Abstract
This study was conducted on the basis of last 10 years un-balanced diseases status data of morbidity, mortality and sign/symptoms of diseases (not avian influenza) in private sectors to investigate the prevalence of diseases in broiler breeder flocks. Different available strains of Hubbard and Arbor acre broiler breeder farms in the vicinity of Lahore were conducted during the year 2011. The diseases records of 30 Hubbard and Arbor Acre broiler breeder farms collectively, where different diseases and outbreaks were known to be suffered were surveyed. Newcastle disease, infectious bronchitis (IB), respiratory diseases, avian influenza (A.I) and hydro were found to be the major diseases and prevalence of cholera, omphatitis, pullorum, necrotic enteritis, ulcerative enteritis, coccodiosis and styphloco was also noted. The prevalence of coccidiosis was highest (28.83 ± 2.12%), followed by stypholoco and necrotic enteritis with average prevalence of (25.00 ± 2.24) and (25.00 ± 2.50), respectively. The overall disease prevalence in the studied broiler breeders (all strains) was (24.44 ± 0.887 %). Coccidiosis was commonly most prevalent disease and Styphloco or Necrotic enteritis showed almost similar prevalence in the broiler breeders in the study area. Morbidity data concluded 41.20 % symptoms of conjunctivitis, followed by exposed rales/abnormal breathing sound (38.50%) and warts/scabs (35.20%). The prevalence of Hydro, Newcastle, IB, Respiratory, AI and Gumboro in Hubbard and Arbo Acre broiler breeder flocks was (24.03 ± 2.49), (23.86 ± 2.41), (22.73 ± 2.43), (22.13 ± 2.34), (21.46 ± 2.53) and (19.43±2.05)%, respectively. In Hubbard and Arbor Acre strains, Hydro and coccidiosis showed dominating occurrence as compared to other poultry diseases in the study area. The trend of diseases occurrence showed similarity at random at all the broiler breeder farms invested and statistically, the differences were non-significant (P>0.05). Good managemental practice, strict biosecurity and recommended vaccination schedules must be adopted by the farmers which is highly helpful to prevent diseases at the farm level. Cautions must be taken during out breaks to monitor titers against viral diseases
