This article does not apply if you are greenfield where feeding system options are different.
There are many ways to feed prawn.
The move from manual to more concentrated and efficient automatic feeding stations, with acoustic sensing of appetite, is advancing apace in industry.
Shrimp congregate in high densities around these points. A better spread around a pond and more efficient use of surface would increase pond productivity but would requires setting up multiple stations – at elevated costs for replenishment, maintenance, etc.
Automated feed blowers have proven to be pretty destructive on delivery.
So how about latest technology with big payload drones? Deliver replenishment to feeding stations or rig up for direct pond feeding. Acoustic demand signalling from pond could remain. Set drone programmable route, ponds and feed silo with recharge station.
A 20kg payload Dutch industrial drone model
A 200kg payload Norwegian industrial drone model
A 200Kg payload German industrial drone model
A 200kg Russian industrial drone model.
All could be used not just for automatic open pond feeding in semi-intensive shrimp farms but also in fertilizing and even sterilization procedures.
Specific load and release would be required but this can be fairly easily and rapidly designed.
Goes together with the pond parameter drone. The pond shrimp toilet check drone with its daily flyover…
Japanese remote aquaculture technology
Shrimp feed conversion rates in the Middle East are at 1.8 with shrimp culture waters being commented on as having possibly too high a natural productivity. Delivery method of feed in KSA is mainly by blowers.
Pond side blower technology testing 1983. Recommendation was to stop using blowers
….because 10 – 15% of pelleted compound feed got beaten up with quite a bit of fines.
Always considered shrimp feed given into pond as having a % considered as fertilizer. With fertilizer SOP’s having to be adjusted accordingly.
The largest expense has to be reduced without affecting performance of biomass productivity. This does not mean cheapening shrimp feed but it means making it stretch that bit further.
15% of 1.8 would bring FCR down to a reasonable industry FCR level.
Also save 300g of feed for every kg shrimp exported. Work out your savings.
Or even help produce 15% more with same feed volume consumption per year.
Of course its also about how to feed now? Feed trays are more efficient. Robotic in pond feeders of course then!
Well its also about getting the right current in the right direction to centralize the wastes and not get any dead spots.
The size of feed pellet, delivery and frequency pattern also plays its part.
Shrimp being benthic feeder bottom delivery within a slow gentle current would be most appropriate.