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- Danfær, A., et al. Show all 5 Authors
- Journal of animal science 2010 v.88 no.7 pp. 2361-2372
- swine; energy metabolism; nutrient requirements; energy requirements; animal growth; liveweight gain; metabolizable energy; nutrient partitioning; prediction; growth models; simulation models; nonlinear models; equations; protein deposition; lipids; body fat; animal tissues; body weight; multivariate analysis
- ... Simultaneous equations have become increasingly popular for describing the effects of nutrition on the utilization of ME for protein (PD) and lipid deposition (LD) in animals. The study developed a multivariate nonlinear mixed effects (MNLME) framework and compared it with an alternative method for estimating parameters in simultaneous equations that described energy metabolism in growing pigs, an ...
- Danfær, A., et al. Show all 4 Authors
- Journal of animal science 2010 v.88 no.2 pp. 638-649
- estimation; females; swine feeding; litters (young animals); optimal nutrition; equations; males; variance; gender differences; probability analysis; liveweight gain; growth models; validity; nutrient requirements; nonlinear models; biological development; animal age; prediction; swine
- ... Growth functions have been used to predict market weight of pigs and maximize return over feed costs. This study was undertaken to compare 4 growth functions and methods of analyzing data, particularly one that considers nonlinear repeated measures. Data were collected from an experiment with 40 pigs maintained from birth to maturity and their BW measured weekly or every 2 wk up to 1,007 d. Gomper ...