TY  - JOUR
T1  - Plasma Prolactin and Corticosterone Concentrations Are Changing Toward Hatch with a Different Manner Between Layer- and Broiler-Type Chickens
AU - , M. Sato AU - , T. Tachibana AU - , A. Tsukada AU - , M. Furuse 
JO  - Journal of Animal and Veterinary Advances
VL  - 6
IS  - 8
SP  - 923
EP  - 926
PY  - 2007
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2007.923.926
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2007.923.926
KW  - Chicken
KW  -corticosterone
KW  -embryo
KW  -prolactin
AB  - Plasma Prolactin (PRL) and Corticosterone (CORT) concentrations in broiler- and layer-type chickens were compared during embryonic development (14 and 18 days of incubation (E14 and E18)) and at hatch (P0).  Plasma PRL concentrations were comparable and kept low in both types during embryonic development, but the value sharply increased at P0 with special reference to layers.  Plasma CORT concentrations were similar and gradually increased toward P0 in both types and the values in layers were higher than in broilers at P0.  The results obtained here suggest that plasma PRL and CORT concentrations were influenced by genetic selection just after hatching, but not during embryonic development.
ER  -