₦airaland Forum

Pls where can I get d thermometer too?

@ billy and robonski.....what do u mean by water heater? Is it d same as boiling ring? Where can I get d aquarium heater and at what cost? How is it used? And pls someone suggested I use lanterns and coal pots? What do u think. I wanna hatch again soon so I'm very interested in this considering d weather. Thanks

[Hello sir, pls by water heater do u mean d reguler boiling ring? Pls i need clarifications. And also the aquarium heater u mentioned, where can i get it and at what cost? My hatchery is indoors and i also wish to hatch again soon. And finaly if i get d aquarium heater, will i have to run it all day as its electricity depandant. Some one suggested i light lanterns in d hatchery or use coal pots....what do u guys think?quote author=bily post=40760764]

It's important you have a water heater and thermometer or just get an aquarium heater.

The latency time between injection of hormone and stripping is temperature dependent and that's where most people get it wrong. They may have been told strip 8 hrs after injection, what they don't tell you is that the 8hrs is latency time is for when the water temperature is 28 degrees Celsius,which is our average water temperature here on a good day. But during harmattan, the water temperature is usually lower, so latency time may increase so 8hrs will be too early and you will get bad results.

Remember the rule of thumb is that it's always better to strip too late than too early. But best to strip at the correct latency time based on water temperature.

Then also apply what Robonski said, and you should be good.[/quote]

and please u also mentioned fish oil, where can it be obtained? and please kindly provide details of ur farm and phone number. regards

@soft777. thank you very much for ur reports and time. but honestly i think if we can achieve feeding a fish to 1kg with N130 as u have said, then we will be smiling to the bank always. please kindly share the formula for the feed u use so we can learn. at least the popular feed formula given by ablx is not in any way cheap. we need this...regards

soft777:
Very intelligent question , from your calculation you did a mathematical simultaneous equation to get 5000 divide by 15kg to get 333 naira . In the mathematical world you are very correct, but in fish, livestock and poultry , it is not calculated that way .Your calculations are based on optimal feed consumption and growth but in reality the growth rate of fish is not constant, so using a simultaneous equation to calculate live fish , can never be feasible , Growth rate is never constant .In the determination of how much feed, a fish will eat for 4 months , all variables are never constant, because its not the same amount of feed, that 1000 fingerlings will eat, that 1000 juvenile will also eat .This implies that as fish grows its feed more and its fcr increases . So instead of using simultaneous equation, you should use an inversely proportional method to do your calculation. But i will use a simpler method to do this calculation so that others can understand better . Now we have what we call GROWTH RATE and BODY WEIGHT , these are variables as fish grows . Using the growth rate chart , cart fish have lowest fcr at younger age than when they are grown . This means that, they eat less to grow more at younger age, if u have seen the growth rate chart, u will observe a very fast rise in the graph , and as the fish grows more than jumbo size , you still continue to see an increase , till it gets to optimal point at 4 months , like your calculations it starts to drop . This implies that if u dont sell at optimum point , you will start to run at a lost, that is the reason why many fish farmers run at a lost, they sell at wrong time and the fish consumes all there profit as feed .If u dont know your optimum point you can be feeding your fish ,and they will just consume the feed without adding any significant weight gain . This is the secret of catfish farming business . Many people go into catfish hatchery because at small stage or lower age , catfish fcr is very low , so hatcheries tend to make better profit than grow out , but the technicality of hatchery management is more risky , because if u dont know it , you can run at a very big loss in a very short time .This is one of the reasons fish farmers, prefare grow out farming because of less technique and less risk . Now for feed , most of my write up are based on cost reduction but quality feed . i in particular i cartegorise both nigerian made floating feed and the exported feed as foreign because ,most imported feed are so high not because of the feed have much better quality but because of the fall in nigerian currency in the world market . Please note, am not trying to spoil any feed sellers business here . I cant buy a floating feed for more than 4k , i dont mind buying the nigerian made , even if the fish smell in the nigerian made is not as strong as the imported type . What is important is the balance nutrients in the feed , and a little secret is adding or mixing fish oil with the nigerian feed . Fish oil cost about 60 naira per liter .The oil gives the feed a stronger fish smell and it also serves as an attractant to your fish. when you try it ,You will discover how aggresively your fish will feed ,when they smell the fish oil . My calculation are based on cheapest floating feed , 4000 naira , now for our simple calculations . In fish farming we have different stages , fingerlings, juveniles, mellange and table size , at these stages their feed quantity or amount feed differs . So to get our optimal point using my feed amount and quantity , i buy 15kg feed for 4000 naira this means, with a good fcr i will be having 4000 divide by 15 that will give me 266 naira, at a good fcr. Now for first stage fingerlings, u feed one quarter of the body weight this implies 266 divid by 4 this gives 66 naira at fingerlings stage, at juvenile/ JUMBO STAGE you feed one third body weight this implies that 266 divide 3 u get 88 naira , then at melange u feed half body weight this implies that 266 divide by 2 u get 133 naira and at last stage grow out ,u feed optimal fcr which is 266 naira... You can see at each stages, as they grow the amount of money spent increases , so to get the average, u add all the 4 amounts divide by 4 you will get 66 plus 88 plus 133 plu 266 u get total 553 naira . then divide by 4 to get your average amount spend per fish this will sum to 553 divide 4 and you will get 138 naira. Now it dosent end there , i said 130 naira . You should know for example when you stock 1000 fishes , lets say they eat 1 bag in 3 days, and so when u stock 2000 fishes to a lay man, he will say they will eat 2 bags in 3 days ,but its wrong . calculation in fish is not just ordinary mathematics . You have to remove or subtract one quarter in every additional stock ,that is why, in mellange fish farming, when u stock at high density u make more profit , than stocking at normal density. This is the advantages of high super intensive capacity farm . We have many such farms in Nigeria , i dont want to mention names . In my farm, if i tell u i feed locally made feed through out a cycle ,and i get far better results than any foreign feed using super intensive system to get maximum profit. MY profits are far higher than the 280 i calculated ,i know many people will say how come , but we will leave that for another day.So going back to our calculations , if we remove three quarter as we increase stock , the calculated 138 will be 130. but these calculations varies from farms to farms and it also depends on management and system adopted . i hope this cleriffy your doubt , GODBLESS

