Abstract：
:Two experiments were conducted to further examine the interaction of social stimuli and photoperiod on cloacal and gonadal responses in male Japanese quail. In experiment 1, adult males kept on a maximal (15L:9D) stimulatory photoperiod were surgically deafened and/or visually isolated from roommates. After 6 weeks, there were no differences in cloacal gland or testes size among visually isolated birds, deafened birds, visually isolated and deafened birds, and control birds. It would appear that neither auditory nor visual contact with other males is necessary to maintain reproductive activity under a maximal stimulatory photoperiod. In Experiment 2, 5-week-old males were surgically deafened and kept on either a maximal (15L:9D) or minimal (12L:12D) stimulatory photoperiod for about 10 weeks. The rates of cloacal gland growth were significantly slower in birds kept on the shorter photoperiod compared to the longer photoperiod and in deafened quail compared to intact quail. The difference in cloacal gland size between deafened and intact birds was markedly greater on the minimal compared to the maximal stimulatory photoperiod. These findings suggest that under a minimal stimulatory photoperiod auditory information supplements the photoperiod to accelerate reproductive maturation. At a maximal stimulatory photoperiod, however, the effects of auditory cues on cloacal gland growth appear masked.
journal_name
Gen Comp Endocrinoljournal_title
General and comparative endocrinologyauthors
Kerlan JT,Blumenthal DC,Gilsdorf JT,Greenspon JMdoi
10.1016/0016-6480(88)90037-8subject
Has Abstractpub_date
1988-03-01 00:00:00pages
448-54issue
3eissn
0016-6480issn
1095-6840journal_volume
69pub_type
杂志文章abstract：:Jawed vertebrates (Gnasthostomes) are broadly separated into cartilaginous fishes (Chondricthyes) and bony vertebrates (Osteichthyes). Cartilaginous fishes are divided into chimaeras (e.g. ratfish, rabbit fish and elephant shark) and elasmobranchs (e.g. sharks, rays and skates). Both cartilaginous fish and bony verteb...
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journal_title：General and comparative endocrinology
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journal_title：General and comparative endocrinology
pub_type： 杂志文章,评审
doi：10.1016/j.ygcen.2009.09.001
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pub_type： 杂志文章
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journal_title：General and comparative endocrinology
pub_type： 杂志文章
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journal_title：General and comparative endocrinology
pub_type： 杂志文章
doi：10.1006/gcen.1996.0013
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journal_title：General and comparative endocrinology
pub_type： 杂志文章
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journal_title：General and comparative endocrinology
pub_type： 杂志文章
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journal_title：General and comparative endocrinology
pub_type： 杂志文章
doi：10.1006/gcen.1998.7118
更新日期：1998-09-01 00:00:00
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journal_title：General and comparative endocrinology
pub_type： 杂志文章
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更新日期：1998-05-01 00:00:00
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journal_title：General and comparative endocrinology
pub_type： 杂志文章
doi：10.1016/0016-6480(92)90104-r
更新日期：1992-05-01 00:00:00
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journal_title：General and comparative endocrinology
pub_type： 杂志文章
doi：10.1016/0016-6480(89)90102-0
更新日期：1989-02-01 00:00:00
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journal_title：General and comparative endocrinology
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journal_title：General and comparative endocrinology
pub_type： 杂志文章,评审
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更新日期：2007-08-01 00:00:00
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journal_title：General and comparative endocrinology
pub_type： 杂志文章
doi：10.1016/0016-6480(90)90117-5
更新日期：1990-08-01 00:00:00
abstract：:Songbirds possess a specialized network of brain nuclei mediating song learning and production, the song system. In many species, the nuclei in this circuit are larger in volume in males housed on long photoperiods than in males housed on short photoperiods. Exposure to long days initially leads to increases in circul...
journal_title：General and comparative endocrinology
pub_type： 杂志文章
doi：10.1006/gcen.1996.6829
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journal_title：General and comparative endocrinology
pub_type： 杂志文章
doi：10.1016/j.ygcen.2011.11.009
更新日期：2012-01-15 00:00:00
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journal_title：General and comparative endocrinology
pub_type： 杂志文章
doi：10.1016/0016-6480(88)90213-4
更新日期：1988-11-01 00:00:00
abstract：:A biochemical analysis was made of the crustacean hyperglycemic hormone (CHH) of the crayfish Astacus leptodactylus, as present in the CHH-producing perikarya, in the axonal tract and in the sinus gland, respectively. Hyperglycemic material was analyzed by polyacrylamide gel electrophoresis (PAGE and SDS-PAGE) and hig...
journal_title：General and comparative endocrinology
pub_type： 杂志文章
doi：10.1016/0016-6480(86)90202-9
更新日期：1986-02-01 00:00:00
abstract：:Numerous endocrine disrupting chemicals can affect the growth and development of amphibians. We investigated the effects of a targeted disruption of the endocrine axes modulating development and somatic growth. Wood frog (Lithobates sylvaticus) tadpoles were exposed for 2weeks (from developmental Gosner stage (Gs) 25 ...
journal_title：General and comparative endocrinology
pub_type： 杂志文章
doi：10.1016/j.ygcen.2015.01.012
更新日期：2015-10-01 00:00:00
abstract：:The isolation of a maturational gonadotropin from pituitaries of Atlantic croaker (Micropogonias undulatus), a marine teleost belonging to the order perciformes, is described. A radioimmunoassay has been developed for the measurement of this hormone in blood samples and validation of the assay is presented. The hormon...
journal_title：General and comparative endocrinology
pub_type： 杂志文章
doi：10.1016/0016-6480(89)90200-1
更新日期：1989-03-01 00:00:00
