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Will neutering affect the growth of F1?

Kan

Savannah Adult
#1
Hi all,

I got Percy(F1) when he was 12 months old and the breeder didn’t neuter him at that time. Now he is 20 months old, I’m thinking when to do the neuter surgery.

When is good time? Will this infect his growth? Usually you guys will get them neutered as early or as late as possible?

He’s not that big right now, around 7.4 lbs @ 20 weeks. I hope he could grow to larger size and this is my first cat, so this question might be a bit silly.

And also is there any obvious difference between before and after get neutered? I just curious. Anything I need to pay extra attention?

Thank you for your advice and sharing in advance!

Attached Percy’s latest pic as my best wishes to you all!






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DumaLove

Site Supporter
Staff member
#2
I believe you mean 12 weeks and 20 weeks, not years?

The prevailing research states that by neutering early the normal hormones that are produced as a cat matures are never produced. These hormones are one of the things that causes the growth plates to close off in the bones which slows down and stops growth. Without the hormones to trigger this process the kitten's bones continues to grow for a longer period of time. In other words, early neuter usually produces your larger cats. I have an F2 male that supports this theory. He was neutered around 14 weeks, and he is over 30 lbs. So I'm certain it did not stunt his growth in the least.

http://cfa.org/Owners/CatCare/SpayNeuter/EarlySpayNeuter.aspx

https://www.ncbi.nlm.nih.gov/m/pubmed/11787153/

http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.204.1002&rep=rep1&type=pdf

http://www.catster.com/lifestyle/cat-health-bust-6-myths-pediatric-early-spay-neuter-cats
 

Kan

Savannah Adult
#3
I believe you mean 12 weeks and 20 weeks, not years?

The prevailing research states that by neutering early the normal hormones that are produced as a cat matures are never produced. These hormones are one of the things that causes the growth plates to close off in the bones which slows down and stops growth. Without the hormones to trigger this process the kitten's bones continues to grow for a longer period of time. In other words, early neuter usually produces your larger cats. I have an F2 male that supports this theory. He was neutered around 14 weeks, and he is over 30 lbs. So I'm certain it did not stunt his growth in the least.

http://cfa.org/Owners/CatCare/SpayNeuter/EarlySpayNeuter.aspx

https://www.ncbi.nlm.nih.gov/m/pubmed/11787153/

http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.204.1002&rep=rep1&type=pdf

http://www.catster.com/lifestyle/cat-health-bust-6-myths-pediatric-early-spay-neuter-cats
Yes! I mean weeks! Thank you! This is very useful!


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Brigitte Cowell

Moderator
Staff member
#4
As DumaLove says, male hormones close up the growth plates, hence early neutering is likely to result in a taller cat. Studies show no ill-effects of early neutering of cats (dogs may be a different thing), so my advice is to schedule it now to avoid any of the negative intact male cat behaviors like spraying!
 

Kan

Savannah Adult
#6
@Kan is this Percy from Sue at Amara Savannahs? He is so gorgeous!!

My F2 kitten, Odrick, is also from Sue and was born 2 weeks after Percy. Percy & Odrick probably played together all the time at the breeder's before they were sent home to us :)

Odrick says Hi!
Yes, Percy is from Sue. OMG, I have seen his picture online before, he grew up a lot! So cute!>



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Kan

Savannah Adult
#7
As DumaLove says, male hormones close up the growth plates, hence early neutering is likely to result in a taller cat. Studies show no ill-effects of early neutering of cats (dogs may be a different thing), so my advice is to schedule it now to avoid any of the negative intact male cat behaviors like spraying!
Thank you! After I saw Dumalove’s reply, I had made appointment just now.


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admin

Paige
Staff member
#8
Welcome Kan! I second what everyone else has said. I neuter my kittens at about 12-14 weeks and although my kittens are SBTs, the males are usually long, lean, tall and about 18-20 pounds.

Percy is gorgeous! I remember pictures of him from birth and add he was growing!


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Cathouse1

Site Supporter
#9
We neutered Loki at 10 months I think. He's over 30# now, so can't imagine if neutering younger promotes larger cats.... My place in the food chain might be different if he was any bigger.