A horse breeder is interested in making genetic progress for racing the mile. Th

Question

A horse breeder is interested in making genetic progress for racing the mile. The horse breeder has asked you to evaluate three potential selection schemes. Data available for comparing each scheme includes the following:

h^2= 0.35 R= 0.57 ?P= 2.3 sec. ? = 130 sec.

Females are selected in the top 80% of the population with an accuracy based on the average of 3 race records, and the generation interval for females is 5 years. The breeder is considering three alternative schemes for selecting males, and each of these schemes will include selecting males in the top 5% of the population. Please compare each of the three schemes and determine which approach is the most optimal for maximizing genetic progress:

a)Scheme 1: Selection based on a single race record of the individual sire with an estimated generation interval of 6 years

b)Scheme 2: Selection based on the average of 3 races of the individual with a generation interval of 6 years.

Explanation / Answer

Answer

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As the males are chosen from the top 5 percent of the populace unlike females in 80 percent of the inhabitants, they need to experience intense testing practice to maximize inherited progress.

With the given data, the compilation based on records of 5 offspring with 3 races each would be apt to produce sufficient results for monitoring the hereditary progress.

The generation time of 10 years would also help in the psychoanalysis by adding the envonmental impact on the genes and their function.

SO, this scheme be apt to follow in order to opt for males that be able to show maximal inherited progress.

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