Marek's disease vaccination, with turkey herpesvirus, and enrofloxacin modulate the activities of hepatic microsomal enzymes in broiler chickens

Autor: Hrvoje Mazija, Andreja Prevendar Crnić, Estella Prukner-Radovčić, Jelena Pompe-Gotal, William L. Ragland, Darko Sakar
Rok vydání: 2004
Předmět:
Zdroj: Acta Veterinaria Hungarica. 52:211-217
ISSN: 1588-2705
0236-6290
DOI: 10.1556/avet.52.2004.2.9
Popis: Chickens were vaccinated against Marek's disease intramuscularly at one day of age. Enrofloxacin was givenad libitumin the drinking water at concentrations of 50, 100 and 250 mg/L from 8 days to 13 days of age when the animals were killed and the activities of cytochrome P-450 enzymes in the liver were measured. Vaccinated non-treated chickens served as a positive control. A negative control group was neither vaccinated nor treated. Vaccination decreased the activity of aniline hydroxylase and ethylmorphine N-demethylase in the positive control group. Subsequent application of enrofloxacin in the lowest concentration (50 mg/L) decreased, while that given at the highest level (250 mg/L) significantly increased the activity of the same microsomal enzymes. Relative liver weights and concentrations of proteins in 9000 ×gsupernatant were not affected by vaccination or treatment.
Databáze: OpenAIRE