The effect of a silage inoculant on silage quality, aerobic stability, and meat production on farm scale.

ISRN veterinary science Pub Date : 2012-04-09 Print Date: 2012-01-01 DOI:10.5402/2012/345927

Y Acosta Aragón, J Jatkauskas, V Vrotniakienė

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引用次数: 30

Abstract

The effect of inoculation on nutrient content, fermentation, aerobic stability, and beef cattle performance for whole-plant corn silage treated with a commercial product (blend of homo- and heterofermentative lactic acid bacteria, BSM, blend of Enterococcus faecium, Lactobacillus plantarum, and Lactobacillus brevis, DSM numbers 3530, 19457, and 23231, resp.), was compared to a control treatment with no silage additives (CT). The material had a DM of 323 g/kg, crude protein, and water-soluble carbohydrate concentrations of 87.9 and 110.5 g/kg DM, respectively. BSM increased the fermentation rate with a significantly deeper pH (P < 0.01), a significant increase in the total organic acids concentration (P < 0.05), more lactic acid (P < 0.01), and numerically more acetic acid compared to CT. BSM significantly decreased the concentrations of butyric acid (P < 0.01), ethanol, and ammonia-N compared to the CT. BSM-treated silage decreased DM by 3.0 % (P < 0.01) and had a higher digestible energy and a higher metabolizable energy concentration by 2.3 (P < 0.01) and 1.00 % (P < 0.05), respectively, compared to untreated silage. Aerobic stability improved by more than 2 days in BSM silage. The DM intake of silage treated with BSM increased by 6.14 %, and improved weight gain and the feed conversion by 8.0 (P < 0.01) and 3.4%.

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一种青贮接种剂对农场规模青贮品质、好氧稳定性和肉品产量的影响。

采用商业产品(同种和异种发酵乳酸菌的混合物，BSM，粪肠球菌、植物乳杆菌和短乳杆菌的混合物，DSM编号分别为3530、19457和23231)处理整株玉米青贮，比较接种对营养成分、发酵、有氧稳定性和肉牛生产性能的影响。粗蛋白质和水溶性碳水化合物含量分别为87.9和110.5 g/kg DM, DM含量为323 g/kg。与CT相比，BSM显著提高了发酵率，且pH显著升高(P < 0.01)，总有机酸浓度显著升高(P < 0.05)，乳酸含量显著增加(P < 0.01)，乙酸含量显著增加。与CT相比，BSM显著降低了丁酸、乙醇和氨氮的浓度(P < 0.01)。与未处理青贮相比，bsm处理的青贮DM降低了3.0% (P < 0.01)，消化能和代谢能浓度分别提高了2.3 % (P < 0.01)和1.00 % (P < 0.05)。BSM青贮的有氧稳定性提高了2天以上。青贮饲料添加BSM后，干物质采食量提高6.14%，增重提高8.0 (P < 0.01)，饲料系数提高3.4%。

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ISRN veterinary science

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