De-veining of the prawn – Aussie import regulations…..off with their heads then also?

Australia to impose new regulations on raw shrimp imports from July 1st……..no veins allowed on raw shrimp entering. Imports need to be in sealed packaging.

Wonder what will happen to bulk importing for secondary processing? Most value addition offshore – as is currently. Increase usage of SUP – single use plastics (SUP) for food safety and infectious shrimp disease control.

This move is to control entry and a possible spread of EHP into Australia of vibrio in the shrimp mid-gut – but not sure how that then affects locally farmed shrimp – could be those pesky fishermen using the raw prawn as bait in fishing……..but is the Australian shrimp farming bio-security setup that poor and husbandry not sufficiently well managed to overcome issues. Is it part of state intervention in an exclusionary lock down health mentality. Certainly may affect local markets and be fall foul of WTO if applied to same shrimp species cultured in Australia.

Coronavirus: Lesson 7 from the shrimp industry – stress reduction

On shrimp and on you the farmer.

Art not sceince. Trust instincts. Be at one with your charges. Chill.

Coronavirus: Lesson 6 from the shrimp industry – density

The higher the density the higher the risks the higher the need to get all other lessons previously mentioned correct…

Coronavirus: Lesson 5 from the shrimp industry – nurseries

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….

Coronavirus: Lesson 4 from shrimp industry – testing

Test pro-actively with prevention in mind.

At hatchery check breeders and history to align with your requirements.

At farm level look at incoming PL’s history.

Use the salinity stress testing we developed in the mid 1980’s and explained here as a practical guide in the field.

Do not believe marketing propaganda, like the one below that tells you things like :

The most important quality factor for shrimp PL is not detectable by either visual exam or stress test.  It is whether the PL are free of listed pathogens (such as WSSV, TSV, IHHNV etc).

Clean PL (i.e. SPF) can be determined two ways: 1.  By PCR screening which is expensive, highly variable and therefore ultimately unreliable or 2.  Buying from reputable supplier who uses certified SPF broodstock. HHA Inc.”

Clean SPF PL’s are not of any use if your culture and husbandry systems are not well managed.

SPF’s program’s failed in the case of Ecuador but of course pathogen testing is a good move at hatchery level – pretty useless at farm level as the cure is prevention and corrective action is nigh on impossible.

With bio-security, water quality, feed quality and husbandry being more important.

Forensically it is not that hard

Coronavirus : Lesson 3 from the shrimp industry – accept a mortality rate…

Yes accept that there is a natural mortality in your system.

Empirical and quantitative survival function calculated have been postulated since the 1980’s and papers even written .

In hatcheries and on farms robust shrimp are needed to perform.

Culture stress management is critical.

Coronavirus : Lesson 2 from shrimp industry – bio-security.

An important part of prevention. At individual level and based on the assumption that there will always be pathogens out there on this planet and in the wild.

Shrimp farmers beware.

Just because you think you are getting something “free from” does not mean that a poor culture system will not convert something that is undetectable to a high enough load and trigger a negative response in your shrimp.

Bio-security has when applied to shrimp aquaculture (by scientists) seems to be defined only as the practice of exclusion of specific pathogens from cultured aquatic stocks in broodstock facilities, hatcheries, and farms, or from entire regions or countries for the purpose of disease prevention.

However bio-security is also about having secure well managed culture conditions that allow for pathogens not to overload your system. Something that scientists do not know how to do. Why?

…because they are not shrimp farmers.

It is about flattening the curve during culture not just going for an isolated contained system – lock down in any other term.

Your culture system needs to be adapted to your very own conditions.

What can help in bio-security is minimizing the risks and load of your culture system and that you are capable of managing – just like a public health body for shrimp.

So density – to avoid crowding. Good quality seed with no underlying health conditions. Good quality nutrition to avoid obesity. If intensive and cannot avoid crowding then lined ponds to stop build up of hot spot carriers. Use of PL stress tests and nurseries to test robustness and free from status.

Water filtration as a bio-security measure to not only avoid specific pathogens entering but also to avoid contamination or alterations to water quality that could affect the biological growth of shrimp. Just as pollution can affect response to

Do not forget that shrimp cannot be vaccinated and their growth and survival depends on your giving them the best opportunities in life to flourish and perform – for you.

In the larger picture there are and will always be base-line levels viruses in a population. Even undetectable.

Avoid the stress of having to report to the UN OIE who have a zero tolerance burn and destroy all scorched pond policy. They will come in and destroy your livelihood saying it is for the greater good of the shrimp industry population. Of course they are in positions that this sort of action will not affect their livelihoods.

Burn all strategy instead of manage all strategy is probably because the US SPF shrimp program (dare I say commercial technology?) tha is the only one with a voice and a vote in the UN OIE.

Supported by the Dutch at EU animal health level – loving their containment / intensive / exclusionary model – that opens up to an attempt to regulate and mange industry through a genetic approach….

Both countries have, to all and intense and purpose, zero shrimp farmers but an inordinate amount of power over shrimp farmers.