THE EFFECT OF MICRODIETS ON SURVIVAL AND GROWTH RATE OF GILTHEAD SEA BREAM (Sparus aurata L, 1758) LARVAE GROWTH IN DIFFERENT SALINITY LEVEL

Year 2016, Volume: 31 Issue: 2, 79 - 85, 04.12.2016

Türker Bodur , Mehmet Özbaş

Abstract

In this study, gilthead seabream larvae were fed with
microdiets having added digestive enzymes (porcine, pancreatin enzymes) in
between 16^th-30^th day after yolk resorption and their
growth, weight and survival rate were determined. After yolk resorption (the 4^th
day) until the 15^th day, larvae being fed with only rotifer (B. pilicatilis), between 16^th-20^th
days larvae were fed with rotifer and microdiets together. Between the 21^th
and 30^th days larvae were fed only with microdiets. By taking into
consideration the salinity desire of larvae in constituting trial groups,
larvae were fed with microdiets in both  
25ppt and ‰40. The growth was founded significant in all of trial groups
that were fed with live food (in ‰40 and 25‰ salinity) according to those fed
with microdiet (P < 0.05). The growth in ‰25 salinity was founded
significant both for live food and microdiet in ‰40 salinity (P < 0.05). The
highest survival rate was founded significant by feeding live food in 25‰
salinity (P<0.05).                

Keywords

Gilthead seabream, Sparus aurata, Larval feeding, Microdiet, Enzymes

FARKLI TUZLULUK SEVİYELERİNDE YETİŞTİRİLEN ÇİPURA (Sparus aurata L, 1758) LARVALARININ BÜYÜME VE YAŞAM ORANINA MİKRO DİYET YEMLERİN ETKİSİ

Abstract

Araştırmada, deniz balıkları larva yetiştiriciliğinde
yoğun olarak kullanılan Brachionus spp.,
Artemia spp. gibi canlı yemlere alternatif, enzim ilaveli mikro diyet
yemlerin, Sparus aurata türünün erken
larval döneminde kullanımının etkisi araştırılmıştır. Denemede çipura
larvaları, besin kesesi çekildikten sonra 15. güne kadar Brachionus spp. ile beslenmiş larvalar, 16. gün ile 30. günler
arasında enzim ilave edilmiş mikro diyet yemlerle beslenmesi yapılarak toplam
boy uzaması, ağırlık artışı ve yaşama oranları tespit edilmiştir. Canlı yem
grubunda larvalar deneme süresince sadece
Brachionus spp. ile beslenmiştir. Deneme gruplarının oluşturulmasında
larvaların tuzluluk isteği göz önünde tutularak hem ‰40, hem de ‰25 tuzlulukta
larvalar mikro diyet yemle beslenmiştir. Deneme süresince ‰40 ve ‰25 tuzlulukta
canlı yemle beslenen gruplarında larval büyümenin (ağırlıkça ve boyca) mikro
diyet yemle beslenen gruplara göre istatiksel olarak daha iyi olduğu
belirlenmiştir (P<0,05). Tuzluluğun ‰25 olduğu grupta büyüme, ‰40
tuzluluktaki hem canlı yem, hem de mikro diyet yemle beslenen gruplara göre
istatistiksel olarak daha iyi olduğu belirlenmiştir (P<0,05). En yüksek
yaşama oranı, ‰25 tuzlulukta canlı yem ile beslenen grupta gözlenmiştir. 

Keywords

Çipura, Sparus aurata, Larva besleme, Mikro diyet yem, Yaşam oranı, Büyüme

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