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Abstract

A fluctuation in the prevalence of natural fasciolosis in a dairy cattle herd of 44 cows (crossbred Holstein × zebu) and their calves, from the municipality of Itajubá, Minas Gerais, Brazil, within 12 months was observed. The cows eliminated F. hepatica eggs throughout the year, particularly during ...

Author(s)
Faria, R. N.; Cury, M. C.; Lima, W. S.
Publisher
École Nationale Vétérinaire de Toulouse, Toulouse, France
Citation
Revue de Médecine Vétérinaire, 2005, 156, 2, pp 85-86
Abstract

The seasonal variation of Boophilus microplus in the 'Região Metalúrgica' region of Minas Gerais state was studied using 26 Bos taurus (Holstein)×Bos indicus (Gir) calves, of which 16 animals were 3/4 Holstein×1/4 Gir and 10 were 3/4 Gir×1/4 Holstein. Monthly tick counts were made between March...

Author(s)
Lima, W. S.; Ribeiro, M. F.; Guimaraes, M. P.
Publisher
Kluwer Academic Publishers, Dordrecht, Netherlands
Citation
Tropical Animal Health and Production, 2000, 32, 6, pp 375-380
Abstract

A field trial was carried out during a summer-fall period on a commercial beef cattle farm in Minas Gerais State, located in the Southeast of Brazil. In order to evaluate the prophylactic effect and the curative efficacy of fipronil in a 1% solution, 200 Zebu crossbred bulls, with ages varying from ...

Author(s)
Lima, W. S.; Malacco, M. A. F.; Bordin, E. L.; Oliveira, E. L.
Publisher
Elsevier Science B.V., Amsterdam, Netherlands
Citation
Veterinary Parasitology, 2004, 125, 3/4, pp 373-377
Abstract

Following epidemiological studies of gastrointestinal helminthoses in dairy cattle in Florestal County, Minas Gerais, 80 Swiss and crossbred Zebu×Holstein calves, 8-10-months old, were selected to test the efficacy of 3 treatment protocols using ivermectin for helminth control. The calves were...

Author(s)
Guimaraes, M. P.; Ribeiro, M. F. B.; Facuri-Filho, E. J.; Lima, W. S.
Citation
Veterinary Research Communications, 2000, 24, 1, pp 31-38
Abstract

Tracer calves were used from February 1993 to February 1995 to assess the seasonality of infections of gastrointestinal parasites in beef cattle extensively raised at a farm in the State of Minas Gerais, Brazil. Tracer calves acquired infections during all months of the year, but highest worm...

Author(s)
Lima, W. S.
Citation
Veterinary Parasitology, 1998, 74, 2/4, pp 203-214
Abstract

Seasonal variation in gastrointestinal and pulmonary nematode infections in cattle on a dairy farm in Minas Gerais State, Brazil, was studied between January 1993 and March 1995 by the monthly examination of faecal samples from calves for helminth ova. Cooperia, Haemonchus, Trichuris,...

Author(s)
Lima, W. S.; Fakuri, E.; Guimarães, M. P.; Malacco, M. A.
Citation
Revista Brasileira de Parasitologia Veterinária, 1997, 6, 2, pp 97-103
Abstract

Three calves, that were experimentally infected with Schistosoma mansoni and passing viable eggs in their faeces, as well as 5 normal control calves from a schistosomiasis non-endemic area were maintained in an 850 metre2 enclosure in Minas Gerais, Brazil. A tank of water in this enclosure received ...

Author(s)
Modena, C. M.; Coelho, P. M. Z.; Barbosa, F. S.; Lima, W. S.
Citation
Revista do Instituto de Medicina Tropical de São Paulo, 1993, 35, 1, pp 11-16
Abstract

Six calves from dairy farms in the south of the State of Minas Gerais, Brazil, aged 6 to 15 months were necropsied each month over a period of 2 years. Cooperia species were identified, counted, and the numbers related to the calves' age. The worm burdens due to the 3 species of Cooperia were...

Author(s)
Guimaraes, M. P.; Costa, H. M. A.; Lima, W. S.
Citation
Journal of Helminthology, 1990, 64, 4, pp 319-322
Abstract

Three groups of 13 Zebu Nelore cows in their 1st, 2nd and 3rd pregnancies, grazing in the same paddock were used. Faecal egg counts were recorded from the 20th week of pregnancy to the 28th week after parturition (time of weaning). The egg counts increased around the time of parturition; there were ...

Author(s)
Lima, W. S.; Guimarães, M. P.
Citation
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 1992, 44, 5, pp 387-396

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