Research Project code：0250005608
Update date：Mar. 04, 2002
Change with growth in internal structure of cnemis of laying quail and chicken
2000 - 2000
Egg laying in Japanese quails and hens begins with disappearance of growing plates at both bone ends of cnemis and expression of marrowbone in medullary cavity. Bone density (density of hydroxyapatite) of cnemis after sexual maturation shows sexual difference in which the value in hen further rises up after beginning of laying egg.
Ministry with control over the research ：
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Ministry of Agriculture, Forestry and Fisheries