Responses of Nile tilapia to different levels of water salinity
Autor(a) principal: | |
---|---|
Data de Publicação: | 2015 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | LOCUS Repositório Institucional da UFV |
Texto Completo: | https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0718-560X2015000500003&lng=en&tlng=en http://www.locus.ufv.br/handle/123456789/18627 |
Resumo: | A 45 day experiment was carried out to evaluate the effect of water salinity on the performance, haematological parameters and histological characteristics of the gills of the Nile tilapia, Oreochromis niloticus. The water salinity levels evaluated were: 0, 7, 14 and 21 g L^-1. Nile tilapia specimens (1.62 ± 0.01 g), distributed into 20 fibreglass tanks (100 L) at a density of 15 fish per tank. There were no significant differences of the water salinity levels on daily feed intake; however, there were differences (P < 0.05) on the daily weight gain, feeding conversion rate and survival. The best results were observed for the water salinity levels of 0 and 7 g L^-1. There were no differences (P > 0.05) between these levels. Regarding the haematological parameters, it was observed that the percentage of the haematocrits and the erythrocyte count were influenced (P < 0.05) by the water salinity level, which was not observed for the leukocyte count. The observed histopathological alterations were chloride cell hypertrophy, epithelial lifting, structure alteration, telangiectasia, primary lamellae cells aggregation, fusion and occurrence of aneurisms of different sizes in some secondary lamellae. Regarding the frequency of gills infection intensity, there were slight changes between the salinities of 0, 7 and 14 g L^-1 and moderate changes at 21 g L^-1. It is concluded that Nile tilapia can be reared in water salinities of up to 7 g L^-1 without damage to the parameters evaluated in this work. |
id |
UFV_29d3bf574a227f240cd009072018502a |
---|---|
oai_identifier_str |
oai:locus.ufv.br:123456789/18627 |
network_acronym_str |
UFV |
network_name_str |
LOCUS Repositório Institucional da UFV |
repository_id_str |
2145 |
spelling |
Teixeira-Lanna, Eduardo ArrudaAzevedo, Rafael Vieira deSantos-Costa, Karolina dosOliveira, Karen Figueiredo deFlores-Lopes, FábioTavares-Braga, Luís Gustavo2018-04-04T10:40:28Z2018-04-04T10:40:28Z2015-04-080718560Xhttps://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0718-560X2015000500003&lng=en&tlng=enhttp://www.locus.ufv.br/handle/123456789/18627A 45 day experiment was carried out to evaluate the effect of water salinity on the performance, haematological parameters and histological characteristics of the gills of the Nile tilapia, Oreochromis niloticus. The water salinity levels evaluated were: 0, 7, 14 and 21 g L^-1. Nile tilapia specimens (1.62 ± 0.01 g), distributed into 20 fibreglass tanks (100 L) at a density of 15 fish per tank. There were no significant differences of the water salinity levels on daily feed intake; however, there were differences (P < 0.05) on the daily weight gain, feeding conversion rate and survival. The best results were observed for the water salinity levels of 0 and 7 g L^-1. There were no differences (P > 0.05) between these levels. Regarding the haematological parameters, it was observed that the percentage of the haematocrits and the erythrocyte count were influenced (P < 0.05) by the water salinity level, which was not observed for the leukocyte count. The observed histopathological alterations were chloride cell hypertrophy, epithelial lifting, structure alteration, telangiectasia, primary lamellae cells aggregation, fusion and occurrence of aneurisms of different sizes in some secondary lamellae. Regarding the frequency of gills infection intensity, there were slight changes between the salinities of 0, 7 and 14 g L^-1 and moderate changes at 21 g L^-1. It is concluded that Nile tilapia can be reared in water salinities of up to 7 g L^-1 without damage to the parameters evaluated in this work.Se realizó un experimento de 45 días para evaluar el efecto de la salinidad sobre el crecimiento, parámetros hematológicos y características histológicas de las branquias de la tilapia del Nilo, Oreochromis niloticus. Los niveles de salinidad fueron: 0, 7, 14 y 21 g L^-1. Los especímenes de tilapia del Nilo (1,62 ± 0,01 g) se distribuyeron en 20 estanques de fibra de vidrio (100 L) a una densidad de 15 peces por estanque. No hubo diferencias significativas en los niveles de salinidad sobre el consumo diario de alimento, pero hubo diferencias (P < 0,05) en la ganancia diaria de peso, conversión alimenticia y supervivencia. Los mejores resultados se observaron en los niveles de salinidad de 0 y 7 g L^-1, sin diferencias (P > 0,05) entre ellos. En cuanto a los parámetros hematológicos, se observó que el porcentaje de hematocrito y número de eritrocitos fueron influenciados (P < 0,05) por el nivel de salinidad, que no se observó para el recuento de leucocitos. Las alteraciones histopatológicas observadas fueron: hipertrofia de las células de cloruro, elevación epitelial, cambio en la estructura, telangiectasia, agregación de las células primarias de las laminillas, fusión y aparición de algunos aneurismas de diferentes tamaños en laminillas secundarias. En cuanto a la frecuencia de la intensidad en la infección de las branquias, hubo ligeros cambios entre las salinidades de 0,7 y 14 g L^-1 y cambios moderados a 21 g L^-1. Se concluye que la tilapia del Nilo se puede cultivar en salinidades de hasta 7 g L^-1 sin daño a los parámetros evaluados en este trabajo.engLatin american journal of aquatic researchv. 