hello sir, i am also interested in the report.

soft777:
MR Puffynana i will give u a write up tomorrow on the best business report ,in a way that you can start making profit in your first 3 to 4 months and how u can shear your ponds to get monthly sales .your profit will be like your salary . It pains me when i see people leave fish farming cause of looses and it gladens my heart to see new people come in. we shall help by GOD grace , guide you, so that u will not regret starting this business . PROF ROBONSKI PLEASE WELCOME OUR NEW COLLEAGUE TO THE BUSINESS

hello guys,

I wish to express my delight and thanks to you all for your support. I came here some few weeks back and complained about my fries dying after day 6, and I embraced the advice gotten on this thread. It will delight you all to know that I hatched again and my fries are approaching the third week!! They are very active, strong and above all I can say my result is 90% successful. (from hatching to wek 3). I estimate they are well over 10,000! (Will upload pix later).

However, I need more clarifications on my hatchery design. I intend to make more hatching vats, and will like inputs from experts on this matter. I currently have 3 wooden vats of 6ft by 3ft. but I’m considering using plastic tanks i.e (white tank or black GP square tank). Please guys which will you advice? And please give reasons. I have seen a couple of guys on this forum using the white tank and I wonder if it won’t be difficult siphoning due to its depth. I await suggestions.

@soft 777 also u mentioned PH 7 to 7.5 for newly hatched but on this same thread it was suggested we stop using soda ash after hatching. is this not contradictory? from a personal point of view, my water PH is about 5.7 default. i however buffer with soda ash to say 6.8 to 7 and i maintained that. whats ur say on this?

@soft 777...thanks for ur contributions..u be the boss!!! please kindly elaborate on the followind;
1. how to culture artemia
2. how to keep temperature constant and ,
3. where to get a water thermometer for testing and the cost.

regards.

thanks y'all for the recommendations. i'm very sure my artemia is the problem. i will give it another shot with the suggestions and get back to the house....regards.

@barby008 thanks for the response. but please what feed did you have to change to? and where u able to conquer the problem? somone also told me its probably the artemia i use. as i speak i have lost all fries and its really painful. as per weather, i am quite sure its in control. my hatchery is an indoor one. thanks

Hello all, I quite appreciate the good work you guys are doing on this thread. Please I urgently need assistance on my hatching journey so far. Its been so frustrating and annoying to go through the process of hatching and watch my fries die just from day 5. That has been my experience so far. I ensure that all parameters are on point. My water ph is 6.8 and I run a flow through system. I take time to syphon all dirt and feed left overs and maintain a high level of hygiene. However, I notice that my fries start to die in large quantities from day 5 till I have nothing left. Please what can be the cause and how can I resolve this issue.