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  1. #1
    BPnet Veteran rufretic's Avatar
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    When to retire breeders?

    About how long do your breeders last before you need to retire them? Do you base it on time or do you just wait until you notice production is going down? I知 still on my originals but I知 thinking I知 probably going to have to start retiring them soon. I知 not too sure when I started breeding but I壇 guess somewhere between 8-10 months ago. My original females are still producing but they originally produced very large 15 plus litters and now it feels like I知 lucky to get 10 so I知 guessing I知 getting around that time to start replacing them.

  2. #2
    BPnet Veteran Ba11er's Avatar
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    If you start seeing a progressive trend in smaller litter size i would say its time to get some fresh breeding females in rotation. keeping records is helpful if production is critical, that way you can breed for females that produce big litters.

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    rufretic (11-24-2017)

  4. #3
    Telling it like it is! Deborah's Avatar
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    I have been breeding rats for 10 years and have done it at different stages, obviously maximum food production is my goal so for me now females get retired when they produce under 10 babies and males get retired after 10 months of being initially put in rotation, I do not replace all my male at once only 3 tubs (3 males) at the time, I have 12 males and 72 females in rotation at all time.
    Last edited by Deborah; 11-24-2017 at 05:24 PM.

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    rufretic (11-24-2017)

  6. #4
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    Re: When to retire breeders?

    every year i replace all males and females i every rack hold 24 tubs and i run 4/1. 1st i remove all males in rack 1 and gas them out, i then leave the females for 35 days for those to have babies if they are pregnant. i then gas out all females (96 of them), i then replace all females and males back to 4/1. and then i start on rack 2 same process. All females and males takes me 8 months to do
    The Mice i do the same with but there i run 5/1 and 25 tubs to a rack (125 females and 25 Males) also 8 Months to do all racks

    So for me it is very Year and i start March

  7. #5
    Registered User SilentHill's Avatar
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    we have mice but generally retire when numbers start going down and/or they just seem old and tired haha. one of ours just looks and acts like an old man so he is now retired.
    Gargoyle Geckos: Gorey, Gremmie, Ouija, Gojira, Bacon Bit, Pork Chop, Neo, Penny, Monday, Tuesday, Wednesday & Friday
    Crested Geckos: Eggs, Gypsy, Triscuit, Creature & No-name
    Leopard Geckos: Rhubarb & Pepper
    Cal Kings: Bones & Violet
    Corn snakes: Moonshine (anery tessera), Zorg (anery), Clarice (honey) & Mouse (normal)
    BPs: Charlie (super pastel), Bodhi (pied), Finn (GHI Mojave), Dublin (fire bumblebee), Falkor(mystic potion), Letty (pewter)
    BCI Boa: Specter (Fineline morph), Sunglow and/or Snow coming soon....
    Mice: Mercy & Marmalade
    SnuSnu the cat, Corbin the pit bull, Cinna the collie mix & Lily the setter mix, Tofu the axolotl
    plus one little special needs bearded dragon P. Sherman

    'everything was beautiful and nothing hurt' - vonnegut.

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