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T. Siopes · SciRah

Researcher profile · Semantic Scholar

T. Siopes

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T. Siopes — researcher profile on SciRah

h-index: 23
Works: 112
Citations: 1,917

Most-cited papers

Effects of lighting conditions and melatonin supplementation on the cellular and humoral immune responses in Japanese quail Coturnix coturnix japonica.
C. Moore, T. Siopes
2000General and Comparative Endocrinology153 citations
Semantic Scholar
The Quail's Eye: A Biological Clock
H. Underwood, R. Barrett, T. Siopes
1990Journal of Biological Rhythms101 citations Open access
Semantic Scholar
Effects of thyroidectomy on egg production, molt, and plasma thyroid hormone concentrations of turkey hens.
R.-J. Lien, T. Siopes
1989Poultry Science47 citations Open access
Semantic Scholar
Melatonin Does Not Link the Eyes to the Rest of the Circadian System in Quail: A Neural Pathway Is Involved
H. Underwood, R. Barrett, T. Siopes
1990Journal of Biological Rhythms44 citations Open access
Semantic Scholar
Melatonin Rhythms in Quail: Regulation by Photoperiod and Circadian Pacemakers
H. Underwood, T. Siopes
1985Journal of Pineal Research43 citations
Semantic Scholar
The effects of light intensity on turkey poult performance, eye morphology, and adrenal weight.
T. Siopes, M. Timmons, G. R. Baughman, C. R. Parkhurst
1984Poultry Science43 citations Open access
Semantic Scholar
Ocular clocks are tightly coupled and act as pacemakers in the circadian system of Japanese quail.
C. T. Steele, B. Zivkovic, T. Siopes, H. Underwood
2003American Journal of Physiology. Regulatory Integrative and Comparative Physiology38 citations
Semantic Scholar
Melatonin enhances cellular and humoral immune responses in the Japanese quail (Coturnix coturnix japonica) via an opiatergic mechanism.
Chris B. Moore, T. Siopes
2003General and Comparative Endocrinology37 citations
Semantic Scholar
Participation of the eyes in the photosexual response of Japanese quail (Coturnix coturnix japonica).
T. Siopes, Wilbor O. Wilson
1980Biology of Reproduction37 citations
Semantic Scholar
Does a Biological Clock Reside in the Eye of Quail?
H. Underwood, T. Siopes, R. Barrett
1988Journal of Biological Rhythms35 citations
Semantic Scholar
Function and histology of testes from aged coturnix maintained on different photoperiods.
V. Eroschenko, Wilbor O. Wilson, T. Siopes
1977Journal of Gerontology34 citations
Semantic Scholar
The relationship of plasma thyroid hormone and prolactin concentrations to egg laying, incubation behavior, and molting by female turkeys exposed to a one-year natural daylength cycle.
R.-J. Lien, T. Siopes
1993General and Comparative Endocrinology33 citations
Semantic Scholar
Effect of intermittent lighting on the reproductive performance of first-year and recycled turkey hens.
T. Siopes, R. Pyrzak
1990Poultry Science30 citations Open access
Semantic Scholar
Turkey plasma thyroid hormone and prolactin concentrations throughout an egg laying cycle and in relation to photorefractoriness.
R.-J. Lien, T. Siopes
1989Poultry Science30 citations Open access
Semantic Scholar
Pineal gland and ocular influences on turkey breeder hens. 1. Reproductive performance.
T. Siopes, H. Underwood
1987Poultry Science29 citations Open access
Semantic Scholar
Overcompensation of circulating and local insulin-like growth factor-1 during catch-up growth in hybrid striped bass (Morone chrysops × Morone saxatilis) following temperature and feeding manipulations
Matthew E. Picha, Peggy R. Biga, Nicholas J. Galt, A. S. Mcginty +4 more
201428 citations
Semantic Scholar
Pineal melatonin secretion, but not ocular melatonin secretion, is sufficient to maintain normal immune responses in Japanese quail (Coturnix coturnix japonica).
Chris B. Moore, T. Siopes, C. T. Steele, H. Underwood
2002General and Comparative Endocrinology28 citations
Semantic Scholar
Participation of the eyes in the photostimulation of chickens.
T. Siopes, W. Wilson
1980Poultry Science27 citations Open access
Semantic Scholar
Eye and gonad: role in the dual-oscillator circadian system of female Japanese quail.
H. Underwood, T. Siopes, K. Edmonds
1997American Journal of Physiology26 citations
Semantic Scholar
The effect of high and low intensity cool-white fluorescent lighting on the reproductive performance of turkey breeder hens.
T. Siopes
1984Poultry Science26 citations Open access
Semantic Scholar
Transient hypothyroidism reinitiates egg laying in turkey breeder hens: termination of photorefractoriness by propylthiouracil.
T. Siopes
1997Poultry Science23 citations Open access
Semantic Scholar
The effect of light color on egg quality of turkey hens in cages
R. Pyrzak, T. Siopes
198623 citations Open access
Semantic Scholar
Critical day lengths for egg production and photorefractoriness in the domestic turkey.
T. Siopes
1994Poultry Science22 citations Open access
