Zobrazeno 1 - 10 of 26 pro vyhledávání: '"Dwane R. Zimmerman"'
1
Plasma gonadotropins and ovarian hormones during the estrous cycle in high compared to low ovulation rate gilts1
Autor: Dwane R. Zimmerman, George Vatzias, Robert V. Knox, Clyde H. Naber
Publikováno v: Journal of Animal Science. 81:249-260
Mature gilts classified by low (12 to 16 corpora lutea [CL], n = 6) or high (17 to 26 CL, n = 5) ovulation rate (OR) were compared for plasma follicle-stimulating hormone (FSH), luteinizing hormone (LH), progesterone, estradiol-17beta, and inhibin du
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::768a4f33e60594ebdcd9415d436bd887
https://doi.org/10.2527/2003.811249x
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2
Effect of administration of porcine follicular fluid to gilts during the luteal phase of the estrous cycle on plasma gonadotropins, follicular development, and ovulation rate
Autor: Dwane R. Zimmerman, Robert V. Knox
Publikováno v: Journal of Animal Science. 71:1546-1551
Eighty gilts were assigned randomly to receive twice daily i.v. injections of either 5 mL of steroid-reduced porcine follicular fluid (pFF) or .15 M saline (S) to evaluate the effects of suppression of FSH before, during, and 1 d after induced luteol
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5b36897099d6d0706cd388526cad18f
https://doi.org/10.2527/1993.7161546x
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3
Follicle-stimulating hormone (FSH) during the secondary surge in gilts as influenced by administration of porcine follicular fluid (pFF)
Autor: Dwane R. Zimmerman, Robert V. Knox, C H Naber
Publikováno v: Journal of animal science. 69(2)
The effect of volume and frequency of administration of porcine follicular fluid (pFF) on FSH concentration was determined in mature gilts during the period of the secondary FSH surge (d 0 to 5; d 0 = onset of estrus) and following withdrawal of pFF
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ddd54c14e89521ffc71dc219f48e3247
https://pubmed.ncbi.nlm.nih.gov/1901847
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4
Increased plasma follicle-stimulating hormone concentrations in prepubertal gilts from lines selected for increased number of corpora lutea
Autor: K A Leymaster, Dwane R. Zimmerman, T H Wise, J. Joe Ford, Ronald K. Christenson
Publikováno v: Journal of Animal Science. 79:1877
Plasma follicle-stimulating hormone (FSH) was evaluated in gilts from two studies in which ovulation rate was increased through direct selection for number of corpora lutea (CL) to determine whether selection for ovulation rate affected FSH secretion
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afc21cab661f9b6d47d2703b1ec413fa
https://doi.org/10.2527/2001.7971877x
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5
Direct responses to selection for increased litter size, decreased age at puberty, or random selection following selection for ovulation rate in swine
Autor: T. E. Long, Dwane R. Zimmerman, Rodger K. Johnson, William R. Lamberson
Publikováno v: Journal of Animal Science. 69:3129
Nine generations of selection for high ovulation rate were followed by two generations of random selection and then eight generations of selection for increased litter size at birth, decreased age at puberty, or continued random selection in the high
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::decb079120d0014a059a929a4d4fbea7
https://doi.org/10.2527/1991.6983129x
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8
Pubertal Development of the Boar: Testosterone, Estradiol-17β, Cortisol and LH Concentrations before and after Castration at various Ages2
Autor: Ronald K. Christenson, J. Joe Ford, Dwane R. Zimmerman, R. D. Allrich
Publikováno v: Journal of Animal Science. 55:1139-1146
Forty-eight Landrace x Duroc boars were assigned at weaning to eight castration ages (40, 70, 100, 130, 160, 190, 220 and 250 d). Catheterization of the external jugular vein was performed 5 d before scheduled castration. Blood samples were collected
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5a285c6d1b248033b087137ed5d1d41d
https://doi.org/10.2527/jas1982.5551139x
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