Effects of hormonal treatment on induced spermiation and semen quality in the endangered Amazonian fish Hypancistrus zebra (Siluriformes, Loricariidae)

Caldas, Jôsie Schwartz; Silva, Adriele Lima da; Sousa, Leandro Melo de; Sousa, Erilda Barbosa de; Monteiro, Iann Leonardo Pinheiro; Barros, Fábio José Torres de; Godoy, Leandro

doi:10.1016/j.aquaculture.2020.736140

Cited by 9 publications

(11 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This is akin to the outcomes of the current study using GnRHs in conjunction with the antidopaminergic domperidone. In the H. zebra study, the disparity in ejaculation was attributed to immunological factors (CALDAS et al, 2021). In the present research, using metoclopramide as the antidopaminergic (aGnRHm + DI), all animals achieved semen release, often in larger volumes than those treated with domperidone (aGnRHs + DI), suggesting that the specific type of dopamine inhibitor could influence outcomes.…”

Section: Resultsmentioning

confidence: 57%

“…Antidopaminergics inhibit dopamine, a dopaminergic neurotransmitter that restrains the synthesis and release of GnRH into the middle eminence and portal hypophyseal circulation (MYLONAS; DUNCAN; ASTURIANO, 2017). A study involving the induction of reproduction using aGnRH hormones (gonadorelin) in Hypancistrus zebra reported variations in semen release among animals, contrasting with the uniform gametic release seen with carp pituitary homogenate (CPH) as control (CALDAS et al, 2021). This is akin to the outcomes of the current study using GnRHs in conjunction with the antidopaminergic domperidone.…”

Section: Resultsmentioning

confidence: 62%

“…The increase in seminal volume following hormone application is attributed to heightened hydration of the testicular ducts under stimulation (BERNARDES JÚNIOR; BOMBARDELLI; NUÑER, 2017; MYLONAS; DUNCAN; ASTURIANO, 2017). This increase results from luteinizing activity stimulated by inducers, promoting augmented fl uid production in sertoli cells and seminal vesicles, thus enhancing maturation-inducing steroid synthesis (CALDAS et al, 2021;MYLONAS;DUNCAN;ASTURIANO, 2017). Consequently, increased seminal volume occurs through hydrostatic pressure within the testes, facilitating greater displacement through the ducts (CALDAS et al, 2021;RAINIS;BALLESTRAZZI, 2005) Sperm concentration knowledge is crucial for successful fertilization due to spermatozoa-to-oocyte ratio (SANCHES et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Evaluation of different hormone inducers on the reproduction of Prochilodus brevis males

Vieira,

Sales,

Lobato

et al. 2024

RCA

View full text Add to dashboard Cite

The use of carp pituitary extract (CPE) in fi sh reproduction may have drawbacks, whereas analogues of mammalian (aGnRHm) or salmon (aGnRHs) gonadotropins containing dopamine inhibitor (DI) may off er greater advantages. The objective of this study was to evaluate the eff ect of diff erent hormone inducers on the reproduction of Prochilodus brevis males. A total of 44 specimens of P. brevis were divided into six groups, namely, CPE 4.0 mg; saline solution 1.0 mL; aGnRHm+DI 0.3 mg and 0.5 mg; and aGnRHs+DI 0.25 mL and 0.35 mL kg -1 of live weight. The number of ejaculates, seminal volume, curvilinear velocity (VCL), straight-line velocity (VSL), average path velocity (VAP), sperm morphology and concentration, and membrane and DNA integrity were determined. Sample normality was examined using the Shapiro-Wilk test, and homogeneity using the Levene test. Analysis of variance (ANOVA) was conducted, followed by Tukey's test to compare means, with statistical signifi cance set at p < 0.05. Notably, all fi sh induced with CPE 4.0 and aGnRHm+DI demonstrated ejaculation, yielding a greater seminal volume. Sperm concentration under aGnRHs+DI 0.35 exceeded that with aGnRHm+DI 0.3 and CPE 4.0. Regarding velocity, aGnRHm+DI 0.3 outperformed aGnRHs+DI 0.35 in VCL, while aGnRHm+DI 0.3 and 0.5 and aGnRHs+DI 0.25 led to higher VSL than aGnRHs 0.35. Additionally, VAP was elevated under aGnRHm+DI 0.3 and CPE, in contrast to aGnRHs+DI 0.35. Improved sperm morphology was observed with aGnRHm+DI 0.5 and aGnRHs+DI 0.25 compared to aGnRHm+DI 0.3. The remaining parameters did not diff er signifi cantly.

show abstract

Section: Resultsmentioning

confidence: 57%

Section: Resultsmentioning

confidence: 62%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Evaluation of different hormone inducers on the reproduction of Prochilodus brevis males

Vieira,

Sales,

Lobato

et al. 2024

RCA

View full text Add to dashboard Cite

show abstract

“…In addition, other seizures of fish are donated to research Institutions, though these are fish generally in a debilitated state, which results in some mortality due to the critical condition of the specimens received. Nonetheless, sometimes this results in the specimen recovery due to the excellent fish care of these researchers, and enables, in some cases, the use of breeding fish in research within the scope of their conservation (Caldas and Godoy, 2019;Caldas et al, 2021).…”

