杂交狼尾草打浆后饲喂早中期妊娠母猪效果研究

开展以沼液浇灌的“闽牧6号”杂交狼尾草（Pennisetum americarum×P．purpureum cv．Minmu 6）打浆不同比例饲喂怀孕早中期母猪(0～80 d)效果研究，试验设4个饲喂量处理，处理1（CK）~处理4，妊娠早中期分别饲喂打浆鲜草0、2、4、6 kg/(头·d)，牧草以折合成干物质等量替代配合饲料。结果表明，4个处理的母猪窝产仔数分别为13.42、10.60、13.64和11.50头，窝活仔数分别为12.42、10.30、12.73和9.92头，饲喂2和4 kg/（头·d）打浆鲜草在活仔数方面与对照差异不显著，而饲喂6 kg/（头·d）打浆鲜草则显著低于不饲喂鲜(P<0.05)。饲喂牧草的处理仔猪初生体质量、健仔率都比对照得到不同程度的提高，试验结果还表明，怀孕早中期母猪通过饲喂2～4 kg/（头·d）狼尾草草浆来补充纤维来源，可提高母猪的生产性能和仔猪品质，尤其以饲喂4 kg/（头·d）打浆鲜草，饲粮粗纤维含量为8.24%～9.41%，效果最佳。

Effects of feeding pulped hybrid pennisetum on early and mid-gestation sows

Effects of pulped hybrid pennisetum(Pennisetum americanum × P.purpureum cv.Minmu 6),which was fertilized with biogas slurry,on early and mid-gestation sows(0-80 d) were investigated in this study.There were 4 dietary treatments with different proportions of pulped hybrid pennisetum to feed the sows,including 0 kg/(head·d)(CK),treatment 2,4 treatment 3 and 6 treafment 4 kg/(head·d).Fresh hybrid pennisetum was converted into dry matter to replace the equivalent feed.The results showed that litter size of the four treatments were 13.42,10.60,13.64 and 11.50;and numbers of live cubs in nest were 12.42,10.30,12.73 and 9.92,respectively.There was no significant difference among the CK,treatment 2 and treatment 3(P>0.05),while the number of live cubs of treatment 4 was significantly lower than that of the CK(P<0.05).The birth weight and rate of healthy piglets of the three treatments were increased to varying degrees compared with that of the CK.In conclusion,to feed 2-4 kg/(head·d) pulped hybrid pennisetum to supplement forage fiber for the early and mid-gestation sows could improve the production performance of sows and the healthg piglets.The best performance was given by fed 4 kg/(head·d) pulped hybrid pennisetum,which contained the fiber content of 8.24%~9.41%.