长白猪育肥阶段采食行为及影响因素分析

Analysis on Feeding Behavior and Influencing Factors of Landrace Pigs in Fattening Stage

试验数据来源于2018年测定的广西某种猪场栏内444头长白猪使用自动喂料系统(FIRE)的采食情况,每日记录长白猪生长育肥阶段(90~160日龄)的采食量和采食行为。分析长白猪随日龄变化的采食行为规律,以及性别、胎次、气候因素对猪采食行为和饲料利用效率的影响,以期为育肥猪采食行为性状选育、提高经济效益及科学高效养殖提供理论依据。结果表明:①公猪和母猪采食行为区别不大,但在每日采食次数上表现出差异;②在生长育肥阶段,公猪的生长性能高于母猪;③较冷环境下的育肥猪平均每日采食量更多、平均日增重更高、采食速度更快。

The data in this study were derived from the daily feed intake records of 444 Landrace pigs in the growing and finishing stage(90~160 days) of a certain pig farm in Guangxi in 2018,used an automatic feeding system(FIRE) in the measurement pen.By analyzed the variation law of feeding behavior of Landrace pigs with age and the effects of gender,parity and climate factors on feeding behavior and feed utilization efficiency,in order to provided a theoretical basis for breeding fattening pigs to improved economic benefits and scientific and efficient breeding.The results showed that:①the feeding behavior of boars and sows was not very different,and there was a difference in the number of daily feed intakes;②in the growth and fattening stage,the growth performance of boars was higher than that of sows;③the fattening pigs in the colder environment had higher average daily feed intake,higher daily gain and faster feed speed intake.