Is this Fact or just Theory?? - Page 2

I would never breed a female more than 2 times, 1 day appart (aka day 12 & 14).  Females can release eggs for several days, spanning as long as a week...each canine egg is individually fertalized thus it is possible to have eggs fertalized on the first breeding and the last breeding.   The litter will be whelped when the oldest puppies are ready, thus it is possible to get mature and premature puppies from a litter if a female was bred over a long period of time.  My last litter produced 9 puppies from one tie, the litter before that 6 puppies from one tie. 

I would never breed a female more than 2 times, 1 day appart (aka day 12 & 14).  Females can release eggs for several days, spanning as long as a week...each canine egg is individually fertalized thus it is possible to have eggs fertalized on the first breeding and the last breeding.   The litter will be whelped when the oldest puppies are ready, thus it is possible to get mature and premature puppies from a litter if a female was bred over a long period of time.  My last litter produced 9 puppies from one tie, the litter before that 6 puppies from one tie. 

Yes Don, it would make Xandor very happy but at almost 10, it would probably kill him.  At least he'd die with a smile on his face.

That reminds me of a good story I heard.

They shipped in a super male to breed to a few females.  They were about to breed one of them and had the male in the yard.  He was awesome!  He was grabbing huge rocks, carrying them and playing with excitement.  The dog was very powerful and you could see what his puppies would bring.  The dog was running around, jumping and on return with one of the boulders he was carrying, he died.  Naturally, I asked if they manually extracted his manhood.

Just a side - similar to following the rationale of spacing things out -  when we were planning our human family we took the "every other day" approach

Got pregnant first month each time (kids birthdays, btw, are Dec 10 and Dec 17, that is how close.....................)

There is a lot of misinformation going around.  Here is some information that might help you Agar....

Entire transcript of this is here with more topics covered than I posted here:  http://www.doghobbyist.com/CanineRepro.html

Canine Reproduction
With Dr. Robert Hutchison

Question: Progesterone

DrHutch: I'm amazed at looking at the questions that were posted on the board, how much misunderstanding of progesterone there is
DrHutch: both by breeders and by veterinarians
PHFasDog: To ask a question, just click on "AskDrHutch: " in the right hand column, type your question, and hit "enter."
DrHutch: In this day and age, with the importance of progesterone, it's amazing how people misunderstand the significance of progesterone both on timing the ovulation
DrHutch: and on maintaining the pregnancy
DrHutch: in a perfect world the progesterone rises to 2-3 nanograms and tells the brain that the follicle is ripe and ready to ovulate and then the
DrHutch: brain releases the lutenizing hormone, the LH, which causes ovulation
DrHutch: unfortunately we were told that you only needed to know when it rose to 2-3 nanograms
DrHutch: unfortunately we were told that you only needed to know when it rose to 2-3 nanograms
DrHutch: which used to be called the initial rise
DrHutch: we have now found that not all follicles especially in bitches under stress, immediately respond to the LH
DrHutch: so for progesterone testing to mean anything one has to test their bitch until she goes above 5 nanograms
DrHutch: the day the progesterone rises above 5 nanograms IS the day of ovulation
DrHutch: so all breeding is based on the day of ovulation
DrHutch: and how long we expect the semen to live
DrHutch: fresh semen will live 5, 6, 7 days in a bitch
DrHutch: that's why we used to be able to breed by vaginal smears, color of the discharge, and day of the cycle
DrHutch: things that made us feel scientific but probably mattered very little
DrHutch: so once the egg is ovulated it is an immature egg
DrHutch: that takes 48 hours to mature
DrHutch: then we have about 36 hours when the egg is fertilizable
DrHutch: so if we're using fresh semen, we can breed the day of, or the day after, she ovulates and expect
DrHutch: the semen to live until the egg is ready to be fertilized
DrHutch: however with frozen semen which only lives for about 12 hours in the uterus
DrHutch: we have to use it when the egg IS ready for fertilization
DrHutch: which is why we breed 72 hours after the bitch ovulates with frozen semen
DrHutch: fresh cooled probably lives about 48 hours, so we use it 2 days after she ovulates
DrHutch: so the timing is based more on how long we expect the semen to live, rather than the day of ovulation

A question on male fertility: When you have two bitches in season at the same time that need to be bred to the same male, what would be the optimum breeding intervals to cover both?

DrHutch: A normal male has a sperm reserve of semen he made months ago, so the average male could be used twice in one day
DrHutch: or could be used 4-5 days in a row without doing any damage
DrHutch: but since it takes a male around 55 days to make a sperm cell
DrHutch: if you overuse your male, you are putting yourself out of breeding commission for a minimum of 2-3 months
DrHutch: there is no reason to be breeding a bitc

Continued from above...

DrHutch: there is no reason to be breeding a bitch 5, 6, 7 days in a row
DrHutch: because the length of semen life is multiple days, and with progesterone testing
DrHutch: we should be able to pinpoint exactly when the bitch is ready to be bred

I remain dubious.

My male knows when she's ready.  Thanks, but no thanks, Dr. Bob.

LOL....  I was gonna check into Dr. Bob but when I got to the website I just didnt giva shit anymore...    

Its been a rough morning.