Zobrazeno 1 - 10 of 50 pro vyhledávání: '"H. Allen Tucker"'
2
Effects of Photoperiod on Mammary Development and Concentration of Hormones in Serum of Pregnant Dairy Heifers
Autor: S. A. Zinn, L.T. Chapin, J.A. Newbold, H. Allen Tucker
Publikováno v: Journal of Dairy Science. 74:100-108
Beginning at 128 d of pregnancy, Holstein heifers were exposed to 16 h light, 8 h dark (long days; n = 10) or 8 h light, 16 h dark (short days; n = 10) until 35 d before calving when they were killed. Photoperiod had no effect on weight or proportion
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5a2388c9f1a194c6a2e5257f9d26e3c
https://doi.org/10.3168/jds.s0022-0302(91)78149-6
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3
Influence of Melatonin on Mammary Gland Growth: In Vivo and In Vitro Studies
Autor: H. Allen Tucker, Emilio J. Sánchez-Barceló, M. D. Mediavilla
Publikováno v: Experimental Biology and Medicine. 194:103-107
Our objective was to determine whether melatonin influenced mammary growth in response to mammogenic hormones. Prepubertal female BALB/c mice were injected for 9 days with 1 microgram of 17 beta-estradiol and 1 mg of progesterone or 17 beta-estradiol
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97fe31afcc4e0e958fb4139d3febe91b
https://doi.org/10.3181/00379727-194-43063
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4
Estrogen and androgen elicit growth hormone release via dissimilar patterns of hypothalamic neuropeptide secretion
Autor: Robert A. Merkel, William J. Enright, Hazem A. Hassan, H. Allen Tucker
Publikováno v: Steroids. 66(2)
The dimorphic pattern of growth hormone (GH) secretion and somatic growth in male and female mammals is attributable to the gonadal steroids. Whether these hormones mediate their effects solely on hypothalamic neurons, on somatotropes or on both to e
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53bc72ed73a6f76fdb7c8f54bd06badd
https://pubmed.ncbi.nlm.nih.gov/11146085
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5
Neuroendocrine Regulation of Lactation and Milk Ejection
Autor: H. Allen Tucker
Publikováno v: Neuroendocrinology in Physiology and Medicine ISBN: 9781617371530
Milk is a secretion of the mammary gland that supplies all of the necessary nutrients for survival of mammalian species. Secretion of milk, or lactation, is the final stage of the reproductive cycle and is completely dependent on secretion of numerou
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b6eebc7df1749472906ef060d5c80f27
https://doi.org/10.1007/978-1-59259-707-9_10
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9
Milking, Thyrotropin-Releasing Hormone and Prostaglandin Induced Release of Prolactin and Growth Hormone in Cows
Autor: H. Allen Tucker, E. M. Convey, D. T. Vines, J. N. Stellflug
Publikováno v: Experimental Biology and Medicine. 149:462-469
Within 30 min of starting continuous ivy infusion of 333 mug thyrotropin-releasing hormone (TRH)/hr into 12 cows, serum prolactin (PRL) increased more than 10-fold and growth hormone (GH) increased 2.6- to 4-fold above basal concentrations. Constant
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d03654f54b540fa0e826f72def9b831e
https://doi.org/10.3181/00379727-149-38828
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10
Growth Hormone, Glucocorticoid and Thryoxine Response to Duration, Intensity and Wavelength of Light in Prepubertal Bulls2
Autor: J. S. Kesner, H. Allen Tucker, Kay B. Leining
Publikováno v: Journal of Animal Science. 51:932-942
Effects of duration, intensity and wavelength of light on growth hormone (GH), glucocorticoids, thyrotropin (TSH) and thyroxine (T4) concentrations in serum were determined in prepubertal bulls maintained at 18 to 22 C and 60 tp 70% relative humidity
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fda9b80efeea499c6299432824eab702
https://doi.org/10.2527/jas1980.514932x
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