Reptile Forums UK  

Go Back   Reptile Forums UK > Help and Chat > Genetics

Reply
 
Thread Tools Display Modes
  #1 (permalink)  
Old 31-03-2008, 09:27 PM
simmi85's Avatar
Forum Citizen
 
Join Date: Jul 2007
Location: preston
Posts: 519
Send a message via MSN to simmi85
Default inbreeding??????

ok so if im correct breeding two reps from the same clucth is a no no?? how come some people are saying that you can breed a baby back to its parents?????
__________________








custom vivs made to high spec pm for details and a free quote
Reply With Quote
  #2 (permalink)  
Old 31-03-2008, 09:41 PM
Declan123's Avatar
Premier Citizen
 
Join Date: Dec 2007
Location: Stoke-on-Trent (UK)
Posts: 3,453
Send a message via MSN to Declan123
Default

ive never heard this.....wouldnt suprise me if people do it tho....But i certainly wouldnt
__________________
My field is with apex predators, hence your crocodiles, your snakes, your spiders. -Steve Irwin
Reply With Quote
  #3 (permalink)  
Old 31-03-2008, 10:13 PM
Akua_Ko_Nalu's Avatar
Blood Ball
 
Join Date: Feb 2007
Location: Southampton, Hampshire
Posts: 2,845
Send a message via MSN to Akua_Ko_Nalu
Default

It is often done when breeding for a specific trait, for example, if 2 siblings have extreme pattern or colour.

When done for the sake of it, I wouldn't recommend it.
__________________
www.BloodBall.co.uk - Specialising in Blood & Short-Tailed Python Morphs and Locales, and Ball Python Morphs

2008 Male Mojave and Normal Female Available - £550 the pair, Stunning examples!

Red Blood Pythons Hatching - Ready Soon - PM Me For Details!

Reply With Quote
  #4 (permalink)  
Old 31-03-2008, 10:17 PM
BG-Gecko's Avatar
Super Citizen
 
Join Date: Nov 2007
Location: the Netherlands
Posts: 675
Default

Most people think it's oka with leopardgeckos since they're less prone to inbreeding (which is slowl starting to chance in my opinion because loads of people inbreed for too many generations, which is animal abuse in my opinion) But it's oka if the parents are unrelated and you bring some 'new blood' in your lines every third generation.
This way the babies won't be affected by this and your bloodlines will stay strong
__________________

FIRST 2008 BABIES HATCHED!!
2x Mack Snow
1x Wildtype (Pastel??)
SOON FOR SALE!!
Reply With Quote
  #5 (permalink)  
Old 31-03-2008, 11:17 PM
HadesDragons's Avatar
Premier Citizen
 
Join Date: Jun 2007
Location: Chester, Northwest UK
Posts: 3,249
Send a message via MSN to HadesDragons
Default

It's not recommended.

Sometimes, e.g. with recessive traits, such as albinism, the only way to carry on the line is by inbreeding. Ideally this should then be followed by a flurry of outcrossing then re-crossing, to ensure genetic diversity in the line.

With "line-bred" (generally meaning less intensive inbreeding) for a colour, direct sib-sib / offspring-parent inbreeding is often used as a shortcut to a fat wedge of cash, often at the expense of the long-term health of the line. That's why many high-colour animals / extreme morphs are more prone to "problems" / defects. Outcrossing can help, but obviously reduces the trait that you were breeding for in the first place, so you then have to keep selectively breeding for longer.

Inbreeding with animals such as leos that are sometimes available WC is less of a problem if you regularly outcross them to these WC animals. A WC animal is heavily pressured by natural selection, so usually has very solid genes. For animals such as bearded dragons, where no WC animals are (legally) available, inbreeding is more of a problem - it has been going on for a long time, so many animals in captivity aren't as gentically strong as their wild counterparts. That means that outcrossing can be less effective in bringing the line back up to strength.

Inbreeding "for the sake of it" - e.g. because someone bought a brother and sister and wants some babies, is irresponsible to the long term health of the line. Generally the same people who do that don't know what outcrossing is, so you will end up with animals that have the potential to become genetically weaker over time.

Inbreeding for a particular trait is debateable - some people are anti-morphs; some people like morphs. However, there is usually a "long-way-round" to the morph - e.g. breeding slightly related animals (cousins or less) helps to maintain genetic strength, whilst still enabling you to (slowly) build up the desired trait. For recessive alleles (such as albinism), after the initial, "required" inbreeding, animals can be crossed out continuously to distantly related animals for several generations to ensure fresh blood in the newly-created line. Again, it will take longer to get these animals on to the market.

In my personal opinion, there is no need to breed sib-sib or parent-offspring more than once in a line - people who do it frequently are taking shortcuts, whilst gambling with the long-term health of the line. This is especially important in species where there is no flow of fresh blood into the line from the wild. I would also not breed an animal to it's uncle / aunt (relatedness 25%). Cousins (relatedness of 12.5%) is around where I would draw the line, but only for lines that are genetically strong to begin with, and certainly not every generation.
__________________

Please Help Stop the Desert Elephant Hunt - sign the petition today!
Reply With Quote
  #6 (permalink)  
Old 31-03-2008, 11:35 PM
simmi85's Avatar
Forum Citizen
 
Join Date: Jul 2007
Location: preston
Posts: 519
Send a message via MSN to simmi85
Default

i thought it was wrong was just checking think its morally wrong anyway lol we wouldnt do it y force reps to
__________________








custom vivs made to high spec pm for details and a free quote
Reply With Quote
  #7 (permalink)  
Old 31-03-2008, 11:44 PM
Super Citizen
 
Join Date: Dec 2006
Posts: 615
Default

Truth is there are a lot of morphs that was built up number from mass inbreeding all the recessive traits that's albino's trempers/bells/rainwaters,blizzard,patternless'etc'etc.plus linebred trait tangeines,jungles,striped'etc'etc was all inbred at the begining.As the breeders only had the one and you had to breed it to one of the same genetics.These days there no need to inbreed onless you have a genuine real goal in mind or to prove a gene that you have from a odd looking hatching you've hatch.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off
Forum Jump

Exotic Pet Sites


Help For Heros

All times are GMT +1. The time now is 12:43 AM.


Powered by vBulletin® Version 3.7.2
Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.2.0
Copyright © 2005 - 2008, Reptile Forums UK (RFUK™)