Meat and bone meal (MBM) and oyster shell meal (OSM) were supplemented to a basal diet (LMS), either alone or in combination, in order to assess the dietary influences of those complementary Ca sources on performance and egg quality of laying hens. Four hundred and thirty-two Brown-Nick hens, at the beginning of their second production period, were divided into four treatment groups with six re...

Received at: 16/5/2015 Accepted: 15/6/2015 Storage of table eggs in refrigeration is a popular habit but it may be lead to different degree of contamination with pathogens and increase the risks of illness in humans. A total of 75 chicken table eggs (grades II) were collected from 5 farms (15 of each) in Alexandria province and which were stored in refrigerator at 5 °C. The collected eggs were ...

the present study was conducted to determine the effects of rice bran and dietary multi-enzyme (natuzyme) on performance, egg quality, and blood biochemical parameters of 288 laying hens during 12 week. this experiment was conducted in a completely randomized design in a factorial arrangement of 4×2, with four different levels of rice bran (0, 5, 10 and 15%) and two levels of multi enzyme (0 an...

An experiment was conducted to elucidate the effect of graded levels of vitamin D3 in White Leghorn (WL) layer breeders on egg production, shell quality, hatchability of eggs and juvenile performance of offspring during their late laying period (7288 wk). White Leghorn breeder females were randomly divided into 5 groups of 50 each and were housed in individual California cages in an open-side h...

In a context of high productivity, eggs’ quality assessment is necessary for enhanced safety and quality assurance towards the consumers and feedback for producers. The quality assessment of eggs and egg products is performed using destructive and time-consuming methods, therefore the use of rapid tools becomes mandatory, especially in the case of a high production rate. Near Infrared (NIR) spe...