Animal breeding traditionally has entailed devising means to apply quantitative and population genetic theory to increase productive capacity of livestock. A highly developed and successful industry has been built on foundations established by academic animal breeders. Recent developments in related sciences such as reproductive biology, molecular biology, cellular biology, and cytogenetics off...

Genetic evaluations within and across populations (countries, breeds, herds) allow ranking on estimated genetic merit and selecting breeding individuals across populations. Selection within and across populations (combined selection) should by definition always be as good as, or better than, within-population selection, the limiting case. The advantage depends on the sizes of the populations, t...

Genetic improvement of pig performance is a primary tool in enhancing profitability in pig enterprises. The first step of genetically improving livestock is the development of a breeding objective which combines all economically important traits that can be improved by selection. These traits are given economic values that are defined as the increase in profit with a single unit change in each ...

Achieving a consistently successful A.I.-breeding program in a cow-calf operation requires attention to those heifers and cows not having normal estrous cycles (cycling) at the beginning of the breeding season. Because so many factors contribute to whether breeding females are cycling, including weather patterns, nutrition (availability of native forages or stored feeds), age or days since calv...

The Arabian Horse is one of the most valued breeds in an international and historical context and has been involved in the formation of many other horse breeds. Since 2005, the Spanish Arabian Horse Breeder Association (AECCA) has developed a breeding program aimed at improving both conformation traits and endurance performance. While this selection depends on individual breeders, a population ...

A scaled-down test section representative of an Outboard Segment manifold the Water-Cooled Lithium Lead Breeding Blanket for European DEMO has been designed installation and in a high- mass flow branch W-HYDRA facility, under construction at premises ENEA Brasimone Research Center. The should confirm repartition recently computed different breeding units on full-scale manifold, validating same ...

We propose a computational model of mating strategies for controlled animal breeding programs. A mating strategy in a controlled breeding program is a heuristic with some optimization criteria as a goal. Thus, it is appropriate to use the computational tools available for analysis of optimization heuristics. In this paper, we propose the first discrete model of the controlled animal breeding pr...

BACKGROUND Milk proteins genes have been the focus of the researches as the candidate target genes that play a decisive role when animal breeding is desired. OBJECTIVES In the present study, the transcriptional levels of Beta-lactoglobulin (BLG) and Alpha S1 casein (CSN1S1) genes were investigated during prenatal, milking and drying times in mammary glands of the Adani goats which showed high...