Article View: sci.aquaria
Article #224Re: Frogs
From: rabbits
Date: Fri, 11 Dec 1992 21:53
Date: Fri, 11 Dec 1992 21:53
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2742 bytes
Xenopus, for starters, are illegal in most every state in the Union, unless you are doing research on them. The problem is that they are extremely hardy, and can survive in almost any condition, except Alaska and a few of the north-central states. The penalty for owning them is (min) 6 mos in jail, and a $5000 fine. Pretty bad for a slimy, stupid frog. However, I've worked with them for six years now in research, and they are an exceptionally easy animal to keep and breed, if you have either a strict light cycle (they respond hormonally to increased light cycles) or access to gonadatrophic hormones. They will eat anything- I have seen them eat fish, siblings, their children, and occasionally their own legs, not to mention syrofoam, fingers, gravel, paper, and the like. The recommended diet, however, is purina frog chow (trout chow works, too). Males are smaller than females, they will grow according to the size of their tank (up to 3kg for females in a 500 gallon tank) and density, and are extremely hardy to infection (but if they get one, they are almost always good as dead). You only have to worry about parasites- i.e. worms, flukes, and the like). Do be careful of the slime coat, though- their slime is really nasty; it contains a strong neurodepressant (yes, it -will- affect humans) that is toxic to many animals, a long list of antigen/histamine inducing agents (want to see your hand swell up like a baloon?) and long-chain polymerized mucopolysaccrides that make super glue seem like spit. This is their primary defense mechanism- they are a design that evolved 40+ million years ago and hasn't changed since. I guess it's reasonably successful. One other problem- the babies have a real hard time surviving the first six months- they have a survival rate of about 5%, under optimal conditions. One of the reasons is that they don't know how to eat after metamorphosis, so they often starve to death. They have a lot of genetic problems, which is why they lay so many eggs at a time (2-500). Incidently, they are expensive to purchase. At a discount, going price runs about $25 per animal. If you need any more info- please e-mail to rabbits@carson.u.washington.edu Good luck- Rabbits.
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Path: arc1-ca.pugleaf.net!sparky!uunet!europa.asd.contel.com!emory!ogicse!news.u.washington.edu!carson.u.washington.edu!rabbits From: rabbits@carson.u.washington.edu Newsgroups: sci.aquaria Subject: Re: Frogs Message-ID: <1992Dec11.215316.1215@u.washington.edu> Date: 11 Dec 92 21:53:16 GMT Article-I.D.: u.1992Dec11.215316.1215 References: <Bz1B0C.2v9@news.cs.andrews.edu> Sender: news@u.washington.edu (USENET News System) Organization: University of Washington, Seattle Lines: 34