Rat breeding questions!! Help!

I AM PRETTY NEW TO BREEDING RATS AND I WOULD LIKE TO KNOW THE WEIGHT THAT YOU ALLOW YOUR FEMALES TO GET TO BEFORE YOU START BREEDING THEM. PLEASE ANSWER YOUR THOUGHTS AND OPINIONS. THANK YOU!! I WOULD LIKE TO KNOW THE WEIGHT FOR BOTH FEMALES AND MALES BEFORE YOU START BREEDING.:tears:

Whoa on the cap locks there, your hurting my ears, LOL

We breed males at 8 to 10 weeks old and females at about 10 to 12 weeks old.
We don't weight them, so I can't give you a weight, sorry.

I wait until females are at least 250 grams. I don't have a starting weight for males.

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I hold a couple of girls back all the time and wont put them in rotation till they are at least 8 weeks old and that's only if one of my breeders dies off. Males get to go whenever I lose a male.

I try to wait until the hit 200-250 grams but that does not always happen had a litter the other day form a 12 week old hold back. It was bot planned I think one of her brohters got busy with her when I had them all in the same tub due to a water spill.

Must be new to forums too ;) ....not having the caps on would really make it easier to read.

I do not go by age I go by weight for females, I start putting them in rotation at 200/250 grams.

Males I just eyeball it and place them with females similar in size.

What works well to fatten them up? I have a few females hovering a little below 250 and they're 12-15 weeks old. I feed Mazuri 6F only right now.

I feed a mix of mazuri dog food and sunflower seeds.

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I would think sunflowers would fatten them up nicely.

Yes they do

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thanks for all the comments guys! sorry for the caps haha:cool:

I wait till the females get up in size. So ~200-300 grams.
I put the same size male as the female or larger.

Sunflowers are pure grabage, no nutrients, and not something they need or can use that is healthy.
You want to fatten a rodent up, try yoghurt, mashed potatoes, pastas, etc.
Oily seeds are great for treats only :gj:

I've found some of the best groups I've put together were raised together from weanling size. They fight less and they get along better than groups put together when they are older.

Quote:

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Originally Posted by snakesRkewl

Sunflowers are pure grabage, no nutrients, and not something they need or can use that is healthy.

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Well dadgum. I was completely wrong. Lol Is it bad to have sunflower seeds as a decent sized part of a mix? I'm trying to make up my mixture for my pet rats, and I can get sunflower seeds for free. I don't want to feed them just dog food and pig pellets.

Quote:

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Originally Posted by Andrew21

Is it bad to have sunflower seeds as a decent sized part of a mix?

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Yes, they shouldn't be a regular part of their diet, because, like people, rats generally prefer junk food. So you'll end up feeding them your mixture, and they'll eat the seeds first, leaving behind the other food. And then it would only be natural for you to think that because they like the seeds so much, that they should get more. And then you'll end up with a bunch of fat, greasy rats with the libido of a rock....small litters, crushing babies because they're too lazy to actually nurse, so they just lay all their weight on them.

I mix 25lbs of each dog & mazuri & about 10lbs of seeds. That's a mix of 60lbs of food. My rats like the mix.

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1. Don't give rats sunflower seeds. Rodent block and fresh clean water is all that is necessary for the production of rodents and should be all that they eat and drink.

2. I don't breed females until they are 16 weeks old. I usually end up losing one litter's worth of production over the lifetime of the female by waiting to breed them as opposed to people that breed them earlier, but the long term results offer more production.

3. I have a long and complicated selection process for choosing replacement females, but needless to say I choose the largest females at 16 weeks old. I have no idea what they weigh, but if the ones I choose are bigger than their littermates then that is good enough for me.

4. I would advise against putting breeding groups together at weaning size. I wean around 25-26 days old for the most part. Rats that are introduced at that age will certainly be quite social with one another and probably never fight, but they will breed at much too young of an age to be healthy for the female. It will cut into your bottom line over the breeding life of the rat. She can be stunted, her litters can be smaller, and the pups that she weans can be smaller.

In review, I wait until they are 16 weeks old. I choose the largest females at that point if she meets my other criteria.

Males are put into the gene pool at 16 weeks old as well. They are much larger than the females that they are going in with and they usually mate successfully within days of being introduced.

I think Jerry might just be talking about introducing all the females to each other at weanling size and adding the male when they're up to size?

I prefer to wait till 14 weeks for females. Males start whenever they feel like it haha. Like many others I do not weigh but I do make sure the female is dense feeling with a strong muscle mass.

Off topic: While fat does have a roll in pregnancy I feel that protein should not be ignored. A female with a lot of fat in her diet may be able to have one large litter well but her recoup time will be longer than a rat given the proper protein. Chicken (skinless white breast) is a small special treat for our girls that pop out 15+ back to back. We get chicken and beef bones from a butcher and the rats chainsaw right through them. Bones are not fed to rats that are not in breeding.