Combined effects of water temperature and salinity on growth and feed utilization of juvenile Nile tilapia Oreochromis niloticus (Linneaus)

Likongwe, Jeremy; Stecko, Timothy D.; Stauffer, Jay R.; Carline, Robert F.

doi:10.1016/s0044-8486(96)01360-9

Cited by 157 publications

(111 citation statements)

References 23 publications

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“…As this 64 d cultivation experiment shows, different cultivation temperatures (Azaza et al, 2008;Likongwe et al, 1996), Amphiprion clarkii and Oreochromis niloticus X O. aureus (Hassanen et al, 2014). Generally, the growth rate of aquatic animals rises with increasing temperature and decreases as the temperature rises past the suitable range (Russell, Fish and Wootton.…”

Section: Discussionmentioning

confidence: 83%

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Cheng¹,

Gou²,

Q³

et al. 2016

Turk. J. Fish. Aquat. Sci.

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The effects of different water temperatures on the growth, feed intake and antithrombin activity of P. manillensis were studied in order to identify the optimum water temperature for growth. After P. manillensis were cultured at the water temperatures of 18, 22, 26, 30, 34, 38 °C and room temperature (RT), final body weight (FBW), weight gain rate (RWG), specific growth rate (SGR), feed conversion rate (FC), average feed intake per time (AFI), average feed intake rate per time (AFIR), survival rate (SR) and antithrombin activity (AT) were measured for 64 days. The result showed that FBW, RWG, SGR, AFI, and SR of P. manillensis presented different growth indices that were higher than other experimental treatments at 26-30 °C (P<0.05), while FC was lower than others. The optimal water temperature range for P. manillensis was 26-30 °C, and the results indicate that the maximum AT (295.52 U) occurs at 34 °C (P<0.05). Keywords:The optimal water temperature, specific growth rate, feed conversion rate.

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Section: Discussionmentioning

confidence: 83%

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Cheng¹,

Gou²,

Q³

et al. 2016

Turk. J. Fish. Aquat. Sci.

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“…Os resultados obtidos com a tilápia do Nilo variedade Supreme demonstram haver um comportamento quadrático (P < 0,05) entre o maior número de indivíduos machos e o aumento da temperatura, com nível para melhor desempenho em temperatura de 32 e 34 o C, confirmando os resultados já obtidos por diversos autores em estudos prévios com tilápias do Nilo (BAROILLER et al, 1995;LIKONGWE et al, 1996;ABUCAY et al, 1999;JACOBS;MÉLARD, 2001;KARAYÜCEL et al, 2003;BORGES et al, 2005;BEZAULT et al, 2007;HÖRSTGEN-SCHWARK, 2007;AZAZA;DHRAÏEF;KRAÏEM, 2008;ROUGEOT et al, 2008; ANGIENDA; AKETCH; WAINDI, 2010; WESSELS; SAMAVATI; HÖRSTGEN-SCHWARK, 2011), bem como para outras espécies de tilápias (DESPREZ; MÉLARD, 1998;BARAS et al, 2000;WANG;TSAI, 2000;BARAS et al, 2002). Figura 3.…”

Section: Resultsunclassified

Inversão sexual de alevinos de tilápias do Nilo (Oreochromis niloticus) variedade Supreme, submetidos a diferentes temperaturas durante fase de diferenciação sexual

et al. 2013

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ResumoEste experimento avaliou os efeitos da temperatura na inversão sexual, sobrevivência e presença de deformidades em larvas de tilapia submetidas aos seguintes tratamentos controle (28ºC + ração 60 mg kg -1 de 17 α-metiltestosterona), 28, 30, 32 e 34ºC. Os resultados demonstraram diferença estatística entre a proporção de machos, sendo que as temperaturas controle, 32 e 34ºC (98; 91; 96 %, respectivamente) apresentaram resultados superiores aos obtidos para os tratamentos 28 e 30ºC (71 e 82 %). A sobrevivência observada nos diferentes tratamentos foram 90,74; 90,49; 88,20; 85,43 e 82,16 para o controle, 28, 30, 32 e 34ºC, respectivamente, sendo que houve diferença estatística entre os tratamentos 32 e 34 o C, somente quando estes foram comparados com o controle. Na análise das radiografias não foi possível observar presença de alterações morfológicas nos peixes submetidos aos diferentes tratamentos. Com este experimento, concluiu-se que as temperaturas de 32 e 34ºC foram capazes de masculinizar larvas geneticamente fêmeas, e que não houve incremento na mortalidade e na presença de deformidades que possam ser atribuídas aos tratamentos. Essa técnica é uma alternativa para a utilização de hormônios esteroides. Palavras-chave: Inversão sexual, sobrevivência, alterações morfológicas, proporção sexual AbstractThis experiment evaluated the effects of temperature on sex inversion survival and presence of deformities in larvae of tilapia subjected to the following treatments control (28ºC + diet 60 mg kg-1 of 17 α-methyltestosterone), 28, 30, 32 and 34ºC. The results showed a statistical difference between the proportion of males, with temperatures control, 32 and 34ºC (98, 91, 96%, respectively) showed better results than those obtained for treatments 28 and 30ºC (71 and 82%). The survival observed in different treatments were 90.74, 90.49, 88.20, 85.43 and 82.16 for the control, 28, 30, 32 and 34ºC, respectively, and there was statistical difference between treatments 32 and 34 ºC, only when these were compared with the control. In the analysis of the radiographs was not possible to observe the presence

