‘Self-cleaning’ concrete could keep buildings looking new.

Yes perfect Shrimpcrete for shrimp hatchery tanks.

Or RAS facilities, floating salmon closed culture systems – capability to keep bacteria clean – does it work in seawater condition me wonders…?

Source: American Chemical Society

Algal and PL counting goes Smart…

Not for the first time…..

Who remembers those shrimp PL counting machines that Shirley Metzger from Sort-rite, Texas, was promoting back in 1990s.

Mixed reviews about the Xpertsea in the shrimp industry. But v.2 might show better promise than v.1 6 years ago.

What does it do – counts shrimp and can count algae.

With toxic algae checking a big thing there is a device that detects harmful algae densities in 15 minutes.  NUS Research News – density counts on algae and runs off a smartphone. 

Shrimp MultiPath es una nueva plataforma de evaluación de patógenos establecidos para transformar la producción mundial de camarones…

Will not “transform” global production but a useful tool to support shrimp industries continued growth. While checking on viruses cheaply it will not mean shrimp farmers can relax. Not a silver bullet and look what happened recently with disease in UK imported shrimp PL’s from USA – under SPF paradigm and surely imported with appropriate health certifications……

So shrimp farmers, approach as another service to your business, not unlike micro-encapsulated shrimp larval feed or the implementation of IQF technology in shrimp processing.


Trillions or is it quadrillions of shrimp….market price ( not disease! ) is producers worry.

One of the few industries where trillions of animals have been raised and managed.

Compare one 6 kilo salmon every three years. For that weight and in that time one is managing a thousand 20g shrimp. The numbers coming out of shrimp hatcheries globally are in the billions and have been for many decades.

With a 12 month turn over on life cycle (to gather resistance and to shake off any diseases), a geographic global farming spread, different seasonality and the possibility to shore up supply chain with a finished product freezing capability of up to 24 months, there is an easy bounce back from any diseases.

Which is why prices stay more or less within a fixed band. With the ability to buy same product from many different localities there is a great flexibility of offer to the demand in markets. This can mean playing producers off each other to get best deal and results in commodity low prices.

Genetic focus in hatcheries started for vannamei started with survival rates – a necessary competitive step when trying to compete with the economics of wild high performing seed. It was also because hatcheries were initially paid bonuses on numbers coming out not on quality of larvae.

This is why the stress test on shrimp coming out of hatcheries was developed. 

However, and in reality, it has always been a numbers game. This same numbers game can overcome the survival quest and growth performance of shrimp is really the main requirement from farmers.

So all this talk about shrimp disease from people trying to get either into the industry or tout their positioning, is bullshit in the bigger picture. The main worry is low commodity prices globally and lack of downstream support by importers and distributors to promote farmed shrimp into the markets.

The genetics and 4.0 guys need to stop playing the disease card and look at shrimp growth and adaptation to alternative protein conversion capabilities. 

Those pesky shrimp exclusion tactics for getting bio-security grading.

Shrimp hatcheries since the 1980’s ran on positive pressure. Incoming aeration from external source for all culture tanks filtered. 

Interestingly preventative systems keep coming up.

To be prawn under a wondering star…Ecuadorian shrimp genetics.

You’ve all seen the recent news that has arisen about Hendrix investment with Nutreco into Ecuador.

Wonder, will or should Hawaiian SPF breeders be allowed into Ecuador? Guess no harm as long as not obliged to use. BUT if they grow faster?

Not to worry the Ecuadorian growout industry already upping the game with local shrimp, bred, like in SE Asia for growth over survival.

What happens when SPF come out of facility – since growout system design is not containment. Is it then genetics. Of course, yes.

Marks & Spencers supermarkets testing DNA in shrimp. Link back to broodstock origin. Means traceability and exclusions and limitations too.

Could lead to some interesting claims.

But, the historic source of Kona Bay exotic Pacific white vannamei strain? Has it been genetically manipulated, enhanced, edited? Or just selected.

Does this project in Ecuador join George Chamberlain, from IAI, and president of GAA (the BAP program) with Jose Villalon, CSR at Nutreco, who managed the rival WWF dialogues (the ASC program).

Macrobio was the hatchery for the Benji Rosales/Caterpillar Ecuador shrimp group operation. However understand the processing and export is now separate from the growout farming. Target quality market headson China.

The hatchery was designed by Dan Lee (BAP GAA) and had HLB setup the algae department. Carol Cozzi, now growing seahorses, the larvae culture. Many notable locals on team still in industry.

Lest we forget – SPF removed from an SPF certified facility are not SPF anymore!

So how many certified SPF shrimp grow-out facilities for commercial production are there on the planet?

It seems more like a breeders/hatchery movement.

Not sure I know of many. While many may use SPF as exclusion, limitation and thus regulatory purposes don’t know any certified SPF through to harvest.

Australian comments on blog stop at SPF quarantine and hatchery facilities.