凋萎时间对青玉米秸秆青贮饲料营养成分的影响

摘要/Abstract

摘要： 【研究目的】青贮饲料调制是一项短时间内的突击性工作，刈割青玉米秸秆未能尽快调制青贮致使青贮饲料质量受影响；【方法】为此本试验选用农大108玉米秸秆收获后凋萎的1d、3d、5d、7d调制青贮，以研究刈割后凋萎时间对青贮饲料营养成分的影响；【结果】在本试验的凋萎条件下，试验期内玉米秸秆中干基水溶性碳水化合物含量、水分含量逐渐下降，凋萎7d的水溶性碳水化合物、水分含量显著低于其它处理组，在凋萎的1d、3d、5d、7d调制青贮，凋萎7d的青贮pH和氨态氮比例显著高于凋萎1d(pH,4.82比5.27；氨态氮/总氮,5.90%比8.56%)，但青贮饲料中乳酸、粗蛋白、中性洗涤纤维和酸性洗涤纤维含量没有显著差异。【结论】结果表明收刈后青玉米秸秆5d之内可以调制青贮

中图分类号:

S816.5

余汝华,莫放,赵丽华,张晓明,陈瑶. 凋萎时间对青玉米秸秆青贮饲料营养成分的影响[J]. 中国农学通报, 2007, 23(6): 13-13.

Yu Ruhua, Mo Fang, Zhao Lihua, Zhang Xiaoming, Chen Yao. Effect of Wilting on Chemical and Physical Characteristics of Silage with Corn Stalk[J]. Chinese Agricultural Science Bulletin, 2007, 23(6): 13-13.

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