Data/hora: 17/06/2024 12:37:32

Biblioteca(s): 	Embrapa Pantanal.	
Data corrente: 	18/04/1996	
Data da última atualização: 	18/04/1996	
Autoria: 	SMITH, W. D.; ANGUS, K. W.	
Título: 	Haemonchus contortus: attempts to immunise lambs with irradiated larvae.	
Ano de publicação: 	1980	
Fonte/Imprenta: 	Research in Veterinary Science, v.29, n.1, p.45-50, 1980.	
Idioma: 	Inglês	
Conteúdo: 	Two doses of irradiated Haemonchus contortus larvae stimulated firm resistance to chal- lenge in adult worm-free sheep but not in two-month-old lambs. Parenteral administration of larval antigens in adjuvant together with the two doses of irradiated larvae did not reduce the susceptibility of the lambs. However four doses of the attenuated larvae stimulated three of six lambs to resist the challenge. Similar concentration of serum IgC and mucosal IgA and IgC antibodies were detected in the sheep which had been vaccinated with irra- diated larvae only, regardless of their immune status. The lambs which had been injected with worm antigens had much higher levels of circulating and mucosal IgC antibodies, but mucosal IgA concentrations were similar to those in the other immunised groups. Histolo- gical examination of the abomasal mucosa did not reveal any differences between resis- tant and susceptible vaccinates.  	
Palavras-Chave: 	Lamb'Parasite; Parasita.	
Thesagro: 	Haemonchus Contortus; Imunização; Larva; Ovelha.	
Thesaurus Nal: 	immunization; larvae.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Pantanal (CPAP)	
Exemplares: 	CPAP - (31575-1) - ADD - SP - -- - SP2194 -  - 2194 - DIS