Chinese Herbal Extracts Mitigate Ammonia Generation in the Cecum of Laying Hens: An In Vitro Study
Author:
Li Miao1, Feng Kunxian1, Chen Jingyi1, Liu Tianxu1ORCID, Wu Yinbao123, Mi Jiandui123, Wang Yan123
Affiliation:
1. Heyuan Branch, Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou 510642, China 2. Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510642, China 3. National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
Abstract
The objectives of the study were to screen one or several Chinese herbal extracts with good ammonia emission reduction effects using an in vitro gas production study. The study consisted of a control (without Chinese herbal extract), and 11 experimental groups with added cinnamon extract (CE), Osmanthus extract (OE), tangerine peel extract (TPE), dandelion extract (DE), Coptis chinensis extract (CCE), honeysuckle extract (HE), Pulsatilla root extract (PRE), yucca extract (YE), licorice extract (LE), Ginkgo biloba extract (GBE), or astragalus extract (AE). The results showed that HE, PRE, YE, LE, GBE, and AE significantly reduced ammonia production (p ≤ 0.05). The most significant ammonia inhibition was achieved via AE, resulting in a 26.76% reduction. In all treatments, Chinese herbal extracts had no significant effect on pH, conductivity, or uric acid, urea, and nitrate-nitrogen concentrations (p > 0.05). However, AE significantly reduced urease activity and the relative activity of uricase (p ≤ 0.05). AE significantly increased the relative abundance of Bacteroides and decreased the relative abundance of Clostridium, Desulfovibrio, and Prevotell (p ≤ 0.05). Astragalus extract inhibited ammonia emission from laying hens by changing the gut microbial community structure, reducing the relative abundance of ammonia-producing bacteria, and reducing microorganisms’ uricase and urease activities.
Funder
National Natural Science Foundation of China The Construction Project of Modern Agricultural Science and Technology Innovation Alliance in Guangdong Province The Guangdong agricultural research projects The Heyuan Branch, Guangdong Laboratory for Lingnan Modern Agriculture Project earmarked fund for Modern Agroindustry Technology Research System
Subject
General Veterinary,Animal Science and Zoology
Reference50 articles.
1. Ammonia Inhalation Impaired Immune Function and Mitochondrial Integrity in the Broilers Bursa of Fabricius: Implication of Oxidative Stress and Apoptosis;Shah;Ecotoxicol. Environ. Saf.,2020 2. Li, D., Tong, Q., Shi, Z., Zheng, W., Wang, Y., Li, B., and Yan, G. (2020). Effects of Cold Stress and Ammonia Concentration on Productive Performance and Egg Quality Traits of Laying Hens. Animals, 10. 3. Zhao, X., Wang, G., Han, H., Zhou, Y., Feng, J., and Zhang, M. (2023). Effects of Atmospheric Ammonia on Skeletal Muscle Growth in Broilers. Animals, 13. 4. Ammonia Emissions in Poultry Houses and Microbial Nitrification as a Promising Reduction Strategy;Swelum;Sci. Total Environ.,2021 5. The Alterations of Tracheal Microbiota and Inflammation Caused by Different Levels of Ammonia Exposure in Broiler Chickens;Zhou;Poult. Sci.,2021
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