Ai manual chapter 13

Dairy Sire Selection ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Sources of ABS Dairy Sires ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Identification of Bull Mothers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Bull Life After Birth ,[object Object],[object Object],[object Object],[object Object],[object Object]

Young Dairy Sire Selection ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Progeny Testing ,[object Object],[object Object],[object Object],[object Object],[object Object]

PT Test Program Requirements ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

PT Program Benefits ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Mechanics of PT System ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Traits of Interest ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Beef Sire Selection ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Using Information to Compare Bulls ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Summary ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Question 1 ,[object Object],[object Object],MACE provided by Interbull It has led to a greater selection intensity of bulls across countries and has provided producers in all countries with greater opportunities for genetic selection.

Question 2 ,[object Object],[object Object],She must have high levels of production, conformation, classification score and PTAs for type, a positive relative ranking in the national selection index, a relative ranking in the ABS proprietary index, and performance from A.I. proven males in the cow family. The bull will be one of the most superior A.I. bulls available, and will have a high PTA.

Question 3 ,[object Object],A Progeny Test herd must have: 1. Good management 2. Good identification 3. Good record keeping 4. Participate in Official DHI Testing Program with records used in USDA Sire Summaries 5. Use semen promptly and randomly 6. Report all calving ease and identification information to DHI

Question 4 ,[object Object],Parent Average is a low reliability estimate of a bulls transmitting ability. It is the average of his parent’s PTAs rather than an average of his offspring's PTAs.

Question 5 ,[object Object],The results are completed approximately four years after the bull starts producing semen. This means the bull will be approximately five-years-old at the end of testing.

Question 6 ,[object Object],[object Object],[object Object],One out of every ten bulls. Yes As the average PTA of cattle in the industry increases the older bulls who no longer meet the average will be culled to make room for new ones.

Question 7 ,[object Object],ABS compares the bulls based upon the following eight measures: EPDs, Pedigree, Phenotype, Individual Performance Information, Ultrasound/Carcass Data, Dam’s Production Record, Cow Family Convenience Traits and Accuracy Values. They then select a variety of bulls that will produce Pasture to Plate™ genetics in different environmental and management situations.

Question 8 ,[object Object],Performance testing will indicate genetic superiority, but progeny testing goes a step further and separates out those superior breeding bulls that pass on their genetic superiority.

Ai manual chapter 13

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Ai manual chapter 13

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