不同初生重、日采食量和日采食次数对猪生长性能的影响  

Effects of different birth weight,average daily feed intake and number of visits per day on growth performance of pigs

作　　者：杨凯 高广雄 郭猛 夏攀洁 郭春秀 袁生 李智丽 赵云翔 YANG Kai;GA O Guang-xiong;GU O Meng;XIA Pan-jie;GU O Chun-xiu;YUAN Sheng;LI Zhi-li;ZHA O Yun-xiang(School of Life Science and Engineering,Foshan University,Foshan 528225,China;Guangxi Yangxiang Co.,LTD,Guigang 537100,China)

机构地区：[1]佛山科学技术学院生命科学与工程学院,广东佛山528225 [2]广西扬翔股份有限公司,广西贵港537100

出　　处：《佛山科学技术学院学报（自然科学版）》2022年第2期56-62,共7页Journal of Foshan University(Natural Science Edition)

基　　金：国家自然科学基金组织间国际合作研究重点项目(31961143020)。

摘　　要：主要研究育肥猪的日采食量(ADFI)、日采食次数(NVD)和初生重(BW)对其生长性能的影响。试验采集235头扬翔I号猪配套系商品猪生长性能相关的数据,其中日采食次数分为三组:A、B和C组;日采食量分为三组:低组(L)、中组(M)和高组(H);初生重分为低初生重(LBW)、中初生重(MBW)和高初生重(HBW)三个组别。结果表明,日采食次数对猪的饲料转化率和日增重具有显著影响(P<0.05)。其次,在日采食量方面,与L组相比,H组极显著提高了饲料转化率、日增重(ADG)和背膘厚(P<0.01),日采食量对眼肌面积无显著影响(P>0.05)。此外,初生重对饲料转化率、日增重、眼肌面积和背膘厚均无显著影响(P>0.05)。最后,日采食量与日增重极显著相关且相关度较高(r=0.74),背膘厚度与日采食量、日增重及日采食次数具有显著正相关,饲料转化率与日增重具有中等的极显著的负相关(r=-0.40)。因此,适当地提高猪的日采食量可有效改善生长性能。This experiment mainly studies the effects of the average daily feed intake(ADFI),number of visits per day(NVD)and birth weight(BW)of fattening pigs on their growth performance.In this experiment,the data of 235 Yangxiang I commercial pigs were collected,the NVD was divided into three groups:A,B and C,and the ADFI was divided into three groups:low group(L),medium group(M)and high group(H);BW was divided into three groups:low BW(LBW),medium BW(MBW)and high BW(HBW).The results showed that the NVD had significant effect on the feed conversation ratio(FCR)and average daily gain(ADG)of pigs(P<0.05).Secondly,in terms of ADFI,compared with the L group,the H group significantly improved the feed conversation ratio,average daily gain and backfat thickness(BF)(P<0.01),but ADFI had no significant effect on the loin eye area(LEA)(P>0.05).In addition,BW had no significant effect on FCR,ADG,LEA and BF(P>0.05).Finally,the ADFI is extremely significantly correlated with ADG and the correlation is high(r=0.74).The BF is significantly positively correlated with ADFI,ADG,and NVD.The FCR has a moderately significant negative correlation with ADG(r=-0.40).Therefore,appropriately increasing the ADFI of pigs can effectively improve growth performance.

关 键 词：猪 初生重 日采食量 日采食次数 生长性能 

分 类 号：S828[农业科学—畜牧学]