtained by linear fitting was better.When the body weight is 6~8 kg, the median residual error is closest to 0, while when the body weight is less than 6 kg or more than8 kg, the median residual error deviates greatly from 0. By describing the growth and development changes of Shanghang Huai pigs before weaning, it is helpful to understand the growth performance of Shanghang Huai pigs before weaning and determine the body weight of Shanghang Huai pigs during weaning. The establishment of the formula for correcting the daily age of Shanghang Huai pigs with a body weight of 8 kg is helpful to measure the growth performance of Shanghan

关 键 词：上杭槐猪 生长性能 断乳重 断乳选育 

分 类 号：S828[农业科学—畜牧学]