Coelioscopy technique for gender in surubim hybrid<i>Pseudoplatystoma corruscans × Pseudoplatystoma reticulatum</i>

Chaves, Glauco Vinício; Gheller, Valentim Arabicano; Teixeira, Edgar de Alencar; Luz, Ronald Kennedy

doi:10.1111/are.12243

Cited by 3 publications

(1 citation statement)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several methods have been used to identify the sex of fish, including the dosage of sex steroids, such as testosterone, 11-ketotestosterone and 17β-estradiol (Chu-Koo et al, 2009;Viayeh, Webb, Hallajian, Kazemi, & Yali, 2006); ultrasound imaging (Martin, Myers, Sower, Phillips, & McAuley, 1983;Rotta, Pedroso, & Acorci, 2007); coeliotomy (Filho et al, 2016); endoscopy (Chaves, Gheller, Teixeira, & Luz, 2015;Falahatkar & Poursaeid, 2013); gonadal biopsy (Alam & Nakamura, 2008;Falahatkar, Akhavan, Gilani, & Abbasalizadeh, 2013); morphometric parameters (Viayeh et al, 2006); and DNA markers (Griffiths, Orr, Adam, & Barber, 2000). Amongst these, only ultrasound imaging is used in tuviras, which has a success rate of 98% (Rotta et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Abdominal puncture as a new method to determine sex in tuviras ( Gymnotus sp.)

et al. 2019

View full text Add to dashboard Cite

Tuviras (Gymnotus sp.) are a small fish widely used as live bait in sport fishing. Interest in its culture has increased, but there are still several bottlenecks that need to be solved. For example, the process of sexing in tuviras is difficult since they do not present sexual dimorphism. Thus, the aim of this study was to verify if an abdominal puncture could be used as an inexpensive, fast and reliable technique to identify the sex of adult Gymnotus sp. Before performing the abdominal puncture, five individuals were dissected to determine the exact location of the gonads. Based on this information, the abdominal puncture was performed 6 cm away from the tip of the animal's head and 1 cm below the lateral line with an intravenous infusion set connected to a 5 ml syringe. An abdominal puncture was performed on 24 adult animals that were larger than 20 cm in length. Twenty‐two individuals were sexed correctly, and the accuracy degree was 91.66%. The survival rate of the animals 96 hr after the abdominal puncture was 100%. These results indicate that the abdominal puncture is an easy, simple, fast and inexpensive technique that can be performed in a reliable way.

show abstract

Section: Introductionmentioning

confidence: 99%

Abdominal puncture as a new method to determine sex in tuviras ( Gymnotus sp.)

et al. 2019

View full text Add to dashboard Cite

show abstract

Sex identification of the ornamental amazon fish Astronotus ocellatus by videoceloscopy and gonadal biopsy

Mansur

Melo

Chiacchio

et al. 2021

Animal Reproduction Science

View full text Add to dashboard Cite

Early sexing techniques in Lophiosilurus alexandri (Steindachner, 1876), a freshwater carnivorous catfish

et al. 2016

View full text Add to dashboard Cite

This study aimed to evaluate sexing techniques for juvenile Lophiosilurus alexandri. With this aim, we evaluated three techniques: coelioscopy, performed with the use of video surgery equipment; coeliotomy, a surgical procedure for direct visualization of the gonads; and sex determination using a urethral probe to compare the genital papillae. For coelioscopy, the survival rate was 100% 30 days after the procedure, and the fish restarted eating 10 days after surgery. This technique resulted in a 100% correct identification of individuals identified as females, whereas for males, it was 66.6%. There was no significant difference between males and females for anesthesia induction and recovery times. However, the procedure took longer for males because of the difficulty in observing the gonads, which can be attributed to the large amount of visceral fat in males. Coeliotomy also resulted in a 100% survival rate 30 days after surgery, and the efficiency of this technique was 96.3% for males and 93.9% for females. The fish restarted eating between 10 and 14 days after surgery, and there were no significant differences between males and females for anesthesia induction and recovery times for the surgical procedure to visualize the gonads (P > 0.05). The urethral probe technique was less efficient with an accuracy rate of 67.8% and 81.8% for males and females, respectively. We conclude that coeliotomy was more efficient for sexing both sexes of juvenile L. alexandri.

show abstract

Coelioscopy technique for gender in surubim hybridPseudoplatystoma corruscans × Pseudoplatystoma reticulatum

Cited by 3 publications

References 10 publications

Abdominal puncture as a new method to determine sex in tuviras ( Gymnotus sp.)

Abdominal puncture as a new method to determine sex in tuviras ( Gymnotus sp.)

Sex identification of the ornamental amazon fish Astronotus ocellatus by videoceloscopy and gonadal biopsy

Early sexing techniques in Lophiosilurus alexandri (Steindachner, 1876), a freshwater carnivorous catfish

Contact Info

Product

Resources

About