Response of Laying Hens to total Dietary Replacement of Maize with Cassava.

Reesponse of laying hens fed on different dietary sulphur amino acid supplemented with maize oil

Evaluation of Dietary Calcium Requirements in Fayoumi Laying Hens

The experiment was carried out in poultry experimental station belonging to NRC, Cairo, Egypt. A total of 120 Fayoumi layers, 45 weeks old, were randomly divided into four equal groups. Each group included three replicates (10 hens in each). The first group was fed the control diet containing 3.3% gram Ca, whereas, the other three received diets containing 2.8, 2.6 and 2.4% gram Ca, respectivel...

Response of laying hens to supplementation with various fatty acids when fed diets inadequate in protein and sulphur amino acids

Toxicity of high dietary levels of DDT in laying hens.

White Leghorn hens were fed diets containing 0, 300, 600, or 1200 ppm technical grade DDT for three 28-day periods. The 1200 ppm diet caused tremors and 33% mortality in the final period, but no gross toxicity symptoms were seen in birds fed the other diets. Egg production was decreased during the third period by 600 or 1200 ppm. Egg weight was decreased during the third period by 600 or 1200 p...

Evaluation of Dietary Multiple Enzyme Preparation (Natuzyme) in Laying Hens

The current experiment was designed to evaluate the efficacy of adding the multi-enzyme mixture (Natuzyme) into layers' diets with different levels of energy and available phosphorus in relation to laying performance, egg qualities, blood cholesterol level, microflora and intestinal viscosity. Two hundred and fifty 43-wk-old Hy-Line commercial layers were divided into five groups with five repl...