智能饲喂对群养初产母猪生产性能影响的试验研究

为研究规模化猪场智能饲喂对群养初产母猪生产性能的影响，选用90头4月龄体重相近的长大二元初产母猪，随机分为智能化组、群养群饲组和限位栏组，每组30头母猪，测定初产母猪的生产性能。结果表明，情期受胎分娩率，智能化组比群养群饲组提高10个百分点（P＜0.05），比限位栏组提高16.66个百分点（P＜0.01）；窝产仔数、窝产活仔数、初生窝重、泌乳力、窝断奶仔猪数和断奶窝重，智能化组比群养群饲组分别提高0.53头、0.81头、2.81千克、8.78千克、1.14头和9.42千克（P＜0.05），比限位栏组分别提高1.01头、1.33头、4.86千克、12.92千克、1.68头和10.89千克（P＜0.01）；育成率，智能化组比群养群饲组和限位栏组分别提高3.9和6个百分点（P＜0.01）；返情率，智能化组比群养群饲组降低3.96个百分点（P＜0.05），比限位栏组降低11.36个百分点（P＜0.01）；母猪淘汰率，智能化组为13.33%，比群养群饲组和限位栏组均降低3.34个百分点（P＜0.05）。智能化饲喂能显著提高母猪情期受胎分娩率和繁殖性能，降低返情率和淘汰率，提高其生产性能。

The Effect of Intelligent Feeding Modes on Production Performance of First Farrowing Sow

The purposes of this study were to evaluate the effect of different feeding modes on production performance of frist farrowing sow.90 four-month age similar weight first farrowing sow were divided into three treatments with intelligent feeding （experiment group）,herd feeding （controlⅠ） and limiding field feeding（controlⅡ）.The results show pregnant and parturition rate of experiment group improved 10.00 percentage points （P＆lt;0.05） than controlⅠand improved 16.66 percentage points（P＆lt;0.01） than controlⅡ.Litter size,alive litter size,birth weight,milk performance,litter size at weaning and weaning weight of littler of experiment group improved 0.53 pigs,0.81 pigs,2.81 kg,8.78 kg,1.14 pigs and 9.42 kg （P＆lt;0.05）than controlⅠ （P＆lt;0.05）,and improved 1.01 pigs, 1.33 pigs,4.86 kg,12.92 kg,1.68 pigs and 10.89 kg（P＆lt;0.01）than controlⅡ.Breeding rate of experiment group was improved 3.9 percentage points（P＆lt;0.01） than controlⅠand improved 6 percentage points（P＆lt;0.01） than controlⅡ. Rate of sows return estrous of experiment group reduced 3.96 percentage points （P＆lt;0.05） than controlⅠand reduced 11.36 percentage points （P＆lt;0.01） than controlⅡ.Sow elimination rate of experiment group was 13.33%, reducing 3.34 percentage points （P＆lt;0.05） than controlⅠand controlⅡ.Intelligent feeding modes can improve pregnancy rate,reproductive performance and production performance of frist farrowing sow,induce return estrous rate and elimination rate offrist farrowing sow.