M. Ayçe GENÇ, Nazmi TEKELİOĞLU, Yasemen YANAR, Tülay ALTUN, Oğuz TAŞBOZAN

Levrek (Dicentrarchus labrax) karma yemine farklı oranlarda eklenen L-Glutamik asit ve DL-Alaninin genç levreklerin gelişimi üzerine etkileri

Bu çalışmada levrek (Dicentrarchus labrax) karma yemine farklı oranlarda (% l ve % 2) eklenen L-glutamik asit ve DL-alaninin genç levreklerin gelişimi üzerine etkileri araştırılmıştır. Araştırma sonucunda % l oranında L-glutamik asit ve DL-alanin içeren yemlerle beslenen levreklerde kontrol yemi ile beslenen balıklara göre (47,59±1,83 g) daha yüksek (sırasıyla 54,23±1,51 g ve 55,03±1,69 g) canlı ağırlık artışı olduğu saptanmıştır (p

Effects of different levels of DL-Alanin and L-Flutamic acid Supplemented diets on the growth of sea bass (Dicentrarchus labrax) Juveniles

In this study, the effects of food supplemented with different levels of DL-alanin and L-glutamic acid (1% and 2%) on the growth of sea bass juveniles were investigated. Fish fed with L-glutamic acid (1% of diet) and DL-alanin (1% of diet) supplemented diets had greater weight gains (54.23 ±1.51 g and 55.03 ± 1.69 g, respectively) than those fed with a control diet (47.59 ± 1.83 g) (p < 0.05). It was found that the groups fed with 1% of attractant-supplemented diets had better food conversion ratios (1.11 and 1.13, respectively) than the control group ( 1.22) (p < 0.05). It was also found that the wet weight gain and food conversion ratios of the groups fed with 2% L-glutamic acid and DL-alanine were similar to those fed with the control diet and 1 % attractant- supplemented diets (p > 0.05).

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1. Deniz, H., Korkut, A.Y., Tekelioğlu, N.: Developments in the Turkish Marine Aquaculture- Sector. Mediterranean Offshore Mariculture. CIHEAM Network on Technology of Aquaculture in the Mediterranean. Zaragoza, SPAIN, 2000, 71-79.
2. Mackie, A.M., Mitchell, A.I.: Identification of Gustatory Feeding Stimulants for Fish Applications in Aquaculture. In: Cowey, C.B., Mackie A.M., Bell J.G. (Editors), Nutrition and Feeding in Fish. Academic Press, Toronto, 1985, 177-189.
3. Kolkovski, S., Czesny, S., Dabrowski, K.: Use of Krill Hydrolysate as a Feed Attractant for Fish Larvae and Juveniles. J. World Aquacul. Soc, 2000; 31: 81 -88
4. Polat, A., Beklevik, G.: The Importance of Betaine and Some Attractive Substances as Fish Feed Additives. Feed Manufacturing in the Mediterranean Region. CIHEAM Zaragoza-SPAIN, 1998.
5. Adron, J.W., Mackie, A.M.: Studies on the Chemical Nature of Feeding Stimulants for Rainbow Trout, J. Fish Biol., 1978; 12: 303-310.
6. Mackie, A.M., Mitchell, A.I.: Chemical Ecology and Chemoreception in the Marine Environment. In Indices Biochimiques et Milieun Marine, Actual Biochimie Marine, 1982; 5: 11-24.
7. Mackie, A.M., Mitchell, A.I.: Studies on the Chemical Nature of Feeding Stimulants for the Juvenile European Eel, Anguilla anguilla (L). J. Fish. Biol., 1983; 22: 425-430.
8. Adams, M.A., Jonsen, P.B., Hong-Qi, Z.: Chemical Enhancement of Feeding for the Herbivorous Fish Tilapia zillii. Aquaculture, 1988; 72: 95-107.
9. Ishida, Y., Kobayashi, H.: Stimulatory Effectiveness of Aminn Acids on the Olfactory Response in an Algivorous Marine Teleost the Rabbit Fish Siganus fuscescens (Houttuyn). J. Fish Biol' 1992:41:737-748.
10. Borguez, A., Cerqueira, V.R.:' Feeding Behavior in Juvenile Snook Centropomus undecimalis, I. Individual Effect of Some Chemical Substances. Aquaculture, 1998; 169: 25-35.
11. Beklevik, G., Polat, A.: DL-AIanin ve Betain Katkılı Yemlerin Gökkuşağı Alabalığı {Onchorhynchus mykiss) Fingerliklerinin Büyüme ve Vücut Besin Madde Bileşenlerine Etkileri. Turk. J. Vet Anim. Sci., 2001; 25: 301-307.
12. Mattissek, R. Schnegel, F.M., Steiner, G.: Lebensmittel-Analytick. Springer Verlag, Berlin, Tokyo, 1988, 440 p.
13. Bligh, E.G., Dyer, W.J.: A Rapid Method of Total Lipid Extraction and Purification. Can. J. Biochem. Physiol., 1959; 37: 911-917.
14. Penaflorida, V.D., Virtanen, E.: Growth, Survival and Feed Conversion of Juvenile Shrimp (Penaeus monodon) Fed a Betaine/Amino Acid Additive. Israeli J. Aquacul.-Bamidgeh, 1996; 48: 3-9.
15. Can, K., Şener, E.: Betain İlave Edilen Başlangıç Yemlerinin Gökkuşağı Alabalığı (Onchorhynchus mykiss, W. 1972) Yavrularının Büyümesine Etkisi. İstanbul Üniv. Su Ürün. Derg., 1992; 6: 95-104.