不同添加剂对玉米秸秆青贮料pH及粗蛋白质含量的影响
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摘要
为研究不同比例的添加剂糖蜜和尿素对玉米秸秆青贮饲料中pH及蛋白质含量的影响,试验设计了空白对照组和添加不同剂量添加剂的试验组,青贮60 d后对青贮饲料进行了pH测定和粗蛋白质含量测定。结果表明,玉米秸秆直接青贮,pH差异不显著,但粗蛋白质含量较低;而加入添加剂的各组青贮玉米秸秆的粗蛋白质含量明显提高,其中添加尿素0.6%和糖蜜6.0%的整体水平优于其他组。另外,糖蜜含量越高pH越低,即青贮料的品质越好。
In order to study the effects of molasses and urea on the pH and protein content of corn straw silage,a blank control group and experimental groups with different doses of additives were designed. After sixty days of silage, the pH and crude protein content were determined. The results showed that the pH of directly ensiled corn stalk had no significant difference. But the content of crude protein was low. The crude protein content of silage corn straw was significantly increased in each group with additives. The overall level of added 0.6% urea and 6.0%molasses was better than other groups. In addition, the higher molasses content was, the lower pH was, that was, the better quality of silage was.
In order to study the effects of molasses and urea on the pH and protein content of corn straw silage,a blank control group and experimental groups with different doses of additives were designed. After sixty days of silage, the pH and crude protein content were determined. The results showed that the pH of directly ensiled corn stalk had no significant difference. But the content of crude protein was low. The crude protein content of silage corn straw was significantly increased in each group with additives. The overall level of added 0.6% urea and 6.0%molasses was better than other groups. In addition, the higher molasses content was, the lower pH was, that was, the better quality of silage was.
引文
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[9]陈鑫珠,张建国.刈割到青贮填装前乳酸菌的动态变化[J].草地学报,2017,25(3):646-650.
[10]张庆华,姚忠军,杨连玉.糖化处理对玉米秸秆干物质、纤维组分瘤胃降解影响[J].吉林农业大学学报,2000(3):85-88.
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[13]安娟.尿素的不同添加量及不同添加方式对饲喂玉米秸秆日粮绵羊消化代谢的影响[D].乌鲁木齐:新疆农业大学,2005.
[14]玉柱,孙启忠,于艳冬,等.添加尿素和乳酸菌制剂对玉米秸秆青贮料品质的影响[J].中国畜牧杂志,2009,45(3):37-40.
[15]王庆雷.青贮饲料的主要添加剂[J].中国饲料,1998(13):15-16.
[16]周根来,张伟,殷洁鑫,等.豌豆蛋白粉和大豆粕的营养成分及氨基酸全肠表观消化率分析[J].中国畜牧杂志,2018,54(9):83-88.
[2]冯骁骋.天然草地牧草青贮机理及品质调控研究[D].呼和浩特:内蒙古农业大学,2014.
[3]娜仁花.不同日粮对奶牛瘤胃甲烷及氮排放的影响研究[D].北京:中国农业科学院,2010.
[4]刘建新,杨振海,叶均安,等.青贮饲料的合理调制与质量评定标准[J].饲料工业,1999(3):4-7.
[5]李龙兴,龚正发,黎俊,等.糖蜜和乳酸菌对去穗玉米秸秆青贮发酵品质的影响[J].草地学报,2018,26(4):1 026-1 029.
[6]李大鹏.添加剂对玉米秸秆青贮质量影响的研究[J].黑龙江八一农垦大学学报,2002(4):65-68.
[7]青贮饲料质量评定标准(试行)[J].中国饲料,1996(21):5-7.
[8]李长春.玉米品种及刈后放置时间对秸秆饲用价值的影响机制[D].呼和浩特:内蒙古农业大学,2017.
[9]陈鑫珠,张建国.刈割到青贮填装前乳酸菌的动态变化[J].草地学报,2017,25(3):646-650.
[10]张庆华,姚忠军,杨连玉.糖化处理对玉米秸秆干物质、纤维组分瘤胃降解影响[J].吉林农业大学学报,2000(3):85-88.
[11]吴进东,陈云波,孙武.添加尿素对青贮玉米秸秆品质的影响[J].皖西学院学报,2007(5):87-89.
[12]陈育峰,刘艳芬,万江虹,等.添加尿素和糖蜜对甘蔗尾打捆青贮品质的影响[J].中国畜牧兽医,2008(2):20-22.
[13]安娟.尿素的不同添加量及不同添加方式对饲喂玉米秸秆日粮绵羊消化代谢的影响[D].乌鲁木齐:新疆农业大学,2005.
[14]玉柱,孙启忠,于艳冬,等.添加尿素和乳酸菌制剂对玉米秸秆青贮料品质的影响[J].中国畜牧杂志,2009,45(3):37-40.
[15]王庆雷.青贮饲料的主要添加剂[J].中国饲料,1998(13):15-16.
[16]周根来,张伟,殷洁鑫,等.豌豆蛋白粉和大豆粕的营养成分及氨基酸全肠表观消化率分析[J].中国畜牧杂志,2018,54(9):83-88.