Section: Environmental and Conservation Devicesmentioning

confidence: 99%

Trafficking of Ornamental Fish in the Brazilian Amazon

et al. 2021

View full text Add to dashboard Cite

The trafficking of ornamental fish is growing on a yearly basis in the Brazilian Amazon. This represents a serious threat to the biodiversity of the region. The objective of this research was to evaluate the trafficking of ornamental fish in the Brazilian Amazon using data from the seizures by the Federal Police and Brazilian Institute of Environment and Renewable Natural Resources - IBAMA. To assess and quantify this illegal trade, we gathered data relating to the period between January 2003 and January 2020. Information was obtained from IBAMA - Amazon - regional superintendence; National Amazon Research Institute - INPA regarding smuggled species that have been recovered and placed in its fish collection. The results show that in 98 seizures made by IBAMA, a total of 170,849 specimens of at least 73 species of 10 families, and 5 orders were recovered. Most of the illegally trafficked species are from the Loricariidae family (31 species, 8.47%). Hypancistrus zebra (Loricariidae), Potamotrygon jabuti, Potamotrygon leopoldi (Potamotrygonidae), Osteoglossum bicirrhosum and Osteoglossum ferreirai (Osteoglossidae) are the most targeted by the traffickers, due to their high value. At least 12 species are undescribed new species and were registered and placed in INPA’s fish collection. The fish followed different routes to reach the border that Brazil, Colombia, and Peru share. We conclude that in order to fight this illegal trade, tougher laws against smugglers, agreements with neighboring countries to combat trafficking, formal environmental education programs for riverine populations, and further scientific studies of smuggled species are necessary.

show abstract

“…La hipofización aún hoy, continúa siendo una técnica aplicada ampliamente en Latinoamérica (Paschoalini et al, 2021) y África (Okomoda et al, 2017;Eyo et al, 2020), donde los costos de adquisición de inductores sintéticos importados suelen ser altos, obligando a los piscicultores a aprovechar extractos hipofisarios de peces nativos y otros vertebrados para estos fines (Streit Jr. et al, 2005;Martins et al, 2008;González et al, 2010). Dentro del grupo de extractos hipofisarios más usados resalta el extracto de pituitaria de carpa o EPC (Zaki et al, 2020, Caldas et al, 2021Romanova et al, 2021). El uso de EPC se reporta en la reproducción inducida del pez amazónico conocido como gamitana o tambaquí, Colossoma macropomum (Martins et al, 2017;Pires et al, 2018;Souza et al, 2018;Pires et al, 2019;Sevignani et al, 2020), una de las principales especies nativas cultivadas en Brasil y Perú.…”

Section: Introductionunclassified

REPRODUCCIÓN INDUCIDA DE GAMITANA Colossoma macropomum USANDO EXTRACTOS DE PITUITARIA DE CARPA COMÚN Y DE PAICHE

CHU¹,

TELLO²,

SOLARTE³

et al. 2022

Folia Amaz

View full text Add to dashboard Cite

La hipofización fue la primera técnica de reproducción inducida conocida en piscicultura y sigue siendo una técnica aplicada hasta la actualidad. El objetivo del estudio fue evaluar la respuesta reproductiva de machos y hembras adultas de gamitana Colossoma macropomum, inducidas con inyecciones de extracto de pituitaria de paiche (EPP) y extracto de pituitaria de carpa (EPC). Utilizamos diez hembras y diez machos con un peso corporal promedio de 6,81 ± 1,86 kg y 6,59 ± 2,34 kg, respectivamente. Cuatro hembras fueron tratadas con el extracto de hipófisis de carpa (EPC) a 6,0 mg/kg de peso corporal, mientras que otras seis recibieron el extracto de pituitaria de paiche (EPP) a razón de 3,5 mg/kg de peso corporal. En ambos casos la dosis fue administrada en dos inyecciones (10% al inicio y 90% doce horas después). Cuatro machos fueron inducidos con EPC y seis con EPP a razón de 1 mg/kg de peso corporal administrados en dos dosis de 50%, al mismo tiempo que las hembras. Las hembras inducidas con el EPP desovaron en su totalidad, mientras que con el EPC solo el 75% de ellas. La tasa de desove, así como las medias de peso total de ovocitos desovados, número de ovocitos por gramo, fecundidad absoluta, tasa de eclosión y el número total de larvas producidas de los dos tratamientos hormonales utilizados en el presente estudio no presentaron diferencias significativas (P>0.05). El presente trabajo demostró que es posible realizar la reproducción inducida de Colossoma macropomum utilizando el extracto de pituitaria de paiche.

show abstract

Effects of hormonal treatment on induced spermiation and semen quality in the endangered Amazonian fish Hypancistrus zebra (Siluriformes, Loricariidae)

Cited by 9 publications

References 22 publications

Evaluation of different hormone inducers on the reproduction of Prochilodus brevis males

Evaluation of different hormone inducers on the reproduction of Prochilodus brevis males

Trafficking of Ornamental Fish in the Brazilian Amazon

REPRODUCCIÓN INDUCIDA DE GAMITANA Colossoma macropomum USANDO EXTRACTOS DE PITUITARIA DE CARPA COMÚN Y DE PAICHE

Contact Info

Product

Resources

About