Mathematical models of sow reproduction

Effects of sow, boar, and semen traits on sow reproduction

Effect of supplemental niacin on sow reproduction and sow and litter performance.

In this study the effects of supplemental crystalline niacin on sow reproduction and sow and litter performance were evaluated using 240 litters produced by 67 sows. A basal 12.80% CP corn-soybean meal-oat diet was supplemented with 0 or 33 mg of crystalline niacin/kg during gestation and lactation. The sows were grouped to equalize initial BW and parity among the two treatment groups. Each sow...

A mathematical model for designing and sizing sow farms

A semi-Markov model and its application for designing and sizing swine facilities are presented. Swine production is becoming more and more specialised. Hence the sizing of a farm producing piglets is the main strategic decision of farmers who invest in sow production, since a farm comprises different facilities with different possible sizes. The classical approach is simple but the resulting d...

Simulation of Pedestrian Dynamics with Macroscopic and Microscopic Mathematical Models

Here, we collect two parts of a research project on the pedestrian flow modeling. Rapid growth in the volume of public transport and the need for its reasonable, efficient planning have made the description and modeling of transport and pedestrian behaviors as important research topics in the past twenty years. First, we present a macroscopic model for the pedestrian flow based on continuum mec...

Energy metabolism and leptin: effects on neuroendocrine regulation of reproduction in the gilt and sow.

It is well established that reproductive function is metabolically gated. However, the mechanisms whereby energy stores and metabolic cues influence appetite, energy homeostasis and fertility are yet to be completely understood. Adipose tissue is no longer considered as only a depot to store excess energy. Recent findings have identified numerous genes, several neurotrophic factors, interleukin...