Effects of re-stripping on the seminal characteristics of pacu ( Piaractus mesopotamicus ) during the breeding season

Kuradomi, Rafael Yutaka; Souza, Thiago Alves de; Foresti, Fausto; Schulz, Rüdiger; Bogerd, Jan; Moreira, Renata Guimarães; Furlan, Luiz Roberto; Almeida, Eduardo Alves de; Maschio, Lucilene Regina

doi:10.1016/j.ygcen.2015.06.007

Cited by 21 publications

(25 citation statements)

References 82 publications

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“…Several aspects of artificial reproduction in fish have been well documented such as neuroendocrine control, fecundity, gametogenesis, cryopreservation, and the efficacy of hormonal therapy, being the major concerns placed on the quality of the progeny and reproductive performance (Criscuolo-Urbinati et al, 2012;De Souza et al, 2015;Imanaga et al, 2014;Kuradomi et al, 2016;Mylonas et al, 2010;Tyler and Sumpter, 1996;Zohar et al, 2010). However, little research has been published focusing on the effects of induced spawning on breeders' health.…”

Section: Discussionmentioning

confidence: 99%

A description of liver and blood changes in matrinxã (Brycon amazonicus) during induced spawning

et al. 2018

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We investigated the effects of induced spawning on liver and blood cell changes in matrinxã breeders, a commercially valuable South American fish that requires hormonal manipulation and stripping to spawn, a trait shared by other important aquaculture species. Little attention has been given to this topic despite the mortality rates commonly reported by fish farmers following this practice. In this study, we show that the overall handling required in induced spawning severely impaired the liver (hypertrophy of the hepatocytes, enlargement of the cell nuclei and reductions of glycogen deposits) which was mainly attributed to hormonal therapy. Additionally, the induced spawning procedure increased the number of red blood cells and decreased the white blood cell and thrombocyte count. These results corroborate the stressful conditions and immunosuppression, which together with the liver damage may explain the reported mortality rates. Finally, our findings outline important approaches for improving induced spawning technique.

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Section: Discussionmentioning

confidence: 99%

A description of liver and blood changes in matrinxã (Brycon amazonicus) during induced spawning

et al. 2018

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“…El almacenamiento de espermatozoides viejos al interior de los testículos y la espermatogénesis continua ha sido demostrado en peces reofílicos sudamericanos (Batlouni et al, 2006; De Souza et al, 2015). Por otro lado, Kuradomi et al (2016) ha demostrado que se puede colectar repetidamente machos P. mesopotamicus como método de obtención de semen sin afectar la calidad espermática.…”

Section: Introductionunclassified

Efecto de dos colectas de semen en una temporada reproductiva sobre la calidad seminal de cachama blanca (Piaractus brachypomus)

Martínez

Medina‐Robles

Casallas

2019

Rev. investig. vet. Perú

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Se evaluó el efecto de dos colectas de semen realizadas en la misma temporada reproductiva sobre los parámetros espermáticos y composición fisicoquímica del plasma seminal de Piaractus brachypomus. El semen de nueve machos inducidos hormonalmente con extracto hipofisiario de carpa (EHC) fue colectado en abril y mayo de 2014. Se estudiaron los cambios entre colectas del volumen seminal (VS), movilidad espermática (ME), tiempo de activación (TA), concentración espermática (CE) y variables fisicoquímicas (Na+, Ca2+, Mg2+, Cl-, K+, glucosa, triglicéridos, proteína, osmolaridad y pH). Se observaron diferencias significativas entre colectas para Na+, triglicéridos y osmolaridad (p<0.05) y Ca2+ (p<0.01). Por otro lado, no se encontraron diferencias significativas en VS, ME, TA y CE entre colectas. La colección de semen de un reproductor inducido hormonalmente en dos oportunidades dentro de una misma temporada reproductiva en es una alternativa de manejo viable en P. brachypomus, aunque los componentes plasmáticos pueden variar por efecto del muestreo.

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“…F1 and F2 generations of P. ornatus were first secured in 2010, and it is expected that in the near future, the expansion of spiny lobster farming will no longer be constrained by the seed supply (Bernard & Turner ). Spiny lobsters could spawn more than once during a year, and it is not possible to prompt spawns outside the natural spawning period, as in flatfish (Rasines, Gomez, Martin, Rodriguez, Mananos & Chereguini ; Kuradomi, De Souza, Foresti, Schulz, Bogerd, Moreira, Furlan, Almeida, Maschio & Batlouni ). To date, the offspring of farmed spiny lobster have been produced by natural spawning in large broodstock tanks.…”

Section: Introductionmentioning

confidence: 99%

Parentage analysis of tropical spiny lobster (Panulirus homarus) by microsatellite markers

et al. 2017

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have contributed equally to the work. AbstractParentage analysis is of vital importance for hatchery production and breeding programmes. Two multiplex PCR protocols including seven tropical spiny lobster (Panulirus homarus) microsatellites (Pho-G06, Pho-G25, Pho-G53, Pho-G62, Pho-G74, Pho-G89 and Pho-G100) were introduced for parentage assignment. All loci were polymorphic with allele sizes from 113 to 337 base pairs (bp), observed alleles (k) from two to seven and polymorphic information content (PIC) of 0.25 to 0.73. Twenty-four stage-3 phyllosoma larvae (39 days posthatching) were collected for paternity exclusion study using selected microsatellites. Exclusion-based parentage analysis unambiguously assigned 83% of fry (20 of 24) to a single female parent. Of ten putative female parents, five have contributed to the 20 allocated offspring, with one being true parent of 11. Four others were assigned to two or more potential female parents, probably due to genotyping error or the presence of null allele. The exclusion power (EP) for the seven loci varied between 13% and 54% with known genotypes of one parent (P1) and 19% and 71% for given the genotypes of both parents (P2). The theoretical combined parentage exclusion (cEP) power for all seven microsatellites was P1 = 95% and P2 = 99%. The power of discrimination for each locus varied between 0.18 and 0.86. This report presents the first study to utilize microsatellite markers for successful parentage assignment of P. homarus. The selected microsatellites provide a practical tool for parentage analysis in hatchery production of juveniles as well as in future commercial breeding programme of tropical spiny lobsters.

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Effects of re-stripping on the seminal characteristics of pacu ( Piaractus mesopotamicus ) during the breeding season

Cited by 21 publications

References 82 publications

A description of liver and blood changes in matrinxã (Brycon amazonicus) during induced spawning

A description of liver and blood changes in matrinxã (Brycon amazonicus) during induced spawning

Efecto de dos colectas de semen en una temporada reproductiva sobre la calidad seminal de cachama blanca (Piaractus brachypomus)

Parentage analysis of tropical spiny lobster (Panulirus homarus) by microsatellite markers

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