Zobrazeno 1 - 10
of 29
pro vyhledávání: '"A. J. Fivizzani"'
Publikováno v:
General and Comparative Endocrinology. 127:34-39
Many oviparous reptiles exhibit temperature-dependent sex determination (TSD); i.e., the temperature at which the egg is incubated determines the sex of the offspring. In TSD reptiles, yolk steroids not only may influence sex determination, but also
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb12c01bead89db6c116c4df2b272554
https://doi.org/10.1016/s0016-6480(02)00018-7
https://doi.org/10.1016/s0016-6480(02)00018-7
Publikováno v:
General and Comparative Endocrinology. 127:26-33
Although yolk steroids appear to play important roles in the development, growth, and behavior of some birds, their effects in oviparous reptiles are largely unknown. These investigations were initiated to determine initial levels of steroid hormones
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4b6abf0247e984e612eda37557bae9f
https://doi.org/10.1016/s0016-6480(02)00017-5
https://doi.org/10.1016/s0016-6480(02)00017-5
Publikováno v:
The Progressive Fish-Culturist. 60:179-191
This experiment examined whether photoperiodic changes induce chinook salmon Oncorhynchus tshawytscha to alter various indices of smoltification. The effect of 24 h light, a constant photoperiod of 9 h light: 015 h dark (9L:15D), and a naturally incr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f97924ce147e98857b255965b1f80481
https://doi.org/10.1577/1548-8640(1998)060<0179:eothls>2.0.co
https://doi.org/10.1577/1548-8640(1998)060<0179:eothls>2.0.co
Publikováno v:
General and Comparative Endocrinology. 109:119-132
Wilson's Phalarope (Phalaropus tricolor) is a sex role-reversed species in which incubation of eggs and care of young is performed exclusively by the male. Plasma levels of prolactin (PRL), the hormone most associated with parental care in birds, are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06bcf443ab97b988e634b1d39397c11d
https://doi.org/10.1006/gcen.1997.7017
https://doi.org/10.1006/gcen.1997.7017
Publikováno v:
General and Comparative Endocrinology. 107:191-200
The leading explanation of temperature-dependent sex determination (TSD) in reptiles postulates that (1) ovarian differentiation is directed by estrogen and that (2) estrogen is synthesized in the developing gonad following induction of aromatase exp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db2873008f1f7096e1136ceadeda45df
https://doi.org/10.1006/gcen.1997.6913
https://doi.org/10.1006/gcen.1997.6913
Publikováno v:
The Condor. 99:397-405
We measured the effect of clutch-size changes on levels of circulating prolactin (prl) among incubating male Wilson's Phalaropes in order to identify the influence of clutch-size as an exogenous determinant of circulating prl, and to better understan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c68818c9dc6f7e5288135258e3539cec
https://doi.org/10.2307/1369946
https://doi.org/10.2307/1369946
Publikováno v:
The Journal of Experimental Zoology. 274:221-226
In many oviparous reptiles, incubation temperature determines hatchling sex. Manipulation of the embryonic hormonal environment can result in sex reversal. We measured circulating estradiol 17-β (E2) and testosterone (T) levels in temperature-determ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::905e347f3232e35154172979ddb98e38
https://doi.org/10.1002/(sici)1097-010x(19960301)274:4<221::aid-jez2>3.0.co
https://doi.org/10.1002/(sici)1097-010x(19960301)274:4<221::aid-jez2>3.0.co
Autor:
Albert J. Fivizzani, Bruce A. Barton, Mark A. Sheridan, Timothy L. Hoffnagle, Carmen D. Eilertson, Darrin J. Cowley
Publikováno v:
Aquaculture. 121:147-155
A land-locked strain of chinook salmon was used to discriminate seawater preadaptive aspects of smoltification from development-associated aspects of smoltification. Liver total lipid and lipid class composition, as well as plasma concentrations of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c88f09625b3df0b25c2af3b756a2b1ac
https://doi.org/10.1016/0044-8486(94)90016-7
https://doi.org/10.1016/0044-8486(94)90016-7
Publikováno v:
General and Comparative Endocrinology. 80:407-418
We examined the relationship between circulating levels of gonadal steroids (testosterone, progesterone, and estradiol) and breeding behavior in semipalmated sandpipers (Calidris pusilla) and red-necked phalaropes (Phalaropus lobatus) breeding sympat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2abea16b933dec6a458401140153da2
https://doi.org/10.1016/0016-6480(90)90190-w
https://doi.org/10.1016/0016-6480(90)90190-w