Determination of the sanitary status of Creole chickens from the integral agro environmental production and training center (CIPCA), Quiché, Guatemala

Abstract

The poultry population is constantly threatened by infectious diseases that cause a negative economic impact and reduce the zootechnical performance of birds. Therefore, it is necessary to know the sanitary status of the birds admitted to an integral production center, CIPCA, and for this it requires the evaluation of serum antibody levels against Avian Influenza, Newcastle, Infectious Bronchitis, and Gumboro. The blood serum of the birds was obtained by puncture of the brachial vein, placed in transparent straws and moved in cooler with coolant to LARRSA (Regional Reference Laboratory for Animal Health), where the haemagglutination inhibition tests were carried out. Avian Influenza and Newcastle, and ELISA for infectious bronchitis and Gumboro. The population size is 45 Creole hens, using the formula of finite populations; the birds sampled were 19, with simple random sampling. Descriptive statistics was used as the method of analysis and the information was summarized in tables and graphs. The results obtained indicate that 42% of the birds studied are seropositive to Avian Influenza and were probably exposed to field challenge, 47% are seropositive to Newcastle with probable titres of deficient vaccination or by contact with the field lentogenic virus, the 84% are seropositive to Infectious bronchitis, which indicates their exposure to the field virus; Creole hens do not have levels of serum antibodies against Gumboro that guarantee the transfer of passive immunity to progeny.