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“…Kapetsky y Nath (1997) mencionan que la disponibilidad de alimento y la temperatura del agua, parecen ser factores limitantes para el crecimiento de O.niloticus. Se han determinado intervalos de mayores crecimientos de O. niloticus en temperaturas de 28 y 32 °C (Likongwe Stecko, Stauffer, & Carline, 1996), 31 a 36 °C (FAO, 2006) y 30.1 °C (Xie et al, 2011). La reducción de la temperatura detiene la reproducción cuando se registran temperaturas de 22 °C.…”

Section: Discussionunclassified

La influencia de cuatro factores (temperatura, densidad, oxígeno y alimento) en la formación de marcas en las escamas de juveniles de tilapia

Ibáñez

Castellanos

Rodríguez

et al. 2017

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Influencia de la temperatura, densidad, oxígeno y alimento en la formación de marcas en las escamas de tilapia Abstract: The influence of temperature, density, oxygen and food in the mark formation on the scales of tilapia. Oreochromis niloticus has been introduced worldwide into freshwater reservoirs and represents an alternative food for local populations. Two annual marks on fish scales have been reported for fish in these environments, one of them is allocated to reproduction, while the other is thought to be formed following low temperatures, a reduction in oxygen concentration and/or high densities, among others. In order to explore the causes of this second ring, we designed an experimental study to analyze the influence of four factors: a reduction in food amount, an increase in density, a decrease in oxygen concentration and temperature. The experiment was carried out using five 215 L plastic tanks, each one divided into two sections, so as to have treatment replicates (each with 20 juveniles). The control conditions were optimal for the species: 5 % of body weight in food, a density of 3 fish/L, a total oxygen saturation of 4.98 ± 0.5 mg/L, and a temperature of 25.0 ± 1.0 o C; the treatments varied as follows: food of 2.5 % of body weight, density of 6 fish/L, oxygen of 2.8 ± 1.2 mg/L and a temperature of 19.6 ± 1.0 o C. Fish responses to stressors were estimated through variations in length, weight and inter-circuli spaces or circuli spacing in fish scales. Every third day it was measured the concentrations of ammonium, phosphates and nitrates with a photometer. Three stages for length/weight fish measurements and scales sampling were considered: 1) Initial stage: before experiment started, 2) Final stage: at the end of the experiment, and 3) Compensatory stage: when all the experimental treatments were adjusted to the Control conditions; the experiments lasted for three weeks. The results indicated that all the treatments caused a reduction in length, weight and inter-circuli spaces when compared to the controls (6.7 ± 0.5 cm; 5.2 ± 1.2 g; 5.4 ± 0.5 mm, respectively), but only the variables of temperature and food resulted significant (5.6 ± 0.4 and 5.8 ± 0.5 cm; 3.4 ± 0.7 and 3.3 ± 0.9 g; 3.4 ± 0.3 and 4.1 ± 0.6 mm for temperature and food treatments, respectively) (P < 0.05). When treatments were reversed to the control conditions for another three weeks compensatory growth was observed in the oxygen and density treatments, but not in the same way for the temperature and food treatments. We concluded that inter-circuli distances are a good indicator to stress periods in this species. Rev. Biol. Trop. 65 (2): 613-622. Epub 2017 June 01.

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Combined effects of water temperature and salinity on growth and feed utilization of juvenile Nile tilapia Oreochromis niloticus (Linneaus)

Cited by 157 publications

References 23 publications

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Inversão sexual de alevinos de tilápias do Nilo (Oreochromis niloticus) variedade Supreme, submetidos a diferentes temperaturas durante fase de diferenciação sexual

La influencia de cuatro factores (temperatura, densidad, oxígeno y alimento) en la formación de marcas en las escamas de juveniles de tilapia

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