Parasitismo natural de bufalinos em Botucatu, SP, Brasil: III. Dinâmica do parasitismo gastro-intestinal em vacas e suas crias / Natural parasitsm of buffalo cows in Botucatu, SP, Brazil: III. Dynamics of gastro-intestinal parasitism in cows and calves
Mem. Inst. Oswaldo Cruz
;
87(supl.1): 37-41, 1992. ilus
Artículo
en Portugués
| LILACS
| ID: lil-116384
RESUMO
Natural parasitism of buffalo cows in Botucatu, SP, Brazil - III. Dynamics of gastro-intestinal parasitism in cows and calves - Gastro-intestinal parasitism of 24 buffalo cows before parturition, and post-parturition, their infection and that of their respective calves during the following 30 weeks were studied. Willis, Hoffmann and whenever possible, the modified Gordon & Whitlock techniques were used for fecal examinations. Toxocara vitulorum eggs were the earliest forms encountered in calves feces, as follows during the 1st week after birth, 58.33% of the calves were positive, and in the 4th week, 100% of these animals were positive. Eggs of Strongyloides sp were in the 1st week after birth in two of the calves and in the 5th week, all for them were positive. The next parasites to appear were the Coccidia of which oocysts were detected in the feces of two calves in the 2nd week after birth, and 58.33% of the calves were positive for these in the 3rd week, and in the 6th week, all calves shed oocysts in their feces. On the other hand, eggs of Strongylids were the last forms to appear in calves feces. However, despite their sporadic appearance in the feces, eggs of these parasites were observed continuously from the 11th week onwards, and at this point, the percentage of positive samples began to increase to reach its peak. Relatively to adult animals, eggs of T. vitulorum were observed in the feces of 11 cows, one or twice at most; eggs of Strongyloides sp were seen only once in the feces of four buffalo cows and eggs of Strongylids in 21 out of 24 cows. Oocysts of Coccidia were observed in 16 cows. Mechanisms of infestation of calves with these parasites are discussed
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Strongyloides
/
Toxocara
/
Búfalos
/
Coccidios
Límite:
Animales
País/Región como asunto:
America del Sur
/
Brasil
Idioma:
Portugués
Revista:
Mem. Inst. Oswaldo Cruz
Asunto de la revista:
Medicina Tropical
/
Parasitología
Año:
1992
Tipo del documento:
Artículo
Similares
MEDLINE
...
LILACS
LIS