Search results for: Hassan Sabry‐Neto

Items from 1 to 7 out of 7 results

article

Effect of dietary graded levels of astaxanthin krill oil and high protein krill meal on the growth performance and stress resistance of post larval Litopenaeus vannamei under hyper‐intensive nursery culture

Alberto Jorge Pinto Nunes, Artur Nepomuceno Soares, Hassan Sabry‐Neto, Lena Burri

Aquaculture Nutrition > 27 > 2 > 327 - 341

This study evaluated the effect of graded dietary levels of astaxanthin krill oil (AKO) and high protein krill meal (HPK) on the growth performance and stress resistance of postlarval (PL) Litopenaeus vannamei. Shrimp of 3.6–2.5 mg body weight (BW) were stocked in outdoor and indoor tanks at 2,371–2,504 PLs m⁻³, respectively. Diets contained 10.0, 30.0 and 50.0 g/kg AKO (outdoor) and 30.0, 50.0 and...

article

Crude protein in low‐fish meal diets for juvenile Litopenaeus vannamei can be reduced through a well‐balanced supplementation of essential amino acids

Alberto J. P. Nunes, Hassan Sabry‐Neto, Karthik Masagounder

Journal of the World Aquaculture Society > 50 > 6 > 1093 - 1107

The use of supplemental essential amino acids (EAAs) has been shown to provide an opportunity to minimize excess levels of crude protein (CP) in animal feeds. The present study investigated the effect of reducing the amount of CP in low‐fish meal diets (5%) for juvenile Litopenaeus vannamei. Four sets of diets were prepared containing (% on a fed basis, mean ± SD) 31.24 ± 0.71, 33.70 ± 0.41, 36.90...

article

Feed preference and growth response of juvenile Litopenaeus vannamei to supplementation of marine chemoattractants in a fishmeal‐challenged diet

Alberto J. P. Nunes, Hassan Sabry‐Neto, Severino Oliveira‐Neto, Lena Burri

Journal of the World Aquaculture Society > 50 > 6 > 1048 - 1063

This study compared the feed preference and growth response of Litopenaeus vannamei to chemoattractants. A diet with 3% fishmeal was supplemented with either 3% salmon meal (POS), 3% soy protein concentrate (NEG), 3% krill meal (KRM), 3% squid meal (SQM), 3% shrimp head meal (SHM), 3% shrimp meal (SM), 3% squid liver meal (SLM), or 5% liquid sardine hydrolysate (SAH). Shrimp with a body weight (BW)...

article

Multiple feedings enhance the growth performance and feed efficiency of juvenile Litopenaeus vannamei when fed a low-fish meal amino acid-supplemented diet

Alberto J. P. Nunes, Hassan Sabry-Neto, Francisco Hélio Pires Silva, Adhemar Rodrigues Oliveira-Neto, more

Aquaculture International > 2019 > 27 > 2 > 337-347

In the coming years, supplementation of crystalline amino acids (CAAs) will become a standard practice driven by the trend towards low-fish meal diets. We have evaluated the effect of feeding juvenile L. vannamei several times a day versus two (2×) and four (4×) times using a low-fish meal diet supplemented with CAAs. A total of 1632 shrimp of 1.06 ± 0.16 g were stocked in 16 outdoor tanks of 1 m³...

article

Minimum water exchange spares the requirement for dietary methionine for juvenile Litopenaeus vannamei reared under intensive outdoor conditions

Felipe Nobre Façanha, Hassan Sabry‐Neto, Claudia Figueiredo‐Silva, Adhemar Rodrigues Oliveira‐Neto, more

Aquaculture Research > 49 > 4 > 1682 - 1689

We examined if minimum water exchange could spare dietary methionine (Met) required for maximum growth performance of juvenile Litopenaeus vannamei reared in an intensive outdoor system. Shrimp of 1.98 ± 0.13 g were stocked at 70 animals/m² and reared for 72 days in 50 tanks of 1 m³ under flow‐through (14.4% a day) and static (1.4%–2.9% a day) green‐water conditions at 32.0 ± 3.7 g/L salinity. Five...

article

Spirulina meal has acted as a strong feeding attractant for Litopenaeus vannamei at a very low dietary inclusion level

José Fernandes Silva‐Neto, Alberto Jorge Pinto Nunes, Hassan Sabry‐Neto, Marcelo Vinícius Carmo Sá

Aquaculture Research > 43 > 3 > 430 - 437

The present work aimed at studying the growth performance and feeding preference of Litopenaeus vannamei juveniles fed on diets supplemented or not with Spirulina meal. Litopenaeus vannamei juveniles (3.89 ± 0.25 g) were stocked for 72 days in 28 round 500‐L tanks at 44 shrimp/tank (77 juveniles/m²). The diets were supplemented with 0.5% of a commercial feed attractant (C25 and C50) or with Spirulina...

article

Growth performance of the white shrimp Litopenaeus vannamei reared under time- and rate-restriction feeding regimes in a controlled culture system

Alberto J.P. Nunes, Marcelo V.C. Sá, Esaú Aguiar Carvalho, Hassan Sabry Neto

Aquaculture > 2006 > 253 > 1-4 > 646-652

When shrimp prices are low there can be economic pressure to restrict or cease feeding temporarily. Nevertheless, there is little or no information available on the effects of moderate or severe feed restriction on growth performance of Litopenaeus vannamei. The present study aimed at evaluating the effect of time- (TR) and rate-restricted feeding (RR) on the growth performance of L. vannamei raised...

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Search results for: Hassan Sabry‐Neto

Effect of dietary graded levels of astaxanthin krill oil and high protein krill meal on the growth performance and stress resistance of post larval Litopenaeus vannamei under hyper‐intensive nursery culture

Crude protein in low‐fish meal diets for juvenile Litopenaeus vannamei can be reduced through a well‐balanced supplementation of essential amino acids

Feed preference and growth response of juvenile Litopenaeus vannamei to supplementation of marine chemoattractants in a fishmeal‐challenged diet

Multiple feedings enhance the growth performance and feed efficiency of juvenile Litopenaeus vannamei when fed a low-fish meal amino acid-supplemented diet

Minimum water exchange spares the requirement for dietary methionine for juvenile Litopenaeus vannamei reared under intensive outdoor conditions

Spirulina meal has acted as a strong feeding attractant for Litopenaeus vannamei at a very low dietary inclusion level

Growth performance of the white shrimp Litopenaeus vannamei reared under time- and rate-restriction feeding regimes in a controlled culture system

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