A half-brother to Mr Thriller and Gaspara, both of whom proved high-class performers for the same stable in seasons past, The Tracey Shuffle is bred to improve upon his two bumper wins when switched to hurdling and could even end up proving smarter than his siblings.
Today, these three populations are endangered by massive crossing with imported breeds to improve their production performance [ 4, 5].
The 'genomic revolution' is changing the way mainstream breeds are selected, and it is of interest to investigate how such methods might help owners of rare breeds to improve their animals.
A breeding program for Buckeye chickens was developed in 2005 by staff members, focusing on using selective breeding to improve the breed and expand its numbers.
They are also commonly crossbred to create new breeds or to improve existing ones, and have been influential in the creation of the Quarter Horse, Standardbred, Anglo-Arabian, and various warmblood breeds.
Inadequate centralized breeding plans to improve local breeds and various plans prescribing crossbreeding with European highly producing breeds, failed.
The Club then turned to the Division of Reproduction at the Swedish University of Agricultural Sciences in Uppsala for help to investigate the nature and cause of the whelping problems of the Boxer breed in order to improve their breeding program and reduce the risk for dystocia in this breed.
They have been crossed with superior breeds in order to improve the economic value of the breeding stock.
Considering that important leather characteristics can be affected when exotic breeds are introduced to improve meat and milk production in native breeds, this study aimed to assess the influence of different goat and sheep genotypes on physico-mechanical characteristics of chromium-tanned leather.
Farmers reduced the huge herds of mostly small and fatty lambs they had been raising, importing breeds from Finland and Denmark to improve the fertility of their ewes and producing larger, leaner lambs.
