奶山羊催乳复合青贮苹果渣饲料的研制

旨在开发奶山羊复合青贮苹果渣催乳饲料。选择混合菌型,添加到苹果渣中青贮30d,然后利用发酵苹果渣对奶山羊进行30d的饲喂试验。将33只奶山羊按照配对试验设计原则平均分成对照组、苹果渣发酵组(Ⅰ)和苹果渣发酵添加中草药组(Ⅱ)。测定发酵后苹果渣的粗纤维、脂肪和糖含量,发现它们分别下降22.89%、31.99%和96.69%;与对照组比较,Ⅰ组、Ⅱ组的乳成分(脂肪、非脂固形物、蛋白质、乳糖、灰分)极显著提高(P<0.01),产奶量显著提高(P<0.05),但Ⅰ组与Ⅱ组的产奶量和乳成分差异均不显著。在饲料中添加发酵苹果渣可以提高奶山羊的生产性能,而发酵苹果渣中添加中草药与前者的作用差异不显著。

Research on Composite Silage of Apple Pomace for Promoting Lactation of Dairy Goat

The objective of the present study was to develop composite silage of apple pomace for promoting lactation of dairy goat.Mixed bacteria were added directly into apple pomace to ferment for 30 days.30 days feeding experiment was conducted.33 dairy goats were divided into 3 groups with diets as follows: control diet,diet supplemented with composite apple pomace silage(Ⅰ),diet supplemented with composite apple pomace silage and Chinese herbal medicine(Ⅱ).The result showed that the content of crude fibre,fat and sugar declined by 22.89%,31.99% and 96.69%,respectively;The milk compositions(fat,lactose,non-fat solids,ash and protein) of groupsⅠ and Ⅱ were significantly(P<0.01) higher than those of the control.The milk yield in groupsⅠ and Ⅱ were remarkable(P<0.05) compared with the control,whereas there were no evident difference between groupⅠand groupⅡ in milk yield and composition.Diet supplemented with composite apple pomace silage can improve milk performance of dairy goats,but diet supplemented with composite apple pomace silage and Chinese herbal medicine did not have more significant effect than the effect of the former.