RUMINANT AND HERBIVORE NUTRITION AND FEED

Effects of Different Concentrations of Cellulase Agent Treatment on Fermentation Characteristics of Wheat, Highland Barley and Rape Yellow Storages

  • LI Bin ,
  • Danzengquzhen ,
  • Baimayangjin ,
  • MA Jinying ,
  • JIN Tao
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  • Academy of Agricultural and Animal Sciences in Tibet Autonomous, Lhasa 850009, China

Received date: 2021-02-15

  Online published: 2021-09-18

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Abstract

This experiment was conducted to investigate the effects of different concentrations of cellulase agent treatment on fermentation characteristics of wheat, highland barley and rape yellow storages. The wheat, highland barley and rape yellow storages were divided into 3 groups, which were the control group, adding 1×1010 CFU/kg cellulolytic bacteria group (group Ⅰ) and adding 2×1010 CFU/kg cellulolytic bacteria group (group Ⅱ), there were 9 groups. The results showed as follows:1) the sensory score of wheat and highland barley yellow storages of group Ⅰ was significantly higher than that of the control group (P<0.05). The contents of lactic acid, acetic acid and propionic acid in wheat and highland barley yellow storages of groups Ⅰ and Ⅱ were significantly higher than that of the control group (P<0.05), and the contents of neutral detergent fiber (NDF) and acid detergent fiber (ADF) were significantly lower than that of the control group (P<0.05). The content of crude protein in wheat, highland barley and rape yellow storages was significantly higher than that of the control group (P<0.05). 2) The dry matter degradation rate (DMD) of wheat and highland barley yellow storages of groups Ⅰ and Ⅱ was significantly higher than that of the control group (P<0.05). The neutral detergent fiber degradation rate (NDFD) of wheat yellow storage of groups Ⅰ and Ⅱ was significantly higher than that of the control group (P<0.05), and the NDFD of highland barley yellow storage of group Ⅰ was significantly higher than that of the control group and group Ⅱ (P<0.05). 3) The content of total volatile fatty acids (TVFA) in wheat and highland barley yellow storages of groups Ⅰ and Ⅱ was significantly higher than that of the control group (P<0.05). The content of butyric acid in wheat yellow storage of group Ⅱ was significantly lower than that of the control group and group Ⅰ (P<0.05). 4) The 48 h total gas production of wheat yellow storage of groups Ⅰ and Ⅱ was significantly higher than that of the control group (P<0.05). In conclusion, adding cellulolytic bacteria can increase the DMD, NDFD and gas production of wheat, highland barley and rape yellow storages, and promote the digestion and degradation of feed, promote the in vitro fermentation of yellow storage, and the best addition amount is 2×1010 CFU/kg.

Cite this article

LI Bin , Danzengquzhen , Baimayangjin , MA Jinying , JIN Tao . Effects of Different Concentrations of Cellulase Agent Treatment on Fermentation Characteristics of Wheat, Highland Barley and Rape Yellow Storages[J]. Chinese Journal of Animal Nutrition, 2021 , 33(9) : 5016 -5024 . DOI: 10.3969/j.issn.1006-267x.2021.09.022

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