Zobrazeno 1 - 10
of 29
pro vyhledávání: '"M F, Allan"'
Autor:
Larry A. Kuehn, Tara G. McDaneld, John W. Keele, Warren M Snelling, A. L. Van Eenennaam, M. F. Allan, K. L. Weber, Timothy P. L. Smith, R. M. Thallman, Gary L. Bennett
Publikováno v:
Journal of Animal Science. 90:4177-4190
Genomic selection involves the assessment of genetic merit through prediction equations that allocate genetic variation with dense marker genotypes. It has the potential to provide accurate breeding values for selection candidates at an early age and
Autor:
John W. Keele, Calvin L. Ferrell, Merlyn K. Nielsen, Gary L. Bennett, Warren M Snelling, Larry A. Kuehn, R. M. Thallman, Kelsey Rolfe, T. G. Jenkins, Harvey C. Freetly, M. F. Allan
Publikováno v:
Journal of Animal Science. 89:1731-1741
The effects of individual SNP and the variation explained by sets of SNP associated with DMI, metabolic midtest BW, BW gain, and feed efficiency, expressed as phenotypic and genetic residual feed intake, were estimated from BW and the individual feed
Autor:
R. M. Thallman, M. F. Allan, Warren M Snelling, Tad S. Sonstegard, Gary L. Bennett, Tara G. McDaneld, John W. Keele, Larry A. Kuehn, Timothy P. L. Smith
Publikováno v:
Journal of Animal Science. 88:837-848
Chromosomal regions harboring variation affecting cattle birth weight and BW gain to 1 yr of age were identified by marker association using the highly parallel BovineSNP50 BeadChip (50K) assay composed of 54,001 individual SNP. Genotypes were obtain
Publikováno v:
Journal of Animal Science. 87:3556-3568
Long-term genetic selection of cattle for fraternal twins has increased the frequency of twin and triplet ovulations. In contrast, the ratio of fetal numbers to ovulation sites in pregnant females with twin (0.83) or triplet (0.73) ovulations is or =
Autor:
Larry A. Kuehn, Robert A. Cushman, Harvey C. Freetly, M. F. Allan, Warren M. Snelling, Andrea S. Cupp
Publikováno v:
Journal of Animal Science. 87:1971-1980
Depletion of the ovarian reserve is as- sociated with reproductive senescence in mammalian females, and there is a positive relationship between the size of the ovarian reserve and the number of antral follicles on the surface of the ovary. Therefore
Autor:
Warren M Snelling, Larry A. Kuehn, Robert A. Cushman, Sherrill E. Echternkamp, R. M. Thallman, M. F. Allan
Publikováno v:
Journal of Animal Science. 87:46-56
Traditional genetic selection in cattle for traits with low heritability, such as reproduction, has had very little success. With the addition of DNA technologies to the genetic selection toolbox for live- stock, the opportunity may exist to improve
Publikováno v:
Journal of Animal Science. 85:3239-3248
The effects of increasing fetal numbers and their distribution between the left and right uterine horns on calf survival, calf BW at birth and weaning, gestation length, dystocia, and calf sex ratio were evalu- ated for single (n = 1,587), twin (n =
Publikováno v:
Journal of Animal Science. 85:2156-2162
Genetic improvement in reproductive efficiency through selection is difficult because many reproductive traits are binomial and have low heritabilities. Before genetic markers can be generated for fertility in cows, greater characterization of reprod
Publikováno v:
Animal Reproduction Science. 99:93-105
The clock gene Period 1 (Per1) may be a prolificacy gene, because it localized to the mouse oocyte and Per1-null drosophila shed fewer eggs. Because Per1 mapped to a region of mouse chromosome 11 syntenic to bovine chromosome 19 where a quantitative
Autor:
Robert A. Cushman, Larry A. Kuehn, R. M. Thallman, Eduardo Casas, Sherrill E. Echternkamp, Stephen N. White, M. F. Allan, Timothy P. L. Smith
Publikováno v:
Journal of Animal Science. 85:341-347
Continued validation of genetic mark- ers for economically important traits is crucial to estab- lishing marker-assisted selection as a tool in the cattle industry. The objective of the current study was to eval- uate the association of a SNP (T9/T10