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Can you convince sheep to lamb more than once a year?

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Heifer_in_Tank

Sheep normally only breed in the fall due to the photoperiodic effect, where changes in daylight impact hormone levels and estrus cycles. However, farmers can override this natural cycle by controlling lighting inside barns or with outdoor lamps, allowing for 1.5 gestations per year instead of one. This results in more lambs and greater profits for producers.

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Can you convince sheep to lamb more than once a year?
Why Do Sheep Only Breed in Fall???
Ewe not as in You! • Ewe = Adult, female sheep • Ram = Adult, intact male sheep • Wether = Castrated male sheep • Lamb = Juvenile, male or female sheep
Natural Sheep Facts • Onset of puberty is first fall • Estrous cycle is 16.5 days • Standing heat (Estrus) lasts 1-2 days • Gestation period is 150 days
So back to the question… • This is due to the PHOTOPERIODIC EFFECT • The photo-peri-what effect?
Due to Hormone/Daylight Interaction
Edmonton Latitude Dependent Temperate Equator Tropical Temperate
How do we over ride nature? • Control lighting inside a barn
How do we over ride nature? • Control lighting outside with high intensity flood lamps
How can we benefit from this? • Aggressive management can increase the number of gestations per year to 1.5 • More lambs=more money for the producer
Do Humans Show Characteristics of the Photoperiodic Effect? • When are your children born??
Can you convince sheep to lamb more than once a year?
Why Do Sheep Only Breed in Fall???
Ewe not as in You! • Ewe = Adult, female sheep • Ram = Adult, intact male sheep • Wether = Castrated male sheep • Lamb = Juvenile, male or female sheep
Natural Sheep Facts • Onset of puberty is first fall • Estrous cycle is 16.5 days • Standing heat (Estrus) lasts 1-2 days • Gestation period is 150 days
So back to the question… • This is due to the PHOTOPERIODIC EFFECT • The photo-peri-what effect?
Due to Hormone/Daylight Interaction
Edmonton Latitude Dependent Temperate Equator Tropical Temperate
How do we over ride nature? • Control lighting inside a barn
How do we over ride nature? • Control lighting outside with high intensity flood lamps
How can we benefit from this? • Aggressive management can increase the number of gestations per year to 1.5 • More lambs=more money for the producer
Do Humans Show Characteristics of the Photoperiodic Effect? • When are your children born??
Can you convince sheep to lamb more than once a year?

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Can you convince sheep to lamb more than once a year?

  • 1. Can you convince sheep to lamb more than once a year?
  • 2. Why Do Sheep Only Breed in Fall???
  • 3. Ewe not as in You! • Ewe = Adult, female sheep • Ram = Adult, intact male sheep • Wether = Castrated male sheep • Lamb = Juvenile, male or female sheep
  • 4. Natural Sheep Facts • Onset of puberty is first fall • Estrous cycle is 16.5 days • Standing heat (Estrus) lasts 1-2 days • Gestation period is 150 days
  • 5. So back to the question… • This is due to the PHOTOPERIODIC EFFECT • The photo-peri-what effect?
  • 7. Edmonton Latitude Dependent Temperate Equator Tropical Temperate
  • 8. How do we over ride nature? • Control lighting inside a barn
  • 9. How do we over ride nature? • Control lighting outside with high intensity flood lamps
  • 10. How can we benefit from this? • Aggressive management can increase the number of gestations per year to 1.5 • More lambs=more money for the producer
  • 11. Do Humans Show Characteristics of the Photoperiodic Effect? • When are your children born??
  • 12.
  • 13. Can you convince sheep to lamb more than once a year?
  • 14. Why Do Sheep Only Breed in Fall???
  • 15. Ewe not as in You! • Ewe = Adult, female sheep • Ram = Adult, intact male sheep • Wether = Castrated male sheep • Lamb = Juvenile, male or female sheep
  • 16. Natural Sheep Facts • Onset of puberty is first fall • Estrous cycle is 16.5 days • Standing heat (Estrus) lasts 1-2 days • Gestation period is 150 days
  • 17. So back to the question… • This is due to the PHOTOPERIODIC EFFECT • The photo-peri-what effect?
  • 18. Due to Hormone/Daylight Interaction
  • 19. Edmonton Latitude Dependent Temperate Equator Tropical Temperate
  • 20. How do we over ride nature? • Control lighting inside a barn
  • 21. How do we over ride nature? • Control lighting outside with high intensity flood lamps
  • 22. How can we benefit from this? • Aggressive management can increase the number of gestations per year to 1.5 • More lambs=more money for the producer
  • 23. Do Humans Show Characteristics of the Photoperiodic Effect? • When are your children born??