Managing and Monitoring Reproductive Health in cattle 2 (the herd) Flashcards

1
Q

What si the cost of infertility?

A
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2
Q

What are some essential questions for ferility of dairy herds?

A
  • Do cows get served?
  • Are served times correctly?
  • Do serves produce preganncies?
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3
Q

What is our minimum database for dairy herd?

A
  • Calving dates +/- dystocia & assitance
  • service dates +/- sire & operator
  • Pregnancy diagnoses

also:
- Fertility tx
- uterine inflammatory dx & RFM
- Abortions

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4
Q

Describe the targets for inter-service intervals & submission rates?

A
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5
Q

What is the first service or day 24 day submission rate?

A

– Proportion of cows that are served within one oestrus cycle of becoming
eligible for service
– A measure of oestrus detection efficiency
– Target 80%

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6
Q

What is the return service submission rate?

A

– Proportion of PD negative cows that are served within one oestrus cycle of
the previous service

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7
Q

How to assess if serves are timed correctly ?

A

-> Inter-service intervals
-> 18-24, 36-48 day returns ratio

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8
Q

Describe inter-service intervals

A
  • Temporal distribution of services
  • A measure of oestrus detection accuracy
  • Are services falling when expected assuming a cycle length of 18-24 days
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9
Q

Describe the 18-24, 36-48 day returns ratio

A

The ratio of the proportion of returning cows that were served at the first
return to those at the second

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10
Q

Differentials for Inter-service intervals?

A
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11
Q

How do we assess if serves produce preganncies?

A

-> Pregnancy rate (UK) or Conception rate
-> Fertility efficiency or Preg rate (US)

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12
Q

What is the pregnancy or conception rate?

A
  • Proportion of services that result in a positive pregnancy diagnosis
  • Care with synonyms (esp. US preg rate)
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13
Q

What is the ferility efficiency or Preg rate?

A
  • Proportion of eligible cows that conceive every oestrus cycle
  • (%cows eligible for service conceived – InterHerd)
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14
Q

Glossary & targets 1?

A
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15
Q

Glossary & targets 2?

A
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16
Q

What KPIs in Beef suckler fertility?

17
Q

What should BCS be in suckler herds?

18
Q

What three things to assess bull fertility?

A
  • Breeding soundness exam -> General health & reprod tract
  • semen (morphology & motility)
  • Libido (ability to mount & intromission)