Systems approach techniques have been applied to modeling production systems for beef
cattle from the relatively micro‐level of tissues and organs to the macro‐level of farms and …

This work aims to compare different nonlinear functions for describing the growth curves of
Nelore females. The growth curve parameters, their (co) variance components, and …

Predicting infectious disease outbreak impacts on population, healthcare resources and
economics and has received a special academic focus during coronavirus (COVID-19) …

The objective of this study was to determine breed additive and heterosis effects on growth
curves, total milk yield (TMY), calf weaning weight (WW), predicted energy intake (EI), and …

Cow mature weight (MWT) is heritable and affects the costs and efficiency of a breeding
operation. Cow weight is also influenced by the environment, and the relationship between …

Utilizaram-se 14.563 pesagens de 1158 fêmeas da raça Nelore, nascidas entre 1984 e
1995, pertencentes a 10 fazendas, distribuídas em sete estados do Brasil. Com o objetivo …

El análisis del crecimiento con modelos de regresión no lineal (MNL) permite derivar
parámetros (PC) e indicadores (IC) de crecimiento bajo condiciones específicas de …

Fertility of the dairy cow relies on complex interactions between genetics, physiology, and
management. Mathematical modeling can combine a range of information sources to …

The objectives of this study were to describe the growth of young llamas by the application of
four non-linear functions (Gompertz, Logistic, Von Bertalanffy and Brody), evaluate the …

Cow mature weight (MWT) has increased in the past 30 yr. Larger cows cost more to
maintain, but their efficiency—and thus profitability—depends on the production …