Breeding cows generally concentrate on three chief procedures of choice of the creature. All these are by progeny, by household, and from pedigree.
As its name implies progeny choice concentrates on the true progeny or descendants of particular creatures with known qualities. It may be helpful when choosing traits like milk yield or robustness to a particular disease.
Its fundamental drawback is that it is sometimes a slow process requiring careful breeding to ascertain the particular quality of specific offspring. You can visit https://www.lic.co.nz/products-and-services/automation/ for more info about Breeding.
The only way around that is to devote a substantial quantity of money purchasing the particular traits you need instead of waiting to create them on your cattle.
Family selection concentrates on assessing the various qualities of relatives instead of progeny and as this is a quicker method of choice compared to progeny. Its value lies in having the ability to accurately gauge restricted traits like choosing the best men from which to strain.
Pedigree choice tends to concentrate on the authentic quality of critters ancestors instead of the particular creature. It can be a helpful method when wanting to pick those traits that are proven to possess high heritability.
There's also an option to be made between inbreeding and outbreeding. Inbreeding means crossing closely associated critters which will allow a particular attribute to be intensified or mended.
Outbreeding tends to improve the variability in a herd and may result in new attributes or combinations of attributes.