Backyard Aquaponics
A place to discuss aquaponics

Nice work Brian!

Great harvest of Trout, well done

Thanks Muz and Faye!

The funny looking trout which I've seen here too it is a spine deformities that is associated with triphloids specimen, apparently this type of deformities only belongs to genetically engeniered family.
I'm keen to not use Triphloids trout because of the un-natural way they are modified to boost production.


SAY NO TO GMO TROUT FINGERLING!
SAY NO TO SEX INVERTED TILAPIA!
SAY NO TO CAROTENOIDs IN SALMONIDS FISH FEED!

Harvested the last of the trout except for the elusive few . No photos , no monsters

Early heatwave (38's) is certainly taken it's toll. Last few years I've taken them right thru...

Anybody else still going with trout ?... Muz ??

Triphloids are not genetically modified organisms, at least in the bio-engineered sense of the phrase. The only bio-engineered animals are in tightly controlled research facilities. There are no Bio-engineered food animals available anywhere. No will there be until human controll over them can prevent them from surviving in the wild on their own.

Triphloids are created by controlling a natural process, there is nothing unnatural about them other than the amount of them we make. In nature they are pretty rare.

I'm not sure why you would say no to Carotenoids in salmonid feed... I don't know about Trout, but Salmon need Carotenoids in their early stages of development. Astaxanthin (which is the coloring used in animal feed) is a β-Carotene. β-Carotenes have been shown to increase mortality in smokers and others who have chronically irritated lungs when given as a supplement. However that does not mean β-Carotene is bad for everyone, it is actually converted in the small intestines to Retinol, which is Vitamin A. Vitamin A is needed for low light sensitivity, and is converted into Retinoic Acid, which is an important growth factor for Epithelial Cells. In a study Physicians to 50mg of β-Carotene every other day and showed less of a cognitive decline over the years as compared to those who didn't. The best advice right now is it's not necessary to aviod β-Carotene unless you have chronically irritated lungs or cancer.

Not true.... genetically engineered/modified salmon have been basically given FDA approval in the US....

http://en.wikipedia.org/wiki/AquAdvantage



And numerous genetically modified Tilapia strains are close to approval...

Approval does not equate to availability. :-p. and that approval happened less than 12 hours before I wrote the post... Lol... er... sorry a few days, the first news article I found was from 22 hours ago...

FDA is a joke, they wouldn't know if their bums were on fire... Grossly negligent and corrupt.

The heat has been a killer. For the first time my tanks have been getting up to 27 degrees and so we pulled half the remaining trout out on Boxing day and the other Half on Saturday. One very elusive trout remains in the tank and seems happy enough with the water in the 27 to 28C.

The hot days aren’t so bad it is the hot nights that’s keeping the tank temps up. Usually we get down to around 16 at night and gives that tanks a chance to cool down before the next day. Not so this year.
At least the Silvers love it



Most were over 1kg and several just over 1.5

Great work Marc

Cant believe people are still harvesting trout

I pulled two (and a Silver Perch)... for the NY BBQ yesterday....

Well, only 8 hours of 2012 remaining here in West Oz so not much more opportunity to brag about trout achievements or conquests.
My first go at keeping trout was very exciting, frustrating at times but satisfying overall. 81 of my initial 100 Rainbows survived to make it to the plate or the freezer. Of the bodies accounted for, four died at the fingerling stage and four died when large enough to harvest. It is disappointing that 11 remain unaccounted for, presumed dead and their bodies just swallowed up by my large system.
None of my trout achieved the half kilo mark and I am in awe at the size of many of the trout appearing in this thread - well done to those that grew them! The bar has been set high for next year and I am personally hoping to produce some fish that are genuinely bragworthy. Good luck to everyone with the 2013 Trout Brag Thread and I wish you all the best, generally, for the new year.

PLJ

The unfortunate heat wave has certainly made it pretty hard for the trout, my FT registered 28deg the other day...fortunately I had harvested all but one which I could not catch. It was a smallish one so I was not bothered.

Average size was about 400g with about 4 at 500g out of 20 fish losing about 4 for whatever reasons. Trout went into the tank in July so not a bad result and it is great to get the first feed.

Hated killing them and it took a fair bit of breath holding to gut them etc especially the first one!

Anyway loved em smoked in the Weber BBQ for xmas and the rest in the freezer.

I thought the small one left in the tank had disappeared for whatever reason, but nup he/she is still in there all on it's lonesome...lol

I figured that as it has survived this heatwave it deserves to live as long as it can....will be interesting to see how long.

I have started another system which I stocked with 10 SP just before xmas, but sadly none have survived the heat.

Not sure now if I should actually wait until the danger of another heatwave is over before I bother to get any more fish. Maybe end of February, but that seems to me to be wasting a lot of grow time.

I am not happy with the handling of the fish from the place I bought them, I am thinking that they were doomed from the start due to rough handling. Next time I am going to ask if I can catch them myself and see if I cannot do it a bit calmer than they did.

It also concerns me that the extremes in our weather are getting worse which is making the backyard AP far more difficult to manage. Both summer and winter.

I am not sure how you could cool your water during these heatwaves, I have three ponds, one AP 1000 LT is fully covered and no sun gets to it at all, one AP 500 LT only gets early morning sun and the rest of the day it is in shade...the other is a frog pond which gets quite a bit of sun and it is much bigger than any of the AP sytems, when I did a water temp check the other day they ALL gave the same temp 27degs tadpoles love it but seems the fish not at all happy. So it seems that unless you have considerably more water like maybe 3 or 4 times the temps will be the same.

I found it interesting as I expected the frog pond to be a bit cooler. Next time I will go down to our dam and check that as well. It is bound to be cooler as it is a lot deeper...hmm maybe I should chuck some trout in there, only issue is how to harvest them I guess and also then I would need to give some aeration which starts to get difficult....

Hi Jackied, i had the same experience with my trout and have one left in the tank, that is doing well despite the high temps. I would not be too concerned that you got your trout to Christmas as most harvested well before then. Next season if you start in April you will be rewarded with some fine sized fish. You probably experience similar temps to me and this heatwave was unusual especially the high night temps.
I have 2 tanks, one of 1000l (sump) and the main tank of 4000l. even with all that water I ended up with the same tempsas you ( see my thread).
I dont know why your silvers died but it should not be heat related as they love these temps. Charlie's system at Kal is in a permanent heat wave and his silvers are doing well and he had a great trout season.
So i would not be so worried about the temps you have as there are people growing fish very well in hotter and colder climates than ours.
stick with it and and you will be reward with some fine produce.

Ps I get my fish from Troutman who provides an outstanding service and quality fish, to your door.

Cheers
Marc