In the context of rotational crossbreeding compare the use of crossbred sires relative to the use...

In the context of rotational crossbreeding compare the use of crossbred sires relative to the use of purebred sires with respect to: (3 pts)

a. hybrid vigor

b. breed complementarity

c. consistency of performance

d. simplicity

e. accuracy of genetic prediction

Compare to all above, a,b,c,d, and e

Expert Solution

Hybrid Vigor in spatial rotations with crossbred sires: Maintain more hybrid vigor than the purebred sires.

Hybrid Vigor in Spatial Rotations with Purebred Sires: Hybrid vigor is maximized in F1, then fluctuates until 7th generation where it levels out.

Breed complementarity in spatial rotations with crossbred sires: Opportunity for breed complementarity.

Breed complementarity in spatial rotations with purebred sires: Purebred sires provide little breed complementarity.

Consistency in spatial rotations with crossbred sires: Potential for higher consistency.

Consistency of performance in spatial rotations with purebred sires: Consistency varies as does breed composition.

Simplicity in spatial rotations with crossbred sires: Varies, but probably more simple than purebred sires.

Simplicity in spatial rotations with purebred sires: Simplicity varies, and it is not feasible for very small herds.

Accuracy of genetic prediction in spatial rotations with crossbred sires: Lack of genetic info is a major concern.

Accuracy of genetic prediction in spatial rotations with purebred sires: Good in systems that use purebred sires.

gladiator answered 1 year ago

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