tag:blogger.com,1999:blog-8441491750914005356.post4321218498003041182..comments2023-06-16T12:27:49.821+01:00Comments on Microbes Rule the Waves - 2013: CARNIVOROUS FISH CAN USE PLANT-BASED DIETS EFFICIENTLY IF SUPPLEMENTED WITH CERTAIN BACTERIAUnknownnoreply@blogger.comBlogger4125tag:blogger.com,1999:blog-8441491750914005356.post-4412211004198339082014-03-31T14:27:28.149+01:002014-03-31T14:27:28.149+01:00Hi Adam,
thanks for the comment
I think it is unli...Hi Adam,<br />thanks for the comment<br />I think it is unlikely that higher temperatures would have any detrimental impacts on plant-based diet of Asian seabass. Because in case of the study that you reviewed, the fish investigated was Atlantic salmon (Salmo salar) which is a temperate fish. In contrast to that Asian seabass (the fish species investigated in this study) is a tropical fish and I guess it would be naturally living in waters of much higher temperatures than 17°C of tropics.<br />Thus, higher temperature-induced problems that Atlantic salmon showed appear to be unlikely to occur in Asian seabass.<br /><br />Anonymoushttps://www.blogger.com/profile/13018962431501042650noreply@blogger.comtag:blogger.com,1999:blog-8441491750914005356.post-54579694892453439422014-03-27T18:10:27.157+00:002014-03-27T18:10:27.157+00:00I've recently looked at a paper that looked sp...I've recently looked at a paper that looked specifically at soybean protein supplements in Salmo salar, and found that they cause inflamed intestines as well as diarrhea, vomiting and increased mortality - these affects were though found at high temperatures (17°C). I know that these were a different species to this study, but it would be interesting to see if temperature had an affect on the findings of this experiment, and if it would put any restrictions on the use of such probiotics. <br /><br />I also see that this was a closed experiment - it would be interesting to see if there are any differences to this experiment when the fish are also exposed to external microbes during the experiment.Anonymoushttps://www.blogger.com/profile/17478529917187543315noreply@blogger.comtag:blogger.com,1999:blog-8441491750914005356.post-24986585727168471642014-03-18T15:16:38.639+00:002014-03-18T15:16:38.639+00:00Hi Dean,
thanks for the comment.
once the bacteria...Hi Dean,<br />thanks for the comment.<br />once the bacteria are identified and cultured, you do not need to isolate them again from the environment (in this case intestine of fish) and identify them. And as Daniel said in yesterday's lecture, Bacillus spp. are very commonly used probiotic bacteria for fish. Hence their cultures may be available commercially. <br />And it is not about replacing fish meal with bacterial meal, but bacteria will be added as supplements in the plant-based diets of fish. Once inside the fish the bacteria will multiply and get into sufficient numbers, I guess. <br />Thus, I don't think that cost of applying this is a big issue, at least compared to keeping on feeding them with the economically and ecologically unsustainable diets of complete fish meal. Anonymoushttps://www.blogger.com/profile/13018962431501042650noreply@blogger.comtag:blogger.com,1999:blog-8441491750914005356.post-45920631659071374462014-03-17T10:45:04.174+00:002014-03-17T10:45:04.174+00:00I wonder by how much bacterial supplementation wou...I wonder by how much bacterial supplementation would allow replacement of fish meal with plant meal, and also whether the difference would be worth the costs of identifying and culturing the appropriate bacterial strains.Anonymoushttps://www.blogger.com/profile/14950879543695501526noreply@blogger.com