Adding distiller's grains and molasses on fermentation quality of rice straw silages

Adding distiller's grains and molasses on fermentation quality of rice straw silages
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添加酒糟和糖蜜对稻草青贮饲料发酵品质的影响

DOI:
10.1590/0103-8478cr20150851
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发表时间:
2016-10
期刊:
Ciência Rural
影响因子:
--
通讯作者:
Shao Tao
Shao Tao
中科院分区:
其他
文献类型:
--
作者:
Yuan XianJun;Dong ZhiHao;Desta Seare Tajebe;Wen AiYou;Zhu Xiaoxuan;Rong Ting;Shao Tao

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青贮是一种简单、低成本的策略,可以长期保存和环境友好地利用农业副产品,如反刍动物的秸秆和酒糟(DG)。将不同比例的DG和稻草(即0,10,20或30%的DG)与或不与5%的糖蜜添加青贮发酵和化学变量的影响进行了评估。本研究采用4 × 2析因安排的随机区组设计进行,重复三次,使用1 L容量的实验室筒仓(n=24)。尽管DG和糖蜜添加量之间存在显著的交互作用(P<0.01),但总体而言,DG添加量的增加使pH值、乙酸(AA)、丁酸(BA)和氨氮浓度呈线性下降(P<0.01),乳酸(LA)浓度呈线性上升(P<0.01)。丙酸浓度在不添加糖蜜的情况下呈线性下降,随着DG比例的增加呈线性上升(P<0.01)。添加DG显著提高了加糖蜜和不加糖蜜青贮的干物质、水溶性碳水化合物和粗蛋白含量(P<0.01),显著降低了NDF含量(P<0.01)。从最大限度地利用稻草的角度出发,建议采用10%的DG与5%的糖蜜混合青贮。
Ensilage is a simple and low-cost strategy to enable long term preservation and environmentally friendly utilization of agricultural by-products, such as straws and distiller's grains (DG) for ruminants. Effect of mixing different proportions of DG and rice straw (i.e. 0, 10, 20 or 30% of DG) with or without 5% molasses addition on fermentation and chemical variables of silages was evaluated. The study was conducted as a randomized blocks design in a 4 × 2 factorial arrangement, with three replications, using laboratory silos of 1L capacity (n=24). Despite a significant interaction (P<0.01) between DG and molasses addition was observed for most variables, in general the increased addition of DG linearly decreased the pH value, acetic acid (AA), butyric acid (BA) and ammonia N concentration (P<0.01), and increased the lactic acid (LA) concentration (P<0.01). Exception was the propionic acid concentration which linearly decreased without molasses addition and linearly increased with molasses addition at increased proportion of DG (P<0.01). In both silages with or without molasses the addition of DG increased the dry matter, water soluble carbohydrates and crude protein (P<0.01), and decreased the NDF content (P<0.01). Based on the perspective of maximum utilization of rice straw, the mixture of 10% of DG associated to 5% molasses at ensilage process is recommended.
DOI: --
发表时间: 2001-10
期刊: Science bulletin of the Faculty of Agriculture, Kyushu University
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