饲料研究2024，Vol.47Issue(8)：114-120,7.DOI:10.13557/j.cnki.issn1002-2813.2024.08.021
收获期对冬种甜玉米秸秆青贮品质的影响
Effects of harvest period on silage quality of winter sweet corn straw
摘要
Abstract
In order to explore the suitable harvest period of winter sweet corn straw in western Guangdong,Jinyinsu NO.2,which is widely planted in western Guangdong,was selected as the test material and planted in the experimental field of Guangdong Ocean University.Straw was harvested 5,10 and 15 days after fresh ears were picked,and the nutrients,fermentation quality and rumen degradation rate were measured after 60 days of silage fermentation.The results showed that with the extension of the harvest period,the contentrations of dry matter(DM),crude protein(CP),soluble sugar(SS),starch,acid detergent insoluble protein(ADICP),soluble protein(SCP),rumen degrading protein(RDP),and the degradation rate of neutral detergent fiber(NDFD)and dry matter degradation rate(DMD)at 24 and 48 h were significantly increased(P＜0.05).The contentrations of ammoniacal nitrogen(NH3-N),NH3-N/TN and acetic acid(AA)were the highest in the straw silage harvested on the 15th day(P＜0.05).The study indicates that it is advisable to harvest straw 15 days after harvesting the ears for winter planting Jinyinsu NO.2 in western Guangdong.关键词
冬种甜玉米/营养价值/秸秆青贮/发酵品质/瘤胃降解率Key words
winter planting sweet corn/nutrient composition/straw silage/fermentation quality/ruminal degradability分类
农业科技引用本文复制引用
吴鹏鑫,王胜男,杨伟光,王志敬,尹福泉,卢艳丽..收获期对冬种甜玉米秸秆青贮品质的影响[J].饲料研究,2024,47(8):114-120,7.基金项目
雷州山羊繁育体系建立及快大高繁新品系培育(项目编号:2022-XDY-00-009) （项目编号:2022-XDY-00-009）
雷州山羊育繁推一体化关键养殖技术创新集成与示范(项目编号:080503052216) （项目编号:080503052216）
遂溪县城月镇肉羊健康养殖技术示范与推广(项目编号:A23086) （项目编号:A23086）
