The functional properties of foods can be preserved when they are coated with edible films, which are especially reduce the moisture loss and the transportation of O2 and CO2. The present research is conducted to study the effect of shellac as coating material and storage time on the internal quality of chicken eggs. 448 fresh chicken eggs were divided into 4 groups of treatments 0, 1, 3 and 5% shellac solutions and stored for 0, 10, 20 and 30 days at 40 C. There was a proportional relationship between the weight loss of o eggs and the pH values of untreated eggs (control) during the storage time. A reverse relationship was appeared with coated chicken eggs. The Haugh unit (Hu) usually decrease with the time of storage, but this was limited with coated eggs. No bad changes were associated with internal quality of chicken eggs, so we recommend shellac solution as coating material.

The aim of this study is to know the effect of different percentages of chitosan added to drinking water on the weight and quality of quail meat, physical anatomy in terms of (the body of the long carcass, the girth of the chest, the length of the thigh bones, the thigh racket, the fullness of the chest), chemical analysis (protein, moisture, fat and ash) and sensory evaluation of quail meat. It was purchased 320 Iraqi-origin birds of quail and one day old. Chicks were randomly distributed to three equal groups' treatments and treated with chitosan and added to the drinking water: the first treatment (0.1 gm./L water only as a control treatment), the second treatment (0.2 gm./L of chitosan was added to the drinking water) and the third treatment (0.3 gm./L of chitosan was added to the drinking water).The results showed a significant difference (p≤ 0.05) between groups in carcass cutting, physical anatomy, measurement of carcass parts and chemical analysis, as well as a significant and clear improvement in the sensory characteristics of quail meat with a concentration of 0.2 gm./L chitosan. We conclude from this that adding low concentrations of chitosan to the drinking water of quail birds showed a significant difference in growth performance, meat quality, chemical composition, carcass weights and physical anatomy, as well as improving sensory characteristics and quality of quail meat.

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