当前位置: 首页 > 文章 > 初始水温与饲料液态发酵及液态转固态后pH值变化规律研究 湖北农业科学 2011,50 (8) 135-138
Position: Home > Articles > Effect of Beginning Water Temperature on pH Variation of Feed Liquid Fermentation and Fermented Solid Feed Hubei Agricultural Sciences 2011,50 (8) 135-138

初始水温与饲料液态发酵及液态转固态后pH值变化规律研究

作  者:
魏金涛;李绍章;刘收;杨学海;严念东;赵娜;张巍;黄少文;蔡映红;吴正杰
单  位:
湖北健丰牧业有限公司;湖北省农业科学院畜牧兽医研究所
关键词:
水温;液态发酵;液态转固态;pH值
摘  要:
试验研究了初始水温对液态发酵饲料pH值变化规律及将液态发酵饲料转为固态之后0 h和继续发酵24 h后的pH值变化规律。研究发现,初始水温对液态发酵饲料pH值变化规律及液态发酵饲料转为固态之后pH值变化规律分别可以利用方程y=-0.179x+7.584和y=-0.142x+8.587估测,均在初始水温17~20℃之间pH值显著下降,并且呈线性相关,而初始水温在20℃以上时发酵对pH值影响不显著(P>0.05)。液态转固态再发酵24h后各个温度段的pH值变化都不显著(P>0.05)。
译  名:
Effect of Beginning Water Temperature on pH Variation of Feed Liquid Fermentation and Fermented Solid Feed
作  者:
WEI Jin-tao1,LI Shao-zhang1,LIU Shou1,YANG Xue-hai1,YAN Nian-dong1,ZHAO Na1,ZHANG Wei1, HUANG Shao-wen1,CAI Ying-hong2,WU Zheng-jie2(1.Animal and Veterinary Science Institute,Hubei Academy of Agriculture Science,Wuhan 430209,China; 2.Hubei Jianfeng Animal Husbandry Co.Ltd.,Huangshi 438204,Hubei,China)
关键词:
water temperature;fermented liquid feed;liquid change into solid;pH
摘  要:
The effect of beginning water temperature on pH variation of feed liquid fermentation and 0 h and 24 h solid fermented feed was studied.The result showed that when the beginning temperature was 17~20 ℃,the pH value decreased obviously and matched linear model.The variation of pH of liquid fermentation feed and solid fermented feed according to beginning water temperature could be estimated by function y=-0.179x+7.584 and y=-0.142x+8.587,respectively.When the beginning temperature was above 20 ℃,its effect on pH was not significant(P>0.05).The pH variation of 24h solid fermented feed at different temperature range wasn't significant(P>0.05).

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