Testosterone is not stored up. The sperm is viable for at least five days which means that if you breed every other day you'll have plenty of sperm to cover the eggs that will be released. The size of the litter is determined by the amount of eggs that are released, mature, and are fertilized. Also contributing to the size of the litter is the dam's ability to support the number of zygotes that have implanted. I would suggest that you get Canine Reproduction and Whelping by Myra Savant Harris. It is an excellent book and will give you the facts in an easy to understand format. You'll be told alot of things by people who have heard alot of things but never checked their validity. Best to go to the medical facts presented by the experts. Anne Seranne is excellent as well.
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Tami |