含水量和添加剂对饲用谷子青贮营养成分和发酵品质的影响

doi:10.12160/j.issn.1672-5190.2022.03.005

摘要/Abstract

摘要： [目的]研究预干处理、添加糖蜜和植物乳杆菌混合制剂对饲用谷子青贮营养成分和发酵品质的影响。[方法]以灌浆期106号和107号饲用谷子为原料,采用双因素（含水量×添加剂）完全随机试验设计,分别用新鲜及预干处理的谷子调制青贮;利用2种不同含水量的谷子调制的青贮中,无添加为对照组（CK）,添加1%糖蜜和0.2%植物乳杆菌的混合制剂为试验组（ML）,每个处理3个重复,于20~30 ℃室温环境中发酵45 d。开封后测定青贮干物质含量、常规营养成分含量、pH值、乳酸含量及挥发性脂肪酸含量。[结果]预干处理极显著（P<0.01）提高2种饲用谷子青贮的干物质含量和pH值,显著（P<0.05）提高106号饲用谷子青贮的中性洗涤纤维含量,同时,极显著（P<0.01）降低乳酸和乙酸含量。106号饲用谷子预干青贮ML组的干物质含量极显著（P<0.01）高于CK组。2种饲用谷子的新鲜和预干青贮ML组的pH值均极显著（P<0.01）低于CK组,乳酸含量极显著（P<0.01）高于CK组。2种饲用谷子预干青贮ML组的乙酸含量显著（P<0.05）高于CK组。[结论]预干处理有利于营养成分的保留,但对青贮发酵有一定的抑制作用。添加糖蜜和植物乳杆菌对营养成分无显著影响,但能促进青贮乳酸发酵,显著降低pH值,提高乳酸/乙酸值。

关键词: 饲用谷子, 含水量, 添加剂, 青贮, 营养成分, 发酵品质

Abstract: [Objective] To investigate the effects of pre-drying treatment and supplementation of mixed preparations composed of molasses and Lactobacillus plantarum on nutritional components and fermentation quality of forage millet silage. [Method] The forage millet varieties of NO.106 and NO.107 harvested at the filling stage were used as materials. A two-factor （water content × additive） completely randomized designed trail was carried out. For both of the millet varieties, the silage was prepared with fresh and pre-dried materials containing different water contents, respectively. The control groups （CK） had no addition of additive, while the experimental groups （ML） had a combined addition of 1% molasses and 0.2% Lactobacillus plantarum. Each treatment had three repeats and fermented for 45 days at room temperature （20-30 ℃）. The contents of dry matter, conventional nutritional components, lactic acid and volatile fatty acids as well as pH value of the unsealed silage were measured after fermentation. [Result] Pre-drying treatment extremely significantly （P<0.01） increased the dry matter content and pH value of the two forage millet silage. Furthermore, it significantly （P<0.05） increased the neutral detergent fiber content as well as extremely significantly （P<0.01） decreased the contents of lactic acid and acetic acid of NO.106 forage millet silage. The dry matter content in the pre-dried ML group of NO.106 forage millet silage was extremely significantly （P<0.01） higher than that in its corresponding CK group. The pH value in the fresh and pre-dried ML groups of both forage millet silage was extremely significantly （P<0.01） lower than that in their corresponding CK groups, while the lactic acid content was extremely significantly （P<0.01） higher. The acetic acid content in pre-dried ML groups of both forage millet silage was significantly （P<0.05） higher than that in their corresponding CK groups. [Conclusion] Although pre-drying treatment was conductive to retain the nutritional components in the forage millet silage, it had an inhibitory effect on silage fermentation. Addition of molasses and Lactobacillus plantarum had minor influence on nutritional components, but it stimulated the lactic acid fermentation, dramatically lowered pH value, and raised lactic acid/acetic acid value of the forage millet silage.

Key words: forage millet, water content, additive, silage, nutritional components, fermentation quality

中图分类号:

S816.53

韩红燕, 赵启南, 贾淑萍, 张春华, 张永虎, 薛艳林, 孙林, 王超. 含水量和添加剂对饲用谷子青贮营养成分和发酵品质的影响[J]. 畜牧与饲料科学, 2022, 43(3): 30-35.

HAN Hong-yan, ZHAO Qi-nan, JIA Shu-ping, ZHANG Chun-hua, ZHANG Yong-hu, XUE Yan-lin, SUN Lin, WANG Chao. Effects of Water Content and Additive on Nutritional Components and Fermentation Quality of Forage Millet Silage[J]. Animal Husbandry and Feed Science, 2022, 43(3): 30-35.

