Wayne Scott Pitchford

Incorporating LASSO effects into a mixed model for quantitative trait loci detection (2007)

Foster, Scott David, Verbyla, Arunas Petras, Pitchford, Wayne Scott

The identification of quantitative trait loci (QTL) can be viewed as a subset selection problem. In a simulation study the least absolute selection and shrinkage operator (LASSO) is shown to be a...

Effect of missing data on the estimate of average daily feed intake in beef cattle (2004)

Hebart, Michelle L., Pitchford, Wayne Scott, Arthur, P. F., Archer, J. A., Herd, R. M., Bottema, Cynthia Denise Klemme

The effect of missing feed intake records on the estimate of feed intake in cattle over a 70-day test period was studied. Two datasets, containing several cattle breeds at different ages, were...

QTL for feed intake and associated traits (2002)

Pitchford, Wayne Scott, Hebart, Michelle L., Kister, A. J., Bottema, Cynthia Denise Klemme

The document attached has been archived with permission from the World Congress on Genetics Applied to Livestock Production.

Evidence of non-additive genetic effects on predicted carcass composition (2002)

Afolayan, R. A., Bottema, Cynthia Denise Klemme, Pitchford, Wayne Scott

The document attached has been archived with permission from the World Congress on Genetics Applied to Livestock Production.

Additive effects of two growth QTL on cattle chromosome 14 (2002)

Morris, C. A., Pitchford, Wayne Scott, Cullen, N. G., Hickey, S. M., Hyndman, D. L., Crawford, A. M., ...

The document attached has been archived with permission from the World Congress on Genetics Applied to Livestock Production.

Mapping quantitative trait loci for feed efficiency in mice - a preliminary analysis (2001)

Hebart, Michelle L., Bottema, Cynthia Denise Klemme, Pitchford, Wayne Scott

Mice from high and low feed efficiency selection lines were used in an F₂ mapping design. The mouse lines differed in feed intake by approximately 25% with only small differences in growth and body...