Bits of DNA called markers can be useful in determining possible specific performance of a particular trait; these markers are typically located near genes associated with trait heritability. Testing for these markers can facilitate selective breeding. Several well-known benefits of DNA testing include validation of parentage, testing for diseases or genetic defects, and testing for qualitative inherited traits.
Testing for markers and other QTLs of interest can be done at or shortly after birth, reducing the time and cost involved in collecting data from older animals or from carcasses. With each animal tested, DNA testing will provide more information, especially about traits that are difficult to measure or that are sex limited. Such testing also provides greater opportunities to select for traits with genetic antagonisms. (5 pages)
More choices in Livestock & Poultry
Most cow-calf producers don't generate a positive return to equity for the efforts they put forth. The cow-calf sector of the cattle industry is among the most heavily subsidized in agriculture. It is subsidized by off-the-farm income. This sector has limited sources of "on the ranch" revenue: the selling of weaned offspring and the selling […]
This course is designed for youth and collegiate horse judging team members, their coaches, and anyone interested in learning more about horse judging. Learning objectives include understanding the rules for each class, applying the judging guidelines to each class, and learning to articulate placings during oral reasons.
The Teacher Toolkit for the Poultry Evaluation is a bundle designed to provide a Poultry Evaluation CDE team with the curriculum resources they need to be successful.