After 2 weeks from reception at Pl-10, our SPF vannamei shrimp average 280 mg at a stocking density of 1,500 Pl's/m3 in a truly ZERO water exchange closed RAS using BFT with artificial saltw...

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After 2 weeks from reception at Pl-10, our SPF vannamei shrimp average 280 mg at a stocking density of 1,500 Pl's/m3 in a truly ZERO water exchange closed RAS using BFT with artificial saltwater.

11 comments

Liked by Nelson D. Gerundo and 6 others

Nelson D. Gerundo

last year

Very nice video. So many shrimps and a very beautiful facility... I can imagine it and the humming symphony of the roots blower blended like a musical background to the cinematic scene... adding suspense and a touch of drama to it.

Fantastic!

Nelson D. Gerundo

last year

Hello Jorge,

Teixeira and Guerrelhas (2014) reported an average weight of 43 milligrams for Penaeus vannamei at PL 22.

https://www.aquaculturealliance.org/advocate/what-size-are-your-postlarvae/

Your postlarvae at about the same age weighing an average of 280 milligrams have remarkably grown fast. What was the average weight of your vannamei postlarvae at PL10?

Nelson

Nelson D. Gerundo

last year

Hello Jorge,

What is the brand and model of the weighing scale that you used to get the weight of your 280 mg vannamei postlarvae?

Nelson

Nelson D. Gerundo

last year

Hello Jorge,

Oscar Zelaya et al. (2007) reported a batch delivery weight of 0.96 mg, 1.23 mg, and 1.36 mg with an overall average of 1.18 mg for Penaeus vannamei at PL 8 to PL 9.

https://www.researchgate.net/profile/Donald_Davis5/publication/227690507_Growout_of_Pacific_White_Shrimp_Litopenaeus_vannamei_Stocked_into_Production_Ponds_at_Three_Different_Ages/links/5ecbb5e892851c11a888568b/Growout-of-Pacific-White-Shrimp-Litopenaeus-vannamei-Stocked-into-Production-Ponds-at-Three-Different-Ages.pdf

When they reared these batches of vannamei postlarvae in nursery tanks for 14 days and 21 days, the average weight was only 10.5 mg and 16.4 mg with an FCR of 1.6 and 1.5, respectively.

Your vannamei postlarvae PL10 grew to 280 mg juvemiles after 14 days?

Nelson

Nelson D. Gerundo

last year

Hello Jorge,

For the weighing of the vannamei postlarvae, Oscar Zelaya et al. (2007) used a laboratory electronic analytical scale balance. Specifically, the one they used was an A&D 182A model as linked below.

https://cdn.dotmed.com/images/listingpics/2856175.jpg

Shrimp hatchery will not normally have an analytical scale balance. Much more a shrimp farm.

Do you have an analytical scale balance at your farm?

Nelson

Fabio Higa

last year

Congratulations Jorge Lango !! Please keep us update with your results. I´m sure you will get wonderfull indexes. Are you planning to keep this density till growout? Best regards, Fabio

Nelson D. Gerundo

last year

Hello Jorge,

You must have purchased vannamei postlarvae that came from broodstock with a super-fast growth trait.

Do you know the source of the broodstock of your vannamei PL 10?

Nelson

Jorge Lango

last year

Nelson D. Gerundo Well, this growth rate is consistent to what I used to get back when I was managing SIS in Florida. In my nursery area there in SIS, I sued to get 2 gr juvenile in 31-33 days. These little guys are starting to show all their genetic growth potential. I have my RAS at 32 C.

Jorge Lango

last year

Nelson D. Gerundo will request that info from my technician for you.

Jorge Lango

last year

Nelson D. Gerundo I am using Benchmark´s Pl´s. Was not possible for me to bring the new SIS line due logistics because the covid. However I am very happy with Benchmark so far.

Jorge Lango

last year

Fabio Higa Hi Fabio...thanks...I will be reducing density as they keep growing. Currently, my small R&D unit is not equipped to sustain large shrimp biomasses. I am planning to keep it at a maximum of 5-6 Kg/m3. This unit is more to test the well water quality, feeds/additives, "dog and pony show" for the investors (Marketing) and future technicians trainee program.

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