Low-dose thiram exposure elicits dysregulation of the gut microbial ecology in broiler chickens

Autor: Lei Wang, Fazul Nabi, Weixue Yi, Dongjing Wang, Ying Zhu, Xiong Jiang
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Ecotoxicology and Environmental Safety, Vol 270, Iss , Pp 115879- (2024)
Druh dokumentu: article
ISSN: 0147-6513
DOI: 10.1016/j.ecoenv.2023.115879
Popis: Thiram, a typical fungicide pesticide, is widely used in agricultural production. The presence of thiram residues is not only due to over-utilization, but is also primarily attributed to long-term accumulation. However, there is a paucity of information regarding the impact of prolonged utilization of thiram at low doses on the gut microbiota, particularly with respect to gut fungi. Our objective is to explore the effect of thiram on broilers from the perspective of gut microbiota, which includes both bacteria and fungi. We developed a long-term low-dose thiram model to simulate thiram residue and employed 16 S rRNA and ITS gene sequencing to investigate the diversity and profile of gut microbiota between group CC (normal diet) and TC (normal diet supplemented with 5 mg/kg thiram). The results revealed that low doses of thiram had a detrimental effect on broiler’s growth performance, resulting in an approximate reduction of 669.33 g in their final body weight at day 45. Our findings indicated that low-dose thiram had a negative impact on the gut bacterial composition, leading to a notable reduction in the abundance of Merdibacter, Paenibacillus, Macrococcus, Fournierella, and Anaeroplasma (p
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