Production of Pacific white shrimp juveniles in different stocking densities in a low salinity biofloc system during winter Cover

.blurhash-client-img { display: none !important; }

Production of Pacific white shrimp juveniles in different stocking densities in a low salinity biofloc system during winter

Annals of Animal Science

By: Ivanilson Santos , Magna Santos , Itanael Sousa da Silva and Ugo Lima Silva

Open Access

|Feb 2026

Figures & Tables

Maximum, mean, and minimum air temperature data were monitored in the city during a study with Penaeus vannamei post-larvae in a low salinity biofloc system in winter in northeastern Brazil

Total ammonia nitrogen (TAN, a), nitrite nitrogen (NO2−-N, b), and nitrate nitrogen (NO3−-N, c) variation during a Penaeus vannamei post-larvae cultured under different stocking densities (75, 150, and 301 shrimp m−2) in a low salinity biofloc system in winter in northeastern Brazil, with four replicates

Total suspended solids (TSS, a) and settleable solids (SS, b) variation during a Penaeus vannamei post-larvae cultured under different stocking densities (75, 150, and 301 shrimp m−2) in a low salinity biofloc system in winter in northeastern Brazil, with four replicates

Mean ± standard deviation of growth performance for 75 days of study with Penaeus vannamei post-larvae cultured in a low salinity biofloc system under different stocking densities (75, 150, and 301 shrimp m−2) during winter in northeastern Brazil, with four replicates

Parameters	Treatments

	75 shrimp m⁻²	150 shrimp m⁻²	301 shrimp m⁻²
Initial mean weight (g)	0.04 ± 0.08	0.04 ± 0.08	0.04 ± 0.08
Final mean weight (g)	2.46 ± 0.22^a	1.90 ± 0.21^b	1.54 ± 0.13^c
Weekly growth (g week⁻¹)	0.23 ± 0.02^a	0.17 ± 0.01^b	0.14 ± 0.01^c
Specific growth rate (% day⁻¹)	5.55 ± 0.12^a	5.21 ± 0.15^b	4.93 ± 0.11^c
Final biomass (g)	129.72 ± 9.34^b	143.43 ± 4.23^b	225.78 ± 37.36^a
Feed conversion ratio	1.32 ± 0.10^b	1.81 ± 0.20^a	1.81 ± 0.33^a
Survival (%)	82.81 ± 6.12^a	59.57 ± 7.50^b	57.52 ± 10.08^b

Mean ± standard deviation of water parameters for 75 days of study with Penaeus vannamei post-larvae cultured under different stocking densities (75, 150, and 301 shrimp m−2) in a low salinity biofloc system during winter in northeastern Brazil, with four replicates

Parameters	Treatments

	75 shrimp m⁻²	150 shrimp m⁻²	301 shrimp m⁻²
Temperature (°C)	22.12 ± 0.37	22.09 ± 0.35	22.17 ± 0.35
Dissolved oxygen (mg L⁻¹)	6.38 ± 0.78	6.37 ± 0.83	6.26 ± 0.81
Salinity (g L⁻¹)	1.67 ± 0.08	1.68 ± 0.05	1.67 ± 0.06
pH	7.60 ± 0.10	7.57 ± 0.09	7.55 ± 0.09
Total alkalinity (mg CaCO₃ L⁻¹)	166.67 ± 28.65	160.81 ± 25.62	164.06 ± 23.89
Total hardness (mg CaCO₃ L⁻¹)	454.79 ± 80.34	441.25 ± 72.69	447.71 ± 72.97
Electrical conductivity (mS cm⁻¹)	2.93 ± 0.46	3.02 ± 0.48	2.90 ± 0.47
Total ammonia nitrogen (mg L⁻¹)	0.26 ± 0.05^b	0.30 ± 0.09^ab	0.44 ± 0.28^a
Nitrite-N (mg L⁻¹)	0.08 ± 0.02	0.09 ± 0.02	0.09 ± 0.03
Nitrate-N (mg L⁻¹)	31.40 ± 5.92	31.80 ± 6.37	31.89 ± 7.37
Orthophosphate (mg L⁻¹)	6.26 ± 1.37	6.43 ± 1.29	6.40 ± 1.50
Total suspended solids (mg L⁻¹)	604.15 ± 235.33	654.81 ± 269.33	680.62 ± 281.50
Settleable solids (mL L⁻¹)	16.66 ± 6.58^b	20.04 ± 7.72^a	20.78 ± 8.40^a

DOI: https://doi.org/10.2478/aoas-2025-0100 | Journal eISSN: 2300-8733 | Journal ISSN: 1642-3402

Journal RSS Feed

Language: English

Submitted on: Nov 28, 2024

|

Accepted on: Sep 1, 2025

|

Published on: Feb 16, 2026

Published by: National Research Institute of Animal Production

In partnership with: Paradigm Publishing Services

Publication frequency: Volume open

Keywords:

Penaeus vannamei,

oligohaline water,

low temperature

Related subjects:

Veterinary medicine

© 2026 Ivanilson Santos, Magna Santos, Itanael Sousa da Silva, Ugo Lima Silva, published by National Research Institute of Animal Production
This work is licensed under the Creative Commons Attribution 3.0 License.