Describe what would happen to the rate of genetic profress when the components b

Question

Describe what would happen to the rate of genetic profress when the components below are changed.

Change to the key equation (with all other components held constant) Importing semen from outside sources, thus increasing genetic variance in your herd Selecting more animals to be parents of the next generation Keeping your best animals for many generations, thus increasing the generation interval Using inbreeding to fix alleles in the population Consequence on rate of genetic improvement (ABV) Adding genotyping information to an animal's EBV estimate so that our estimates are more accurate

Explanation / Answer

Importing semen from outside sources, thus increasing genetic variance in your heard will increase the rate of genetic improvement as some new alleles of the genes are being added in the gene pool of the population. As a result of which variation will be produced in the progenies that lead to better chance of survival and more adaptibility Selecting more animals to be parents of the next generation will increase the rate of genetic improement as they have more number of variable species with them that they cross with each other to produce better progenies in terms of genetic composition. Keeping your best animals for many generations thus increasing the generation interval will also increase the rate of genetic improvement.

Using inbreeding to fix the alleles in the population will decrease the rate of genetic improvement as it will lead to inbreeding depression. Inbreeding depression refers to the accumulation of lethal genes due to crossing over between genetically related species.

Adding genotyping information to an animals EBV estimate so that our estimate are more accurate will increase the rate of genetic improvement as it will increase the variation in the genome sequence of parental organisms.

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