Enhancing goldfish reproduction: Role of substrates in optimizing fertilization and hatching rates under controlled conditions

Asma Jaman; Umme Ohida Rahman; Nahid Sultana Lucky; Md. Sadiqul Islam

doi:10.12714/egejfas.41.4.04

EN TR

Enhancing goldfish reproduction: Role of substrates in optimizing fertilization and hatching rates under controlled conditions

Abstract

Ornamental fish production is significantly impacted by whether fish spawn naturally under controlled conditions. Therefore, goldfish (Carassius auratus) were allowed to breed naturally using various types of substrates to investigate their effects on ovulation, fertilization, and hatching rates in an experimental setup. The goldfish were subjected to five different substrate treatments: T1 (water hyacinth), T2 (jute rope), T3 (polythene), T4 (net), and T5 (no substrate). The optimal pH and dissolved oxygen levels for goldfish spawning were found to be 7.14 to 7.24 and 5.65 to 6.22 mg/L, respectively. Results indicated that the highest number of eggs (356.66±40) was observed in the polythene substrate (T3), while no eggs were found in the absence of substrate (T5). The polythene substrate also yielded the highest fertilization rate (93%) and hatching rate (95.01%). Notably, goldfish exhibited no spawning behavior without any substrate, suggesting that substrate may act as both a spawning substrate and an essential cue for ovulation in goldfish. Furthermore, the study's findings support the recommendation of goldfish as substrate breeders. This research offers valuable insights for small-scale fish farmers, entrepreneurs, and hatchery owners looking to enhance goldfish spawning techniques in aquarium settings.

Keywords

Japon balığı üremesinin iyileştirilmesi: Kontrollü koşullar altında döllenme ve yumurtadan çıkma oranlarının optimize edilmesinde substratların rolü

Öz

Süs balığı üretimi, balıkların kontrollü koşullar altında doğal olarak yumurtlayıp yumurtlamadıklarından önemli ölçüde etkilenir. Bu nedenle, Japon balıklarının (Carassius auratus) yumurtlama, döllenme ve yumurtadan çıkma oranları üzerindeki etkilerini araştırmak için çeşitli substrat türleri kullanılarak doğal yollarla üremelerine izin verilmiştir. Süs balığı üretimi, balıkların kontrollü koşullar altında doğal olarak yumurtlayıp yumurtlamadıklarından önemli ölçüde etkilenir. Bu nedenle, Japon balıklarının (Carassius auratus) yumurtlama, döllenme ve yumurtadan çıkma oranları üzerindeki etkilerini araştırmak için çeşitli substrat türleri kullanılarak doğal yollarla üremelerine izin verilmiştir. Sonuçlar, en yüksek yumurta sayısının (356,66±40) polietilen substratta (T3) gözlendiğini, substrat yokluğunda (T5) ise hiç yumurta bulunmadığını göstermiştir. Polietilen substrat aynı zamanda en yüksek döllenme oranını (%93) ve kuluçka oranını (%95,01) vermiştir. Özellikle, Japon balıkları herhangi bir substrat olmadan yumurtlama davranışı sergilememiştir, bu da substratın Japon balıklarında hem yumurtlama substratı hem de yumurtlama için önemli bir ipucu olarak işlev görebileceğini düşündürmektedir. Ayrıca, çalışmanın bulguları Japon balıklarının substrat yetiştiricileri olarak önerilmesini desteklemektedir. Bu araştırma, akvaryum ortamlarında Japon balığı yumurtlama tekniklerini geliştirmek isteyen küçük ölçekli balık yetiştiricileri, girişimciler ve kuluçkahane sahipleri için değerli bilgiler sunmaktadır.

Anahtar Kelimeler

Supporting Institution

This work was funded by a grant from the Bangladesh Agricultural Research Council (BARC), Dhaka, Bangladesh, through the PIU-BARC, NATP-2 program. The grant supported the project titled "Business Opportunities of Ornamental Fisheries in Bangladesh: Development of a Production and Economic Assessment Model.

Project Number

10.12714/egejfas.41.4.04

Ethical Statement

All procedures for experiments involving humans and animals (fish) adhered to the ethical standards set by the Ethical Committee of Bangladesh Agricultural University, Mymensingh. Additionally, all survey participants provided informed consent.

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Details

Primary Language

English

Subjects

Fish Breeding

Journal Section

Research Article

Authors

Asma Jaman
0000-0001-5681-6023
Bangladesh

Umme Ohida Rahman
0000-0001-7178-0794
Bangladesh

Nahid Sultana Lucky
0000-0002-1931-251X
Bangladesh

Md. Sadiqul Islam ^*
0000-0001-9357-4254
Bangladesh

Early Pub Date

December 9, 2024

Publication Date

December 11, 2024

Submission Date

August 2, 2024

Acceptance Date

October 21, 2024

Published in Issue

Year 1970 Volume: 41 Number: 4

DOI

https://doi.org/10.12714/egejfas.41.4.04

IZ

https://izlik.org/JA38MP84FZ

Cite

RIS / Bibtex

APA

Jaman, A., Rahman, U. O., Lucky, N. S., & Islam, M. S. (2024). Enhancing goldfish reproduction: Role of substrates in optimizing fertilization and hatching rates under controlled conditions. Ege Journal of Fisheries and Aquatic Sciences, 41(4), 280-285. https://doi.org/10.12714/egejfas.41.4.04