The rate of avian leukosis virus (ALV) horizontal transmission from positive newbom to negative newbom broiler chicks in the same flock was studied using 240 broilers (Ross 308 line n= 60 male and 60 female and Cobb Vantress line n=60 male and 60 female). The birds were tagged and housed in sheds (8 birds/m2) at the Faculty of Veterinary Medicine, San Marcos University, Lima. Cloaca! swabs, taken from every bird at one day of age, were tested for ALV using the ELISA p27 test. A total of 9 positives (Ross 308 n=5, Cobb Vantress n=4) were found and housed together with 111 negative birds from both lines. The remaining 120 negative birds, again from both lines, were likewise housed together as a control group. Cloaca) swabs were taken from every bird and ELISA tested at 21, 28 and 49 days of age. The greatest prevalence of ALV infection, 60.18 ± 9.03%, was found at 49 days in the group containing the infected chicks. At 21 days, the accumulated incidence of ALV infection in these birds, 34.62 ± 8.77%, reflects a horizontal transmission rate of 13.57%.
|Título traducido de la contribución||Monitoring of the avian leucosis virus (AVL) within the first 49 days of life in broilers|
|Número de páginas||6|
|Publicación||Revista de Investigaciones Veterinarias del Peru|
|Estado||Publicada - 2001|
|Publicado de forma externa||Sí|
Nota bibliográficaPublisher Copyright:
© 2001 Universidad Nacional Mayor de San Marcos. All rights reserved.
- Avian leukosis virus
- Horizontal transmission