Developmental increases in hypothalamic neuropeptide Y content with the embryonic age of meat- and layer-type chicks.
We determined central neuropeptide Y (NPY) content of meat- and layer-type chicks at embryonic days 7, 14, 20, and at post-hatching day 1. The central NPY was detectable at day 7; hypothalamic NPY content developmentally increased with a similar pattern but a different level between both types of chicks. These results were discussed with respect to feeding behavior early period after hatching.
Zhou
Weidong
W
United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan.
Aoyama
Masato
M
Yoshizawa
Fumiaki
F
Sugahara
Kunio
K
D000704:Analysis of Variance; D000818:Animals; D001921:Brain / Q000196:embryology; D002417:Cattle; D002645:Chickens; D004625:Embryo, Nonmammalian / Q000502:physiology*; D047108:Embryonic Development; D005260:Female; D007031:Hypothalamus / Q000196:embryology*; D008460:Meat; D009478:Neuropeptide Y / Q000378:metabolism*; D009929:Organ Size; D010058:Oviposition
D009478:Neuropeptide Y