EFFECTS OF FISH MEAL SUBSTITUTION WITH SUPER WORM (Zophobas morio) MEAL ON GROWTH PERFORMANCE OF RAINBOW TROUT FINGERLINGS

Abstract

A 45 days feeding trial was conducted to evaluate the effects of dietary fishmeal replacement by super worm (Zophobas morio) meal (SWM) on growth performance, survival, liver, kidney and intestine histology of rainbow trout fingerlings. Fish in triplicate groups (average initial weight 1.39±0.03 g) were fed twice a day ad libitum with 4 isonitrogenous (52% crude protein) experimental feeds in which fish meal were substituted 0, 25%, 50% and 100% with SWM. A separate group of three replicates were fed with a commercial feed. Fish fed with commercial diet and %25 SWM revealed the highest values for growth performance but survival rates were variable. These results indicate that fish meal replacement with SWM up to 25% have no adverse effect on rainbow trout fingerlings and a decrease in growth parameters was obvious with increasing levels of SWM in diets.

Keywords

• Fish feed,Growth,Histology,Zophobas morio

GÖKKUŞAĞI ALABALIĞI YAVRU YEMLERİNDE BALIK UNU YERİNE SÜPER KURT (Zophobas morio) UNU İKAMESİNİN BÜYÜME PERFORMANSINA ETKİLERİ

Öz

Bu çalışma, balık unu ile süper kurt (Zophobas morio) unu ikamesinin alabalık yavrularında büyüme performansı, yaşama oranı, karaciğer, böbrek ve incebağırsak histolojisi üzerindeki etkilerini izlemek üzere 45 gün süreyle 3 paralelli yürütülmüştür. Ortalama başlangıç ağırlığı 1,39±0,03 gr olan yavru alabalıklar süper kurt unu ile balık ununun %0, %25, %50 %100 oranlarında ikame edildiği dört farklı yem ve bir ticari alabalık yavru yemi ile günde iki kez doyuncaya kadar elle yemlenmiştir. Ticari yem ve %25 süper kurt unu içeren yem ile beslenen gruplarda canlı ağırlık kazancı ve boy artışı bakımından en iyi değerler görülürken, yemdeki süper kurt unu oranı arttıkça büyüme performansı olumsuz etkilenmiştir. Gruplarda gözlenen yaşama oranları değişkenlik gösterse de süper kurt unu kullanılan gruplarda daha düşük gerçekleşmiş ve istatistiki olarak da aradaki fark önemlidir (p<0,05). Elde edilen sonuçlar, süper kurt ununun alabalık yavru yemlerinde balık unu ile büyüme performansını olumsuz etkilemeden %25 düzeyine kadar ikame edilebileceğini ortaya koymuştur. 

Anahtar Kelimeler

• Balık yemi,Büyüme performansı,Histoloji,Zophobas morio

References

1. Adeyemo, O.K. (2008). Histological alterations observed in the gills and ovaries of Clarias gariepinus exposed to environmentally relevant lead concentrations. Journal of Environmental Health, 70(9): 48-51.
2. Alegbeleye, W. O., Obasa, S. O., Olude, O. O., Otubu, K., & Jimoh, W. (2012). Preliminary evaluation of the nutritive value of the variegated grasshopper (Zonocerus variegatus L.) for African catfish Clarias gariepinus (Burchell. 1822) fingerlings. Aquaculture Research 43:412–420.
3. Ashley, L.M. (1975). Comparative fish histology. In the Pathology of Fishes: Proceedings of a Symposium (p. 1). Univ. of Wisconsin Press.
4. Bondari, K., & Sheppard, D.C. (1987). Soldier fly Hermetia illucens L., as feed for channel catfish, Ictalurus punctatus and blue tilapia, (Oreochromis aureus). Aquacult. Fisheries Manage. 18: 209-220.
5. Boomker, J. (1981). The haematology and histology of the haemopoietic organs of South African freshwater fish. III. The leucocytes, plasma cells and macrophages of Clarias gariepinus and Sarotherodon mossambicus. The Onderstepoort Journal of Veterinary Research, 48(4): 185-193.
6. Fagbenro, O.A., & Davies, S.J. (2001). Use of soybean flour (dehulled solvent-extracted soybean) as fish meal substitute in practical diets for African catfish, Clarias gariepinus (Burchell 1822): growth, feed utilization and digestibility. Journal of Applied Ichthyology, 17(2): 64-69.
7. Genc, M.A., Aktas, M., Genc, E., & Yılmaz E., (2007b). Effects of dietary mannan oligosaccharide on growth, body composition and hepatopancreas histology of Penaeus semisulcatus (De Haan 1844). Aquaculture Nutrition, 13(2): 156-161.
8. Genc, M.A., Yılmaz, E., Genc, E., & Aktas, M. (2007a). Effects of dietary mannan oligosaccharides (MOS) on growth, body composition, and intestine and liver histology of the hybrid tilapia (Oreochromis niloticus x O. aureus). Israel Journal of Aquaculture, 59 (1):10-16.

9. Hardy, R.W., & Tacon, G.J. (2002). Fish meal: historical uses, production trends and future outlook for supplies. R.R. Stickney and J.P. MacVey editors. Responsible Marine Aquaculture, CABI Publishing, New York, USA, Pp. 311-325.
10. Hibiya, T., Yokote, M., Oguri, M., Sato, H., Takashima, F., & Aida, K. (1982). An Atlas of Fish Histology. Normal and pathological features. Gustav Fischer Akademie Verlag, Berlin. 147 p.
11. İkizdoğan, A.T. (2006). Farklı yem katkılarının karabalık (Clarias gariepinus) larvalarının büyüme performansı ile hepatopankreas ve barsak histolojisi üzerine etkileri. Mustafa Kemal Üniversitesi Fen Bilimleri Enstitüsü, Yüksek Lisans Tezi, 82 s.
12. Jabir, M.D.A.R., Razak, S.A., & Vikineswary, S. (2012). Nutritive potential and utilization of super worm (Zophobas morio) meal in the diet of Nile tilapia (Oreochromis niloticus) juvenile. African Journal of Biotechnology 11:6592–6598.
13. Kesici, T., & Kocabaş, Z. (2007). Biyoistatistik. Ankara Üniversitesi Eczacılık Fakültesi Yayın No:94, 369 s.
14. Ng, W.K., Liew, F.L., Ang, L.P., & Wong, K.W. (2001). Potential of mealworm (Tenebrio molitor) as an alternative protein source in practical diets for African catfish. Aquacult. Res. 32: 273-280.
15. Oonincx, D.G.A.B., & Dierenfeld , E.S. (2012). An Investigation Into the Chemical Composition of Alternative Invertebrate Prey. Zoo Biology 31: 40–54.
16. Rumpold, B.A., & Schlüter, O.K. (2013). Nutritional composition and safety aspects of edible insects. Mol. Nutr. Food Res. 2013, 57, 802–823.
17. Sogbesan, A.O. & Ugwumba, A.A.A. (2008). Nutritional evaluation of termite (Macrotermes subhyalinus) meal as animal protein supplements in the diets of Heterobranchus longifilis (Valenciennes, 1840) fingerlings. Turkish Journal of Fisheries andAquatic Sciences 8:149–157.
18. Zhou, Q.C., & Yue, Y.R. (2012). Apparent digestibility coefficients of selected feed ingredients for juvenile hybrid tilapia, Oreochromis niloticus×Oreochromis aureus. Aquaculture Research 43:806–814.