Review of mathematical models for sow herd management

Mathematical Optimizationg models for Air Traffic Flow Management: A review

Congestion problems are becoming increasingly acute in many European and American airports and air sectors. To protect Air Traffic Control (ATC) from overload a planning activity called Air Traffic Flow Management (ATFM) tries to anticipate and prevent overload and limit resulting delays. When the traffic expects to exceed the airport arrival and departure capacities or the airsector capacity a...

Management Practices to Reduce the Impact of Seasonal Infertility on Sow Herd Productivity

During summer and early fall, many sow farms experience a variety of reproductive problems, such as, anestrus, extended weaning-to-estrus intervals, poor conception rates, higher embryo mortality rates and low farrowing rates. This phenomenon is commonly referred to as “seasonal infertility” and can also be present in boar studs, where the result is lower semen output and lower semen quality. M...

Assessment of sow mortality in a large herd

Causes of sow and gilt death were appraised with postmortem examinations for 20 weeks (May to October) in a 5200-sow herd experiencing higher than expected sow mortality. Complete necropsy fi ndings and data are provided for 107 females. The locomotor, gastrointestinal, reproductive, and urinary systems were affected with lesions presumably causing death; however, lesions affecting the respirat...

Mathematical Models for Microbial Kinetics in Solid-State Fermentation: A Review

  Context:In this review, we discuss empirical and stoichiometric models, which have been developed recently in SSF processes and the influence of environmental conditions on the variables of these models. Additionally, new studies on modeling of product formation are also mentioned. <span style="color: windowtext...

Mathematical Models for Financial Management By MERTON