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AI in Dairy Cows

Which definition fits artificial insemination?

An egg is fertilised in a test tube and then inserted into the reproductive tract

Semen is injected directly into the female reproductive tract

Medication that can enhance fertility

The preservation in liquid nitrogen of embryos

How much of the gross income of dairy farms comes from production?

76%

55%

94%

88%

How many days postpartum are dairy cows traditionally inseminated again?

20-30

50-60

80-90

100-110

More than 9% of Holsteins, one of the most bred dairy cow species, can be traced back to … bull specimens.

Two

Three

Four

Five

What are health risks mainly associated with an increasing inbreeding coefficient for Holsteins?

Kidney Diseases

Brain Atrophy

Decreased Fertility/Pregnancy rates

Familial encephalomyelitis

Which modern technique has been proved to be the most effective methods to increase fertility rate under heat stress?

Genetic improvement technology

Artificial insemination

In vitro fertilization

Embryo transfer

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