Aquaponics Digest - Sat 05/01/99




Message   1: Re: strep

             from "vpage" 

Message   2: Re: strep

             from KLOTTTRUE

Message   3: Re: strep

             from "vpage" 

Message   4: Re: strep

             from KLOTTTRUE

Message   5: Re: strep

             from KLOTTTRUE

Message   6: Re: strep

             from "TGTX" 

Message   7: RE: strep

             from "Ronald W. Brooks" 

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| Message 1                                                           |

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Subject: Re: strep

From:    "vpage" 

Date:    Sat, 1 May 1999 14:43:54 -0600

Two questions to the esteemed list.

Other than toxic chemicals are there management suggestions for tilapia with

strep?

What are the effects of pottasium permanganate?

Thanks

VPage

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| Message 2                                                           |

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Subject: Re: strep

From:    KLOTTTRUE

Date:    Sat, 1 May 1999 16:50:31 EDT

In a message dated 5/1/99 4:45:38 PM Eastern Daylight Time, vpage@nucleus.com 

writes:

<<  

 Other than toxic chemicals are there management suggestions for tilapia with

 strep?

 What are the effects of pottasium permanganate?

 Thanks

 VPage

 >>

What are you calling strep? Can you describe the symptoms. Ken

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| Message 3                                                           |

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Subject: Re: strep

From:    "vpage" 

Date:    Sat, 1 May 1999 14:54:52 -0600

Bug eyes,weak,die if stressed,scale loss,bleed through scale loss

sites,unintact looking fins

VPage

-----Original Message-----

From: KLOTTTRUE 

To: aquaponics@townsqr.com 

Date: Saturday, May 01, 1999 2:50 PM

Subject: Re: strep

>In a message dated 5/1/99 4:45:38 PM Eastern Daylight Time,

vpage@nucleus.com

>writes:

>

><<

> Other than toxic chemicals are there management suggestions for tilapia

with

> strep?

> What are the effects of pottasium permanganate?

> Thanks

> VPage

> >>

>What are you calling strep? Can you describe the symptoms. Ken

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| Message 4                                                           |

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Subject: Re: strep

From:    KLOTTTRUE

Date:    Sat, 1 May 1999 17:09:33 EDT

In a message dated 5/1/99 5:02:09 PM Eastern Daylight Time, vpage@nucleus.com 

writes:

<<  

 Bug eyes,weak,die if stressed,scale loss,bleed through scale loss

 sites,unintact looking fins

 >>

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| Message 5                                                           |

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Subject: Re: strep

From:    KLOTTTRUE

Date:    Sat, 1 May 1999 17:24:56 EDT

In a message dated 5/1/99 5:02:09 PM Eastern Daylight Time, vpage@nucleus.com 

writes:

<<  

 Bug eyes,weak,die if stressed,scale loss,bleed through scale loss

 sites,unintact looking fins

 >>

Hi Victoria,Sounds a lot like what was wrong with my fish,bleeding,ich,fin 

and tail rot,gill disease, cloudy eyes,I added 1 teaspoon of aquarium salt 

per 10 gallons of water,and used an anti-biotic called Maracyn Two for a 

week,the condition improved,but then they developed True Fungus,I then 

switched to Maracyn for another five days and they healed up,I used 1 tablet 

per 10 gallons,it is supposed to be harmless to Nitrobacter and 

Nitrosomonas,it cost about 10 dollars for 24 tablets,I don't know if this the 

most efficient way to treat them but it worked for methey also make several 

prevention products,the companys name is Mardel Laboratories,Inc. 1958 

Brandon court Glendale Heights,IL.60139   Hope this helps Ken

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| Message 6                                                           |

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Subject: Re: strep

From:    "TGTX" 

Date:    Sat, 1 May 1999 06:05:33 -0500

Hi folks.

Hi vpage.  Hi Mr. Kenmeister...

