Evaluation Effects of Feed Compound Probiotics to Degrade Crude Fiber in Corn Husk-Rice Bran Mixed Raw Materials

  • GUO Mengmeng ,
  • CAO Xi ,
  • WU Yi ,
  • WANG Zhiwei ,
  • YE Bingkui ,
  • WANG Deguang ,
  • WU Linwei ,
  • ZHANG Ke ,
  • YANG Yuxin ,
  • CHEN Yulin
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  • 1. College of Animal Science and Technology, Northwest A & F University, Yangling 712100, China;
    2. Shaanxi Yangling Firstfeed Co., Ltd., Yangling 712100, China

Received date: 2019-04-08

  Online published: 2019-10-17

Abstract

This experiment was conducted to study the effects of feed compound probiotics to degrade crude fiber in corn husk-rice bran mixed raw materials. The experiment used corn husk-rice bran mixed raw materials (corn husk 67.0%, rice bran 17.4%, cottonseed meal 15.0%, brown sugar 0.3% and urea 0.3%) as the fermentation raw material, based on the previous study results, the inoculation proportions of Lactobacillus, Bacillus, yeast and Aspergillus niger were 5%, 1%, 5%, 3% (3% group) and 5%, 1%, 5%, 5% (5% group), respectively, and used the dynamic sampling experiment to analyze the change curves of nutrient index during 9 days fermentation. The results showed that at fermentation day 9, the neutral detergent fiber contents of 3% group and 5% group were decreased by 30.84% and 29.04% (P<0.01), the acid detergent fiber contents were decreased by 24.25% and 30.53% (P<0.01), the crude protein contents were increased by 30.43% and 37.76% (P<0.01), and the reducing sugar contents were increased by151.85% and 170.37% (P<0.01). The neutral detergent fiber content at day 3 of 3% group was significantly higher than that of 5% group (P<0.01), and the neutral detergent fiber content at day 5 was significantly lower than that of 5% group (P<0.05); the reducing sugar content at day 9 of 3% group was significantly lower than that of 5% group (P<0.05). Dynamic sampling data analysis showed that corn husk-rice bran mixed raw materials had the best fermentation effect when the inoculation proportions of Lactobacillus, Bacillus, Yeast and Aspergillus niger in the feed compound probiotics were 5%, 1%, 5% and 5%, when fermentation time was 5 to 7 days, the loss rate of dry matter could be effective reduced. In conclusion, the corn husk-rice bran mixed raw materials fermented by feed compound probiotics can reduce the contents of neutral detergent fiber and acid detergent fiber in corn husk-rice bran mixed raw materials, improve the contents of crude protein and reducing sugar, and improve the feed quality.

Cite this article

GUO Mengmeng , CAO Xi , WU Yi , WANG Zhiwei , YE Bingkui , WANG Deguang , WU Linwei , ZHANG Ke , YANG Yuxin , CHEN Yulin . Evaluation Effects of Feed Compound Probiotics to Degrade Crude Fiber in Corn Husk-Rice Bran Mixed Raw Materials[J]. Chinese Journal of Animal Nutrition, 2019 , 31(10) : 4893 -4900 . DOI: 10.3969/j.issn.1006-267x.2019.10.056

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