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
On shrimp and on you the farmer.
Art not sceince. Trust instincts. Be at one with your charges. Chill.
The higher the density the higher the risks the higher the need to get all other lessons previously mentioned correct…
Nursery ponds – yes use screening and population controls in steps along culture.
Multiple benefits including increased biosecurity and disease control.
A technology initially developed and used in South America because there were no hatcheries and purchasing wild seed was seasonal.
Granmar farm was a pioneer also to trial shrimp seed from its sister company, Semacua – the first commercial shrimp hatchery in the world
Using nurseries removed the seasonality of farmed shrimp culture pre hatchery seed and allowed for test bed for performance of pioneering hatchery produced….
Worrisome when so called shrimp industry leaders jump into the news media bandwagon in this way.
Surveillance and testing suggestions good for contact tracing but not a solution to any virus.
Also fear mongering is unhelpful and counter productive.
Perhaps an underlying agenda here needs some good quality investigative reporting?
Global vannamei prices set to increase – good news since vannamei shrimp prices have been at record lows for past 2 years….
BUT for those with prawn fear it may be that your bio-security is not up to scratch, you are forcing your culture systems (intensive, no dry-out period?), you are using cheaper feeds (poor nutrition compromises shrimp) or you are growing vannamei in too cold a water environment – yes over 28 to 30 degrees centigrade required for our Pacific vannamei species.
Of course it could be just an inborn error in inmunity developed within the Chinese pacific vannamei genetic program even…..carried to culture with seed and expressed by some sort of trigger.
Below some useful scientific papers but dunno how useful practically. Guess solution is similar to 2014.
Development of a cost-efficient micro-detection slide system for the detection of multiple shrimp pathogens.
ENACA important update here from Feb 20th
Nature scientific report 2017
Yes shrimp industry has plenty experience…..arthropods don’t have same antiviral immune system as human animals.
Vaccine dips don’t work like on fish.
Other options have had to be developed revolving around getting reaction directly in shrimp via feeding and nutrition.
…..this is as advanced animal husbandry technologies as one can imagine over 35+ years while bring tested on billions (of prawn of course)…
Here is article link…