Eggs obtained from 46 and 42 weeks old meat (Hybro) and layer (Leghorn) breeders flocks, respectively were used to examine the effects of genetic type of birds and egg size (small, medium and large) on variables of eggshell characteristics and hatchability traits. The variables measured were egg weight (EW), egg surface area (ESA) and eggshell characteristics (shell conductance (EC), per cent s...

A total of 282 serum samples were collected from 10 flocks, representing eight poultry breeding companies. These birds were reared in Punjab and North West Frontier Province of Pakistan. The antibodies against Turkey Rhinotracheitis virus/Swollen Head Syndrome (TRT/SHS) were detected by using a commercial kit based on Blocking Enzyme Immuno-Assay. Out of 282 samples tested for TRT/SHS antibodie...

An avian influenza (AI) outbreak occurred in meat-type chickens in central Pennsylvania from December 2001 to January 2002. Two broiler breeder flocks were initially infected almost simultaneously in early December. Avian influenza virus (AIV), H7N2 subtype, was isolated from the two premises in our laboratory. The H7N2 isolates were characterized as a low pathogenic strain at the National Vete...

Abstract The aim of this study was to predict production indicators and determine their potential economic impact on a poultry integration system using artificial neural networks (ANN) models. Forty zootechnical parameters from broiler breeder farms, one hatchery, flocks, slaughterhouse were selected as variables. ANN models established for four output variables: “saleable hatching”, “weight at...

egg drop syndrome (eds) is caused by a hemagglutinating adenovirus which has become a major cause of lost egg production and sever economic losses in breeder and layer chicken flocks throughout the world. a pcr assay was optimized for detection of eds virus in inoculated allantoic fluids (afs) of duck and chicken emberyonated eggs. two strains of eds viruses were propagated in allantoic cavity ...