43, n. 5, p. 828-835, Novembro 2015Oreochromis niloticusHaematologyHistopathological alterationsAquacultureResponses of Nile tilapia to different levels of water salinityinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfinfo:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALartigo.pdfartigo.pdftexto completoapplication/pdf711719https://locus.ufv.br//bitstream/123456789/18627/1/artigo.pdfd0ab62bc9cc55d95aff04a7385267d12MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://locus.ufv.br//bitstream/123456789/18627/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52THUMBNAILartigo.pdf.jpgartigo.pdf.jpgIM Thumbnailimage/jpeg4741https://locus.ufv.br//bitstream/123456789/18627/3/artigo.pdf.jpg600e0733bdc5fee59029beef0c1bc316MD53123456789/186272018-04-04 23:00:36.64oai:locus.ufv.br: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Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452018-04-05T02:00:36LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false |
dc.title.en.fl_str_mv |
Responses of Nile tilapia to different levels of water salinity |
title |
Responses of Nile tilapia to different levels of water salinity |
spellingShingle |
Responses of Nile tilapia to different levels of water salinity Teixeira-Lanna, Eduardo Arruda Oreochromis niloticus Haematology Histopathological alterations Aquaculture |
title_short |
Responses of Nile tilapia to different levels of water salinity |
title_full |
Responses of Nile tilapia to different levels of water salinity |
title_fullStr |
Responses of Nile tilapia to different levels of water salinity |
title_full_unstemmed |
Responses of Nile tilapia to different levels of water salinity |
title_sort |
Responses of Nile tilapia to different levels of water salinity |
author |
Teixeira-Lanna, Eduardo Arruda |
author_facet |
Teixeira-Lanna, Eduardo Arruda Azevedo, Rafael Vieira de Santos-Costa, Karolina dos Oliveira, Karen Figueiredo de Flores-Lopes, Fábio Tavares-Braga, Luís Gustavo |
author_role |
author |
author2 |
Azevedo, Rafael Vieira de Santos-Costa, Karolina dos Oliveira, Karen Figueiredo de Flores-Lopes, Fábio Tavares-Braga, Luís Gustavo |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Teixeira-Lanna, Eduardo Arruda Azevedo, Rafael Vieira de Santos-Costa, Karolina dos Oliveira, Karen Figueiredo de Flores-Lopes, Fábio Tavares-Braga, Luís Gustavo |
dc.subject.pt-BR.fl_str_mv |
Oreochromis niloticus Haematology Histopathological alterations Aquaculture |
topic |
Oreochromis niloticus Haematology Histopathological alterations Aquaculture |
description |
A 45 day experiment was carried out to evaluate the effect of water salinity on the performance, haematological parameters and histological characteristics of the gills of the Nile tilapia, Oreochromis niloticus. The water salinity levels evaluated were: 0, 7, 14 and 21 g L^-1. Nile tilapia specimens (1.62 ± 0.01 g), distributed into 20 fibreglass tanks (100 L) at a density of 15 fish per tank. There were no significant differences of the water salinity levels on daily feed intake; however, there were differences (P < 0.05) on the daily weight gain, feeding conversion rate and survival. The best results were observed for the water salinity levels of 0 and 7 g L^-1. There were no differences (P > 0.05) between these levels. Regarding the haematological parameters, it was observed that the percentage of the haematocrits and the erythrocyte count were influenced (P < 0.05) by the water salinity level, which was not observed for the leukocyte count. The observed histopathological alterations were chloride cell hypertrophy, epithelial lifting, structure alteration, telangiectasia, primary lamellae cells aggregation, fusion and occurrence of aneurisms of different sizes in some secondary lamellae. Regarding the frequency of gills infection intensity, there were slight changes between the salinities of 0, 7 and 14 g L^-1 and moderate changes at 21 g L^-1. It is concluded that Nile tilapia can be reared in water salinities of up to 7 g L^-1 without damage to the parameters evaluated in this work. |
publishDate |
2015 |
dc.date.issued.fl_str_mv |
2015-04-08 |
dc.date.accessioned.fl_str_mv |
2018-04-04T10:40:28Z |
dc.date.available.fl_str_mv |
2018-04-04T10:40:28Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0718-560X2015000500003&lng=en&tlng=en http://www.locus.ufv.br/handle/123456789/18627 |
dc.identifier.issn.none.fl_str_mv |
0718560X |
identifier_str_mv |
0718560X |
url |
https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0718-560X2015000500003&lng=en&tlng=en http://www.locus.ufv.br/handle/123456789/18627 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartofseries.pt-BR.fl_str_mv |
v. 43, n. 5, p. 828-835, Novembro 2015 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Latin american journal of aquatic research |
publisher.none.fl_str_mv |
Latin american journal of aquatic research |
dc.source.none.fl_str_mv |
reponame:LOCUS Repositório Institucional da UFV instname:Universidade Federal de Viçosa (UFV) instacron:UFV |
instname_str |
Universidade Federal de Viçosa (UFV) |
instacron_str |
UFV |
institution |
UFV |
reponame_str |
LOCUS Repositório Institucional da UFV |
collection |
LOCUS Repositório Institucional da UFV |
bitstream.url.fl_str_mv |
https://locus.ufv.br//bitstream/123456789/18627/1/artigo.pdf https://locus.ufv.br//bitstream/123456789/18627/2/license.txt https://locus.ufv.br//bitstream/123456789/18627/3/artigo.pdf.jpg |
bitstream.checksum.fl_str_mv |
d0ab62bc9cc55d95aff04a7385267d12 8a4605be74aa9ea9d79846c1fba20a33 600e0733bdc5fee59029beef0c1bc316 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 |
repository.name.fl_str_mv |
LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV) |
repository.mail.fl_str_mv |
fabiojreis@ufv.br |
_version_ |
1794528124211298304 |