Study on the Nutritional Quality of Italian Ryegrass and Soybean Straw Mixed Silages

doi:10.11733/j.issn.1007-0435.2015.01.031

Acta Agrestia Sinica ›› 2015, Vol. 23 ›› Issue (1): 200-204.DOI: 10.11733/j.issn.1007-0435.2015.01.031

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Study on the Nutritional Quality of Italian Ryegrass and Soybean Straw Mixed Silages

LUO Yan¹, CHEN Tian-feng¹, LI Jun-lin¹, GUO Xu-sheng², YU Zhu³, ZHANG Xin-quan¹, YAN Yan-hong¹

1. Department of Grassland Science, Sichuan Agriculture University, Ya'an, Sichuan Province 625014, China;
2. State Key Laboratory of Grassland and Agro-Ecosystems, Lanzhou University, Lanzhou, Gansu Province 730000, China;
3. Institute of Grassland Science, China Agricultural University, Beijing 100193, China

Received:2014-07-08 Revised:2014-12-15 Online:2015-02-15 Published:2015-01-31

多花黑麦草与大豆秸秆混合青贮品质的研究

罗燕¹, 陈天峰¹, 李君临¹, 郭旭生², 玉柱³, 张新全¹, 闫艳红¹

1. 四川农业大学动物科技学院, 四川雅安 625014;
2. 兰州大学草地农业生态系统国家重点实验室, 甘肃兰州 730000;
3. 中国农业大学草地研究所, 北京 100193

通讯作者: 闫艳红
作者简介:罗燕(1990-),女,内蒙古包头人,硕士研究生,主要从事饲草调制加工与贮藏研究,E-mail:qinghe2juelian5@sina.com
基金资助:
公益性行业(农业)科研专项(201303061);现代农业产业技术体系建设专项(CARS-35-05);春晖计划项目(Z2012033)资助

Abstract

Abstract:

In order to reasonably utilize forage resource of southwest China, Italian ryegrass (Lolium multiflorum) and soybean (Glycine max) straw were mixed and ensiled at different proportions for 42 days to assess the best ratio of the mixed silage, then the silage quality of all treatments were determined and analyzed. The results showed that the dry matter contents of mixed silages increased significantly by adding the soybean straw. The loss ratios of crude protein and water solution carbohydrate decreased significantly by adding the soybean straw, whereas the loss ratios of acid detergent fiber and neutral detergent fiber increased significantly. In addition, the ratio of ammoniacal nitrogen/total nitrogen was reduced with soybean straw addition. It was suggested that the 8:2 and 7:3 mixed proportions of Italian ryegrass and soybean straw were more appropriate for improving silage quality and maximum using straw.

Key words: Mixed silage, Italian ryegrass, Soybean straw, Silage quality, Loss ratio

摘要：

为充分利用西南地区的饲草资源,以多花黑麦草(Lolium multiflorum)和大豆(Glycine max)秸秆为材料,研究其混合青贮饲料的营养品质,筛选出适宜的混贮比例.设不同比例多花黑麦草与大豆秸秆混贮,青贮42 d后测定青贮饲料的营养品质.结果表明:大豆秸秆与多花黑麦草混贮显著(P<0.05)提高了青贮原料干物质(DM)含量,添加大豆秸秆显著(P<0.05)降低了青贮原料的粗蛋白(CP)和可溶性碳水化合物(WSC)的损失率,显著(P<0.05)提高了酸性洗涤性纤维(ADF)和中性洗涤性纤维(NDF)的降解率;同时大豆秸秆与多花黑麦草混贮显著(P<0.05)降低了氨态氮/总氮(AN/TN)的值.从青贮品质及秸秆利用最大化的角度出发,建议多花黑麦草与大豆秸秆以8:2和7:3的比例混贮较为适宜.

关键词: 混合青贮, 多花黑麦草, 大豆秸秆, 青贮品质, 损失率

CLC Number:

S816.53

LUO Yan, CHEN Tian-feng, LI Jun-lin, GUO Xu-sheng, YU Zhu, ZHANG Xin-quan, YAN Yan-hong. Study on the Nutritional Quality of Italian Ryegrass and Soybean Straw Mixed Silages[J]. Acta Agrestia Sinica, 2015, 23(1): 200-204.

罗燕, 陈天峰, 李君临, 郭旭生, 玉柱, 张新全, 闫艳红. 多花黑麦草与大豆秸秆混合青贮品质的研究[J]. 草地学报, 2015, 23(1): 200-204.

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Study on the Nutritional Quality of Italian Ryegrass and Soybean Straw Mixed Silages

多花黑麦草与大豆秸秆混合青贮品质的研究

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