What is a good (useful) mathematical model in animal science? For models constructed for
prediction purposes, the question of model adequacy (usefulness) has been traditionally …

Abstract The National Animal Nutrition Program “National Research Support Project 9”
supports efforts in livestock nutrition, including the National Research Council's committees …

In the temperate climate of New Zealand, animals can be grazed outdoors all year round.
The pasture is supplemented with conserved feed, with the amount being determined by …

Dairy cow responses to dietary crude protein (CP) may depend on stage of lactation. The
primary objective of this study was to evaluate the effects of 4 concentrations of dietary CP …

In recent years, it has become increasingly clear that understanding nutrient partitioning is
central to a much broader range of issues than just being able to predict productive outputs …

The Molly cow model represents nutrient digestion and metabolism based on a mechanistic
representation of the key biological elements. Digestive parameters were derived ad hoc …

The high energetic demands and metabolism of amino acids (AA) within the lactating
mammary gland have been ascribed to the requirements for milk component synthesis and …

A mechanistic lactation model, based on a theory of mammary cell proliferation and cell
death, was studied and compared to the equation of Wood (1967). Lactation curves of British …

Numerous empirical and mechanistic models predicting methane (CH 4) production are
available. The aim of this work was to evaluate the Molly cow model and the Nordic cow …

The model of RL Baldwin predicts various aspects of digestion and metabolism in the cow
including nutrient partitioning between milk and body stores. However, prediction bias has …