Consequences of lactation for reproductive parameters of sows and cattle
8 important questions on Consequences of lactation for reproductive parameters of sows and cattle
What can you do at weaning management to prevent sows from lactational related fertility problems?
- Change lactation length
- Lower number of piglets
- Split weaning
- Intermittent suckling
Why research on intermittent suckling in sows?
What can be a reason for ovulation during lactation to fail in sows?
- No follicle growth due to limited pulsatile secretion of LH
- Cystic follicles due to failure to mount LH surge
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Why do cows have a long calving interval?
- Pregnancy takes a long time (270-280 days)
- Show no heat
- Long period to first ovulation
Increase of LH pusatility during resumption of cyclicity of cow dependent on:
- Declining NEB
- Dry matter intake
- BCS at calving
- health status
- calf presence
How does NEB affect fertility in cows?
Which reproductive parameters are affected by lactation in cows?
- Days post partum to first ovulation
- Estrus behaviour
- Irregular oestrus cycles
- Nr of inseminations per calving
- (Embryo mortality)
- Calving interval
Which reproductive parameters are affected by lactation in sows?
- Estrus and ovulation
- Farrowing rate
- Weaning to estrus interval
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