Application of dietary organic acids in laying hens production: a comprehensive review
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The removal of antibiotic growth promoters from poultry diets has driven research into alternative feed additives to optimize production performance in laying hens. Among these alternatives, dietary organic acids (OAs) have gained significant attention due to their antimicrobial properties, ability to modulate intestinal acidity, and role in enhancing nutrient utilization. This review comprehensively examines the effects of OAs supplementation on egg production and quality, blood parameters, intestinal morphology, fecal and intestinal microbiota, and bone health in laying hens. Studies indicate that various OAs supplementation improves egg production and quality. Additionally, OAs contribute to superior eggshell quality by enhancing calcium and protein absorption. The physiological benefits of OAs supplementation include improved intestinal morphology, gut microbiota, and immune and physiological responses. On the other hand, the effectiveness of OAs varies depending on the type of acid, dosage, environmental conditions, and interactions with feed ingredients or additives. This review consolidates current findings to provide practical insights into the application of OAs as a viable alternative to AGPs in commercial laying hen production.
Abstract
The removal of antibiotic growth promoters from poultry diets has driven research into alternative feed additives to optimize production performance in laying hens. Among these alternatives, dietary organic acids (OAs) have gained significant attention due to their antimicrobial properties, ability to modulate intestinal acidity, and role in enhancing nutrient utilization. This review comprehensively examines the effects of OAs supplementation on egg production and quality, blood parameters, intestinal morphology, fecal and intestinal microbiota, and bone health in laying hens. Studies indicate that various OAs supplementation improves egg production and quality. Additionally, OAs contribute to superior eggshell quality by enhancing calcium and protein absorption. The physiological benefits of OAs supplementation include improved intestinal morphology, gut microbiota, and immune and physiological responses. On the other hand, the effectiveness of OAs varies depending on the type of acid, dosage, environmental conditions, and interactions with feed ingredients or additives. This review consolidates current findings to provide practical insights into the application of OAs as a viable alternative to AGPs in commercial laying hen production.