The Egg Safety Action Plan released in 1999 raised many questions concerning egg temperature used in the risk assessment model. Therefore, a national study by researchers in California, Connecticut, Georgia, Iowa, Illinois, North Carolina, Pennsylvania, and Texas was initiated to determine the internal and external temperature sequence of eggs from oviposition through distribution. Researchers ...

Members of Salmonella enterica are frequently involved in egg and egg product related human food poisoning outbreaks worldwide. In Australia, Salmonella Typhimurium is frequently involved in egg and egg product related foodborne illness and Salmonella Mbandaka has also been found to be a contaminant of the layer farm environment. The ability possessed by Salmonella Enteritidis to colonize repro...

Egg production data on Rhode Island Red and White Plymouth Rock hens selected for 11 generations under a tropical environment in Thailand were used to estimate genetic parameters for age at first eggs (AFE), body weight at first eggs (BFE), weight of first eggs (WFE), egg production from 1 day to 17 weeks of lay (EGG) and average egg weight at 17 week of lay (EWT). Estimated heritability for AF...

the experiment was designed to study the changes in production performance and egg quality of old laying hens after injection of different doses of growth hormone (gh) and testosterone (ts). a total of 160 old laying hens (hyline w-36) at 73 wks of age were randomly assigned to four treatments with four replicates and 10 birds in each replicate in a completely randomized design. treatment group...

this experiment was conducted to evaluate the effects of different levels of biohebal® feed supplement on performance, egg traits, blood biochemical and immunity parameters of laying hens. experiment was conducted in a completely randomized design with 144 of hy- line (w36) laying hens from 23 to 34 weeks of age in 4 treatment and 3 replicate (with 12 bird in each replicate) and included: contr...

This experiment was conducted to evaluation the effects of different levels of untreated and treated green grape leaf with urea on performance, egg quality traits and blood parameters of laying hens. In this experiment 192 Hy-Line (w-36) laying hens, 35 to 46 wk of age were divided in to 4 treatments with 4 replicates (12 birds per replicate) in a completely randomized design experiment. The tr...

The peripheral layer of the egg has long been recognized as a region with special properties. Several types of experiments argue for the existence of an egg cortex (reviewed in Wilson, 1925; Chambers and Chambers, 1961; Hiramoto, 1970; Vacquier, 1981). We can cite in chronological order: micromanipulations of the egg with rods and micropipettes; low speed centrifugation experiments that stratif...