Vannamei constituted the highest production value of all aquacultured species in 2017, $26.7 billion – $10bn more than the overall value of farmed Atlantic salmon
A US shrimp farm project based on a non US genetics breeding line combined with recent UK disease problems from US (and OIE) approved exotic shrimp imports puts into question the current US exotic shrimp breeding program efficacity and, in fact, the whole controlled movement of live vannamei globally.
Growing exotic shrimp in US using a genetic line that is also exotic to US is certainly one way to restart the local shrimp aquaculture industry.
Interesting that future developments are notably focussing on shrimp aquaculture.
DNA marking of consumer product to origin and broodstock will give full traceability along supply chain.
All processes at each step need to be transparent as well – for marketing.
Shame shrimp is talked about and picture shows what looks like fish eggs….!
20% drop is not that drastic and will not have global impact. India is not the only player and we have seen this all happen before out of other producer countries over past two decades…
…..not clear from headlines:
A. If a lower stocking density the target could be faster growth to bigger sizes on less feed and for better sales pricing. Still same biomass volume harvest just bigger shrimp.
B. If it is same stocking density but lower surface area seeded then same small sizes being chased. Small sizes are cheap currently but competition is there. If prices go up then farmers can always harvest early.
So while some people consider this will have a global impact unfortunately they are newly understanding how the global shrimp farming industry flexes…
…and I don’t mean age but male ejaculation. Yes 21 a month is the magic number to reduce cancer risks as in Spanish health article this past Friday.
Now for vannamei shrimp we know that sperm sacs, after ejaculation or removal for artificial insemination (AI), take around 10 days to regenerate.
Viability of new sperm is better if male vannamei shrimp are kept at lower temperatures during regeneration.
Interestingly when the natural growth plateau in culture hits also around the time one can noting male sperm sacs forming although sexual differentiation can be noted earlier.