首页|青贮玉米与全株大豆混合比例对青贮品质的影响

青贮玉米与全株大豆混合比例对青贮品质的影响

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  • 国家科技期刊平台
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为探讨青贮玉米与全株大豆不同混合比例对青贮品质的影响，以 2 种饲草鲜重比设置青贮玉米单贮(CK1)、全株大豆单贮(CK2)、青贮玉米与全株大豆1∶1(M1)、2∶1(M2)、3∶1(M3)、4∶1(M4)、1∶2(M5)混合，共7 个处理。青贮90d后，进行感官评定、发酵品质、营养价值和有氧稳定性评价。结果表明:CK1、CK2 感官评定为"良好"，混合处理均为"优等";CK2 的pH最高(4。69)，其余处理pH<4。2。乳酸含量在混合处理中都显著高于CK1、CK2，乙酸含量在CK2 中显著高于其他处理(P<0。05)。粗蛋白含量随着全株大豆比例的增加而增加，淀粉含量随着青贮玉米比例的增加而增加。混合处理的中性洗涤纤维、酸性洗涤纤维含量都显著低于CK1、CK2(P<0。05)。RFV由高到低为M1>M2>M3>M4>M5>CK2>CK1;混合处理的有氧稳定性优于CK1、CK2。青贮玉米与全株大豆混合改善了青贮料的发酵品质，提高了营养价值和有氧稳定性，其中混合比例为1∶1时效果最佳。
Effects of Different Mixing Ratios on the Quality of Corn-soybean Whole Plant Mixed Silage
In order to explore the effect of different mixing ratios on the silage of whole corn and soybean,the 7 treatments were set to ensiled:Silage corn(CK1),whole soybean(CK2),silage corn with soybean 1∶1(M1),silage corn with soybean 2∶1(M2),silage corn with soybean 3∶1(M3),silage corn with soybean 4∶1(M4),and silage corn with soybean 1∶2(M5).After 90 days of silage,the sensory evaluation,fermentation quality,nutritional value and aerobic stability were determined.The results showed that the sensory evaluation of CK1 and CK2 were rated as'good',and the rest were rated as'excellent'.CK2 had the highest pH(4.69)and the pH of the rest treatments was below 4.2.The lactic acid content in M1,M2 and M3 was significantly higher than that in other treatments.The acetic acid in CK2 was significantly higher than that in other treatments(P<0.05).The content of crude protein increased with the increase of the proportion of whole soybean,and the content of starch increased with the increase of the proportion of silage corn.The content of medium detergent fiber and acid detergent fiber in mixed treatments were significantly lower than that in CK1 and CK2.The RFV from high to low was M1>M2>M3>M4>M5>CK2>CK1.The aerobic stability of mixed silage was better than CK1 and CK2.It can be seen that the fermentation quality,nutritional value and aerobic stability can be improved by mixing corn and bean,and the best mixing ratio of corn and bean was 1∶1.

silage maizewhole plant soybeanmixing ratiofermentation qualitynutritional valueaerobic stability

王晓春、马晓霞、杨天辉、高婷、梁小军

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宁夏农林科学院 动物科学研究所,宁夏 银川 750002

宁夏茂盛草业有限公司,宁夏 银川 750023

青贮玉米 全株大豆 混合比例 发酵品质 营养价值 有氧稳定性

宁夏自治区重点研发计划子课题宁夏农林科学院-宁夏农业高质量发展和生态保护科技创新示范项目子课题现代农业产业技术体系建设项目

2021BBF02019NGSB-2012-12-09CARS-37

2024

10.11861/j.issn.1000-9841.2024.03.0376

大豆科学
黑龙江省农业科学院

大豆科学

CSTPCD北大核心
影响因子：0.641
ISSN：1000-9841
年,卷(期)：2024.43(3)
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