参考文献

[1] 周汉章,刘环,王新玉,等.播量与水肥耦合对河北秋闲田饲用谷子产量的影响[J].草原与草坪,2016(2):34-43.
[2] 智慧,牛振刚,贾冠清,等.谷子干草饲用品质性状变异及相关性分析[J].作物学报,2012,38(5):800-807.
[3] 海宝,双权,松梅.优质饲草料——谷子[J].内蒙古草业,1998,4:11.
[4] 李元迎,李万贵,李瑞影.谷草青贮注意事项及品质评价[J].现代农村科技,2017,3:95-96.
[5] GOLLOP N,ZAKIN V,WEINBERG Z G.Antibacterial activity of lactic acid bacteria included in inoculants for silage and in silages treated with these inoculants[J]. Journal of Applied Microbiology,2005,98(3):662-666.
[6] CHARMLEY E.Intake,liveweight gain and feed preference by steers fed combinations of lucerne and Westerwolds ryegrass silages[J].Grass and Forage Science,2002,57(1):11-18.
[7] 沈名灿,罗佳捷,张彬,等.青贮工艺及青贮饲料在奶牛生产中的应用研究[J].中国乳业,2014,153:45-48.
[8] 侯建建,娜日苏,罗海玲,等.切碎长度对不同牧草青贮饲料发酵品质的影响[J].中国奶牛,2016,6:10-14.
[9] 内田仙二. 青贮的生化学[M].北海道:日本酪农出版社,1999.
[10] 郭天龙. 凋萎及不同添加剂对甜菜茎叶青贮品质的影响[D].呼和浩特:内蒙古农业大学,2009.
[11] 原现军,王奇,李志华,等.添加糖蜜对青稞秸秆和多年生黑麦草混合青贮发酵品质及营养价值的影响[J].草业学报,2013,22(3):116-123.
[12] 米浩,孙洪新,刘月,等.羊常用饲草营养价值比较分析[J].中国饲料,2019(7):85-88.
[13] 刘婷婷,张振威,岳春旺,等.添加糖蜜和青贮添加剂对“张杂谷”全株青贮发酵品质的影响[J].中国畜牧兽医,2017,44(5):1382-1387.
[14] 王超,张永虎,杨飞雁,等.添加糖蜜和植物乳杆菌对谷草黄贮发酵品质的影响[J].畜牧与饲料科学,2021,42(3):28-31.
[15] MCDONALD P, HENDERSON A R.Determination of water-soluble carbohydrates in grass[J].Journal of the Science of Food and Agriculture,1964,15(6):395-398.
[16] 薛艳林,孙林,殷国梅,等.生物添加剂和填装密度对菊芋青贮饲料品质的影响[J].畜牧与饲料科学,2017,38(1):39-43.
[17] 王彩莲,潘发明,宋淑珍,等.中性洗涤纤维在反刍动物生产中的应用综述[J].甘肃农业科技,2017(11):72-74.
[18] 汪春,车刚,李玉清.干燥过程对紫花苜蓿粗蛋白含量影响规律的试验研究[J].农业工程学报,2006,22(9):225-228.
[19] 李茂,字学娟,张英,等.凋萎和添加剂对王草青贮品质和营养价值的影响[J].动物营养学报,2014,26(12):3757-3764.
[20] 庄益芬,安宅一夫,张文昌.生物添加剂和含水率对紫花苜蓿和猫尾草青贮发酵品质的影响[J].畜牧兽医学报,2007,38(12):1394-1400.
[21] 许冬梅,张萍,柯文灿,等.青贮微生物及其对青贮饲料发酵品质影响的研究进展[J].草地学报,2017,25(3):460-465.
[22] KIM J G, CHUANG E S, SEO S, et al.Effects of maturity at harvest and wilting days on quality of round baled rye silage[J].Asian-Australasian Journal of Animal Science,2001,14(9):1233-1237.
[23] MANYAWU G J, SIBANDA S, MUTISI C, et al.The effect of pre-wilting and incorporation of maize meal on the fermentation of bana grass silage[J].Asian-Australasian Journal of Animal Science,2003,16(6):843-851.
[24] SAUTER E A, HINMAN D D,PARKINSON J F.The lactic acid and volatile fatty acid content and in vitro organic matter digestibility of silages made from potato processing residues and barley straw[J].Journal of Animal Science,1985,60(5):1087-1094.
[25] 孔凡德. 高水分黑麦草添加吸收剂或凋萎青贮对青贮料发酵品质和营养价值的影响[D].杭州:浙江大学,2002.
[26] 刘辉,卜登攀,吕中旺,等.凋萎和不同添加剂对紫花苜蓿青贮品质的影响[J].草业学报,2015,24(5):126-133.
[27] 李君临,张新全,玉柱,等.含水量和乳酸菌添加剂对多花黑麦草青贮品质的影响[J].草业学报,2014,23(6):342-348.
[28] 赵苗苗,玉柱.添加乳酸菌及纤维素酶对象草青贮品质的改善效果[J].草地学报,2015,23(1):205-210.
[29] 王超. 食品副産物を多用した発酵混合飼料の微生物フローラに関する研究[D].岡山:岡山大学,2011.
[30] 司华哲,刘晗璐,男伟肖,等.不同发酵类型乳酸菌对低水分粳稻秸秆青贮发酵品质及有氧稳定性的影响[J].草地学报,2017,25(6):1294-1299.
[31] 关皓,郭旭生,干友民,等.添加剂对不同含水量多花黑麦草青贮发酵品质及有氧稳定性的影响[J].草地学报,2016,24(3):669-675.