期刊文献

Effect of dietary corn gluten inclusion on rumen fermentation, microbiota and methane emissions in goats 收藏

日粮玉米面筋含量对山羊瘤胃发酵，微生物群和甲烷排放的影响
原文求助 发布源
作者
TsegayTeklebrhan[a][b][c][1];RongWang[a][1];MinWang[a];Jiang NanWen[a];Li WeiTan[d];Xiu MinZhang[a][b];Zhi YuanMa[a][b];Zhi LiangTan[a]
作者单位
[a]CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan, 410125, PR China[b]University of Chinese Academy of Sciences, Beijing, 100049, PR China[c]School of Animal and Range Sciences, Haramaya University, Dire-Dawa, P. O. Box. 138, Ethiopia[d]Chinese Academy of Agricultural Engineering, Beijing, 100125, PR China
关键词
Rumen fermentation;Methane emission;sulfur;Dissolved hydrogen;Microbiota;
关键词译文
瘤胃发酵;甲烷排放;硫;溶解氢;菌群;
发布日期
1 January 2020
DOI
10.1016/j.anifeedsci.2019.114314
来源信息
Animal Feed Science and Technology ISSN：0377-8401, 2020年, 259卷
摘要
The study was to evaluate replacing corn meal (CM) by corn gluten (CG) on intake, digestibility, ruminal fermentation, CH4 emissions and microbial abundance in goats. The experiment was performed using randomized block design with 2 dietary treatments (CM and CG with 400 g/kg DM each). Replacing CM with CG increased NDF and CP intake and decreased starch intake. Goats fed CG diet had lower ruminal dissolved hydrogen (dH2) (-43%, P = 0.009) and dissolved methane (dCH4) (-30%, P = 0.001) concentrations than those fed with CM diet. An interaction between treatment and time (P =  0.03) was observed for dH2S with an increase (P < 0.001) in dH2S concentration (CG versus CM, +63%, P <  0.001) happened at 2.5 h after morning feeding. Goats fed with CG diet had lower (P = 0.004) butyrate molar percentage, and greater (P < 0.01) ammonia concentration and molar percentage of valerate and isobutyrate than those fed with the CM diet. Goats fed with CG diet decreased (P = 0.01) CH4 emission expressed as g/d and g/kg DMI. Goats fed with CG diet decreased 16S rRNA gene copies of R. amylophilus (P = 0.003), and increased 18S rRNA gene copies of fungi (P = 0.05) and 16S rRNA gene copies of F. succinogenes (P = 0.03). In summary, replacing CM with CG decreases starch and increases fiber intake, and growth of fibrolytic fungi and F. succinogenes, and inhibits growth of R. amylophilus. An increase in sulfur content after replacing CM with CG provides additional H2 sink, which causes an increase in ruminal dH2S and reduction in CH4 emissions. Corn gluten could be an alternative feed to decrease the enteric CH4 emission in ruminant production.
摘要译文
该研究旨在评估以玉米蛋白（CG）代替玉米粉（CM）对山羊的摄入，消化率，瘤胃发酵，CH 4排放和微生物丰度的影响。实验采用随机分组设计，采用两种饮食疗法（CM和CG分别为400μg/ kg DM）。用CG代替CM可增加NDF和CP的摄入量，并减少淀粉的摄入量。饲喂CG日粮的山羊瘤胃中的溶解氢（dH 2）（-43％，P = 0.009）和溶解甲烷（dCH 4）（-30％，P = 0.001）的浓度低于饲喂CM日粮的山羊。 dH 2 S的处理与时间之间存在交互作用（P = 0.03），早晨喂食后2.5 h dH 2 S浓度增加（P <0.001）（CG vs CM，+ 63％，P <0.001）。 。饲喂CG日粮的山羊比饲喂CM日粮的山羊的丁酸酯摩尔百分数低（P = 0.004），而戊酸酯和异丁酸酯的氨浓度和摩尔百分数更高（P <0.01）。饲喂CG日粮的山羊减少了（P = 0.01）以g / d和g / kg DMI表示的CH 4排放量。饲喂CG日粮的山羊嗜乳杆菌的16S rRNA基因拷贝数减少（P = 0.003），真菌的18S rRNA基因拷贝数增加（P = 0.05）和琥珀酸杆菌的16S rRNA基因拷贝数增加（P = 0.03）。总之，用CG代替CM可以减少淀粉并增加纤维摄入量，并增加溶纤真菌和琥珀酸短螺旋杆菌的生长，并抑制嗜酸乳杆菌的生长。用CG代替CM后硫含量的增加提供了额外的H 2吸收，这导致瘤胃dH 2 S的增加和CH 4排放的减少。玉米面筋可能是减少反刍动物生产中肠CH 4排放的替代饲料。
TsegayTeklebrhan[a][b][c][1];RongWang[a][1];MinWang[a];Jiang NanWen[a];Li WeiTan[d];Xiu MinZhang[a][b];Zhi YuanMa[a][b];Zhi LiangTan[a]. Effect of dietary corn gluten inclusion on rumen fermentation, microbiota and methane emissions in goats[J]. Animal Feed Science and Technology, 2020,259