Data/hora: 09/06/2024 08:23:50

Biblioteca(s): 	Embrapa Suínos e Aves.	
Data corrente: 	25/11/2021	
Data da última atualização: 	25/11/2021	
Autoria: 	SILVA, M. C. da; COSTA, I. C.; NAKAZATO, G.; PINHEIRO, J. W.; LEDUR, M. C.; LOYOLA, W.; VENANCIO, E. J.	
Afiliação: 	MIRIELE CAROLINE DA SILVA, UEL; IVETE CONCHON COSTA, UEL; GERSON NAKAZATO, UEL; JOÃO WAINE PINHEIRO, UEL; MONICA CORREA LEDUR, CNPSA; WAGNER LOYOLA, CNPSA; EMERSON JOSÉ VENANCIO, UEL.	
Título: 	Innate immunity in chicken lines developed by Embrapa Suínos e Aves: antimicrobial activity of macrophages and serum.	
Ano de publicação: 	2021	
Fonte/Imprenta: 	Revista Brasileira de Zootecnia, v. 50, n. e20200229, 2021.	
DOI: 	https://doi.org/10.37496/rbz5020200229	
Idioma: 	Inglês	
Conteúdo: 	Abstract: The objective of this study was to compare the antimicrobial activity of macrophages and serum in laying hen (MM, CC, and CCc) and broiler chicken lineages (TT and LL). Macrophages were evaluated for phagocytic and antimicrobial activity. Microbicidal serum activity was evaluated by the resistance test for serum and the agar test. The results showed that phagocytic activity was higher in males of the MM strain, with 13% of macrophages presenting phagocytosis, while the other lineages studied, and even female MM, presented a rate of 6% of phagocytic cells. However, antimicrobial activity in macrophages from males of CCc lineage and females of TT lineage were higher, eliminating more than 30% of the Salmonella enterica inoculum, while in the other strains, the results were similar, with inoculum reduction below 30%. In the serum resistance assay, female laying lines presented higher antibacterial activity than female broiler lines. In the trials to evaluate the microbicide activity of the serum, females of both broiler and laying lineages presented higher performance when compared with males of the same lineage. Females of laying hen lines (MM and CC) present a greater antibacterium activity than males. These results can contribute to a better understanding of the immune response in broiler chicken and laying hen lineages, to aid development of lineages of birds more resistant to pathogens	
Palavras-Chave: 	Complement system; Fowls; Genetic selection; Imunidade natural; Natural immunity.	
Thesagro: 	Ave Domestica; Frango de Corte; Galinha Para Postura; Genética Animal; Poedeira Comercial; Seleção Genética.	
Thesaurus Nal: 	Broiler chickens; Laying hens.	
Categoria do assunto: 	--	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/228109/1/final9220.pdf	
Registro original: 	Embrapa Suínos e Aves (CNPSA)	
Exemplares: 	CNPSA - (22237-1) - UPC - AP - DD -  -  -  - DIS