Shabir Ahmed BHAT, Salman Rauoof CHALKOO, Qaiser Jahan SHAMMI

Nutrient utilization and food conversion of rainbow trout, onchorhynchus mykiss, subjected to mixed feeding schedules

Balıklar, vücut ağırlıklarının %5’i ve %1’i oranında kısıtlı yemleme ve doyana kadar yemleme olmak üzere 3 ayrı gruba ayrılarak bir çalışma yürütülmüştür. Son vücut ağırlığı açısından en iyi (P

Anahtar Kelimeler:

yem tüketimi, vücut ağırlığı, büyüme oranı, gökkuşağı alabalığı, yem çevirimi, besin maddesi yarayışlılığı, beslenme fizyolojisi

Karma yemleme yapılan gökkuşağı alabalığında, onchorhynchus mykiss besin kullanımı ve gıda dönüşümü

Fish were offered either restricted feeding (5% of body weight or 1% body weight as maintenance requirement) or appetite feeding subdivided into three equal feeds. The best (P<0.05) growth response in terms of final body weight, percent weight gain and specific growth rate (SGR) was observed for feeding schedule I (control), for fish fed to appetite throughout. Feeding schedule II showed significantly the highest (P<0.05) growth response in terms of final body weight, percent weight gain and specific growth rate (SGR) in comparison with other feeding schedules. Growth rate and food conversion efficiency (FCE) in feeding schedule II were markedly higher during phase II in comparison with phase I. Phase I (0-4 weeks) growth rate slightly increased in fish fed restricted ration throughout (T-II). In contrast, in phase II (4-8 weeks) fish were fed to appetite throughout (T-II) showed a rapid increase in fortnightly growth response and higher growth rates, feed consumption and FCE.

Keywords:

feed consumption, body weight, growth rate, rainbow trout, feed conversion, nutrient availability, nutrition physiology,

