Comparison of the growth of males and females of tilapia Oreochromis Niloticus cultured in cages
With the purpose of evaluating productive performance and potential weight gain capacity of snapper O. Niloticus without reversing, we evaluated the growth of males and females raised in floating cages in captivity grouped by gender. The experiment was conducted for a term of 150 days. We used a si...
| Autor: | |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2015 |
| País: | Costa Rica |
| Institución: | Universidad Nacional de Costa Rica |
| Repositorio: | Portal de Revistas UNA |
| Idioma: | español inglés |
| OAI Identifier: | oai:ojs.www.una.ac.cr:article/6242 |
| Acceso en línea: | https://www.revistas.una.ac.cr/index.php/uniciencia/article/view/6242 |
| Access Level: | acceso abierto |
| Palabra clave: | undifferentiated sex sex reversal larvae cages. Sexo indiferenciado reversión de sexo larvas jaulas. |
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oai:ojs.www.una.ac.cr:article/6242 |
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Costa Rica |
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| dc.title.none.fl_str_mv |
Comparison of the growth of males and females of tilapia Oreochromis Niloticus cultured in cages Comparación del crecimiento de machos y hembras de la tilapia Oreochromis Niloticus cultivadas en jaulas |
| title |
Comparison of the growth of males and females of tilapia Oreochromis Niloticus cultured in cages |
| spellingShingle |
Comparison of the growth of males and females of tilapia Oreochromis Niloticus cultured in cages Alvarado-Ruiz, Carlos undifferentiated sex sex reversal larvae cages. Sexo indiferenciado reversión de sexo larvas jaulas. |
| title_short |
Comparison of the growth of males and females of tilapia Oreochromis Niloticus cultured in cages |
| title_full |
Comparison of the growth of males and females of tilapia Oreochromis Niloticus cultured in cages |
| title_fullStr |
Comparison of the growth of males and females of tilapia Oreochromis Niloticus cultured in cages |
| title_full_unstemmed |
Comparison of the growth of males and females of tilapia Oreochromis Niloticus cultured in cages |
| title_sort |
Comparison of the growth of males and females of tilapia Oreochromis Niloticus cultured in cages |
| dc.creator.none.fl_str_mv |
Alvarado-Ruiz, Carlos |
| author |
Alvarado-Ruiz, Carlos |
| author_facet |
Alvarado-Ruiz, Carlos |
| author_role |
author |
| dc.subject.none.fl_str_mv |
undifferentiated sex sex reversal larvae cages. Sexo indiferenciado reversión de sexo larvas jaulas. |
| topic |
undifferentiated sex sex reversal larvae cages. Sexo indiferenciado reversión de sexo larvas jaulas. |
| description |
With the purpose of evaluating productive performance and potential weight gain capacity of snapper O. Niloticus without reversing, we evaluated the growth of males and females raised in floating cages in captivity grouped by gender. The experiment was conducted for a term of 150 days. We used a simple 4 836 alevins of 26.2±19.7g, fish that were nourished until they visibly reached sexual differentiation to 119.3±56.5 g to be separated by sex and nourished in floating cages to a final average weight of 387.0±128.9g (harvest)to determine differences in growth. The weight distribution of the undefined gender sample showed a decrease in the coefficient of variation (CV) of 75.13% to 31.49 and 30.22 for males and females respectively. This indicates that the distribution of sizes of the samples tended to become normal during the cycle of harvest. Significant differences (P=0.05) for the weight of harvest 429.2±135.1g and 339.65±102.64 g. For the growth rate 2.74±0.86g day y 2.18±0.68 g day were determined between males and females respectively. The standard error of the estimation of the difference of average weight between males and females was 89.62±7.23g for an accuracy level of 95%. Males displayed better growth rate and weight gain for harvest. |
| publishDate |
2015 |
| dc.date.none.fl_str_mv |
2015-01-31 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/publishedVersion Papers evaluated by academic peers Artículos evaluados por pares académicos artículo original http://purl.org/coar/resource_type/c_2df8fbb1 info:eu-repo/semantics/article |
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article |
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publishedVersion |
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https://www.revistas.una.ac.cr/index.php/uniciencia/article/view/6242 10.15359/ru.29-1.1 |
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https://www.revistas.una.ac.cr/index.php/uniciencia/article/view/6242 |
| identifier_str_mv |
10.15359/ru.29-1.1 |
| dc.language.none.fl_str_mv |
spa eng |
| language |
spa eng |
| dc.relation.none.fl_str_mv |
https://www.revistas.una.ac.cr/index.php/uniciencia/article/view/6242/6247 https://www.revistas.una.ac.cr/index.php/uniciencia/article/view/6242/6248 https://www.revistas.una.ac.cr/index.php/uniciencia/article/view/6242/6262 |
| dc.rights.none.fl_str_mv |
Derechos de autor 2024 compartidos: Revista y Autores(as) (CC-BY-NC-ND) https://creativecommons.org/licenses/by-nc-nd/4.0 acceso abierto http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
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Derechos de autor 2024 compartidos: Revista y Autores(as) (CC-BY-NC-ND) https://creativecommons.org/licenses/by-nc-nd/4.0 acceso abierto http://purl.org/coar/access_right/c_abf2 |
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openAccess |
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application/pdf application/pdf text/html |
