大白猪哺乳期背膘损失对繁殖性能的影响  

Effects of Backfat Loss of Lactating Sows on Reproduction Performance in Large White Pigs

作　　者：周伟伟 郭红洲 王立刚[1] 张跃博[1] 岳静伟 刘秋凤 王立贤[1] 姚军 张有权 张龙超 ZHOU Weiwei;GUO Hongzhou;WANG Ligang;ZHANG Yuebo;YUE Jingwei;LIU Qiufeng;WANG Lixian;YAO Jun;ZHANG Youquan;ZHANG Longchao(Institute of Animal Sciences,Chinese Academy of Agricultural Sciences, Beijing 100193,China;Shanxi Changrong Agricultural Science and Technology Co.,Ltd.,Yuncheng 044000,China)

机构地区：[1]中国农业科学院北京畜牧兽医研究所,北京100193 [2]山西长荣农业科技股份有限公司,运城044000

出　　处：《中国畜牧兽医》2018年第10期2797-2804,共8页China Animal Husbandry & Veterinary Medicine

基　　金：国家自然科学基金(31501919);国家科技支撑计划(2015BAD03B02-2);国家生猪产业技术体系(CARS-35);中国农业科学院科技创新工程(ASTIP-IAS02)

摘　　要：为了研究大白母猪哺乳期背膘损失对其繁殖性能的影响,试验选取大白母猪1 178头,统计6个胎次的总产仔数、产活仔数、健仔数、断奶窝重、断奶发情间隔、哺乳期背膘损失等性状,根据哺乳期的背膘损失情况将母猪分为6组:<0、0~1、1~2、3~4、5~6、>6mm,以断奶窝重为协变量,利用最小二乘检验开展组间总产仔数、产活仔数、健仔数、断奶发情间隔等性状的差异显著性分析。结果显示,大白母猪6个胎次平均总产仔数、产活仔数、健仔数、断奶窝重、断奶发情间隔和哺乳期背膘损失分别为13.67头、11.51头、10.32头、65.90kg、4.83d和2.89mm,大白母猪1~6胎产仔数在各组间存在显著差异(P<0.05)。综合全部6个胎次的结果可知,第4、5、6组间差异不显著(P>0.05),但均显著高于第1、2、3组(P<0.05);第4组总产仔数最高,达13.54头,比第1、2、3组分别高出1.90、2.29和1.63头(P<0.05)。虽然各胎次中各组间产活仔数和健仔数性状有时也出现显著差异,但综合分析6个胎次组间并未出现显著差异(P>0.05)。从断奶发情间隔性状来看,各组间均未出现显著差异(P>0.05)。结果表明,在大白猪生产中,将哺乳期母猪的背膘损失控制在3~4mm可以获得更高的总产仔数。In order to study the effect of backfat loss of lactating sows on reproductive performance in Large White pig,1 178 Large White pigs were selected,the total number of born(TNB),number of born alive(NBA),number of healthy born(NHB),weight of weaning litter(WWL),weaning estrus interval(WEI)and backfat loss of lactating sows(BLL)were recorded during 6 parities.The sows were divided into 6 groups based on BLL as<0,0-1,1-2,3-4,5-6 and>6 mm.WWL was used as a covariate to examine the significant differences between groups of TNB,NBA,NHB and WEI using the least squares test.The results showed that the average TNB,NBA,NHB,WWL,WEI and BLL for 6 parities sows were 13.67 heads,11.51 heads,10.32 heads,65.90 kg,4.83 d and 2.89 mm,respectively.There was significant difference in litter size traits in different groups of BLL during 6 parities(P<0.05).Based on the results of all 6 parities,there was no significant difference among groups 4,5 and 6 of BLL(P>0.05),but it were significantly higher than those in groups 1,2,and 3(P<0.05).The TNB in group 4 was the highest,reaching 13.54 heads,1.90,2.29 and 1.63 heads more than those in groups 1,2 and 3(P<0.05),respectively.Although there were sometimes significant differences of NBA and NHB in each group and each parity,there was no significant difference among 6 groups in 6 parities(P>0.05).From the standpoint of WEI,no significant differences were observed in groups(P>0.05).The results indicated that in the production of Large White pigs,higher TNB could be achieved by controlling the BLL in the range of 3 to 4 mm.

关 键 词：大白猪 哺乳期背膘损失 产仔性能 断奶发情间隔 

分 类 号：S828[农业科学—畜牧学]