Agreed with the other posts, Fx indicates the number of genereations line bred from the same two parent animals.



While line breeding is common to get traits you want, you also are line breedingtraights you don't. For example the EBV line of Hpomelanistic BRB's. The whole line originated from a pair of siblings that came from the same breeder. The first hypo's (recessive trait in BRB's) were from those two siblings. Now a few generations later there are problems with the animals regurgitating. This seems to be rapidly cured with one generation of outcrossing so is not totally messed up. The regurge problems started about F3 or so.



One other point is if you are purchasing "siblings" for breeding, they may NOT be F1's, the parents could also have been siblings which would make them F2's. grandparents the same? - F3's etc. etc.



Last point is thst sibling does not necessarily mean from same clutch. For example Male X crossed with Female Y two years ago produced a clutch of really nice babies. Duh, let's do that again and last year they produced another clutch of really nice babies. Both clutches are 100% siblings so a 2004 crossed with a 2005 could still be line breeding.





Bottom line IMO, line breeding is not the best way to go but sometimes necessary to get the results you desire. To be avoided if possible and if not possible to avoid, proceed with caution.
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Thanks,



Dave "Rainbows-R-Us"



0.1 Wife (WC)

0.2 kids (CBB)

4.12 Brazilian Rainbow Boa

2.1 Hypomelanistic BRB

0.1 Het for Hypomelanistic BRB

0.1 BCI "Elvira" normal from 1989

1.0 BCI albino / het-anery

0.1 BCI Hypo / het-albino

0.1 BCI Anery / het-albino

0.1 BCI Hypo (possible super)

1.0 BCI albino het stripe

1.0 BCI salmon hypo

0.1 BCI ghost



lots.lots.lots feeder mice and rats



_____



sig file edited, contact an admin. 2/13/06

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