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- W2381649908 abstract "【Objective】The purpose of this experiment is to study the rumen fermentation characteristics of the combined effects of alfalfa silage and corn silage. 【Method】Alfalfa silage and corn silage were 0∶ 100(AS0),20∶ 80(AS20),40∶ 60(AS40),60∶ 40(AS60),80∶ 20(AS80),100∶ 0(AS100) six proportional combination,through in vitro gas production method for 72 h culture,the effects of different combinations of rumen pH value of liquid fermentation,the concentration of ammonia nitrogen(NH3-N),the degradation rate,gas production and volatile fatty acids(VFA) production were researched.【Result】The results showed that the end of the 72 h fermentation,each test group in vitro degradation of pH values were between 7. 17 to7. 58,AS20 was significantly lower than AS0 and extremely lower than the other test groups(P 0. 01); the AS80 NH3-H value was extremely higher than AS0,AS20(P 0. 01),significantly higher than the AS40,AS60 and AS100(P 0. 05); between the in vitro degradation rate AS80 was the highest,and the difference between AS20,AS40,AS60 and AS100 was not significant(P 0. 05); vitro gas production increased with the increase in the proportion of alfalfa silage,which AS100 and AS80 were higher; AS60,AS80 acetic acid,propionic acid,butyric acid and total volatile fatty acids were significantly higher than AS0(P 0. 01);Among the acetic acid/propionic acid and acetic acid/total volatile fatty acids,AS20 was the lowest(P 0. 01),and the difference between the other groups was not significant(P 0. 05). 【Conclusion】It is concluded that the different proportions of alfalfa silage and corn silage combination can improve the efficiency of utilization of roughage,among which AS80 group proportion was the best." @default.
- W2381649908 created "2016-06-24" @default.
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- W2381649908 date "2013-01-01" @default.
- W2381649908 modified "2023-09-26" @default.
- W2381649908 title "Rumen Rermentation Characteristics of Vitro Gas Production of Alfalfa Silage and Corn Silage Combination Effect" @default.
- W2381649908 hasPublicationYear "2013" @default.
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