Effect of Feeding to Yolk Sac Consumption in Brook Trout (Salvelinus fontinalis, Mitchill, 1814) Alevin

Bu calismada Kaynak alabaligi (Salvelinus fontinalis, Mitchell, 1824) alevinlerinin yemlemeye bagli besin kesesi tuketimi ve buyume oranlari belirlenmistir. Yumurtalar 11.62±0.56 °C su sicakliginda kuluckalanmis ve yumurtadan cikan yaklasik 500 adet alevin bir akvaryuma yerlestirilmistir. Alevinlerin (21.gun) A ve B olarak 2 gruba ayrilmis ve A grubu gunde 3 kez yemlenmistir. Yumurtalarin % 90’inin yumurtadan ciktigi an 0 kabul edilmistir ve alevinler 7., 14., 21., 28., 35., 42., 49. gunlerde orneklenmistir. A ve B gruplarinin kuru kese agirliklari yumurtadan ciktigi donemde her ikisi icin 23.01±0.76 mg ve serbest yuzme doneminde 0.72±0.27 mg ve 0.70±0.29 mg hesaplanmistir (p 0.05). Besin kesesi donusum randimani, boyca ve agirlikca buyume oranlari, besin kesesi tuketimi ve kondiston faktoru degerleri en yuksek A grubunda hesaplanmistir (p>0.05).

[1]  F. Kutluyer,et al.  Hatching performances and yolk sac absorptions of Caspian brown trout (Salmo trutta caspi̇us T., 1954). , 2012 .

[2]  D. Tocher,et al.  Fish oil replacement and alternative lipid sources in aquaculture feeds , 2010 .

[3]  N. Başçınar.  Effect of Low Salinity on Yolk Sac Absorption and Alevin Wet Weight of Rainbow Trout Larvae (Oncorhynchus mykiss) , 2010 .

[4]  I. Okumus,et al.  Comparison of hatching performances and yolk sac absorptions of Black Sea trout (Salmo trutta labrax Pallas, 1811), brook trout (Salvelinus fontinalis Mitchill, 1814) and their hybrid. , 2010 .

[5]  I. Okumus,et al.  The Development of Brook Trout (Salvelinus fontinalis Mitchill, 1814) Embryos During the Yolk Sac Period , 2003 .

[6]  C. Audet,et al.  Variation in yolk absorption and early growth of brook charr Salvelinus fontinalis (Mitchill), Arctic charr, Salvelinus alpinus (L.), and their hybrids , 1995 .

[7]  R. Peterson,et al.  Yolk utilization by Atlantic salmon (Salmo salar L.) alevins in response to temperature and substrate , 1995 .

[8]  P. Hodson,et al.  The effect of time from hatch on the yolk conversion efficiency of rainbow trout, Salmo gairdneri , 1986 .

[9]  T. Hansen.  Artificial hatching substrate: Effect on yolk absorption, mortality and growth during first feeding of sea trout (Salmo trutta) , 1985 .

[10]  T. Hansen,et al.  Yolk Absorption, Yolk Sac Constrictions, Mortality, and Growth During First Feeding of Atlantic Salmon (Salmo salar) Incubated on Astro-turf , 1985 .