Iranian Journal of Fisheries Sciences
مجله علوم شیلاتی ایران
IJFS
Agriculture
http://jifro.ir
1
admin
1562-2916
10.18869/acadpub.ijfs
en
jalali
1390
10
1
gregorian
2012
1
1
11
1
online
1
fulltext
en
Effects of different starter diets on growth indices of Caspian Kutum, Rutilus frisii kutum larvae
Biology & physiology
Biology & physiology
پژوهشي
Orginal research papers
<p> Six different diets including two rainbow trout starters, <i>Gammarus</i> dry powder, shrimp dry powder, egg yolk dry powder and newly hatched <i>Artemia</i> were used in feeding of Caspian Kutum larvae. During a 4-week trial, larvae with a mean weight of 17.5 ± 4.7 mg were fed with three replicates and growth parameters were measured at the end of the experiment. Thirty fish in each experimental unit with 3 L volume were fed 6 times daily according to their satiation. Results showed that there were significant differences in the final weight, final length, body weight increase, voluntary feed intake and specific growth rate for weight and length among the treatments (P<0.05), but not in the condition factor (P>0.05). The best performance was observed in fish fed <i>Artemia</i> nauplii. The survival rate was significantly different among the treatment (P<0.05) which the highest (75.6 ± 3.8%) and lowest (22.2 ± 11.7%) were observed in fish fed <i>Artemia</i> nauplii and Coppens, respectively. According to obtained results, it appears that except <i>Artemia</i>, the most suitable and inexpensive diet is egg yolk powder, which can results in high growth performance and survival rates. The results of this study suggested that using dry non-live diets with good composition could be replaced with <i>Artemia</i> that had suitable growth and survival rate in Caspian Kutum during larval 0<strong></strong> </p>
food, practical diet, growth, survival, larvae, Caspian Kutum
28
36
http://jifro.ir/browse.php?a_code=A-10-1-134&slc_lang=en&sid=1
B.
Falahatkar
falahatkar@guilan.ac.ir
10031947532846002658
10031947532846002658
Yes
H.
Mohammadi
10031947532846002659
10031947532846002659
No
H.
Noveirian
10031947532846002660
10031947532846002660
No