提高生产母猪年产胎数的初步探索

PRELIMINARY STUDY ON RAISING THE SOWS'S FARROWING FREQUENCY

从1994－1997年，我场采用母猪常年发情，随时配种，仔猪早期断奶，缩短生产母猪哺乳期，早期配种，搞好仔猪培育措施，调整猪群结构等一系列综合配套技术后，使生产母猪的年产胎数由原来的1．8窝提高到2．3窝，每头母猪多产仔猪3—5头，取得了良好的经济效益。

1994 through 1997,the annual farrowing frequency of 125 head of sow in the farm had added from 1.8 to 2.3,the piglets of each sow increased 3 to 5 head, and good economic efficiency been achieved, by adopting a series of technique, such as the perennial oestrus, momentary hybridization, early piglet ablactation,sow's suckling period reduction,early hybridization, piglet breeding improvment and flock structure adjustment.