A survey was conducted from May to June, 1989 in Londrina, Sabáudia and Guaraci, cities in the North of Paraná State, Brazil, Faecal samples from 23 poultry houses of flocks belonging to the HUBBARD lineage were examined after centrifugal floating in saturated solution of sacarose. A solution of Bichromate Potassium 2,5% was used to identify the species, of oocysts from Eimeria spp causing esporulation. The sam...
Three hundred and forty dog skin scrapings were examined in the Parasitology Laboratory of the veterinary medicine department at the University, of Londrina Paraná, to study the epidemiology of Demodex canist The specimens were obtained from the University Veterinary Hospital and other private clinics in the region from January 1980 to December 1983. Demodex canis was present in 96 scrapings (28,26%) in variabl...
Genotypic, phenotypic and environmental correlations between parameters were determined in three Hereford herds in the Bagé and Herval do Sul counties, state of Rio Grande do SuL One hundred and eight three (93 males and 90 females) were studied for the following characteristics: weight at weaning (WW; average daily weight gain from birth til weaning (ADWW); weight after weaning (WA Wj and average weight gain a...