不同品种母猪泌乳性能及仔猪对母乳、饲料利用率的研究

Study on the Milk Characters of Different Breeds and the Utilized Efficient of Suckers to the Sow Milk and Feeds

在相近的饲养管理条件下,比较研究了二花脸猪、上海白猪和大白猪经产母猪的泌乳性能,其结果表明,3个品种猪的平均放乳间隔时间、每次放乳持续时间和日泌乳量均有显著差异。母猪泌乳日龄与每天放乳次数具有函数方程y=a-bt关系。3个品种哺乳仔猪平均日增重分别为214.50、238.72和297.50g,每增重1kg消耗消化能分别为7928、8369和8100kcal,品种间均有显著差异。二花脸猪哺乳仔猪对母乳和饲料的利用率均高于另2个猪种。

The milk characters of delivered sows and the growths of the sucking pig were studied among ErHuaLain, Shanghai Be and Da Be(Yorkshire) in breed under the conditions of the nurse close on eaeh other. It showed that the averges of plastochron between times of milk ejecting, times lasting in per eject and daily yield are all difference evidently, the functional equation Y=a-bt have been drawn out from the relationshhip between the milk age in days and times ejecting daily in the three kinds of sows. The averages of daily gain and digestible energy consumption density 9(kcal/kg) among the sucking pigs of these sows are also of clear difference. They are 214.50g, 238.72g, 297.50g and 7928 kcal, 8369 kcal, 8100 kcal respectively in these animals. The utilized coefficient of ErHuaLain suckers to the milk and feeds are the highest than other ones.