Modeling Nile Tilapia Heterogeneous Growth under Different Stocking Densities during Pre-Grow-Out Stage

IF 1.9 4区农林科学 Q2 FISHERIES

Aquaculture Research Pub Date : 2023-09-14 DOI:10.1155/2023/9347654

V. H. Fuentes-Andraca, M. E. Araneda-Padilla, R. Domínguez-May, M. Gullian-Klanian, E. J. Marin-Coria, J. C. Quintana-Casares, D. Peñalosa-Martinell, G. Ponce-Díaz

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引用次数: 0

Abstract

The heterogeneous and homogeneous growth (HmG) assumptions in an intensive tilapia Oreochromis niloticus pre-grow-out production were evaluated under the different stocking scenarios. Four growth models (von Bertalanffy, Logistic, Pütter, and Gompertz) were tested and modified to include the effect of stocking density and growth difference. Models with homogeneous growth were fitted using a nonlinear regression, while heterogeneous growth (HtG) models were parameterized using quantile (0.05, 0.15, 0.25, 0.50, 0.75, 0.85, and 0.95) regression. According to goodness of fit and validation, the models that best fit homogeneous and HtG were Logistic and von Bertalanffy, respectively, which confirm the existence of the dense dependency effect on growth performance. Density and growth have an inversely proportional relationship. Quantile regression provided greater efficiency in predicting growth of the different groups of individuals in the population. The results obtained can be used by the aquaculture farmer to select stocking management strategies and optimal transfer time for tilapia juveniles.

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不同放养密度下尼罗罗非鱼非均相生长模拟

在不同放养情景下，对尼罗罗非鱼(Oreochromis niloticus)生长前集约化生产的异质和均匀生长(HmG)假设进行了评价。对4个生长模型(von Bertalanffy、Logistic、p tter和Gompertz)进行检验和修正，以纳入放养密度和生长差异的影响。采用非线性回归拟合均质增长模型，采用分位数(0.05、0.15、0.25、0.50、0.75、0.85和0.95)回归参数化非均质增长模型。根据拟合优度和验证度，最适合齐次和HtG的模型分别是Logistic和von Bertalanffy，这证实了生长绩效存在密集依赖效应。密度与生长呈反比关系。分位数回归在预测种群中不同群体个体的生长方面提供了更高的效率。所得结果可为养殖户选择罗非鱼幼鱼放养管理策略和最佳转移时间提供参考。

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来源期刊

Aquaculture Research 农林科学-渔业

CiteScore

4.60

自引率

5.00%

发文量

464

审稿时长

5.3 months

期刊介绍： International in perspective, Aquaculture Research is published 12 times a year and specifically addresses research and reference needs of all working and studying within the many varied areas of aquaculture. The Journal regularly publishes papers on applied or scientific research relevant to freshwater, brackish, and marine aquaculture. It covers all aquatic organisms, floristic and faunistic, related directly or indirectly to human consumption. The journal also includes review articles, short communications and technical papers. Young scientists are particularly encouraged to submit short communications based on their own research.