| dc.publisher.none.fl_str_mv |
Universidad Nacional, Costa Rica |
| publisher.none.fl_str_mv |
Universidad Nacional, Costa Rica |
| dc.source.none.fl_str_mv |
Uniciencia; Vol. 29 No. 1 (2015): Uniciencia. Enero - Junio, 2015; 1-15 Uniciencia; Vol. 29 Núm. 1 (2015): Uniciencia. Enero - Junio, 2015; 1-15 Uniciencia; v. 29 n. 1 (2015): Uniciencia. Enero - Junio, 2015; 1-15 2215-3470 reponame:Portal de Revistas UNA instname:Universidad Nacional de Costa Rica instacron:UNA |
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Universidad Nacional de Costa Rica |
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UNA |
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UNA |
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Portal de Revistas UNA |
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Portal de Revistas UNA |
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Portal de Revistas UNA - Universidad Nacional de Costa Rica |
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andrea.mora.campos@una.cr |
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1849325687444340736 |
| spelling |
Comparison of the growth of males and females of tilapia Oreochromis Niloticus cultured in cagesComparación del crecimiento de machos y hembras de la tilapia Oreochromis Niloticus cultivadas en jaulasAlvarado-Ruiz, Carlosundifferentiated sexsex reversallarvaecages.Sexo indiferenciadoreversión de sexolarvasjaulas.With the purpose of evaluating productive performance and potential weight gain capacity of snapper O. Niloticus without reversing, we evaluated the growth of males and females raised in floating cages in captivity grouped by gender. The experiment was conducted for a term of 150 days. We used a simple 4 836 alevins of 26.2±19.7g, fish that were nourished until they visibly reached sexual differentiation to 119.3±56.5 g to be separated by sex and nourished in floating cages to a final average weight of 387.0±128.9g (harvest)to determine differences in growth. The weight distribution of the undefined gender sample showed a decrease in the coefficient of variation (CV) of 75.13% to 31.49 and 30.22 for males and females respectively. This indicates that the distribution of sizes of the samples tended to become normal during the cycle of harvest. Significant differences (P=0.05) for the weight of harvest 429.2±135.1g and 339.65±102.64 g. For the growth rate 2.74±0.86g day y 2.18±0.68 g day were determined between males and females respectively. The standard error of the estimation of the difference of average weight between males and females was 89.62±7.23g for an accuracy level of 95%. Males displayed better growth rate and weight gain for harvest.Con el fin de evaluar el desempeño productivo y el potencial de engorde de la tilapia O. niloticus sin reversar, se evaluó el crecimiento de machos y hembras cultivadas en forma separada en jaulas flotantes. El experimento se realizó por un periodo de 150 días, para ello se utilizó una población de 4 836 alevines de 26.2±19.7 g, peces que fueron engordados hasta peso de diferenciación sexual a 119.3±56.5 g, para luego ser separados por sexo y engordados en jaulas flotantes hasta un peso final promedio de 387.0±128.9 g (cosecha) y determinar así diferencias en crecimiento. La distribución de pesos de la población sexo indefinida mostró una disminución en su coeficiente de variación (CV) de 75.13% a 31.49% y 30.22% para los machos y hembras respectivamente, lo cual es un indicador de que la distribución de tallas de la poblaciones de peces tendió a normalizarse a lo largo del ciclo de cultivo. Diferencias significativas (P<= 0.05) para el peso de cosecha 429.2±135.1 g y 339.65 ±102.64 g, y para la tasa de crecimiento 2.74±0.86 g día-1 y 2.18 ± 0.68 g día-1 fueron determinadas entre machos y hembras respectivamente. El error estándar de la estimación de la diferencia de promedios de peso para machos y hembras correspondió a 3.68 g y la estimación de la diferencia de pesos de los machos con respecto a las hembras correspondió a 89.62±7.23 g para un intervalo de confianza del 95%. Los machos mostraron un mejor desempeño productivo para peso de cosecha y tasa de crecimiento.Universidad Nacional, Costa Rica2015-01-31info:eu-repo/semantics/publishedVersionPapers evaluated by academic peersArtículos evaluados por pares académicosartículo originalhttp://purl.org/coar/resource_type/c_2df8fbb1info:eu-repo/semantics/articleapplication/pdfapplication/pdftext/htmlhttps://www.revistas.una.ac.cr/index.php/uniciencia/article/view/624210.15359/ru.29-1.1Uniciencia; Vol. 29 No. 1 (2015): Uniciencia. Enero - Junio, 2015; 1-15Uniciencia; Vol. 29 Núm. 1 (2015): Uniciencia. Enero - Junio, 2015; 1-15Uniciencia; v. 29 n. 1 (2015): Uniciencia. Enero - Junio, 2015; 1-152215-3470reponame:Portal de Revistas UNAinstname:Universidad Nacional de Costa Ricainstacron:UNAspaenghttps://www.revistas.una.ac.cr/index.php/uniciencia/article/view/6242/6247https://www.revistas.una.ac.cr/index.php/uniciencia/article/view/6242/6248https://www.revistas.una.ac.cr/index.php/uniciencia/article/view/6242/6262Derechos de autor 2024 compartidos: Revista y Autores(as) (CC-BY-NC-ND)https://creativecommons.org/licenses/by-nc-nd/4.0acceso abiertohttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccess2024-07-30T19:41:06Zoai:ojs.www.una.ac.cr:article/6242Portal de revistashttp://revistas.una.ac.cr/Universidadhttp://www.una.ac.crhttps://revistas.una.ac.cr/index.php/index/oaiandrea.mora.campos@una.crCosta RicaNo aplicaNo aplicaNo aplicaopendoar:2024-07-30T19:41:06Portal de Revistas UNA - Universidad Nacional de Costa Ricafalse |
| score |
15.811543 |