Effects of hazelnut meal levels on growth performance, feed utilization and digestibility in juvenile rainbow trout (Oncorhynchus mykiss)

Bu çalışmada, fındık küspesi (FK) seviyeleri farklı yemlerin Gökkuşağı alabalığı (Oncorhynchus mykiss) yavrularında büyüme, yemden yararlanma ve sindirilebilirlik üzerine etkileri araştırılmıştır. Başlangıç ağırlıkları 37,89±0,02 g olan balıklar, artan oranlarda FK içerecek şekilde hazırlanan dört deneme yemi (sırasıyla %0, %15, %30, %45) ile 60 gün boyunca günde iki kez görünür doygunluk sınırına kadar yemlenmiştir. En yüksek canlı ağırlık artışı (CAA) ve spesifik büyüme oranı (SBO) 1. Yem ve 2. Yem ile beslenen balıklardan elde edilirken rasyondaki FK oranının %30’a kadar yükselmesinin yem değerlendirme sayısını (YDS) ve protein değerlendirme randımanını (PDR) etkilemediği saptanmıştır. En düşük CAA, SBO ve PDR %45 oranında FK içeren yemle beslenen balıklardan elde edilmiştir. Protein (%90,93-91,76) ve yağın (%96,78-98,33) sindirilme oranları yüksek oranda bulunmuş ancak gruplar arasında önemli bir fark bulunmamıştır (P>0,05). Kuru madde sindirim oranı ise yemlerdeki FK’nın artışına bağlı olarak azalmıştır. Bu sonuçlar, Gökkuşağı alabalığı yavrularının yemlerinde FK’nın büyüme performansı üzerinde olumsuz bir etki yapmaksızın %15 oranına kadar kullanılabileceğini göstermektedir.

Anahtar Kelimeler:

sindirilebilirlik, yem bileşimi tablosu, balık beslenmesi, yemden yararlanma, metabolize olabilir enerji, besin değeri, gökkuşağı alabalığı, büyüme performansı

Fındık küspesi seviyelerinin Gökkuşağı alabalığı yavrularında (Oncorhynchus mykiss) büyüme performansı, yemden yararlanma ve sindirilebilirlik üzerine etkileri

In this study, the effects of hazelnut meal (HM) levels in juvenile rainbow trout (Oncorhynchus mykiss) diets on growth, feed consumption, and digestibility were investigated. Four experimental diets containing a gradient of HM (0%, 15%, 30% and 45% respectively) were prepared to feed two replicate groups of trout (initial body weight of 37.89±0.02 g) twice daily to apparent satiation for 60 days. The highest weight gain rate (WGR) and specific growth rate (SGR) were obtained from the fish fed with Diet 1 and Diet 2 and it was determined that the increase of HM level in the diet up to 30% did not affect feed conversion ratio (FCR) and protein efficiency ratio (PER). The lowest WGR, SGR and PER were obtained from the fish fed with the diet containing 45% HM. The apparent digestibility coefficients (ADC) of protein (90.93-91.76%) and lipid (96.78- 98.33%) were at high with no significant difference among treatment (P>0.05). The ADC of dry matter decreased with increasing HM in diets. These results indicated that HM can be utilized by 15% in diet for juvenil rainbow trout, without adverse effect on growth performance.

Keywords:

digestibility, feed composition tables, fish feeding, feed conversion efficiency, metabolizable energy, nutritive value, rainbow trout, growth performance,

