decisions, regulation in feedstuff markets, and the consequences of genetic innovations. It is shown that days on feed can … genetic innovations. It is shown that days on feed can increase or decrease with a genetic innovation or other improvement in … weight interval if biological feed efficiency parameters are low over the interval. Keywords: days on feed, energy use …

the optimal number of days on feed and small quality or large yield discounts result in fewer days on feed. Losses … research uses growth models, logistic regression, and an optimization process to determine how the optimal number of days on … feed changes under different grid pricing structures. It was found that large quality or small yield discounts increases …