Growth and Hematology of Juvenile Piaractus Mesopotamicus Stocked At 10 Up To 40kg/m3 For Twenty-One Days

Raul Machado-Neto, Wiolene Montanari Nordi, Mariana Caroline Furian Pontin, Jéssica Pampolini and Débora Botéquio Moretti
Additional contact information
Débora Botéquio Moretti: Animal Science Department, University of São Paulo, Brazil

Oceanography & Fisheries Open Access Journal, 2018, vol. 8, issue 2, 48-51

Abstract: Pacu Piaractus mesopotamicus, a freshwater fish, has great potential for intensive commercial production, showing resistance to adverse conditions, such as high stocking density. Growth performance and hematological condition were evaluated in juvenile pacu stocked at high density. Juveniles were distributed into different stocking densities: 10, 20, 30 and 40kg of fish/m3 (n=4) and fed with a commercial feed for 21 days. Growth data were collected at 0 and 21 days and blood samples every 7 days. Differences were not detected in performance of pacu under different stocking densities (P > 0.05). Feed conversion rate (3.9±0.5) and specific growth rate (4.0±0.1%/ day) were worse than normally observed at this stage of life, indicating an unsuitable condition. Hematocrit of juveniles stocked at 30 and 40kg/m3 showed higher values than ones at 10kg/m3. Thus, stocking density from 10 up to 40kg/m3 did not affect growth and hematology of pacu after 21 days. However, the low growth rates indicate that all stocking densities could have determined an adverse condition to fish. Considering the high stocking density used in the present work and the intensive management without mortality, we suggest that pacu is very resistant and a promising species for fisheries.

Keywords: juniper publishers:oncology journals; oncology research journals; oncology journal articles; oncology and cancer case reports; oncology journal of clinical and experimental cancer research; open access; open access journals; Oncology International Journal; juniper publishers reivew (search for similar items in EconPapers)
Date: 2018
References: Add references at CitEc
Citations:

Downloads: (external link)
https://juniperpublishers.com/ofoaj/pdf/OFOAJ.MS.ID.555733.pdf (application/pdf)
https://juniperpublishers.com/ofoaj/OFOAJ.MS.ID.555733.php (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:adp:jofoaj:v:8:y:2018:i:2:p:48-51

DOI: 10.19080/OFOAJ.2018.08.555733

Access Statistics for this article

Oceanography & Fisheries Open Access Journal is currently edited by Sophia Mathis

More articles in Oceanography & Fisheries Open Access Journal from Juniper Publishers Inc.
Bibliographic data for series maintained by Robert Thomas ().