大约克猪不同品系及不同系间杂交猪的繁殖和生长性能比较研究  

Comparative study on reproductive and growth performance of different lines and interline crossesof Yorkshire pigs

作　　者：林杰 徐新宇 周军辉 李卫东 夏志鑫 LIN Jie;XU Xinyu;ZHOU Junhui;LI Weidong;XIA Zhixin(Danyang City Situ Town Animal Epidemic Prevention Station,Danyang 212331,China;Jiangsu Kangle Agricultural and Animal Husbandry Co.,Ltd.,Danyang 212331,China)

机构地区：[1]丹阳市司徒镇动物防疫站,江苏丹阳212331 [2]江苏康乐农牧有限公司,江苏丹阳212331

出　　处：《黑龙江动物繁殖》2025年第1期52-56,共5页Heilongjiang journal of animal reproduction

摘　　要：为了解美系、法系、丹系及不同系间杂交大约克猪繁殖性能和生长性能差异,试验对第3胎次美系、法系、丹系、美×法、美×丹和法×丹大约克猪繁殖性状(窝总产仔数、窝产活仔数及初生窝重)和生长性状(初生重、21日龄重、30 kg日龄、100 kg日龄及背膘厚)进行测定和分析。结果表明:丹系的窝总产仔数、窝产活仔数和初生窝重极显著高于美系和法系(P<0.01),初生重极显著低于美系(P<0.05),21日龄重和背膘厚极显著低于美系和法系(P<0.05);法系的窝总产仔数和初生窝重显著高于美系(P<0.05);美系和法系在初生重、21日龄重和背膘厚方面均差异不显著(P>0.05),美系、法系和丹系在30 kg日龄、100 kg日龄方面均差异不显著(P>0.05);法×丹的窝总产仔数极显著高于美×法(P<0.01),显著高于美×丹(P<0.05),窝产活仔数和初生窝重极显著高于美×法和美×丹(P<0.01);美×法与美×丹的窝总产仔数、窝产活仔数和初生窝重均差异不显著(P>0.05);美×法21日龄重显著高于法×丹(P<0.05),美×法、美×丹、法×丹在初生重、30 kg日龄、100 kg日龄和背膘厚方面均差异不显著(P>0.05)。说明丹系和含丹系大约克猪的繁殖性能优于法系、含法系及美系、含美系,美系和含美系大约克夏猪的生长性能优于法系、含法系及丹系、含丹系。To investigate the differences of reproductive performance and growth performance of different lines and interline crosses of Yorkshire pigs,the reproductive traits(total number of piglets born,number of live piglets born and birth weight)and growth traits(birth weight,21-d weight,30 kg age,100 kg age and back fat thickness)were measured and analyzed in the third parity of the Yorkshire pigs from American,French,Danish,American×French,American×Danish and French×Danish.The results showed that the total number of piglets born,the number of live piglets born and the birth weight of the litter in the Danish strain were significantly higher than those in the American and French strains(P<0.01),the birth weight was significantly lower than that in the American strain(P<0.05),and the 21-d weight and back fat thickness were significantly lower than those in the American and French strains(P<0.05);the total number of piglets born and the birth weight of the French strains were significantly higher than those in the French strains(P<0.05);no significant difference in birth weight,21-d weight and back fat thickness was found between the American and French strains(P>0.05),and no significant difference in 30 kg age and 100 kg age was found between the American,French and Danish strains(P>0.05).The total number of piglets born in the French×Danish crosses was significantly higher than that in the American×French crosses(P<0.01),and was significantly higher than that in the American×Danish crosses(P<0.05),and the number of live piglets born and the birth weight of the litter were significantly higher than those in the American×French and American×Danish crosses(P<0.01).No significant difference in the total number of piglets born,the number of live piglets born and the birth weight of the litter was found between the American×French and American×Danish crosses(P>0.05).21-d weight of the American×Frenchcrosses was significantly higher than that of the French×Danish crosses(P<0.05),and no significant difference in bi

关 键 词：品系 美系 法系 丹系 大约克猪 繁殖性能 生长性能 

分 类 号：S828.32[农业科学—畜牧学]