Introduction Proliferative enteropathy in pigs is manifested as bloody diarrhea/sudden death in adults and chronic diarrhea/slow growth in younger pigs (1). The disease is caused by infection with Lawsonia intracellularis (LI), an obligate intracellular organism. The economic impact of this disease is most severe in grower and finisher pigs. In the field, the earliest reports of natural LI feca...

In this paper we present two hybrid Particle Swarm Optimisers combining the idea of the particle swarm with concepts from Evolutionary Algorithms. The hybrid PSOs combine the traditional velocity and position update rules with the ideas of breeding and subpopulations. Both hybrid models were tested and compared with the standard PSO and standard GA models. This is done to illustrate that PSOs w...

Improving feed efficiency in dairy cattle could result in more profitable and environmentally sustainable dairy production through lowering feed costs and emissions from dairy farming. In addition, beef production based on dairy herds generates fewer greenhouse gas emissions per unit of meat output than beef production from suckler cow systems. Different scenarios were used to assess the profit...

The goal of railway rolling stock maintenance and replacement approaches is to reduce overall cost while increasing reliability which is multi objective optimization problem a proper predictive maintenance scheduling table should be adequately designed. We propose Breeding Particle Swarm Optimization (BPSO) model based on the concepts of Breeding Genetic Algorithm (GA) operators design th...

The objective of this study is to know the system and practice breeding caprine in Abéché city. was undertaken by investigation town for two months (June July 2021), near 50 households. collected data carried on characteristics households (sex, matrimonial situation level surveyed), principal activities surveyed, mode acquisition objectives breeding, systems techniques breeding. results show th...

In this work, we analyse the chicken production in a poultry network composed of set farms that serves slaughterhouse city Tlemcen. Each farm has house dedicated to breeding, and each three breeding modes: manual semi-automatic automatic breeding. And mode consumes an appropriate energy level depending on degree automation used, which directly affects quality chicken. The objective study is det...

Genomic selection was recently introduced in plant breeding. The objective of this study was to develop genomic prediction for important seed quality parameters in spring barley. The aim was to predict breeding values without expensive phenotyping of large sets of lines. A total number of 309 advanced spring barley lines tested at two locations each with three replicates were phenotyped and eac...

OBJECTIVE To investigate if family head genre-associated education is related to the risk of domiciliary Aedes aegypti larval breeding in a dengue-endemic village of Southern Mexico. MATERIAL AND METHODS A family head was considered to have a low education level if he/she had not completed elementary school. To estimate larval breeding risk within each household, a three-category Maya index w...

Breeding material and registered soybean cultivars in Southeast European countries are strongly linked to Western breeding programs, primarily in the USA and Canada. Th ere is little reliable information regarding the source of germplasm introduction, its pedigree and breeding schemes applied. Consequently, use of these genotypes in making crosses to develop further breeding cycles can result i...

The increasing size of the human population is projected to result in an increase in meat consumption. However, at the same time, the dominant position of meat as the center of meals is on the decline. Modern objections to the consumption of meat include public concerns with animal welfare in livestock production systems. Animal breeding practices have become part of the debate since it became ...