Response of Corriedale and Crioula Lanada sheep to artificial primary infection with Haemonchus contortus


Autoria(s): Bricarello, P. A.; Gennari, S. M.; Oliveira-Sequeira, TCG; Vaz, CMSL; de Goncalves, I. G.; Echevarria, FAM
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

01/08/2002

Resumo

Clinical, parasitological and biochemical parameters were evaluated in Corriedale and Crioula Lanada sheep after a single experimental infection with Haemonchus contortus. Ten 4-month-old worm-free lambs, of each breed, were infected with 200 L-3 H. contortus per kg live weight,and four uninfected animals of each breed were used as controls. Every week, the animals were weighed and blood and faecal samples were collected for measurement of packed cell volume (PCV), total serum protein (TSP) and albumin (ALB), and the number of eggs per gram of faeces (EPG), respectively. Twelve weeks after infection, the animals were slaughtered. The worm burden was determined and samples of the abomasal mucosa were processed for determination of the number of eosinophils, mast cells and globule leukocytes. No significant differences in PCV, TSP, ALB, parasite burden or the cell populations of the abomasal mucosa were observed between breeds, but Crioula lambs had a lower EPG count. The comparison of the infected groups with their respective controls revealed significant alterations in PCV, TSP and ALB in the Corriedale lambs and in PCV, TSP, ALB and the density of eosinophils and mast cells in the Crioula lambs.

Formato

447-457

Identificador

http://dx.doi.org/10.1023/A:1020538424876

Veterinary Research Communications. Dordrecht: Kluwer Academic Publ, v. 26, n. 6, p. 447-457, 2002.

0165-7380

http://hdl.handle.net/11449/33358

10.1023/A:1020538424876

WOS:000178029500005

Idioma(s)

eng

Publicador

Kluwer Academic Publ

Relação

Veterinary Research Communications

Direitos

closedAccess

Palavras-Chave #breed #burden #Corriedale #Crioula Lanada #Haemonchus contortus #helminthology #pathology #sheep
Tipo

info:eu-repo/semantics/article