饲料稻新材料的特性及添加物对其青贮品质的影响

摘要/Abstract

摘要： 青贮饲料对畜牧业生产极为重要,利用水稻进行青贮是缓解畜牧业粗饲料不足的重要途径之一。本试验研究了新选育饲料稻材料的特性,以及各种添加物对其青贮发酵品质和有氧稳定性的影响。青贮添加处理为:CK(对照)、LS(鼠李糖乳杆菌)、LP(植物乳杆菌)、G(2%葡萄糖)、B(10%菠萝皮)、GLS(G+LS)、GLP(G+LP)、BLS(B+LS)和BLP(B+LP),用塑料袋青贮100 d后,对饲料稻的青贮品质及有氧稳定性进行了分析。结果表明,饲料稻新材料含有较多的可溶性碳水化合物,自然青贮pH接近4.6;GLP处理的青贮品质最佳,pH值、乙酸和NH₃-N含量最低,乳酸含量及乳酸与乙酸比最高;LS单独添加对青贮品质无显著影响;添加葡萄糖或菠萝皮糖含量高的物质比添加乳酸菌效果好。青贮袋开封后,所有处理的有氧稳定性都较佳。

Abstract: Silage as a fermented product is increasingly becoming important to the production of animal husbandry. Rice silage is important to alleviate roughage shortage. The present work investigated the characteristics of new forage rice and effect of additives on its silage fermentation quality and aerobic stability. The ensiling treatments contained the addition of glucose at 2% FM (fresh matter) or pineapple residue at 10% FM, The inoculation of Lactobacillus rhamnosus or L. plantarum, and their combination. The silage fermentation quality and aerobic stability after ensiled for 100 days were investigated. The results showed that new forage rice contained more water soluble carbohydrates and the pH value was near to 4.6 when ensiled without any additives. The combination of L. plantarum and glucose had the best fermentation quality, with lowest pH and contents of acetic acid and NH₃-N, highest lactic acid content and ratio of lactic acid to acetic acid. L. rhamnosus inoculation alone had no significant effect on the silage fermentation quality. Glucose or pineapple residue addition had good aerobic stability when they were exposed to the air.

中图分类号:

S816.5⁺3

陈明霞,刘秦华,张建国. 饲料稻新材料的特性及添加物对其青贮品质的影响[J]. 草业学报, 2011, 20(5): 201-206.

CHEN Ming-xia, LIU Qin-hua, ZHANG Jian-guo. Characteristics of new forage rice and effects of additives on its silage quality[J]. Acta Prataculturae Sinica, 2011, 20(5): 201-206.

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