Semantic Scholar
Morphologic changes induced by photoperiod in eyes of turkey poults.
G. Davis, T. Siopes, R. Peiffer, C. Cook
1986American Journal of Veterinary Research22 citations
Semantic Scholar
The effect of full-spectrum fluorescent lighting on reproductive traits of caged turkey hens.
T. Siopes
1984Poultry Science22 citations Open access
Semantic Scholar
Circadian organization in japanese quail
H. Underwood, T. Siopes
198422 citations
Semantic Scholar
The effect of light intensity on the growth performance of male turkeys.
T. Siopes, M. Timmons, G. R. Baughman, C. R. Parkhurst
1983Poultry Science22 citations Open access
Semantic Scholar
Temporal characteristics and incidence of photorefractoriness in turkey hens.
T. Siopes
2001Poultry Science21 citations Open access
Semantic Scholar
Diurnal variation in the cellular and humoral immune responses of Japanese quail: role of melatonin.
T. Siopes, H. Underwood
2008General and Comparative Endocrinology20 citations
Semantic Scholar
Circadian Ovulatory Rhythms in Japanese Quail: Role of Ocular and Extraocular Pacemakers
B. Zivkovic, H. Underwood, T. Siopes
2000Journal of Biological Rhythms20 citations Open access
Semantic Scholar
Effects of age at lighting on reproduction of turkey hens.
T. Siopes
1992Poultry Science20 citations Open access
Semantic Scholar
Plasma corticosterone response of turkeys to adrenocorticotropic hormone: age, dose, and route of administration effects.
G. Davis, T. Siopes
1987Poultry Science19 citations Open access
Semantic Scholar
Pineal and ocular influences on male and female turkeys: plasma luteinizing hormone and prolactin levels during gonadal development.
T. Siopes, M. E. el Halawani
1989General and Comparative Endocrinology18 citations
Semantic Scholar
A circadian rhythm in photosensitivity as the basis for the testicular response of Japanese quail to intermittent light.
T. Siopes, Wilbor O. Wilson
1980Poultry Science18 citations Open access
Semantic Scholar
Egg Production, Feed Consumption, and Maintenance Energy Requirements of Leghorn Hens as Influenced by Dietary Energy at Temperatures of 15.6 and 26.7 C
P. Vohra, W. Wilson, T. Siopes
197918 citations Open access
Semantic Scholar
Enhancement of cellular and humoral immunity following embryonic exposure to melatonin in turkeys (Meleagris gallopavo).
Chris B. Moore, T. Siopes
2005General and Comparative Endocrinology17 citations
Semantic Scholar
Intermittent light and growth performance of male turkeys from 2 to 22 weeks of age.
T. Siopes, C. R. Parkhurst, G. R. Baughman
1986Poultry Science17 citations Open access
Semantic Scholar
The effect of light duration on turkey poult performance and adrenal function.
G. Davis, T. Siopes
1985Poultry Science17 citations Open access
Semantic Scholar
Spontaneous ovarian adenocarcinoma in the domestic turkey breeder hen (Meleagris gallopavo): effects of photoperiod and melatonin.
C. Moore, T. Siopes
2004Neuro - endocrinology letters16 citations
Semantic Scholar
Photostimulated fos-like immunoreactivity in tuberal hypothalamus of photosensitive vs. photorefractory turkey hens.
J. Millam, Christina B. Craig-Veit, T. Siopes
2003General and Comparative Endocrinology16 citations
Semantic Scholar
Characteristics of oviposition patterns of turkey hens and the influence of different wavelengths of light.
R. Pyrzak, T. Siopes
1989British Poultry Science15 citations
Semantic Scholar
Initiation of egg production by turkey breeder hens: sexual maturation and age at lighting.
T. Siopes
2010Poultry Science14 citations Open access
Semantic Scholar
Thyroid hormone and prolactin profiles in male and female turkeys following photostimulation.
J. Proudman, T. Siopes
2005Poultry Science14 citations Open access
Semantic Scholar
Light intensity effects on reproductive performance of turkey breeder hens.
T. Siopes
1991Poultry Science14 citations Open access
Semantic Scholar
Lighting for summer egg production by turkeys: day length and light intensity.
T. Siopes
2007Poultry Science13 citations Open access
Semantic Scholar
Time keeping by the quail's eye: circadian regulation of melatonin production.
C. T. Steele, G. Tosini, T. Siopes, H. Underwood
2006General and Comparative Endocrinology13 citations
Semantic Scholar
EFFECTS OF LIGHT CONDITIONS AND MELATONIN SUPPLEMENTATION ON THE CELLULAR AND HUMORAL IMMUNE RESPONSES IN JAPANESE QUAIL
C. Moore, T. Siopes
200013 citations
Semantic Scholar
Evaluation of cell-mediated immunocompetence in mature turkey breeder hens using a dewlap skin test.
R. Scott, T. Siopes
1994Avian diseases13 citations
Semantic Scholar
Prelay light restriction of turkey hens: daylength versus exposure time.
T. Siopes
1989Poultry Science13 citations Open access
Semantic Scholar
Effect of Light Quality on Egg production of Caged Turkey Hens
R. Pyrzak, T. Siopes
198613 citations Open access
Semantic Scholar

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