If you are just starting out and the fish are small enough or few enough to

transfer and treat with a hydrogen peroxide dip, then perhaps you could try

that- although if they are in that "bad a shape", the stress of netting and

doing a H202 dip may finish them off.....  The culture water, though,

undoubtably has the bug that is bugging your fish, so, I might suggest

laying off the feed and letting the biofilter clean up the suspended solids

and let the beneficial heterotrophic microorganisms on the biofilter surface

to eat up and beat up and out compete the pathogens for a while...this is

tricky, because if the disease...whatever it may be...has taken hold to the

degree that most of the fish are in really bad shape, then laying off the

feed for too long can weaken them to the point that they will end up "Eating

the Big Chalupa" as we say around here.

An H2O2 dip at 250  to 500 ppm for 20 minutes or so,  for live fish, is a

pretty good  prophylatic and  pretty good for existing epizootics (eg.,

external problems such as Saprolegnia- a very common opportunistic aquatic

fungus) - but it does little for systemic bacterial septicemia or similar

problems.  I like H2O2 because there is no residual problems to concern

oneself with.  If you choose to do the H2O2 dip, remember that 1% is equal

to 10,000 ppm, so do your dilution math properly and do this in a big tub of

fresh water- not culture water. I would suggest using potable water..yes

drinking water which has 0.5 to 1 ppm or so of residual chlorine from the

drinking water treatment plant, then add the fish, then add the little bit

of H2O2.  Hold them there and watch them and care for them with plenty of

oxygen to help them deal with this.

vpage, we all hope you can get your problem solved and we are rooting for

you.

Ted.

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| Message 7                                                           |

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Subject: RE: strep

From:    "Ronald W. Brooks" 

Date:    Sat, 1 May 1999 22:25:44 -0400

-> <<

->  Bug eyes,weak,die if stressed,scale loss,bleed through scale loss

->  sites,unintact looking fins

->  >>

Victoria from the HAMES Database

1) Bug Eyes -

Pop-eye or exophthalmos* is an physical sign that is unusual in Tilapia

cultured in Hawaii. Some causes include nitrogen gas super saturation

(gas bubble disease), physical trauma and infection of an eye, cancer

within the eye or in tissues behind the eye, or a infection involving the

caudal kidney.  If the pop-eyed condition affects only one eye trauma/

localized infection or a tumor should be expected.  If the condition is

found in both eyes gas super saturation or kidney infection is more likely.

Check the membranes around the eyes and the thin membranes between the rays

or the fins for gas bubbles.  If gas bubbles are present gas bubble disease

is present. For details on gas super saturation and gas bubble disease refer

to the Environmental Section/Gas Supersaturation in the Information Module.

If no bubbles are found HAMES recommends that you call your disease

specialist for assistance with this problem.

2) Scale loss & bleeding from site of scale loss & Frayed or unintact fins

        - bacterial infection

        -

Frayed or missing fins in Tilapia cultured in Hawaii has been associated

with the following factors:

     1) monogenetic trematode infection

     2) trauma associated with handling or

overcrowding

     3) poor water quality conditions.

HAMES recommends that you proceed to the Microscopy Section and examine skin

scrapings for monogenetic trematodes.  If none are found go to the Water

Analysis Section in this Module for evaluation of the following

environmental parameters:

     1) low dissolved oxygen (water hypoxia)

     2) elevated ammonia, nitrite

If these evaluations do not provide a plausible explanation for the frayed

fins contact your extension agent or disease specialist for assistance on

finding the cause for this problem.

3) weak and die easily due to stress - a combination of the above

You are going to have to isolate and treat the cause plus treat the

bacterial infection with an antibiotic . Reduce feed and increase temp and

D.O.. I would also decrease the light and try to keep them quit

Ron

The One Who Walks Two Paths

S&S Aqua Farm, 8386 County Road 8820, West Plains, MO 65775  417-256-5124

Web page  http://www.townsqr.com/snsaqua/



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