Effect of Feeding to Yolk Sac Consumption in Brook Trout (Salvelinus fontinalis, Mitchill, 1814) Alevin
Öz
In this study, Brook trout (Salvelinus fontinalis, Mitchill, 1824) alevins with feeding yolk sac consumption and growth rates were determined. The eggs were hatched at 11,62±0,56 °C water temperature and hatched alevins were placed in an aquarium about 500 individual. The alevins 21th day were divided two groups as A and B and A group was fed three times daily. When 90% hatching of the eggs were accepted 0 (zero) and alevins were sampled in 7th, 14th, 21th, 28th, 35th, 42th, 49th days. The dry yolk sac weight of A and B groups for both were calculated as 23.01±0.76 mg hatching and 0.72±0.27 mg and 0.70±0.29 mg swim-up stage (p<0.05). Regression analysis of A and B groups with length, wet alevin weight, dry alevin weight, total wet
weight (wet alevin weight + wet yolk sac weight), total dry weight (dry larvae weight + dry yolk sac weight) differences were significantly (P<0.05), while dry and wet yolk sac weights differences were insignificant (P>0.05). The highest yolk sac conversion efficiency, weight and length growth rates, yolk sac absorption and condition factor values were calculated in A group (P>0.05).
Anahtar Kelimeler
Kaynakça
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Ayrıntılar
Birincil Dil
İngilizce
Konular
Hidrobiyoloji
Bölüm
Araştırma Makalesi
Yayımlanma Tarihi
1 Ocak 2015
Gönderilme Tarihi
19 Nisan 2017
Kabul Tarihi
3 Ağustos 2014
Yayımlandığı Sayı
Yıl 2015 Cilt: 2 Sayı: 1