Diets containing crude glycerin damage the sperm characteristics and modify the testis histology of Nile tilapia broodstock

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dc.contributor.authorMewes, Juliana Kasper
dc.contributor.authorMeurer, Fabio
dc.contributor.authorTessaro, Lucelia [UNESP]
dc.contributor.authorBuzzi, Alexandre Henrique
dc.contributor.authorSyperreck, Mirna Adriane
dc.contributor.authorBombardelli, Robie Allan
dc.contributor.institutionUniv Estadual Oeste Parana UNIOESTE
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Fed Parana
dc.contributor.institutionUniversidade Estadual de Londrina (UEL)
dc.date.accessioned2018-11-26T17:06:40Z
dc.date.available2018-11-26T17:06:40Z
dc.date.issued2016-12-01
dc.description.abstractThe effects of crude glycerin in the diets of male Nile tilapia (Oreochromis niloticus) on growth, seminal and spermatic characteristics, blood parameters, histological aspects of the hepatic and testicular tissue, and on the chemical composition of different organs/tissues were evaluated. For 10 months, the animals were fed diets containing 32% digestible protein (DP), 3200 kcal digestible energy (DE) . kg ration(-1) and five inclusion levels of crude glycerin (0, 4, 8, 12 and 16%). Growth, seminal and spermatic parameters were evaluated, and the plasmatic levels of calcium, triglycerides and glucose were measured. Gonadosomatic, viscerosomatic and hepatosomatic indexes were evaluated and combined with the histological parameters of the testicles and liver. Finally, the centesimal composition of the muscles, testis, liver and viscera were evaluated. The volume of semen released, fecundity, effective fecundity and plasmatic levels of glucose decreased proportionally (p < 0.05) to the increase of glycerin in the diet. The hepatosomatic index increased proportionally (p < 0.05) to the inclusion levels of crude glycerin in the diet. Fish fed on glycerin had the highest protein levels (p < 0.05) in the muscle and testicles. Histological assessment suggests that fish fed the lowest glycerin diet had the highest amounts of spermatozoids in the testicles. Other variables under analysis were not affected by diet (p > 0.05). The results show that, although crude glycerin does not impair growth, any inclusion level in the diet impairs the spermatogenesis process and damages the sperm characteristics of male Nile tilapia. Statement of relevance: Do not use the crude glycerin to the Nile tilapia males. (C) 2016 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniv Estadual Oeste Parana UNIOESTE, Rua Fac 645, BR-85903000 Toledo, Parana, Brazil
dc.description.affiliationUniv Estadual Paulista, Ctr Aquicultura, Via Acesso Prof Paulo Donato Castellane S-N, BR-14884900 Jaboticabal, SP, Brazil
dc.description.affiliationUniv Fed Parana, Rua Pioneiro 2153, BR-85950000 Palotina, PR, Brazil
dc.description.affiliationUniv Estadual Londrina, Rodovia Celso Garcia Cid S-N, BR-86057970 Londrina, Parana, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Ctr Aquicultura, Via Acesso Prof Paulo Donato Castellane S-N, BR-14884900 Jaboticabal, SP, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundacao Araucaria de Apoio ao Desenvolvimento Cientifico e Tecnologico do Parana
dc.description.sponsorshipIdCNPq: 485664/2011-9
dc.description.sponsorshipIdFundacao Araucaria de Apoio ao Desenvolvimento Cientifico e Tecnologico do Parana: 15924
dc.format.extent164-171
dc.identifierhttp://dx.doi.org/10.1016/j.aquaculture.2016.08.035
dc.identifier.citationAquaculture. Amsterdam: Elsevier Science Bv, v. 465, p. 164-171, 2016.
dc.identifier.doi10.1016/j.aquaculture.2016.08.035
dc.identifier.fileWOS000385372200023.pdf
dc.identifier.issn0044-8486
dc.identifier.urihttp://hdl.handle.net/11449/162056
dc.identifier.wosWOS:000385372200023
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofAquaculture
dc.relation.ispartofsjr1,152
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectBiodiesel
dc.subjectCASA
dc.subjectFecundity
dc.subjectSemen
dc.subjectSpermatozoids
dc.subjectTesticle
dc.titleDiets containing crude glycerin damage the sperm characteristics and modify the testis histology of Nile tilapia broodstocken
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
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