Digestion-promoting compound microbial agent for biological feed and its application

Abstract

The invention provides a digestion-promoting compound bacterial agent for biological feed. The digestion-promoting compound bacterial agent is composed of the following components in terms of dry weight and parts by weight: 40-80 parts by weight of the microbial microbial agent, and 15-37 weight of the lactobacillus agent. Parts, 5 to 25 parts of Bacillus subtilis bacteria are mixed and uniformlymixed to obtain a composite microbial agent. The fiber-producing microorganism is Clostridium thermocellum, Clostridium solani or Pseudomonas solani. The present invention also provides a method of preparing a lignocellulosic-based biological feed using the composite microbial agent. The preparation of the lignocellulosic-based biological feed by using the composite microbial agent not only promotes digestion and absorption of food, but also significantly increases the egg production rate, reduces the ratio of feed to meat, and inhibits the growth and reproduction of pathogenic bacteria and reduces the incidence rate. In addition, the incidence of chicken (lowering), egg production rate (increased), broiler feed ratio (improvement) and other effects are significantly better than the basicchicken feed.

Description

technical field [0001] The invention belongs to the technical field of biological feed, and relates to the technology of preparing chicken feed by using lignocellulose, in particular to a digestion-promoting composite bacterial agent for biological feed and the preparation thereof by using the composite bacterial agent to promote digestion, increase egg production rate, and reduce feed consumption. Feed method of meat ratio. Background technique [0002] The key issue in the development of the breeding industry is the health level and production capacity of animals. As one of the most common poultry, chickens have become a steady source of meat and egg food for humans. Therefore, how to accelerate the growth of chicken, improve egg production capacity, and reduce the incidence of disease is a long-term focus in the field of poultry breeding. [0003] Lignocellulosic biomass is the most abundant renewable biomass resource on earth. my country is a large agricultural countr...

AI Technical Summary

Problems solved by technology

However, the above treatment methods still have the following problems: (1) the crude fiber is not fully hydrolyzed, and the problem of the decline in digestion and absorption efficiency has not been fundamentally solved; (2) the treatment cost is high, the economy is poor, and the prospect of practical application in the industry is still poor

For example, researchers used Clostridium thermocellum to achieve efficient hydrolysis of microcrystalline cellulose in their previous work (Zhang, J., S. Liu, R. Li, W. Hong, Y. Xiao, Y. Feng, Q. Cui and Y.-J.Liu(2017). "Efficient whole-cell-catalyzing celluloseaccharification using engineered Clostridiumthermocellum."Biotechnol Biofuels 10(1):124.), but it has not been applied to the hydrolysis of lignocellulosic substrates As well as the development and preparation of lignocellulose-based feed, and the preparation of chicken feed by using cellulosome-producing microorganisms as feed additives, whether it can promote digestion, increase egg production rate, and reduce feed-to-meat ratio still needs to be explored

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