Affiliation:
1. College of Food Engineering, Harbin University of Commerce, Harbin 150076, China
2. Key Laboratory of Corn Deep Processing Theory and Technology of Heilongjiang Province, College of Food and Bioengineering, Qiqihar University, Qiqihar 161006, China
3. College of Food, Heilongjiang Bayi Agricultural University, Daqing 163319, China
Abstract
China faces a persistent deficiency in feed protein resources. Enhancing the utilization efficiency of indigenous feed protein resources emerges as a viable strategy to alleviate the current deficit in protein feed supply. Corn gluten meal (CGM), characterized by a high proportion of crude protein and glutamine, is predominantly employed in animal feed. Nonetheless, the water-insolubility of CGM protein hampers its protein bioavailability when utilized as feed material. The aim of this study was to augment protein bioavailability, liberate glutamine peptides from CGM, and produce glutamine-enriched CGM fermented feed. We executed a co-fermentation protocol using Bacillus subtilis A5, Lactobacillus 02002, and acid protease to generate the CGM fermented feed. Subsequent in vivo experiments with broilers were conducted to assess the efficacy of the fermented product. The findings revealed that the soluble protein, glutamine, small peptides, and lactic acid contents in the fermented feed increased by 69.1%, 700%, 47.6%, and 125.9%, respectively. Incorporating 15% and 30% CGM fermented feed into the diet markedly enhanced the growth performance and intestinal health of broilers, positively modulated the cecal microbiota structure, and augmented the population of beneficial bacteria, specifically Lactobacillus. These results furnish both experimental and theoretical foundations for deploying CGM fermented feed as an alternative protein feed resource.
Funder
National Key Research and Development Plan of China
Double First-Class Project for Collaborative Innovation Achievements in Disciplines Construction in Heilongjiang Province
Talent Foundation of the Central Government Supporting Local Universities
Heilongjiang Province Key Research and Development Projects
Theory and Technology of Corn Deep Processing in Heilongjiang Province
Subject
Plant Science,Health Professions (miscellaneous),Health (social science),Microbiology,Food Science