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PRE AND POST HATCH PERFORMANCE OF DIFFERENT JAPANESE QUAIL EGG COLORS INCUBATED UNDER PHOTOSTIMULATION

Research Authors
M.F.A. Farghly1, Kh.M.A. Mahrose 2 and. E. Abou-kassem 2
Research Abstract

The present experiment was carried out using 900 Japanese quail eggs to study the pre and post hatch performance of different egg colors incubated either under darkness or lighting conditions. All eggs were classified into three categories according to shell colors (white, spotted violet and spotted brown eggs), and incubated under the recommended conditions of the quail eggs under darkness or lighting. The results showed that the spotted brown eggs have significantly (P≤0.05) the thicker egg shell than those of spotted violet and white. All of the other traits of physical and chemical composition were not significantly changed. However, the effect of egg shell color on embryonic weight was significant (P≤0.05) at 10, 12 and 14 days of incubation. The spotted brown eggs showed significantly (P≤0.05) the higher percentages of hatchability even incubated under darkness or lighting (72.64 and 72.69%, respectively). The chick weight at hatch was significantly (P≤0.05) heavier in group of spotted brown egg color even incubated in darkness or lighting (7.94 and 7.96 g, respectively) than the other groups of eggs. However, each of check weight loss (%), chick sex and chick quality were not influenced by egg shell color. Furthermore, chicks produced from spotted brown eggs showed significantly the higher values of body weight gain (3.86 and 3.85 g) even incubated under lighting or darkness. There are no significant differences in egg mass and feed conversion ratio. Also, each of plumage conditions, leg problems and mortality (%) from hatch to 20 weeks of age were not significantly changed due egg shell colors even incubated under darkness or lighting conditions. Therefore, it could be concluded that selecting eggs of spotted brown and spotted violet of colored shell to get the best possible pre and post hatching performance, which positively reflect on the profit which could be gained by the producers.

Research Department
Research Journal
Asian Journal of poultry science
Research Member
Research Publisher
Asian Journal of poultry science
Research Rank
1
Research Vol
9 (1)
Research Year
2015
Research Pages
19-30