BREEDING TO GET FEMALES - Page 1

How to you that breed to get females do it? Do you try to breed prior to ovulation so the male sperm die off first? Do you wait for the progesterone to be 4 or above? Do you only breed once in that case? I am very interested in getting some info on this as soon as possible. Any help appreciated. The bitch I am about to breed is a fairly new one to me and the best I can calculate she ovulated on day 10 last time delivering her whelps 61 days after the first mating and giving me only one female and the rest males. She was bred on day 12 of her heat last time. Thank you very much for your help.

The number or proportion of males/female in the litter depends entirely on the sire.

Your female will always give X chromosome to all her pups, but the sire can give either X or Y, which determines the sex of the pups (XX - girls, XY - boys).

Most likely litters that have 10 males one female are coincidence, but it is also possible that the male you are using has something going on with his sperm. In such case using a different male will help.

 

Agree with KvL.

Male or female sex is determined purely by chance.

The timing of conception, or hormone levels at the time of conception, is irrelevant.

50% of the chromosomes are provided by the female (who is XX), 50% of the chromosomes are provided by the male (who is XY).

Thus, 50% chance puppy is female (X from mom, X from dad) and 50% chance puppy is male (X from mom, Y from dad).

Actually gsdlvr2  is correct .   While you can not reliably breed to produce one sex or the other in puppies you could increase your odds.

The stud dog determines which sex the puppies will be.  The male sperm tend to be smaller and faster than the female but also not

as hardy.   By breeding the female early you could swing the odds in favor of more female puppies as the male sperm will tend to die

off faster than the female.   By breeding later you might end up with more males.   Either way you could also miss the breeding if your

timing was off and your efforts may or may not have the end result you are hoping for.

The internal chemsitry of a female can also have an influence on the sex of the puppies.   A more acid atmosphere favors the female

sperm and a more alkaline favors the males.   In humans, women can douche with certain solutions to make their system more favorable

one way or the other.   I am not sure if this would work with a dog and also would not even consider it without consulting a reproductive

vet so that no chance was taken of hurting the bitch.

Good luck with your breeding!

Heather