RESPOSTA FITOPLANCTÔNICA Í­â‚¬ DIFERENTES FONTES DE CARBONO E RELAÇÃ­-ES C:N NA ALEVINAGEM DE TILÁPIA CULTIVADA COM BIOFLOCOS

Silva, Ugo Lima; Vieira, Lucas Conceição; Mello, Marcus Vinicius Lourenço de; França, Elton José de; Falcon, Dario Rocha; Correia, Eudes de Souza

doi:10.20950/1678-2305.2018.255

Cited by 3 publications

(1 citation statement)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As for primary productivity, the applications of molasses in water have contributed to the phytoplankton growth. Silva et al (2018) concluded that molasses, more than sugar or cassava starch, was the organic carbon source that most benefited the phytoplankton in tilapia BFT tanks. In our study, as the pH of water was lower in the tanks receiving molasses only, their concentrations of free CO 2 were higher in relation to the tanks with the limestone applications.…”

Section: Water Qualitymentioning

confidence: 99%

Application of limestone-molasses blends in Nile tilapia rearing tanks

et al. 2023

View full text Add to dashboard Cite

The work aimed at determining the effects of applying different blends between liquid molasses and agricultural limestone on water quality and growth performance of Nile tilapia juveniles, Oreochromis niloticus. The study employed 24 indoor tanks of 100 L and 24 outdoor tanks of 250 L. Four control groups were set up (no product applied, only molasses, only limestone, molasses-limestone blend with 48% limestone but no fish) and two experimental groups (molasses-limestone blends with 32% and 48% molasses), with four replicates each. Over 11 weeks, the water quality was monitored systematically. The 24-h cycle monitoring of temperature, pH, specific conductance, dissolved O2 and total alkalinity were carried out at the 8th week. The blends between molasses and limestone accelerated the dissolution rate of the agricultural limestone in water. The blend containing 48% molasses led to greater increases in water alkalinity and pH in relation to tanks with only limestone applications. However, the molasses-limestone blend applications impaired the Nile tilapia growth performance, especially in the outdoor tanks. While the fish yield was 25.1 g m-3 day-1 in the molasses outdoor tanks, it was equal to 22.8 g m-3 day-1 in the molasses (32%)-limestone units (P<0.05). It has been concluded that the blending between limestone and molasses brings no clear benefits to Nile tilapia’s rearing tanks when compared to the limestone-only tanks.

show abstract

Section: Water Qualitymentioning

confidence: 99%