Reproductive Performance of Hatchery-Originated Black Sea Salmon Broodstocks' (Salmo labrax PALLAS, 1814) F5 and F6 Filial Generations

Osman Tolga Özel; Eyüp Çakmak; Ekrem Cem Çankırılıgil; Recayi Çimagil; Zehra Duygu Düzgüneş

Makale detayları

Reproductive Performance of Hatchery-Originated Black Sea Salmon Broodstocks' (Salmo labrax PALLAS, 1814) F5 and F6 Filial Generations

Yazarlar:

Osman Tolga Özel | Eyüp Çakmak | Ekrem Cem Çankırılıgil | Recayi Çimagil | Zehra Duygu Düzgüneş

Yayıncı:

Isparta University of Applied Sciences

Ana Başlıklar:

Yapısal Biyoloji

Dergi:

Acta Aquatica Turcica Vol.19 Issue 4, pp.289-297

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001303833

pISSN:

2651-5474

Anahtar kelimeler:

Özet:

 In this study, reproductive performances of F5 and F6 generation hatchery-originated female Black Sea salmon Salmo labrax were evaluated to determine the effects of the ongoing selective breeding program. The study was conducted in freshwater pools and marine cage systems between 2018 and 2021. For the study, 53 specimens from F5 generation females with an average length of 52.717.08 cm and weight of 1561.29639.76 gr, and also 56 broodstıcks specimens from F6 generation females with an average length of 51.925.35 cm and weight of 1506.12417.28 gr were used. Gonad maturity controls and spawning studies were carried out in the 2018-2019, 2019-2020, and 2020-2021 breeding periods along the entire season, lasting from November to January. The number of ovulating females, their fecundity, egg diameters, and fertilization rates of eggs were recorded. In all seasons, 36.17 of F5 females ovulated in November, and the remaining females 63.83 ovulated in December. Ovulation time in F6 females also showed a similar pattern of 13 of females 37.40 ovulating in November and the remaining majority 62.60 ovulating in December. According to the results, total egg yields as 4439.311675.69 and 4112.081041.16 eggbroodstock, relative egg yields as 2313.44278.48 and 2345.76516.30 eggkg, egg diameters as 5.080.19 and 5.210.17 mm, and fertilization rates as 96.783.24 and 96.633.73 were determined for F5 and F6 generations, respectively. In both generations, as the size of the broodstock increases, the total egg production increases F5: r0.9169, F6: r0.74254, while the relative egg production F5: r-0.2526, F6: r-0.3486 decreases. When the total egg yields and fertilization rates were compared, the difference between the F5 and F6 groups was insignificant p0.05. The condition factors of the two generations were found to be statistically similar p0.05. As a result, it is understood that the maximum broodstock efficiency of the breed has been achieved in the broodstock management as a result of the selective breeding studies applied for the broodstock management.

 In this study, reproductive performances of F5 and F6 generation hatchery-originated female Black Sea salmon Salmo labrax were evaluated to determine the effects of the ongoing selective breeding program. The study was conducted in freshwater pools and marine cage systems between 2018 and 2021. For the study, 53 specimens from F5 generation females with an average length of 52.717.08 cm and weight of 1561.29639.76 gr, and also 56 broodstıcks specimens from F6 generation females with an average length of 51.925.35 cm and weight of 1506.12417.28 gr were used. Gonad maturity controls and spawning studies were carried out in the 2018-2019, 2019-2020, and 2020-2021 breeding periods along the entire season, lasting from November to January. The number of ovulating females, their fecundity, egg diameters, and fertilization rates of eggs were recorded. In all seasons, 36.17 of F5 females ovulated in November, and the remaining females 63.83 ovulated in December. Ovulation time in F6 females also showed a similar pattern of 13 of females 37.40 ovulating in November and the remaining majority 62.60 ovulating in December. According to the results, total egg yields as 4439.311675.69 and 4112.081041.16 eggbroodstock, relative egg yields as 2313.44278.48 and 2345.76516.30 eggkg, egg diameters as 5.080.19 and 5.210.17 mm, and fertilization rates as 96.783.24 and 96.633.73 were determined for F5 and F6 generations, respectively. In both generations, as the size of the broodstock increases, the total egg production increases F5: r0.9169, F6: r0.74254, while the relative egg production F5: r-0.2526, F6: r-0.3486 decreases. When the total egg yields and fertilization rates were compared, the difference between the F5 and F6 groups was insignificant p0.05. The condition factors of the two generations were found to be statistically similar p0.05. As a result, it is understood that the maximum broodstock efficiency of the breed has been achieved in the broodstock management as a result of the selective breeding studies applied for the broodstock management.

