|
|
|
|
|
| Rocha Jr.,JM; Mahecha,GAB; Dornas,RAP; Kuana,SL; Martins,NRS. |
| A study on the occurrence of epididymal lithiasis (EL) in Gallus gallus domesticus of different breeds and from different geographical regions of Brazil was carried out. Forty breeding roosters were collected in the states Santa Catarina, São Paulo, Minas Gerais, Espírito Santo and Goiás, representing two specific pathogen free Leghorn lines (SPF), one commercial Leghorn layer breeder (Hy-Line) line, two commercial broiler breeder lines (Ross and Cobb), and two backyard chicken flocks. In commercial poultry breeders, EL was observed mainly after 55 weeks of age, and lithus resulted in lower fertility caused by inadequate maturation of spermatozoa and testicular atrophy, which evolved to more severe testicular dysfunction at 100 weeks of age. One hundred... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Epididymal lithiasis; Gallus gallus domesticus; Infertility; Rooster; Testicular calculus. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2009000100004 |
| |
|
|
| Kuana,SL; Santos,LR; Rodrigues,LB; Borsoi,A; Moraes,HLS; Salle,CTP; Nascimento,VP. |
| Campylobacter was investigated in cecal droppings, feces, and cloacal swabs of 22 flocks of 3 to 5 week-old broilers. Risk factors and the likelihood of the presence of this agent in these flocks were determined. Management practices, such as cleaning and disinfection, feeding, drinkers, and litter treatments, were assessed. Results were evaluated using Odds Ratio (OR) test, and their significance was tested by Fisher's test (p<0.05). A Campylobacter prevalence of 81.8% was found in the broiler flocks (18/22), and within positive flocks, it varied between 85 and 100%. Campylobacter incidence among sample types was homogenous, being 81.8% in cecal droppings, 80.9% in feces, and 80.4% in cloacal swabs (230). Flocks fed by automatic feeding systems... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broilers; Campylobacter; Cecal droppings; Cloacal swabs; Feces. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000300010 |
| |
|
|
|
