TY - JOUR
T1 - Sexual differentiation of copulatory behaviour in the male chick requires gonadal steroids
AU - Sayag, N.
AU - Snapir, N.
AU - Arnon, E.
AU - Grimm, V. E.
AU - Robinzon, B.
AU - Ela Halawani, M. E.
PY - 1991/7/1
Y1 - 1991/7/1
N2 - 1. Embryonic injections of 0–3 mg/egg of tamoxifen (TAM), 0–2 mg/egg CI-628 (both antioestrogens), 0–5 mg/egg (ATD (aromatisation inhibitor), or antibodies to oestradiol (E), all suppressed male copulatory activity (MCA) in young male chicks. 2. Embryonic injections with either flutamide (F, androgen antagonist) or high dose of antibodies to testosterone (T) only slightly suppressed MCA. 3. TAM had no effect on embryonic plasma LH levels, 24 and 48 h after injection. 4. It seems that at the embryonic stage oestradiol is required for the normal differentiation of MCA.
AB - 1. Embryonic injections of 0–3 mg/egg of tamoxifen (TAM), 0–2 mg/egg CI-628 (both antioestrogens), 0–5 mg/egg (ATD (aromatisation inhibitor), or antibodies to oestradiol (E), all suppressed male copulatory activity (MCA) in young male chicks. 2. Embryonic injections with either flutamide (F, androgen antagonist) or high dose of antibodies to testosterone (T) only slightly suppressed MCA. 3. TAM had no effect on embryonic plasma LH levels, 24 and 48 h after injection. 4. It seems that at the embryonic stage oestradiol is required for the normal differentiation of MCA.
UR - http://www.scopus.com/inward/record.url?scp=0026198208&partnerID=8YFLogxK
U2 - 10.1080/00071669108417386
DO - 10.1080/00071669108417386
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
C2 - 1893270
AN - SCOPUS:0026198208
SN - 0007-1668
VL - 32
SP - 607
EP - 614
JO - British Poultry Science
JF - British Poultry Science
IS - 3
ER -