卵磷脂对泌乳母猪育仔性能和乳成分的影响研究

目的]探讨卵磷脂在哺乳母猪上的应用效果。方法]设4个处理组,Ⅰ组喂基础日粮,Ⅱ、Ⅲ、Ⅳ组在基础日粮中分别添加4%豆油、4%卵磷脂、4%卵磷脂+4%豆油,研究卵磷脂对泌乳母猪育仔性能和乳成分的影响。结果]各添加组均显著提高了20日龄2、8日龄仔猪窝重和20日龄母猪泌乳量(P<0.05),混合添加组的作用极显著(P<0.01)。豆油和卵磷脂的同时添加显著降低了泌乳期的母猪失重、母猪耗料,缩短了母猪断奶后至发情间隔(P<0.05)。各添加组显著提高了乳脂肪含量(P<0.05),Ⅱ、Ⅲ、Ⅳ组分别比Ⅰ组提高了30.49%2、6.52%、22.16%。各添加组均降低了仔猪死亡率。结论]4%卵磷脂+4%豆油提高泌乳母猪育仔性能的效果好,同时增加了乳脂肪含量。

Study on Effect of Lecithin on Piglet Nursing Performance and Composition of Lactating Sow

Objective] The aim was to discuss application effect of lecithin on lactating sow.Method] The effect of lecithin on piglet nursing performance and milk composition was studied by setting up four treatment groups,the basal diet was fed in Group I,4% of soybean oil,4% of lecithin and 4% of lecithin + 4% soybean oil were added in basal diet for Group Ⅱ,Ⅲ and Ⅳ resp.Result] The cote weight of piglet for both 20-day old and 28-day old and sow lactating volume(P<0.05) for each adding group were all increased significantly,and the effect of mixed adding groups was extremely remarkable(P<0.01).Adding of soybean oil and lecithin simultaneously decreased evidently the weigh loss,feed consumption of sow in the lactation period,and shorten the interval between weaning and oestrus of sow(P<0.05).The content of milk fat(P<0.05) was heightened in each adding group,Group Ⅱ,Ⅲ and Ⅳ increased by 30.49%,26.52% and 22.16% resp.than that of Group I.And piglet mortality was all reduced in each adding group.Conclusion] The effect of improvement of piglet nursing performance of lactating sow by adding 4% of lecithin + 4% soybean oil was good,and the content of milk fat was also increased.