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Originally Posted by YorkyKids What she says is NOT scientific fact.....did she produce any research papers.....with NUMBERS of successes and failures......no I have not seen any. You said before you wanted to see RESEARCH on the subject of tinies....but yet you are willing to take the word of a so called specialist with no research studies to point to. I have had a dam have a ruptured uterus on a 6 pound dog......it happens....how would you expect a "tiny dog" would not have this problem.....since genetics are NOT a guarantee....those pups will grow to whatever their genetic dispostiion is. I have friends who have experienced ruptured uterus. One of them had a surviving puppy in the intestinal cavity of the dam....he grew outside the uterus.....the dam ALMOST died.....and of course was spayed.
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Ruptured uterus is a very serious and apparently rare complication in canine whelpings and can be life threatening for the bitch and the pup or pups.
Here is what I found on the frequency and cause of a ruptured uterus in a dog. It is very rare and there are a myriad of causes for it. This study was conducted with 337 bitches with dystocia (abnormal or difficult labor) and none experienced a ruptured uterus. Pitocin can cause a ruptured uterus. Was your friend's dog given pitocin? What size was the bitch?
This study seems to suggest that there is no evidence to prove that a smaller female has any greater chance for a ruptured uterus than a larger one.
I am learning a lot and that is what this is all about. I don't really care who "wins" this debate so to speak or who is right or wrong but to me learning about this subject is what it is all about. If someone finds a scientific study or evidence to back up the statement that it is somehow cruel to breed yorkies under 4 or 5 lbs in weight then we will all be the wiser.
Here is the link to the entire article:
http://www.vri.cz/docs/vetmed/50-2-85.pdf