Tags

Type your tag names separated by a space and hit enter

Temporal dynamic of adrenocortical and gonadal photo-responsiveness in male Japanese quail exposed to short days.
Domest Anim Endocrinol. 2014 Oct; 49:80-5.DA

Abstract

The study evaluated whether different short-term endocrine testicular and adrenocortical responses to short photoperiod exposure can persist over time and particularly when birds exhibit spontaneous cloacal gland recovery. At 11 wk of age, 33 male Japanese quail exposed to long photoperiod were switched to short photoperiod (8L:16D). Another group of males was kept under long photoperiod (n = 11; LD quail). After 5 wk of short photoperiod exposure, quail were classified as nonresponsive or responsive to short photoperiod, depending on whether the cloacal gland volume was above or below 1,000 mm(3) and with or without foam production, respectively. Since 11 wk of age and during a 20-wk period, droppings of all quail were collected to determine corticosterone and androgen metabolites (AM) by enzyme immunoassays. Cloacal gland volume was also determined weekly. Both short photoperiod nonresponsive (SD-NR) and responsive quail showed overall significantly lower (P < 0.01) AM values (518.8 ± 11.9 and 248.6 ± 17.1 ng/g, respectively) than quail that remained under long photoperiod (814.3 ± 24.1 ng/g). However, nonresponsive quail showed a significantly smaller reduction in their AM levels than their responsive counterparts. During the first 6 wk of short photoperiod exposure, SD-NR quail showed similar corticosterone metabolites values than LD quail. Corticosterone metabolite profiles changed from 7 wk of short photoperiod exposure onward, with photoperiodic differences (P < 0.01) persisting up to the end of study (LD: 228.9 ± 22.4 > SD-NR: 133.1 ± 15.5 > short photoperiod responsive: 61.6 ± 17.9 ng/g, respectively). Testicular and adrenocortical glands showed different degrees of activity associated with cloacal gland photoresponsiveness to short photoperiod manipulation. Our findings suggest long-term effects of short photoperiod, both in the hypothalamic-pituitary-gonadal and hypothalamic-pituitary-adrenocortical axis activity of quail, including males that exhibited spontaneous cloacal gland recovery.

Authors+Show Affiliations

Instituto de Investigaciones Biológicas y Tecnológicas (IIByT), Facultad de Ciencias Exactas, Físicas y Naturales (FCEFyN), Universidad Nacional de Córdoba (UNC) and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina.Instituto de Investigaciones Biológicas y Tecnológicas (IIByT), Facultad de Ciencias Exactas, Físicas y Naturales (FCEFyN), Universidad Nacional de Córdoba (UNC) and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina; Cátedra de Química Biológica, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Argentina.Department of Biomedical Sciences/Biochemistry, University of Veterinary Medicine, Veterinärplatz 1, A-1210 Vienna, Austria.Instituto de Investigaciones Biológicas y Tecnológicas (IIByT), Facultad de Ciencias Exactas, Físicas y Naturales (FCEFyN), Universidad Nacional de Córdoba (UNC) and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina. Electronic address: jmbusso@conicet.gov.ar.

Pub Type(s)

Controlled Clinical Trial
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25104133

Citation

Dominchin, M F., et al. "Temporal Dynamic of Adrenocortical and Gonadal Photo-responsiveness in Male Japanese Quail Exposed to Short Days." Domestic Animal Endocrinology, vol. 49, 2014, pp. 80-5.
Dominchin MF, Marin RH, Palme R, et al. Temporal dynamic of adrenocortical and gonadal photo-responsiveness in male Japanese quail exposed to short days. Domest Anim Endocrinol. 2014;49:80-5.
Dominchin, M. F., Marin, R. H., Palme, R., & Busso, J. M. (2014). Temporal dynamic of adrenocortical and gonadal photo-responsiveness in male Japanese quail exposed to short days. Domestic Animal Endocrinology, 49, 80-5. https://doi.org/10.1016/j.domaniend.2014.06.005
Dominchin MF, et al. Temporal Dynamic of Adrenocortical and Gonadal Photo-responsiveness in Male Japanese Quail Exposed to Short Days. Domest Anim Endocrinol. 2014;49:80-5. PubMed PMID: 25104133.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Temporal dynamic of adrenocortical and gonadal photo-responsiveness in male Japanese quail exposed to short days. AU - Dominchin,M F, AU - Marin,R H, AU - Palme,R, AU - Busso,J M, Y1 - 2014/07/05/ PY - 2014/03/12/received PY - 2014/06/18/revised PY - 2014/06/20/accepted PY - 2014/8/9/entrez PY - 2014/8/12/pubmed PY - 2015/5/16/medline KW - Androgens KW - Coturnix coturnix japonica KW - Fecal steroid metabolites KW - Noninvasive methods KW - Photoperiod KW - Stress SP - 80 EP - 5 JF - Domestic animal endocrinology JO - Domest Anim Endocrinol VL - 49 N2 - The study evaluated whether different short-term endocrine testicular and adrenocortical responses to short photoperiod exposure can persist over time and particularly when birds exhibit spontaneous cloacal gland recovery. At 11 wk of age, 33 male Japanese quail exposed to long photoperiod were switched to short photoperiod (8L:16D). Another group of males was kept under long photoperiod (n = 11; LD quail). After 5 wk of short photoperiod exposure, quail were classified as nonresponsive or responsive to short photoperiod, depending on whether the cloacal gland volume was above or below 1,000 mm(3) and with or without foam production, respectively. Since 11 wk of age and during a 20-wk period, droppings of all quail were collected to determine corticosterone and androgen metabolites (AM) by enzyme immunoassays. Cloacal gland volume was also determined weekly. Both short photoperiod nonresponsive (SD-NR) and responsive quail showed overall significantly lower (P < 0.01) AM values (518.8 ± 11.9 and 248.6 ± 17.1 ng/g, respectively) than quail that remained under long photoperiod (814.3 ± 24.1 ng/g). However, nonresponsive quail showed a significantly smaller reduction in their AM levels than their responsive counterparts. During the first 6 wk of short photoperiod exposure, SD-NR quail showed similar corticosterone metabolites values than LD quail. Corticosterone metabolite profiles changed from 7 wk of short photoperiod exposure onward, with photoperiodic differences (P < 0.01) persisting up to the end of study (LD: 228.9 ± 22.4 > SD-NR: 133.1 ± 15.5 > short photoperiod responsive: 61.6 ± 17.9 ng/g, respectively). Testicular and adrenocortical glands showed different degrees of activity associated with cloacal gland photoresponsiveness to short photoperiod manipulation. Our findings suggest long-term effects of short photoperiod, both in the hypothalamic-pituitary-gonadal and hypothalamic-pituitary-adrenocortical axis activity of quail, including males that exhibited spontaneous cloacal gland recovery. SN - 1879-0054 UR - https://www.unboundmedicine.com/medline/citation/25104133/Temporal_dynamic_of_adrenocortical_and_gonadal_photo_responsiveness_in_male_Japanese_quail_exposed_to_short_days_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0739-7240(14)00064-2 DB - PRIME DP - Unbound Medicine ER -