I just found out from Daisy's "breeder" that her mom came into heat for the first time at six months... Ack!
Okay, so what is the benefit of waiting longer on a female? I'm still confused... is it just so they achieve full growth? If they don't, does it cause joint problems?
A study of 1444 Golden Retrievers performed in 1998 and 1999 also found bitches and dogs spayed and neutered at less than a year of age were significantly taller than those spayed or neutered at more than a year of age.(2) The sex hormones, by communicating with a number of other growth-related hormones, promote the closure of the growth plates at puberty (3), so the bones of dogs or bitches neutered or spayed before puberty continue to grow. Dogs that have been spayed or neutered well before puberty can frequently be identified by their longer limbs, lighter bone structure, narrow chests and narrow skulls. This abnormal growth frequently results in significant alterations in body proportions and particularly the lengths (and therefore weights) of certain bones relative to others. For example, if the femur has achieved its genetically determined normal length at 8 months when a dog gets spayed or neutered, but the tibia, which normally stops growing at 12 to 14 months of age continues to grow, then an abnormal angle may develop at the stifle. In addition, with the extra growth, the lower leg below the stifle likely becomes heavier (because it is longer), and may cause increased stresses on the cranial cruciate ligament. In addition, sex hormones are critical for achieving peak bone density.(4) These structural and physiological alterations may be the reason why at least one recent study showed that spayed and neutered dogs had a higher incidence of CCL rupture.
Per the link I provided earlier:
Basically, since sex hormones influence bone growth, if those hormones are taken (through spaying/neutering) before the dog is done growing then the development of bones will be "abnormal." The idea posed in this article is that this abnormal growth of bones potentially increases a dog's risk of ligament injuries later on in life.
Again, this is your decision in the end, you need to take in all the information you can and decide what you believe to be the bigger risk. Not everyone believes the same.![]()
Thank you! I was overwhelmed with the data provided and couldn't really grasp what was being said!
So, if I let her go through her first heat, it won't affect the spay? Can she only get pregnant while in heat, or at any time before the spay? If she wore a "diaper", could she still go to the park? LOL
I'm thinking I would prefer to wait until a year... I want her to be as healthy as possible!![]()
While she's in heat I would limit outings to only places, and times of day, where there will be no other dogs. Dog parks would be a BIG no-no during that time... the other dogs would be all over her, and a fight could easily break out.Going through a heat will not affect the spay procedure once you decide to do it. She can only get pregnant while in heat; once the heat cycle is over you will be good to go for another 6 months or more (heat cycles are generally every 6 months).
I don't know if I would take her to the park with a diaper on.While she's in heat I would limit outings to only places, and times of day, where there will be no other dogs. Dog parks would be a BIG no-no during that time... the other dogs would be all over her, and a fight could easily break out.