|
Comparison of reproduction and growth of Tata strain and farmed common carp
|
Mohaddeseh Ahmadnezhad *   , Shahram Behmanesh1 , Mahmoud Bahmani2 , Mohammad Sayad Borani1 , Adel Hosseinjani1 , Elham Jorfi2 , Seyed Afshin Amiri1 , Erfan Akbari Nargesi1 , Hadi Babayi1 |
1-Inland Waters Aquaculture Research Center, Iranian Fisheries Sciences Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Bandar Anzali, Iran , m_ahmadnezhad@yahoo.com
2- Iranian Fisheries Science Research Institute, Agriculture Research, Extention and Education Organization,Tehran, Iran. |
|
|
Abstract: (352 Views) |
Introduction: The "Tata" is a type of common carp bred in Hungary, whose eyed eggs are introduced to Iran a few years ago to address the challenges faced by warm water fish farmers due to a lack of access to quality broodstock and modified fry with rapid growth rates. This study aims to evaluate the advantages of the Tata strain compared to the farmed common carp in Guilan Province by comparing the propagation indices and growth performance of their juveniles
Materials and Methods: Both breeds were propagated through a single injection of the Ovulin hormone. Following a 60-day rearing period, fish with an average initial weight of 21 gr were kept in fiberglass tanks.
Results and Discussion: percentage, measuring 1.53 ± 0.05 mm and 97.50 ± 0.76%, respectively (p<0.05). Additionally, the average hatch percentage for the Tata breed was 98.00 ± 0.58%, which is 13% higher than that of the farmed breed. The average weight of one-day-old Tata larvae was 2.54 ± 0.03 mg, significantly greater than the average weight of one-day-old larvae of the farmed breed, which was 1.68 ± 0.04 mg (p<0.05). There were no significant differences in sperm motility and lifespan between the two breeds, although the spermatocrit of the Tata breed was notably lower than that of the farmed breed. In terms of growth performance, the study found that, under equal rearing conditions, the Tata breed demonstrated significantly higher average final weight and total length, percentage of Weight Gain and Length Gain, specific growth factor, average daily growth, and feed efficiency, while exhibiting a lower food conversion factor compared to the farmed breed (p<0.05).
Conclusion: The most significant advantages of the Tata breed identified in this study include higher quality eggs, a greater percentage of embryo survival and hatching rates, and superior growth performance compared to the farmed breed. Therefore, the Tata breed could be a suitable candidate for selection and breeding in future genetic improvement programs. |
|
| Keywords: Hungarian Tata Common carp, Reproduction, Growth, Guilan province, Iran |
|
|
Full-Text [PDF 733 kb]
(65 Downloads)
|
Type of Study: Research |
Subject:
Special
Received: 2024/08/19 | Accepted: 2025/01/5 | Published: 2025/07/1
|
|
|
|
|
|
|
| Send email to the article author |
|
|
|
| Add your comments about this article |
|
|
|
