Breeding Lines

[jimmy james]

To have a healthy strong breeding line of shrimp, is it better to add new shrimp to the gene pool or just let them interbreed with each other. e.g. if I start with 5 crs shrimp and they multiply to 20, then 40 etc. will they be as fit and healthy as the original 5 or would I be better to remove the young shrimp or add new crs shrimp from different lines?

[Dincho]

Always add to the gene pool! If your starting group is only 5 CRS then it would be best to add new shrimp every couple of generation, sooner preferably.

[jimmy james]

Thanks. I have about 18 adults and out of the first brood 5 have made it to about 1.5 cms. I'll look to add more. I don't know if I can buy through this forum, or I might not have enough posts yet to see. ukaps might be the way forward. I think I pm'd you last year when you where moving?

[Dincho]

Only via pm on here.

Keep in mind that mixing shrimp colonies can also lead to bacterial infections, new shrimp MUST be quarantined, even that is often not enough without additional measures.

[jimmy james]

Will do. So... the likelyhood is that if got my original 5 shrimp from the same breeder then they probably are from the same parents and therefore their offspring are all interbred. Crikey. Where's my banjo? (deliverance)


P.S. like your signature. Too true.

[Trail_Mix]

Only via pm on here.

Keep in mind that mixing shrimp colonies can also lead to bacterial infections, new shrimp MUST be quarantined, even that is often not enough without additional measures.

Huh, I've never heard of this, can you elaborate on what you have to do to avoid bacterial infections, and how common/serious of a problem is this? Thanks!

[jimmy james]

Have a look here. http://www.shrimpnow.com/content.php...ing-New-Shrimp I have lost quite a few shrimp due to infection. Oh just seen this http://www.shrimpnow.com/forums/show...-Infections%29

[randyl]

From reading an article by a famous Japanese CRS breeder, interbreeding will cause problems such as the deformed or super weak shrimplets. But that normally doesn't occur until F5, and more likely at F10. Some Japanese breeders can delay it until F15. Keeping the same line going is better in achieving certain character goal (pattern, colouration, .. etc), but introducing new gene pool will become necessary to maintain a healthy line. You gain some and lose some.

Introducing golden gene is a completely different story. A lot people do it, only a few admit.

[Trail_Mix]

From reading an article by a famous Japanese CRS breeder, interbreeding will cause problems such as the deformed or super weak shrimplets. But that normally doesn't occur until F5, and more likely at F10. Some Japanese breeders can delay it until F15. Keeping the same line going is better in achieving certain character goal (pattern, colouration, .. etc), but introducing new gene pool will become necessary to maintain a healthy line. You gain some and lose some.

Introducing golden gene is a completely different story. A lot people do it, only a few admit.

What's the deal with the golden gene?

[soonsing]

What's the deal with the golden gene?

its really hard to find real white gene CRS many of them cross breed them with golden gene already

correct me if i am wrong.. hehe