A comparative study on Nile tilapia under different culture systems: Effect on the growth parameters and proposition of new growth models

Autor(es)

Santos, Juliana Ferreira ^{[1, 2]} ; Dias Assis, Caio Rodrigo ^{[1, 3]} ; Siqueira Soares, Karollina Lopes ^[1] ; Queiroz Rafael, Ramires Eloise ^{[1, 2]} ; Oliveira, Vagne Melo ^[4] ; de Vasconcelos Filho, Jonas Eloi ^[5] ; Penha Franca, Renata Cristina ^[1] ; Lemos, Daniel ^[6] ; Bezerra, Ranilson Souza ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Pernambuco, Dept Bioquim & Biofis, Lab Enzimol LABENZ, Recife, PE - Brazil

^[2] Univ Fed Rural Pernambuco, Unidade Acad Serra Talhada, Lab Aquicultura & Biotecnol LABITEC, Serra Talhada, PE - Brazil

^[3] Univ Fed Pernambuco, Dept Oceanog, Lab Compostos Organ Ecossistemas Costeiros & Mari, Recife, PE - Brazil

^[4] Univ Fed Rural Pernambuco, Dept Morfol Fisiol Anim, Lab Tecnol Prod Bioat LABTECBIO, Recife, PE - Brazil

^[5] Univ Fed Rural Pernambuco, Dept Estat & Informat Aplicada, Recife, PE - Brazil

^[6] Univ Sao Paulo, Inst Oceanog, Lab Aquicultura Marinha LAM, Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Aquaculture; v. 503, p. 128-138, MAR 30 2019.
• Citações Web of Science: 0

Resumo

Tilapia culture presents high potential for income generation and hunger alleviation in developing countries. Suitable culture planning can help achieve such goals sustainably. This work aimed to comparatively evaluate the influence of semi-intensive and intensive cultivation systems of O. niloticus on condition factor, its derivatives and established growth models (Von Bertalanffy - VBGF, sigmoid Logistic - SLogistic, Brody and Gompertz) as well as on two proposed models (Michaelis-Menten hyperbolic growth - MMHG and hyperbolic Logistic - HLogistic). A linear estimation of VBGF parameters was also proposed. Weight-length relationships of tilapia were not significantly altered by the systems. Relative weights from the present study were higher in 9 out of 14 comparisons with tilapia from other natural environments and cultivations. Condition factor (K), K-mean K-rel and relative weight (W-rm) proved to be useful tools when assessing growth. In size-at-age analyzes (total length), VBGF and MMHG were the best models for intensive system whereas Gompertz and VBGF were selected for semi-intensive. Although length-at-age analyzes did not show significant differences between the systems and the growth indexes (empty set and P) were slightly higher in cages than in ponds, the comparison between VBGF and Gompertz (best models for weight datasets) - connected to the condition factor investigation and to the importance of natural food - suggested that semi-intensive system specimens would reach commercial size earlier based on weight in the present conditions. The adoption of MMHG model when indicated suggests a wide field of research that could allow making inferences expanding the amplitude of growth studies. (AU)

• Processo FAPESP: 16/10772-9 - Criação do bijupirá (Rachycentron canadum) no litoral Sudeste do Brasil (SP, RJ) durante a fase de engorda: alimentação e nutrição, interações com o ambiente e a economia em modelos existentes (PeixeMar)
• Beneficiário: Daniel Eduardo Lavanholi de Lemos
• Modalidade de apoio: Auxílio à Pesquisa - Regular