Microalgae and probiotic bacteria as biofloc inducers in a hyper-intensive Pacific white shrimp (Penaeus vannamei) culture
| Autor: | Juan M. Pacheco-Vega, Pablo Misael Arce-Amezquita, Francisco J. Jiménez-Ordaz, Dariel Tovar-Ramírez, Maurilia Rojas-Contreras, Marco A. Cadena-Roa |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Navicula sp
Lactobacillus fermentum Microorganism Penaeus vannamei biofloc inducers Schizochytrium 010501 environmental sciences Aquatic Science Oceanography 01 natural sciences Feed conversion ratio Dry weight Penaeus Food science Grammatophora sp 0105 earth and related environmental sciences biology Chemistry 04 agricultural and veterinary sciences biology.organism_classification Shrimp Navicula Schizochytrium sp 040102 fisheries 0401 agriculture forestry and fisheries |
| Zdroj: | Latin american journal of aquatic research v.49 n.1 2021 SciELO Chile CONICYT Chile instacron:CONICYT |
| ISSN: | 0718-560X |
| Popis: | Biofloc systems in Pacific white shrimp (Penaeus vannamei) culture generate floccules that remove wastes, and hence, biofloc formation is promoted for shrimp production. This study evaluated the induction of biofloc formation using microalgae and probiotic bacteria in hyper-intensive Pacific white shrimp culture. The experiment was performed for six weeks in tanks (28,000 L each) stocked 350 ind m−3 and weight of 1400 ± 30 mg. Three treatments were assessed: 1) with two diatoms: Grammatophora sp. and Navicula sp., 2) with Navicula sp., and 3) without diatoms. All treatments were added with Schizochytrium sp. and Lactobacillus fermentum TD19. The following parameters were monitored during culture: ammonium, nitrites, nitrates, environmental variables, floccules volume, microorganism presence, the bromatological composition of biofloc, and growth performance parameters of P. vannamei. Our results indicated that the three induced biofloc presented a similar volume (8.34 ± 4.8 mL L−1) and ammonium concentration ( |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|