Breeding value: The value of an individual as a (genetic) parent. Also – can’t be measured directly, elusive, relative, and an abstract mathematical concept. That sure doesn’t sound very reassuring to base a genetic program on. And yet, through measuring performance, building pedigrees, and using statistical procedures it can be done!
Due to its massive budgets, skilled team members, and worldwide recognition, F1 racing is considered to be the premier form of auto racing. Due to their uniformity, hybrid vigour, and close relation to nucleus stock, F1 pigs are considered to be the premier type of pig for production.
No, sorry, this isn’t the start of a new sci-fi story about Loci and his trusty pal, Zygotes. This is about something much closer to home, yet quite possibly, more fascinating. Inside the core of each cell in every living thing is deoxyribonucleic acid (DNA), the very complex molecule that provides genetic codes such as:
Selection – To have a top performing pig is good. A barn full of top performing pigs is better. A barn full of top performing pigs where each generation outperforms the previous is best. This is the essence of animal breeding: To improve animal populations over time through proper selection and mating. Read More
G x E Interactions – The last AGC Refresher article ended with a warning to consider system interactions when pursuing the “best” animal. The best performing pigs in one environment could also be the worst performing in another. Read More
Pursuing the “Best” Animal – We’ve all heard the terms before: genotype, phenotype, heritability, repeatability, and now genomics. It’s easy to get lost in all this genetic lingo, and thus it can be helpful to get a refresher on the basics and build from there. Read More