Sustainable Aquaculture and Health Management Journal
نشریه آبزی پروری پایدار و مدیریت بهداشتی
Sustainable Aquaculture. Health. Management. J.
Agriculture
http://ijaah.ir
1
admin
2821-1383
10.52547/ijaah
14
13
en
jalali
1400
8
1
gregorian
2021
11
1
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online
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fulltext
en
Research Article: The effect of different doses of GnRH on stress responses in female koi carp (Cyprinus carpio)
physiopathology
physiopathology
پژوهشي
Original research papers
<div style="text-align: justify;">This study was conducted to evaluate the effect of different doses of GnRH on stress response in female koi carp (<em>Cyprinus</em> <em>carpio</em>). For this purpose, forty sexually mature female koi carp with an average weight of 102.05 ± 9.03 g were divided to four groups and fish received with a single intraperitoneal 0.9% NaCl with 20 mg kg<sup>-1</sup> metoclopramide (C); 10 μg kg body weight<sup>-1 </sup>(BW) GnRH with 20 mg kg<sup>-1</sup> metoclopramide (Gn10); 20 μg kg BW<sup>-1</sup> GnRH with 20 mg kg<sup>-1</sup> metoclopramide (Gn20); 50 μg kg BW<sup>-1</sup> GnRH with 20 mg kg<sup>-1</sup> metoclopramide (Gn50). Blood samples were collected before and after ovulation (approximately 24 h post-injection). The concentrations of plasma cortisol, lactate, and glucose were measured. Broodstocks who received GnRH spawned, while broodstocks of the group C did not spawn. The Gn10, Gn20, and Gn50 treatments led to significantly higher cortisol, lactate, and glucose concentration after ovulation compared to before injection (<em>p< 0.05</em>). The present results showed that females are highly sensitive to manipulation during reproduction and higher levels of the hormone cause more stress broodstocks, so they must be held with minimal disorders, especially during spawning period.</div>
Cyprinus carpio, GnRH, Artificial spawning, Hormonal treatment, Cortisol
61
68
http://ijaah.ir/browse.php?a_code=A-10-341-2&slc_lang=en&sid=1
M. M
Eslami
gharahboron@yahoo.com
10031947532846002792
10031947532846002792
No
Department of Fisheries, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran
S. R
Javadian
ro.javadian@gmail.com
10031947532846002793
10031947532846002793
Yes
Department of Fisheries, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran
S
Bahram
s.bahram@qaemiau.ac.ir
10031947532846002794
10031947532846002794
No
Department of Fisheries, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran