German Shepherd Dog > German Shepherd gestation period--precise (17 replies)

by HighDesertGSD on 28 September 2011 - 21:09

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I know that most dogs have similar gestation period, 62-64 days after ovulation.

I want to know if the GSDs (may be most larger breeds) tend to have a bit little longer gestation period, say 63-65 or 66 days after ovulation.


I read that small litters tend to have a day or two longer gestation, since the "We want out" hormone is less.  

breeders of many litters of GSD may have an idea.

by BlackthornGSD on 29 September 2011 - 03:09

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My vet has said that it should be 63 days from time of the LH surge, which is effectively 61 days from ovulation. My actual experience has been that my dogs have their puppies 59 to 63 days from ovulation.

I had one litter that I did not do any progesterone testing--and I think she was bred too early (the first litter I bred). She had her puppies 66 days after the day of first breeding--and it was a small, 2-pup litter. Another female of mine never went past day 60 and she was regularly progesterone tested to make sure I knew when she was ovulating.

So, really, 59-63 days doesn't help much at all. I watch the female closely and take her temperature twice a day after day 58. If the temperature drops below 99, then usually, serious labor will start within 24 hours. However, since the temperature will "bounce" below 99 and then back up, you can miss this drop.

Behavioral changes have been the biggest indicators for me--panting, agitation, denning, digging mean that pre-labor has started and real labor will start sometime in the next 24 hours.

Good luck!

by Jenni78 on 29 September 2011 - 04:09

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In a perfect world, we'd have precise timelines.

In reality, my experience is I have about ten minutes from the time she starts tearing up my blankets and dog beds. LOL

by HighDesertGSD on 29 September 2011 - 17:09

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I read from many sources that the average for all breeds is 63 days after ovulation or 65 days after LH surge, not 63 days after LH surge. +/- one day very possible.

by HighDesertGSD on 29 September 2011 - 17:09

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I think if you had done progesterone test at the right time, that means catching the 4.5-5.5 ng/ml reading, you can predict the whelping day to within 48 hours.

A reading of about 2-2.5 is also good.

If you get a reading of 15 ng/ml, all it says is to breed at once but the date of ovulation can be off by 48 hours.

by HighDesertGSD on 29 September 2011 - 17:09

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Perhaps the practical signifcance is how long to wait until you start to worry.

If say at day 1 the progesterone is 5.0.

If x-ray at day 50 confirms pups and by day 65 there is still no labor, do you start to be concerned?

by Keith Grossman on 29 September 2011 - 23:09

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The issue isn't determining gestation but determining ovulation.

by HighDesertGSD on 29 September 2011 - 23:09

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"The issue isn't determining gestation but determining ovulation.

Actually it is both.


Determining ovulation aids the timing of breeding.

Gestation period, after knowing ovulation, aids decisions about labor.
 "

by Keith Grossman on 29 September 2011 - 23:09

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Actually, the gestation period is fairly constant if you know when ovulation occurred.

by djc on 30 September 2011 - 15:09

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whelping is NOT a precise thing! They are not machines and many bitches have their own timing. Many of mine deliver on day 59. Sometimes it can vary because of the size of the litter.  It's more like getting to know your bitch's individual whelping habits. After all, human women have their own timing also!!!
Debby
 

by HighDesertGSD on 30 September 2011 - 16:09

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"They are not machines and many bitches have their own timing"

I think the point is that even that they are not machines, basically they don't each have their timing.

For dogs it is close to 63 + or - 1 after ovulation.

My question really is for GSDs is it closer to 64 than 62.  May be even 65 but unlikely longer.

This is why knowing ovulation time aids decisions on whelping labor.

The apparent variation is due mostly to unknown date of ovulation.

by HighDesertGSD on 30 September 2011 - 16:09

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"Many of mine deliver on day 59"

This is because the eggs had been fertilized late, say day 4 or 5 after ovulation.

 eggs are fertile 2 to 4 days, often 5 days,  after ovulation. 





 "

by djc on 30 September 2011 - 17:09

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Sorry I don't agree. Just try and tell the human mamas that when they are early or late in delivery. There are MANY factors that can and do effect the whelp date, including the individual bitch and the size of the litter.
My dogs are bred the day the bitch is willing and then for the next 3-4 days. So, there is no way they are bred "late". The "flavor" of your post seems too absorbed in a "preciseness" that's not always there.
Debby

by Two Moons on 30 September 2011 - 17:09

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What is the (we want out hormone?)

Nature has it's own ways, nothing about it is ever precise.

Moons.

by HighDesertGSD on 30 September 2011 - 23:09

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Perhaps atricles are saying that for dogs the gestation period is less variable than for humans, which is not very variable in itself.


Articles are saying that  the gestation period of dogs is 63 + or - 1 day from ovulation. I have not read the percentage outside this range, only terms like "most", "usually".


For some breeds, knowing the ovulation date is used to determine the date of planned C-section.  

by HighDesertGSD on 30 September 2011 - 23:09

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What is the (we want out hormone?)

Nature has it's own ways, nothing about it is ever precise.

I forget the  name of that hormone, but whelping is signaled by the pups triggering or giving that hormone. I will look up.

Nature is not always unpredictable; in this case it is fairly predictable within a range of three days.

 

by TingiesandTails on 01 October 2011 - 01:10

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Oxytocin is the hormone that is produced by each fetus in high levels when the fetus is ready to be born. Oxytocin flows into the mother's bloodstream and back to her uterus. Oxytocin will then stimulate the uterus to contract and produce labour contractions, which will start the birthing process.

I have heard of many GSD's giving birth on the 62nd day. An ovulation test could give you more precise answers.
Every female mammal is unique and I individual females probably have their individual cycles and gestation periods.

by Two Moons on 01 October 2011 - 04:10

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Thanks T&T,
Good info.

My bitches last litter was 63 days.

Truth is, I don't care, makes no difference in any way to me what day it is, I guess if things were off by a week I might start wondering but still changing anything would not be possible so I'm really just glad to have the litter without complications.

Moons.

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