二次补铁对哺乳仔猪生长发育的效果观察

选取长大初生仔猪６４７头，按分娩批次分成试验组和对照组和先后进行两次试验。试验组于第１天和第８天二次补铁，对照组仅于第３天一次补铁。结果表明，两次试验中试验组与对照组的断奶个体重均差异显著，同时，试验组和对照组的发病率及死亡率均差异不显著。二次补铁经济效益明显。

Effects of Twice Supplement of Fe on Growth and Development of Suckling Pig

Six hundreds and forty seven newborn pigs were divided into two groups according to parturition period, one group was supplied with Fe on one-day old and eight-day old, another group was supplied with Fe on three-day old. The results showed that the difference of individual weaning weight was significant between two groups (P<0.05), there were not significant differences of morbidity and mortality rate between two groups (P >0.05). the economic benifit was apparent for twice supplement of Fe in this experiment.