Genetic markers in sheep meat breeding

Sheep - Meat RATES OF GENETIC GAIN IN NEW ZEALAND SHEEP

Rates of genetic gain in New Zealand sheep doubled in 140 Dual Purpose flocks, from 30 to 60 cents/yr, and 62 Terminal Sire flocks, from 35 to 60 cents/yr, after establishment of the Sheep Improvement Ltd (SIL) genetic evaluation system in 1999. Further incremental gains of a similar magnitude led to triple the rates of gain pre-SIL after establishment of the Meat & Wool New Zealand Central Pro...

Application of microsatellite markers for breeding and genetic conservation of herds of Pantaneiro sheep

Use of multiple genetic markers in prediction of breeding values.

Genotypes at a marker locus give information on transmission of genes from parents to offspring and that information can be used in predicting the individuals' additive genetic value at a linked quantitative trait locus (MQTL). In this paper a recursive method is presented to build the gametic relationship matrix for an autosomal MQTL which requires knowledge on recombination rate between the m...

Genetic markers and their application in poultry breeding.

The current chicken genetic map contains at least 1,965 loci within 50 linkage groups, and it covers about 4,000 cM. About 235 of these loci have homology with known human or mammalian genes. The remaining loci are anonymous molecular DNA markers, including microsatellites, amplified fragment length polymorphism (AFLP), randomly amplified polymorphic DNA (RAPD), CR1 elements, and others. A thir...

The Norwegian sheep breeding scheme: description, genetic and phenotypic change.

The developments in Norwegian sheep breeding since the early 1990s are reviewed. For the largest breeding population, the Norwegian White Sheep, results are presented for both genetic and phenotypic changes. Of the nine traits that make up the aggregate genotype, the largest gain per year, in per cent of the corresponding phenotypic average, was found for carcass grade (1.66%) and carcass weigh...