High validity sex determination of three years old cultured beluga sturgeon (Huso huso) using ultrasonography

Masoudifard, M.; Vajhi, Alireza; Moghim, M.; Nazari, R M; Naghavi, A; Sohrabnejad, Mehdi

doi:10.1111/j.1439-0426.2011.01726.x

Cited by 26 publications

(20 citation statements)

References 17 publications

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“…The reflection signals from inside of the body make several main internal organs (i.e., the spine, air bladder, and stomach) visible. The important aspect of this result is that internal organs can be recognized as a 3-D figure by applying a contactless measurement method, in contrast to the 2-D image obtained in a contact method (Masoudifard et al, 2011). Main inner structures can be distinguished from the figure employing the proposed method, but small and complex structures (e.g., the gonad) are difficult to distinguish from their shape characteristics because of the complexity of the acoustic propagation phenomena in the fish body.…”

Section: Resultsmentioning

confidence: 93%

Experimental and Finite-Difference Time-Domain Simulation Study of the Precise Measurement of the Gonad of a Small Fish Using a 25-MHz Acoustic Focus Probe

Nagaso¹,

Mizuno²,

Asada³

et al. 2015

mar technol soc j

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A high-resolution imaging method using a 25-MHz ultrasonic acoustic profile measurement was introduced, and the inner structures of small fish were examined without body contact. Two types of fish were selected as experimental targets and measured using a focused probe. 3-D acoustic imaging of the inner and external structure of the fish body was then performed, and the results demonstrated that the visualization of main organs (e.g., stomach, intestine, airbladder, and spine) was possible and a small gonad could be detected. In addition to these experiments, finite-difference time-domain simulation was introduced for complex wave propagation phenomena in the fish body, providing a clear understanding of the experimental data.

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Section: Resultsmentioning

confidence: 93%

Experimental and Finite-Difference Time-Domain Simulation Study of the Precise Measurement of the Gonad of a Small Fish Using a 25-MHz Acoustic Focus Probe

Nagaso¹,

Mizuno²,

Asada³

et al. 2015

mar technol soc j

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“…Determination of the eel sex USG was found to be effective in determining the sex of fish in a study conducted with sturgeon by Masoudifard et al (2011) and Petochi et al (2011). The effectiveness of sex determination was found to exceed 95% in sexually immature fish and 100% in mature fish.…”

Section: Resultsmentioning

confidence: 96%

Use of an ultrasound device to determine sex and to perform gonad biopsy in the European eel Anguilla Anguilla

Kucharczyk

Żarski

Krejszeff

et al. 2016

Braz. J. Vet. Res. Anim. Sci.

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The European eel Anguilla anguilla is a highly important market species which is also increasingly in danger of extinction in Europe. One of the ways of protecting the species in the natural environment, while maintaining its market supply, is its aquaculture, e.g. due to much higher survival rate under controlled conditions than in the wild. However, this can be done only when an effective artificial reproduction biotechnique is developed. The aim of this study was to use an ultrasound device to determine the sex and to perform a biopsy of the gonads, which is a part of complete protocol of eel artificial reproduction. The findings indicate that ultrasonography is highly useful in determining the sex in migrating eel (100% of sureness) and in performing high-precision biopsy of the gonads. The present method gives the possibility to quick determine the maturity of the female gonads. The application of ultrasonography (USG) is totally safe for fish and a portable ultrasound device can be used in both the laboratory and in the field. Keywords: European eel. Oocytes. Maturation. Sex. Ultrasonography. USG. ResumoA Enguia-Européia Anguilla anguilla é uma espécie de grande importância comercial e que apresenta também grande risco de extinção na Europa. Uma das formas para a proteção das espécies em seu ambiente natural e de manter o seu suprimento no comércio é a aquicultura, por exemplo, devido à taxa de sobrevivência em condições controladas ser muito superior a existente em condições naturais. Contudo isto só pode ser obtido quando é desenvolvida uma biotécnica de reprodução artificial eficiente. O presente trabalho foi delineado para utilizar um dispositivo ultrassonográfico a fim de determinar o sexo e de possibilitar a realização de biópsias das gônadas, o que é parte do protocolo complete de reprodução artificial de enguias. As constatações indicaram que a ultrassonografia é muito útil para a determinação do sexo das enguias (100% de exatidão) e também é capaz de possibilitar a realização de uma biópsia das gônadas de alta precisão. O método descrito oferece possibilidades para a rápida determinação da maturidade das gônadas das fêmeas. A aplicação da ultrassonografia é totalmente segura para peixes e o dispositivo portátil de ultrassonografia pode ser utilizado tanto no laboratório como em condições de campo. Palavras-chave: Enguia-Européia. Maturação. Sexo. Ultrassonografia. USG.

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“…The six surviving gynogenetic fish from this group were sexed 3 days later by ultrasound investigation using Tela-Vet 1000 equipped with a 5-8 MHz linear transducer (Classic Medical, Tequesta, Florida). Ultrasound is a noninvasive method that has been shown to accurately determine the sex in several species of fish (Martin et al 1983;Reimers et al 1987;Shields et al 1993;Blythe et al 1994;Colombo et al 2004;Masoudifard et al 2011). The fish were anesthetized with quinaldine sulfate and placed in a pan of water.…”

Section: Methodsmentioning

confidence: 99%

Evidence of Female Heterogamety in Largemouth Bass, Based on Sex Ratio of Gynogenetic Progeny

Glennon¹,

Gomelsky²,

Schneider³

et al. 2012

N American J Aquac

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Meiotic gynogenetic progeny in largemouth bass Micropterus salmoides have been obtained by inseminating largemouth bass eggs with UV‐irradiated sperm from white bass Morone chrysops or striped bass Morone saxatilis and suppressing the second meiotic division by hydrostatic pressure. The sex composition of gynogenetic progeny was determined by dissection or ultrasound investigation of 1‐year‐old fish. Among the 21 fish analyzed, 7 fish (33.3%) were male and 14 fish (66.7%) were female. The presence of males in meiotic gynogenetic progeny suggests the existence of female heterogamety (WZ females, ZZ males) in largemouth bass.

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High validity sex determination of three years old cultured beluga sturgeon (Huso huso) using ultrasonography

Cited by 26 publications

References 17 publications

Experimental and Finite-Difference Time-Domain Simulation Study of the Precise Measurement of the Gonad of a Small Fish Using a 25-MHz Acoustic Focus Probe

Experimental and Finite-Difference Time-Domain Simulation Study of the Precise Measurement of the Gonad of a Small Fish Using a 25-MHz Acoustic Focus Probe

Use of an ultrasound device to determine sex and to perform gonad biopsy in the European eel Anguilla Anguilla

Evidence of Female Heterogamety in Largemouth Bass, Based on Sex Ratio of Gynogenetic Progeny

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