 In this study, reproductive performances of F5 and F6 generation hatchery-originated female Black Sea salmon Salmo labrax were evaluated to determine the effects of the ongoing selective breeding program. The study was conducted in freshwater pools and marine cage systems between 2018 and 2021. For the study, 53 specimens from F5 generation females with an average length of 52.717.08 cm and weight of 1561.29639.76 gr, and also 56 broodstıcks specimens from F6 generation females with an average length of 51.925.35 cm and weight of 1506.12417.28 gr were used. Gonad maturity controls and spawning studies were carried out in the 2018-2019, 2019-2020, and 2020-2021 breeding periods along the entire season, lasting from November to January. The number of ovulating females, their fecundity, egg diameters, and fertilization rates of eggs were recorded. In all seasons, 36.17 of F5 females ovulated in November, and the remaining females 63.83 ovulated in December. Ovulation time in F6 females also showed a similar pattern of 13 of females 37.40 ovulating in November and the remaining majority 62.60 ovulating in December. According to the results, total egg yields as 4439.311675.69 and 4112.081041.16 eggbroodstock, relative egg yields as 2313.44278.48 and 2345.76516.30 eggkg, egg diameters as 5.080.19 and 5.210.17 mm, and fertilization rates as 96.783.24 and 96.633.73 were determined for F5 and F6 generations, respectively. In both generations, as the size of the broodstock increases, the total egg production increases F5: r0.9169, F6: r0.74254, while the relative egg production F5: r-0.2526, F6: r-0.3486 decreases. When the total egg yields and fertilization rates were compared, the difference between the F5 and F6 groups was insignificant p0.05. The condition factors of the two generations were found to be statistically similar p0.05. As a result, it is understood that the maximum broodstock efficiency of the breed has been achieved in the broodstock management as a result of the selective breeding studies applied for the broodstock management.

 Bu çalışmada, yürütülen seçici ıslah programının üreme performansına etkisini belirlemek amacıyla, F5 ve F6 nesil kuluçkahane kökenli Karadeniz somonu Salmo labrax anaçlarının üreme bulguları irdelenmiştir. Çalışma, 2018-2021 tarihleri arasında tatlısu havuzlarında ve deniz ağ kafes sisteminde yürütülmüştür. Çalışmada, ortalama boyları 52,717,08 cm ve ortalama ağırlıkları 1561,29639,76 g olan F5 nesil anaçlardan 53 birey, ortalama boyları 51,925,35 cm ve ortalama ağırlıkları 1506,12417,28 g olan F6 nesil anaçlardan 56 birey kullanılmıştır. Farklı nesil anaçların üreme periyodunda aylık üreme oranları, toplam yumurta verimi, nispi yumurta verimi, yumurta çapı ve döllenme oranları belirlenmiştir. 2018-2019, 2019-2020 ve 2020-2021 üreme periyotlarında Kasım-Ocak ayları gonad olgunluk kontrolleri ve sağım çalışmaları yapılmıştır. Sağılan F5 nesil anaçların oranı Kasım ayında  36,17 iken Aralık ayında  63,83, F6 nesil anaçlarda ise bu durum Kasım ayında  37,40 Aralık ayında  62,60 olarak tespit edilmiştir. Bu sonuçlara göre, sağımı gerçekleştirilen F5 ve F6 nesil anaçların, toplam yumurta verimi, nispi yumurta verimi, yumurta çapları ve döllenme oranları sırasıyla 4439,311675,69 ve 4112,081041,16 adetanaç, 2313,44278,48 adetkg ve 2345,76516,30 adetkg, 5,080,19 mm ve 5,210,17 mm  96,783,24 ve  96,633,73 olarak belirlenmiştir. Her iki nesil anaçların büyüklüğü arttıkça toplam yumurta veriminde de arttığı F5: r0,9169, F6: r0.74254 fakat nispi yumurta veriminde ise F5: r-0,2526, F6: r-0.3486 azalma olduğu görülmüştür. Toplam yumurta verimleri ve döllenme oranları karşılaştırıldığında F5 ve F6 grupları arasındaki fark önemsizdir. p0.05. F5 ve F6 nesil anaçların kondisyon faktörlerinin benzer olduğu p0.05 tespit edilmiştir. Sonuç olarak, damızlık yönetimine yönelik uygulanan seçici ıslah çalışmaları sonucunda türün damızlık yönetiminde maksimum üreme verimini ulaşıldığını anlaşılmaktadır.

Makale detayları

Reproductive Performance of Hatchery-Originated Black Sea Salmon Broodstocks' (Salmo labrax PALLAS, 1814) F5 and F6 Filial Generations

Yazarlar:

Osman Tolga Özel | Eyüp Çakmak | Ekrem Cem Çankırılıgil | Recayi Çimagil | Zehra Duygu Düzgüneş

Yayıncı:

Isparta University of Applied Sciences

Ana Başlıklar:

Yapısal Biyoloji

Dergi:

Acta Aquatica Turcica Vol.19 Issue 4, pp.289-297

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001303833

pISSN:

2651-5474

Black Sea salmon

Selective breeding

Reproductive characteristics

Breeding seasonKaradeniz somonu

Seçici ıslah

Üreme özellikleri

Üreme sezonu

Sayı

Makale detayları

Yazarlar: Osman Tolga Özel | Eyüp Çakmak | Ekrem Cem Çankırılıgil | Recayi Çimagil | Zehra Duygu Düzgüneş

Yayıncı: Isparta University of Applied Sciences

Ana Başlıklar: Yapısal Biyoloji

Dergi: Acta Aquatica Turcica Vol.19 Issue 4, pp.289-297

Belge Tipi: Makale

Yayın Tarihi: 1/2023

Belge Dili: İngilizce

Document ID (Org No.): 2001303833

pISSN: 2651-5474

Sayı

Yazarlar:

Osman Tolga Özel | Eyüp Çakmak | Ekrem Cem Çankırılıgil | Recayi Çimagil | Zehra Duygu Düzgüneş

Yayıncı:

Isparta University of Applied Sciences

Ana Başlıklar:

Yapısal Biyoloji

Dergi:

Acta Aquatica Turcica Vol.19 Issue 4, pp.289-297

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001303833

pISSN:

2651-5474