TY - JOUR
T1 - A sow replacement model using Bayesian updating in a three-level hierarchic Markov process. I. Biological model
AU - Kristensen, Anders Ringgaard
AU - Søllested, Thomas Algot
PY - 2004
Y1 - 2004
N2 - Several replacement models have been presented in literature. In other applicational areas like dairy cow replacement, various methodological improvements like hierarchical Markov processes and Bayesian updating have been implemented, but not in sow models. Furthermore, there are methodological improvements like multi-level hierarchical Markov processes with decisions on multiple time scales, efficient methods for parameter estimations at herd level and standard software that has been hardly implemented at all in any replacement model. The aim of this study is to present a sow replacement model that really uses all these methodological improvements. In this paper, the biological model describing the performance and feed intake of sows is presented. In particular, estimation of herd specific parameters is emphasized. The optimization model is described in a subsequent paper
AB - Several replacement models have been presented in literature. In other applicational areas like dairy cow replacement, various methodological improvements like hierarchical Markov processes and Bayesian updating have been implemented, but not in sow models. Furthermore, there are methodological improvements like multi-level hierarchical Markov processes with decisions on multiple time scales, efficient methods for parameter estimations at herd level and standard software that has been hardly implemented at all in any replacement model. The aim of this study is to present a sow replacement model that really uses all these methodological improvements. In this paper, the biological model describing the performance and feed intake of sows is presented. In particular, estimation of herd specific parameters is emphasized. The optimization model is described in a subsequent paper
KW - Former Faculty of Life Sciences
U2 - 10.1016/j.livprodsci.2003.07.004
DO - 10.1016/j.livprodsci.2003.07.004
M3 - Journal article
VL - 87
SP - 13
EP - 24
JO - Livestock Science
JF - Livestock Science
SN - 1871-1413
IS - 1
ER -