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pro vyhledávání: '"D. P. Froman"'
Autor:
D P, Froman
Publikováno v:
Journal of animal science. 94(8)
Four premises for rooster sperm preservation were outlined previously. Understanding mitochondrial Ca cycling in terms of whole-cell Ca flux was one premise. The present work tested the hypothesis that sperm mitochondria can be damaged by intracellul
Although much attention has been recently directed to sexual selection arising after insemination from sexual promiscuity, little is known about the mechanisms determining reproductive success after insemination, and the way these mechanisms interact
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7c16ce3427e8d9a66da28b0a43b9f85
https://doi.org/10.1038/sj.hdy.6800014
https://doi.org/10.1038/sj.hdy.6800014
Autor:
D P, Froman
Publikováno v:
Journal of animal science. 93(2)
Four premises for sperm preservation were previously outlined. The present work tested 2 of these. The first premise was that sperm mobility phenotype affects procedural efficacy. Random bred roosters were phenotyped with the sperm mobility assay. A
Autor:
J. D. Kirby, S.P. Lerner, T S Sonstegard, Annie M. Donoghue, A N Crouch, D P Froman, Laura M. King, Daniel J. Donoghue
Publikováno v:
British Poultry Science. 44:498-504
1. Commercial reproduction of turkeys relies on pooling of semen from multiple males for inseminations. Understanding how sperm characteristics influence paternity under commercial breeding conditions is important to improving production efficiency.
Autor:
D P, Froman
Publikováno v:
Journal of animal science. 92(2)
The primary goal of this work was to test whether the sperm mobility assay could be used to derive mathematical relationships from which predictions could be made about sperm cell function. A precondition was random sampling from a pool of sperm. Thi
Autor:
D P, Froman, D D, Rhoads
Publikováno v:
Journal of animal science. 91(2)
Rooster semen is an effluent from paired reproductive tracts. Each tract includes a testis, epididymis, and deferent duct. Upon ejaculation, efficacy of sperm propulsion varies among roosters. This phenotype is sperm mobility, that is, the movement o
Publikováno v:
Biology of Reproduction. 48:393-402
Protease and basic amidase activity was found in the seminal plasma of the domestic turkey. Amidase activity, measured through use of N-alpha-benzoyl-DL-arginine-p-nitroanilide-HCL (BAPNA), was 23-28 times greater for turkey than for guinea fowl or c
Publikováno v:
Reproduction. 95:79-86
Male fowl were immunized intravenously (i.v.) or intramuscularly (i.m.) with spermatozoa to assess the effects of immunity to spermatozoa on fertility. Histological and immunofluorescence evaluations of testis and ductus deferens tissues after 24 wee
Autor:
J. D. Kirby, D P Froman
Publikováno v:
Reproduction. 91:125-130
Sperm metabolism was determined via reduction of 2-(p-iodophenyl)-3-(p-nitrophenyl)-5-phenyl tetrazolium chloride (INT) to formazan. When the reaction mixture contained cyanide, which blocks cytochrome oxidase and thus maximizes intermediate electron
Sperm mobility: deduction of a model explaining phenotypic variation in roosters (Gallus domesticus)
Publikováno v:
Biology of reproduction. 74(3)
In previous work, variation in sperm mobility phenotype was attributed to the proportion of ejaculated fowl sperm containing dysfunctional mitochondria. In the present work, latent mitochondrial dysfunction was inferred from patterns of sperm egress