Munruben1 Posted February 3, 2010 Report Share Posted February 3, 2010 Over the last couple of weeks I have sold fish to new buyers and on 2 occassions they have rang saying one of the fish has died within a couple of days. I have heard that fish in UV sterilised water loose some of their immunity to diseases how correct is this? Baz Link to comment Share on other sites More sharing options...
frinkie Posted February 3, 2010 Report Share Posted February 3, 2010 Highly unlikely, get them to test their water. Link to comment Share on other sites More sharing options...
crazyD Posted February 3, 2010 Report Share Posted February 3, 2010 Ph/kn shock is the main killer Link to comment Share on other sites More sharing options...
borntobreed Posted February 3, 2010 Report Share Posted February 3, 2010 none of the fish i have bought off ya have karked it baz that's weird :frog: Link to comment Share on other sites More sharing options...
Munruben1 Posted February 3, 2010 Author Report Share Posted February 3, 2010 Daz, Thats because most of their parents came from your place and had good breeding. Link to comment Share on other sites More sharing options...
liljohn_83 Posted February 3, 2010 Report Share Posted February 3, 2010 ide say the problem is thaire new enviroment just my thauts Link to comment Share on other sites More sharing options...
Wetpetz Posted February 8, 2010 Report Share Posted February 8, 2010 Fish do have an immune memory, but it's fairly short. UV is great for disease control and is a much better option for raising healthy fish, than exposure to pathogens and hoping that natural resistance will develop in an unnatural situation. If I had a choice of buying fish that have never been exposed to disease, or some that had been exposed and had recovered, I'd always buy the clean fish. They'll be bigger and stronger and will not infect other fish. Link to comment Share on other sites More sharing options...
Grumundi Posted February 8, 2010 Report Share Posted February 8, 2010 I know its abit different, but I was chatting to a doctor over here in Vanuatu who is studying the immune system and allergies, specifically peanut and food based ones. He's been here about 6 months and cannot find a single case of a food allergies in the children or adults here, His latest theory is that when the environment is to clean, I.E kids in Australia or any modern western country, there immune system basically has nothing to do, the kids have to wear shoes everywhere, cant eat dirt, wash there hands before they touch there mouth & all what we would call hygeine, well this results in the immune system having nothing to do, and as such starts attacking the person instead. Sounds funny but a kid over here who grows up in near poverty, dirt floors, no shoes, no soap or washing detergent, is healthier on average than the western kids, they have tiny numbers of asthma, but they feed there kids natural foods aswell, and none of the baby milk in a tin. What that has to do in relation to fish I don't know, but maybe the places are to clean and they have no defense against bugs when they do encounter them. Grum. Link to comment Share on other sites More sharing options...
HereFishieFishie Posted February 9, 2010 Report Share Posted February 9, 2010 I know its abit different, but I was chatting to a doctor over here in Vanuatu who is studying the immune system and allergies, specifically peanut and food based ones.He's been here about 6 months and cannot find a single case of a food allergies in the children or adults here, His latest theory is that when the environment is to clean, I.E kids in Australia or any modern western country, there immune system basically has nothing to do, the kids have to wear shoes everywhere, cant eat dirt, wash there hands before they touch there mouth & all what we would call hygeine, well this results in the immune system having nothing to do, and as such starts attacking the person instead. Sounds funny but a kid over here who grows up in near poverty, dirt floors, no shoes, no soap or washing detergent, is healthier on average than the western kids, they have tiny numbers of asthma, but they feed there kids natural foods aswell, and none of the baby milk in a tin. What that has to do in relation to fish I don't know, but maybe the places are to clean and they have no defense against bugs when they do encounter them. Grum. There was an article on the ABC not to long ago, they were speculating about allergies & the such & why r the rates so high in say Australia, yet in poorer places like the Pacific Islands & Ipswich as an example, there were harder any cases at all. Talk was about exposure, but trying to prove that is the key. Then again, I am in my 30's & from my generation, there was hardly this much in the way of allergies, yet the kids now days, it seems to be rampant. I believe there to be some truth in it. Although, might I add. If the barman had of turned round to me & said I think we wash our hands to much etc after I busted him not washing his hands after going to the toilet, I probably would of decked the dirty fu....! Frenchy :sheep: Link to comment Share on other sites More sharing options...
japes Posted February 9, 2010 Report Share Posted February 9, 2010 yet in poorer places like Ipswich as an example I remember watching 60 Minutes a couple of months ago and saw a report on the studies of Vanuatu, from the same Doctor Grum has mentioned I'm sure, where allergies were also starting to creep in to the population on the more civilised side where pre-packaged foods and such were much more abundant. It's a very interesting and more than likely totally accurate methodology as well. I've been brought up in a very clean environment (not clean like the TV ads for cleaning products, but certainly far from messy) and I've got minor allergies towards certain types of grass, cats, pollens, dust, dust-mites, the list could go on forever. Since becoming less active as I grew older and settled into IT as a hobby/job, they've also gotten worse. In regards to the OP, and especially what borntobreed mentioned, I think you'll find a poor acclimation process or just overall poor conditions on the buyers behalf to blame for these deaths, not your UV. Link to comment Share on other sites More sharing options...
HereFishieFishie Posted February 9, 2010 Report Share Posted February 9, 2010 Aye yes.. I remember seeing that too Frenchy :sheep: Link to comment Share on other sites More sharing options...
Rod Posted February 9, 2010 Report Share Posted February 9, 2010 I don't believe fish loose their immunity to disease in UV water.....but Fish raised in UV(sterile) water don't develop the antibodies that enable them to cope with disease if they are removed from that sterile environment..... Trust you can see the difference in the 2 statements. I believe in the Law of Nature.....survival of the fittest If we maximise yield by artificial control of environment.....in the short term it is more profitable but in the long term we end up with a genetically weaker population. This is what we are doing to the human race Link to comment Share on other sites More sharing options...
frinkie Posted February 9, 2010 Report Share Posted February 9, 2010 i do agree with the above statement, with note to the human race - that and intercontinental travel. both are negative to the human race. Link to comment Share on other sites More sharing options...
Wetpetz Posted February 9, 2010 Report Share Posted February 9, 2010 On the original topic: I agree with what's said about resistance to disease developing after exposure, but in fish the benefit is minimal because of the short immune memory. That is, the fish will lose any immunity after a relatively short time anyway. In an unnatural system, with high stocking rates I think UV or similar is essential. I agree that the problem with fish deaths when moving from sterile to non-sterile water is the result of poor husbandry with the buyer. On the off-topic: http://news.bbc.co.uk/2/hi/8268584.stm Link to comment Share on other sites More sharing options...
