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19 Cards in this Set
- Front
- Back
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What is flushing?
What is its purpose? |
Practice of feeding goats extra energy 30 days before and after introduction of a buck.
PURPOSE: weight gain which leads to improved fertility and ↑ kidding % |
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What are the 2 most common methods of flushing?
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1. "Feed or green flush": move goat to lush pasture
2. Feed ↑ energy supplement (corn or cottonseed) |
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What is the recommended feeding for flushing?
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1/2 lb./head/day
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What is the difference between ESTRUS HEAT and general HEAT?
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ESTRUS: time when doe is preparing to cycle and release egg to be fertilized.
HEAT: time period before the release of the egg, during the cycling, and a little after. |
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What are some signs that a doe is in heat?
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- Wagging tail at sight of buck
- Intense interest in buck (sniffing, rubbing, following) - Loud calling or bleating - Slightly swollen/red vagina - ↑ urination (especially near buck) - Mounting other does - Vaginal discharge |
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How long does ESTRUS (heat) last?
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12 - 48 hours
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What is standing heat and how long does it last?
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- Time when doe stands firm for buck to mount her
- Approx. 24 hours - Doe will run away from buck is she is NOT in heat |
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What is a good sign that a doe is pregnant?
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She won't come back into heat.
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What does BCS refer to?
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Body Condition: fleshiness of the animal
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What are characteristics of a well-conditioned (good BCS) goat?
Poor conditioned? |
- GOOD: smooth ribs, backbone is not protruding and is level with the loin.
- POOR: angular ribs, visible backbone, sharp edges of loins and easily felt. |
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What is the buck effect?
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Strategic management tool used to bring does into synchronized estrus (standing heat)
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How is the buck effect accomplished?
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- Buck must be isolated from does for at least 30 days before reintroduced.
- Bucks release an odor from musk glands that induces estrus in does. |
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What is the response to the buck effect influenced by?
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- Sexual aggressiveness of buck
- BCS of does |
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What is the purpose of a Breeding Soundness Exam (BSE) and what is it based on?
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- Predicts furture reproductive performance
- Based on: ... history ... libido ... mating ability ... physical exam ... semen eval |
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When should a BSE be performed?
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- Pre-purchase
- Prior to breeding season - Investigation of existing problem |
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What are some methods of semen collection?
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- Artificial vagina
- Electroejaculator |
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What is important to keep in mind when monitoring sperm motility?
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Sperm should be swimming towards a destination, NOT circling.
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What makes a buck desirable for breeding?
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> 70% on BSE
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How is sperm evaluated in a BSE?
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- Morphology
- Motility - Concentration |
