Comparison between horizontal and vertical substrate in shrimp super-intensive culture in bioflocs system.

Silveira, Lucas Genésio Pereira da; Rosas, Victor Torres; Krummenauer, Dariano; Poersch, Luís; Wasielesky, Wilson

doi:10.1016/j.aquaeng.2021.102218

Cited by 7 publications

(1 citation statement)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the presence of bioflocs, an improvement in FCR is a recurrent topic, due to the high availability of natural food in the water (Lara et al, 2017;Silveira et al, 2022b). However, in the present study, the better results in terms of FCR were found among 400 to 480 CP treatments (around 1.7).…”

Section: Discussioncontrasting

confidence: 61%

Different protein levels in a super-intensive culture of juvenile Pacific white shrimp (Litopenaeus vannamei) in biofloc systems during the early rearing phase

Braga,

Araújo,

Rosas

et al. 2023

Bol. Inst. Pesca

View full text Add to dashboard Cite

The determination of crude protein level in diets of aquatic organisms allows maximizing growth, decreasing feed costs and improving water quality. A nursery culture of Litopenaeus vannamei was carried out in superintensive biofloc systems using five diets with different protein levels (320 g kg-1 CP, 360 g kg-1 CP, 400 g kg-1 CP, 440 g kg-1 CP and 480 g kg-1 CP); each diet was used in quadruplicates. The experimental period lasted 35 days, and the shrimps (0.59± 0.001 g) were stocked at a density of 600 PL m-³, using 20 experimental units (50 L of useful volume). There were no significant differences in animal survival between treatments (p>0.05). The animals fed with 480 g kg-1 presented higher final weight, SGR when compared to the treatments fed with 320 g kg-1 (p<0.05). Furthermore, feeding shrimp with 32% CP diets results in a reduction in feed utilization and nutrient retention, thus increasing feed costs. Overall, the results show that it is possible to reduce the protein content of L. vannamei diets to up to 360 without affecting the zootechnical performance, survival and antioxidant capacity of the animals.

show abstract

Section: Discussioncontrasting

confidence: 61%