Assessment of ovulation of common carp (Cyprinus carpio) females selected for induced spawning on the basis of external morphological characteristics

T. Szabó, R. Szabó, B. Urbányi, L. Horváth

Research output: Contribution to journalArticle

Abstract

Secondary sexual characteristics such as softening and rounding of the abdomen as well as reddening and protrusion of the anal papilla and vent can be of help to breeders in selecting common carp (Cyprinus carpio) females prepared for propagation. To assess the reliability of this method, long-term data obtained on induced spawning of common carp at a large-scale fish hatchery were evaluated. The average spawning ratio of 2,620 females receiving hormonal injections was 79.8%. The average pseudogonadosomatic index (PGSI) calculated from data on the egg production of 2,086 females was 16.3 ± 5.87% (mean ± SD) for the same period. There was a correlation between fish weight and the time of induction determined by the breeder on the basis of external morphological characteristics. The similarity of the responses of females, including both spawning ratio and PGSI, among the different weight categories proved the reliability of this method for identification.

Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalActa Veterinaria Hungarica
Volume48
Issue number1
Publication statusPublished - 2000

Fingerprint

Carps
Ovulation
Cyprinus carpio
ovulation
spawning
Weights and Measures
Fisheries
abdomen
Abdomen
hatcheries
Ovum
egg production
Fishes
injection
Injections
methodology
fish

Keywords

  • Common carp
  • Induced breeding
  • Maturity
  • Ovulation

ASJC Scopus subject areas

  • veterinary(all)

Cite this

Assessment of ovulation of common carp (Cyprinus carpio) females selected for induced spawning on the basis of external morphological characteristics. / Szabó, T.; Szabó, R.; Urbányi, B.; Horváth, L.

In: Acta Veterinaria Hungarica, Vol. 48, No. 1, 2000, p. 1-8.

Research output: Contribution to journalArticle

@article{ca47e35b439d47a2a2e66288128b6f14,
title = "Assessment of ovulation of common carp (Cyprinus carpio) females selected for induced spawning on the basis of external morphological characteristics",
abstract = "Secondary sexual characteristics such as softening and rounding of the abdomen as well as reddening and protrusion of the anal papilla and vent can be of help to breeders in selecting common carp (Cyprinus carpio) females prepared for propagation. To assess the reliability of this method, long-term data obtained on induced spawning of common carp at a large-scale fish hatchery were evaluated. The average spawning ratio of 2,620 females receiving hormonal injections was 79.8{\%}. The average pseudogonadosomatic index (PGSI) calculated from data on the egg production of 2,086 females was 16.3 ± 5.87{\%} (mean ± SD) for the same period. There was a correlation between fish weight and the time of induction determined by the breeder on the basis of external morphological characteristics. The similarity of the responses of females, including both spawning ratio and PGSI, among the different weight categories proved the reliability of this method for identification.",
keywords = "Common carp, Induced breeding, Maturity, Ovulation",
author = "T. Szab{\'o} and R. Szab{\'o} and B. Urb{\'a}nyi and L. Horv{\'a}th",
year = "2000",
language = "English",
volume = "48",
pages = "1--8",
journal = "Acta Veterinaria Hungarica",
issn = "0236-6290",
publisher = "Akademiai Kiado",
number = "1",

}

TY - JOUR

T1 - Assessment of ovulation of common carp (Cyprinus carpio) females selected for induced spawning on the basis of external morphological characteristics

AU - Szabó, T.

AU - Szabó, R.

AU - Urbányi, B.

AU - Horváth, L.

PY - 2000

Y1 - 2000

N2 - Secondary sexual characteristics such as softening and rounding of the abdomen as well as reddening and protrusion of the anal papilla and vent can be of help to breeders in selecting common carp (Cyprinus carpio) females prepared for propagation. To assess the reliability of this method, long-term data obtained on induced spawning of common carp at a large-scale fish hatchery were evaluated. The average spawning ratio of 2,620 females receiving hormonal injections was 79.8%. The average pseudogonadosomatic index (PGSI) calculated from data on the egg production of 2,086 females was 16.3 ± 5.87% (mean ± SD) for the same period. There was a correlation between fish weight and the time of induction determined by the breeder on the basis of external morphological characteristics. The similarity of the responses of females, including both spawning ratio and PGSI, among the different weight categories proved the reliability of this method for identification.

AB - Secondary sexual characteristics such as softening and rounding of the abdomen as well as reddening and protrusion of the anal papilla and vent can be of help to breeders in selecting common carp (Cyprinus carpio) females prepared for propagation. To assess the reliability of this method, long-term data obtained on induced spawning of common carp at a large-scale fish hatchery were evaluated. The average spawning ratio of 2,620 females receiving hormonal injections was 79.8%. The average pseudogonadosomatic index (PGSI) calculated from data on the egg production of 2,086 females was 16.3 ± 5.87% (mean ± SD) for the same period. There was a correlation between fish weight and the time of induction determined by the breeder on the basis of external morphological characteristics. The similarity of the responses of females, including both spawning ratio and PGSI, among the different weight categories proved the reliability of this method for identification.

KW - Common carp

KW - Induced breeding

KW - Maturity

KW - Ovulation

UR - http://www.scopus.com/inward/record.url?scp=0034573362&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034573362&partnerID=8YFLogxK

M3 - Article

C2 - 11402668

AN - SCOPUS:0034573362

VL - 48

SP - 1

EP - 8

JO - Acta Veterinaria Hungarica

JF - Acta Veterinaria Hungarica

SN - 0236-6290

IS - 1

ER -