In layer breeder flocks 60% was the highest prevalence of MG recorded during the age of 4-8 weeks, followed by 57.
This indicates the transovarian infection caused by considerably high prevalence of MG in breeder flocks.
Pre and postnatal conditioning induced thermotolerance on body weight, physiological responses and relative asymmetry of broilers originating from young and old breeder flocks
This disease is being transmitted vertically to the young chicks therefore such a high occurrence of pullorum in the breeder flocks may be a risk of transmission of infection to the day-old chicks.
It is confirmed through this study that the prevalence of the salmonella pullorum is very high in the poultry flocks in and around Kasur, especially the incidence was found very high in breeder flocks.
Avian hepatitis E virus infection and possible associated clinical disease in broiler breeder flocks
An Epidemiological study of the hatchability in broiler breeder flocks
In February 2005, a respiratory problem of unknown etiology was observed in broiler and broiler breeder flocks in some areas of Gujranwala, Pakistan and its surrounding districts.
Serological study for quantification of antibodies to AIV in vaccinated flocks in central Punjab (Pakistan) has shown satisfactory level of protection against AIV-subtype H7N3 in commercial layer and breeder flocks (Numan et al.
For this purpose, 324 female Japanese quails were randomly picked from breeder flocks
consisting of two age groups i.
A strict biosecurity and a controlled environment maintained in the breeder flocks
whereas biosecurity program in layer management is minimum than the breeders.