杂交狼尾草打浆后饲喂早中期妊娠母猪效果研究

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

开展以沼液浇灌的"闽牧6号"杂交狼尾草(Pennisetum americarum×P.purpureumcv.Minmu 6)打浆不同比例饲喂怀孕早中期母猪(0～80d)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、6kg/(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4kg/(头.d)打浆鲜草在活仔数方面与对照差异不显著,而饲喂6kg/(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2～4kg/(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4kg/(头.d)打浆鲜草,饲粮粗纤维含量为8.24%～9.41%,效果最佳。

Effects of pulped hybrid pennisetum （Pennisetum americanum X 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%.