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Akiyama, D.M. 1991. The use of soy products and other plant protein supplements in aquaculture feeds. In: D.M. Akiyama and R.K.H. Tan (Eds.), Proceedings of the Aquaculture Feed Processing and Nutrition Workshop Held in Thailand and Indonesia, 19-25 Sept., American Soybean Association, Singapore: 199-206.
Bilton, H.T. and Robins, G.L. 1973. The effect of starvation and subsequent feeding on survival and growth of Fulton sockeye salmon fry, Oncorhynchus nerka. Journal of Fisheries Research Board of Canada, 30: 1-5.
Damsgaard, B., Arnesen, A.M., Baardvik, B.M. and Jobling, M. 1997. State-dependent feed acquisition among two strains of hatchery-reared Arctic charr. Journal of Fish Biology, 50 (4): 859-869.
De Silva, S.S. 1985. Performance of Orecchromis niloticus (L) fry maintained on mixed feeding schedule of different protein content. Aquaculture and Fisheries Management, 16: 335-340.
Dobson, S.H. and Holmes, R.M. 1984. Compensatory growth in the rainbow trout, Salmo gairdneri Richardson. Journal of Fish Biology, 25(6): 649-656.
Jobling, M., Jorgensen, E.H. and Siikavuopio, S.I. 1993. The influence of previous feeding regime on the compensatory growth response of maturing and immature Arctic charr, Salvelinus alpinus. Journal of Fish Biology, 43 (3): 409-419.
Jobling, M. and Koskela, J. (1996) Interindividual variations in feeding and growth in rainbow trout during restricted feeding and in a subsequent period of compensatory growth. Journal of Fish Biology, 49 (4): 658-667.
Jobling, M., Meloey, O.H., Santos, J. and Christiansen, B. 1994. The compensatory growth response of the Atlantic cod: Effects of nutritional history. Aquaculture International, 2 (2): 75-90.
Jones, G.P.D. and Farrell, D.J. 1992. Early-life food restriction of broiler chicken. I. Methods of application, amino acid supplementation and the age at which restrictioins should commence. British Poultry Science, 33: 579-587.
Kim, M.K. and Lovell, R.T. 1995. Effect of restricted feeding regimes on compensatory weight gain and body tissue changes in channel catfish, Ictalurus punctatus in ponds. Aquaculture, 135: 285-293.
Leeson, S., Summers, J.D. and Caston, L.J. 1991. Diet dilution and compensatory growth in broilers. Poultry Science, 70: 867-873.
McCarthy, I.D., Carter, C.G. and Houlihan, D.F. 1992. The effect of feeding hierarchy on individual variability in daily feeding of rainbow trout, Oncorhynchus mykiss (Walbaum). Journal of Fish Biology, 41(2): 257-263.
Miglavs, I. and Jobling, M. 1989a. Effects of feeding regime on food consumption, growth rates and tissue nucleic acids in juvenile Arctic charr, Salvelinus alpinus, with particular respect to compensatory growth. Journal of Fish Biology, 34(6): 947-957.
Miglavs, I. and Jobling, M. 1989b. The effects of feeding regime on proximate body composition and patterns of energy deposition in juvenile Arctic charr, Salvelinus alpinus. Journal of Fish Biology, 35(1): 1-11.
O'Donovan, P.B. 1984. Compensatory gain in cattle and sheep. Nutrition Abstracts and Reviews, 54B: 389-410.
Pantazis, P.A. and Jauncey, K. 1996. Nutritional studies in the African catfish, Clarias gariepinus (Burchell, 1882): A preliminary report. Bulletin of the Aquaculture Association of Canada, 3: 47-49.
Plavnik, I. and Hurwitz, S. 1985. The performance of broiler chicks during and following a severe food restriction at an early age. Poultry Science, 64: 348-355.
Qian, K., Cui, W., Xiong, B. and Yang, Y. 2000. Compensatory growth, feed utilization and activity in gibel carp following feed deprivation. Journal of Fish Biology, 56 : 228-232.
Quinton, J.C. and Blake, R.W. 1990. The effect of feed cycling and ration level on the compensatory growth response in rainbow trout, Oncorhynchus mykiss. Journal of Fish Biology, 37 (1): 33-41.
Rueda, F.M., Martinez, F.J., Zamora, S., Kentouri, M. and Divanach, P. 1998. Effect of fasting and refeeding on growth and body composition of red porgy, Pagrus pagrus L. Aquaculture Research, 29(6): 447-452.
Russell, N.R. and Wootton, R.J. 1992. Appetite and growth compensation in European minnow, Phoxinus phoxinus (Cyprinidae) following short period of food restriction. Environmental Biology of Fishes, 34: 277-285.
Saether, B.S. and Jobling, M. 1999. The effects of ration level on feed intake and growth, and compensatory growth after restricted feeding, in turbot, Scophthalmus maximus L. Aquaculture Research, 30(9): 647-653.
Summers, J.D., Sparatt, D. and Atkinson, J.L. 1990. Restricted feeding and compensatory growth for broilers. Poultry Science, 69: 1855-1861.
Weatherley, A.H. and Gill, H.S. 1981. Recovery growth following periods of restricted rations and starvation in rainbow trout, Salmo gairdneri Richardson. Journal of Fish Biology, 18 (2): 195-207.
Weatherley, A.H. and Gill, H.S. 1987. The Biology of Fish Growth. Academic Press, Boston, New York, Tokyo, Sydney, London, 443 pp.
Wieser, W., Krumschnabel, G. and Ojwang-Okwor, J.P. 1992. The energetics of starvation and growth after refeeding in juveniles of three cyprinid species. Environmental Biology of Fishes, 33 (1-2): 63-71.
Wilson, P.N. and Osbourn, D.F. 1960. Compensatory growth after undernutrition in mammals and birds. Biological Reviews, 37: 324-363.
Yu, M.W., Robinson, F.E., Clandinin, M.T. and Bodnar, L. 1990. Growth and body composition of broiler chikens in response to different regimes of feed restriction. Poultry Science, 69: 2074-2081.