Thread: My farm used for final project

Originally Posted by Dalton

Originally Posted by tsicar

but why the temp. affects his fcr is still a mystery.

Well Tilapia has there best growth when the temp is around 28-30 C, when it gets down to 20 C then they aint very happy, the cooler water has an effect on the water parameters as well, so there are many factores to take in consideration.

yes, but you said they were still feeding the same amount, and the cooler water should hold more oxygen? does the cooler water perhaps affect the efficacy of your biofilter? i am sure you would have picked up if it had.
i could understand the slower growth, but why the lower fcr?

Originally Posted by Dalton

Originally Posted by tsicar

i could understand the slower growth, but why the lower fcr?

The fcr and the growth are linked together, if the growth is slow but the feed-intake is the same, the your fcr goes up. Still it could be many things, it's mainly the smaller fish who gets the worst fcr, the bigger ones is not that bad, and there feed intake is less as well, if you look at % of feed compared to the body-weight.

yes, can't believe i missed that. too much cheap wine lately........

^ Guess you're looking forward to come back here, so you're excused...

Is this one of yours Tsicar ???

Ok for those of us in the viewing gallery and are interested but missing out on some of the conversation.

FCR = food conversion rate?

thanks

Originally Posted by Dalton

Is this one of yours Tsicar ???

wish it was.... know just how much pituatary gland extract you could get out of that one?!
out here they are catching them in the orange river, weighing in at between 50 and 60 kg. catfish are only supposed to live 8 to 10 years, so they must have grown at least 5kg per year! the weather gets pretty cold in the winter, and they did not get pellets to eat!
it means there is something they are feeding on which has a higher protien content than fishmeal (not likely) or they get a lot older than everybody thought.
cheers

Originally Posted by bar dog

Ok for those of us in the viewing gallery and are interested but missing out on some of the conversation.

FCR = food conversion rate?

thanks

correct.
ratio of weight gain to feed consumed.
if you do not do this calculation you will never know if your operation is viable or not. farming fish sucessfully depends on constant monitoring of all aspects: fcr, water quality, temperature etc, and accurate record-keeping is essential.
a pencil and paper are probably the aquaculturists most important tools
cheers

Originally Posted by tsicar

a pencil and paper are probably the aquaculturists most important tools

Don't forget to mention a healthy bank-account if some of the above things go south...

Guys - this is way out of my experience and knowledge but please keep it going, I am learning bits as I read. If this keeps up I will know enough to cover a postage stamp.

BD

^ Then you know as much as we do.. There's no golden line to follow in fish-farming, many things depends on the location and the local water-parameters, and the higher stocking density you have the more problems will arrive as well. One never stops learning in this bizz, and mostly from mistakes...

Originally Posted by Dalton

We sell only them at the moment, but we are testing Pengassius as well and later we will try wit sea-bass.

Is this what is also known as Basa?

Any updates Dalton?

^ I believe they are called Barramundi as well, and no updates yet, the fingerling's keeps dying for some reason, we think it's the feed there has to low protein and basically the wrong diet, cause the water-parameters are ok.

Interesting stuff. Thanks for bringing up FCR, bardog; that was driving me nuts.

Have you figured out a way to deal with that cold issue Dalton? What is 'Pengassius' called in Thai?

Originally Posted by Rattanaburi

Have you figured out a way to deal with that cold issue Dalton?

It's not to much of a problem yet, so I leave it for now.

Originally Posted by Rattanaburi

What is 'Pengassius' called in Thai?

Pla Sawai

Have you tried growing pla niu?

^ Yeah, they are getting real big......You need some for your fish and chips....

How about Pla Lak Klue-ay? I thought I heard that they are expensive here in LOS. Those are the 3 inch thin ones they deep fry and serve as a snack with your drinks.