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Altop, A. 2006. Possibilities of using hazelnut kernel meal supplemented with synthetic threonine in japanese quail. MSc thesis. Samsun: University of Ondokuz Mayis, Institute of Sciences, 45 pp. (in Turkish).
AOAC (Association of Official Analytical Chemists) 1984. Official Methods of Analysis, 14th ed., AOAC, Washington, DC.
Akkılıç, M., Ergün, A. and Erdinç, H. 1982. Utilizing of substition soybean meal with hazelnut oil cake in broiler diets. Ankara University, The Journal of Veterinary Faculty, 29(3-4): 369-378.
Bilgin, O., Türker, A. and Tekinay, A.A. 2007. The use of hazelnut meal as a substitute for soybean meal in diets for rainbow trout (Oncorhynchus mykiss). Turkısh Journal of Veterinary and Animal Sciences, 31: 145- 151.
Çakmak, M.N. and Özdemir, Y. 2002. Investigation of the effects of diets containing different levels of corn gluten on growth and digestibility in rainbow trout (Oncorhynchus mykiss) with external and ınternal markers. University of Fırat, The Journal of Science and Engineering, 14(1): 207-215.
Cheng, Z.J. and Hardy, R.W. 2002. Apparent digestibility coefficients and nutritional value of cottonseed meal for rainbow trout (Oncorhynchus mykiss). Aquaculture, 212: 361-372.
Cho, C.Y. and Kaushik, S.J. 1985. Eject of protein intake on metabolizable and net energy values of fish diets. In: C.B. Cowey, A.M. Mackie and J.G. Bell (Eds.), Nutrition and Feeding in Fish Academic Press, London: 95-117.
Erener, G. 1991. The possibilities of hazelnut oil cake in laying hen diets. MSc thesis. Samsun: University of Ondokuz Mayis, Institute of Sciences, 46 pp. (in Turkish).
Furukawa, A. and Tsukahara, H. 1966. On the acid digestion method for the determination of chromic oxide as an index substance in the study of digestibility of fish feed. Bullutein of The Japanese Society of Scientific Fisheries, 32: 502-506.
Gomes, E.F., Rema, P. and Kaushik, S.J. 1995. Replacament of fish meal by plant proteins in the diet of rainbow trout (Oncorhynchus mykiss): digestibility and growth performance. Aquaculture, 130: 177-186.
Hardy, R.W. and Tacon, A.G.J. 2002. Fish meal historical uses, production trends and future outlook for sustainable supplies. In: R.R. Stickney (Ed.), Sustainable Aquaculture, New York: 311-325.
Hughes, S.G. 1991. Use of lupin flour as a replacement for full-fat soy in diets for rainbow trout (Oncorhynchus mykiss). Aquaculture, 93: 57–62.
Karaali, B. 2005. The effect of isonitrogenic diets of different protein sources and different energy levels on growth, chemical composition and total nitrogen excretion on turbot (Scophthalmus maoeticus). PhD. thesis. Samsun: University of Ondokuz Mayis, Institute of Sciences, 80 pp. (in Turkish).
Luo, L., Xue, M., Wu, X., Cai, X., Cao, H. and Liang, Y. 2006. Partial or total replacement of fishmeal by solvent-extracted cottonseed meal in diets for juvenile rainbow trout (Oncorhynchus mykiss). Aquaculture Nutrition, 12: 418–424.
Morales, A.E., Gardenete, G., Higuera, M. and Sanz, A. 1994. Effects of dietary protein source on growth, feed conversation and energy utilization in rainbow trout, Oncorhynchus mykiss. Aquaculture, 124: 117- 126.
Moyano, F.J., Gardenete, G. and Higuera, M. 1992. Nutritive Value of Diets Containing a High Percentage of Vegetable Proteins for Trout, Oncorhynchus mykiss. Aquat. Living Resour., 5: 23- 29.
Özer, A. 2002. The effects of substition soybean meal with hazelnut meal on growth and egg production in broiler chieks. Msc thesis. Samsun: University of Ondokuz Mayis, Institute of Sciences, 34 pp. (in Turkish).
Öztürk, A. and Atay, D. 1977. The possibilities of using cotton seed meal and sunfower seed meal or in combination in place of fish meal in rainbow trout diets. VI. Science Congress of TÜBİTAK. The Group of Veterinariy and Animal Sciences, Ankara. (in Turkish).
Pongmaneerat, J. and Watanabe, T. 1992. Utilization of soybean meal as protein source in diets for rainbow trout. Nippon Suisan Gakkaishi, 58: 1983–1990.
Sanz, A., Morales, A.E., Higuera, M. and Cardenete, G. 1994. Sunflower meal compared with soybean meal as substitutes for fish meal in rainbow trout (Oncorhynchus mykiss) diets: protein and energy utilization. Aquaculture, 128: 287-300.
Sarıçiçek, B.Z., Sarıca, M. and Erener, G. 1995. The effects of different plant protein sources on produce of broiler. Yutav, International Poultry Conference, 24- 27 May, Istanbul. (in Turkish).
Tacon, A.G.J., Webster, J.L. and Martinez, C.A. 1984. Use of solvent extracted sunflower seed meal in complete diets for fingerling rainbow trout (Salmo gairdneri Richardson). Aquaculture, 43: 381-389.
Thiessen, D.L., Campbell, G.L. and Tyler, R.T. 2003a. Utilization of thin distillers’ solubles as a palatability enhancer in rainbow trout (Oncorhynchus mykiss) diets containing canola meal or air-classified pea protein. Aquaculture Nutrition, 9: 1-10.
Thiessen, D.L., Campbell, G.L. and Adelizi, P.D. 2003b. Digestibility and growth performance of juvenile rainbow trout (Oncorhynchus mykiss) fed with pea and canola products. Aquaculture Nutrition, 9: 67–75.
Uyan, O. 2004. Effects of feeding frequency, dietary protein level and fish size on growth, body composition, nutrient digestibility and nitrogen utlization of Japanese flounder (Paralichthys olivaceus). PhD. thesis. Samsun: University of Ondokuz Mayis, Institute of Sciences, 80 pp. (in Turkish)
Yiğit, M. and Ustaoğlu, S. 2003. The importance of total and nutrient digestibility. E.U. Journal of Fisheries & Aquatic Scienses, 20: 287–294. (in Turkish)