Pepper T A, Taylor D J
Vet Rec. 1977 Sep 10;101(11):196-9. doi: 10.1136/vr.101.11.196.
A computer program was used to analyse data from a large commercial pig unit over two years to assess reproductive efficiency and the efficiency of weaner production. Monthly inspections of the farm and quarterly post mortem examinations of all dead pigs provided further information. The effects of controlled changes in management on production were assessed. Overall the number of piglets reared per sow per year was increased from 15-1 to 17-2 and the eight-week weights improved from a mean of 10-3 kg to 15-0 kg during the two year-study period.
使用一个计算机程序对一家大型商业养猪场两年多的数据进行分析，以评估繁殖效率和断奶仔猪生产效率。每月对猪场进行检查，每季度对所有死亡猪进行尸检，以提供更多信息。评估了管理方式的可控变化对生产的影响。总体而言，在两年的研究期内，每头母猪每年饲养的仔猪数量从15.1头增加到17.2头，八周龄仔猪的平均体重从10.3千克提高到15.0千克。
