Publication: Gökkuşağı Alabalıklarının (Oncorhynchus Mykiss W.1792) Denizsuyu ve Tatlısudaki Büyüme Farklılıklarının Karşılaştırılması
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III GÖKKUŞA?I ALABALIKLARININ (Oncorhynchus mykiss W.1792) DENİZSUYU VE TATLISÜDAKi BÜYÜME FARKLILIKLARININ KARŞILAŞTIRILMASI ABSTRAKT Denemede, ortalama vücut ağırlıkları 88.08 g ve 85.58 g olan gökkuşağı alabalıkları, sırasıyla tatlısu ortamında (I. grup) ve deniz ortamında (II. grup) yetiştirilmiş olup, denizsuyu ve tatlısudaki büyüme farklılıkları incelenmiştir. 28.12.1995 - 26.03.1996 tarihleri arasında 90 gün süreyle gerçekleştirilen deneme sonunda, gruplardan sırasıyla 295.56 ± 5.65 g ve 388.41 ± 8.12 g ortalama canlı ağırlıklar elde edilmiş ve hasatta elde edilen ortalama canlı ağırlıklar arasındaki fark önemli (p<0.05) çıkmıştır. Deneme sonunda gruplara ait ortalama canlı ağırlık artışları sırasıyla, 207.48 g ve 302.83 g olarak gerçekleşmiş, günlük yüzde canlı ağırlık artışları ise, % 2.61 ve % 3.37 olarak saptanmıştır. Gruplardan yem değerlendirmeye ilişkin elde edilen değerler sırasıyla 1.20 ve 1.21, deneme sonunda grupların kondüsyon faktörleri ise, sırasıyla 1.22 ve 1.19 olarak belirlenmiştir. Anahtar Kelimeler: Gökkuşağı alabalığı, tatlısu, denizsuyu, kafes balıkçılığı, büyüme
IV A COMPARISON OF THE GROWTH DIFFERENCES OF RAINBOW TROUT (Oncorhynchus mykiss W. 1792) IN FRESH WATER AND SEA WATER (The Black Sea) ABSTRACT In the research, rainbow trout with initial mean weights of 88.08 g and 85.58 g were grown-on in fresh (I. group) and sea water (II. group), respectively to determinate the growth differences in fresh and sea water. At the end of the experiment, final average weights of 295.56 ± 5.65 g and 388.41 ± 8.12 g have been obtained, respectively and the difference between the two harvesting weights was found statistically significant (p<0.05). The average individual weight gain was 207.48 g in the I. group and 302.83 g in the II. group, while the daily growth rates were found as 2.61 % and 3.37 %, respectively. A feed conversion rate of 1.20 has been determined for the I. group and 1.21 for the II. group, the condition factors were determined as 1.22 and 1.19, respect ive ly. Key Words: Rainbow trout, freshwater, seawater, cage culture, growth
IV A COMPARISON OF THE GROWTH DIFFERENCES OF RAINBOW TROUT (Oncorhynchus mykiss W. 1792) IN FRESH WATER AND SEA WATER (The Black Sea) ABSTRACT In the research, rainbow trout with initial mean weights of 88.08 g and 85.58 g were grown-on in fresh (I. group) and sea water (II. group), respectively to determinate the growth differences in fresh and sea water. At the end of the experiment, final average weights of 295.56 ± 5.65 g and 388.41 ± 8.12 g have been obtained, respectively and the difference between the two harvesting weights was found statistically significant (p<0.05). The average individual weight gain was 207.48 g in the I. group and 302.83 g in the II. group, while the daily growth rates were found as 2.61 % and 3.37 %, respectively. A feed conversion rate of 1.20 has been determined for the I. group and 1.21 for the II. group, the condition factors were determined as 1.22 and 1.19, respect ive ly. Key Words: Rainbow trout, freshwater, seawater, cage culture, growth
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Tez (yüksek lisans) -- Ondokuz Mayıs Üniversitesi, 1996
Libra Kayıt No: 36743
Libra Kayıt No: 36743
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47
