+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Individual variation in protein turnover and growth efficiency in rainbow trout, Oncorhynchus mykiss (Walbaum)

Individual variation in protein turnover and growth efficiency in rainbow trout, Oncorhynchus mykiss (Walbaum)

Proceedings of the Royal Society of London Series B Biological Sciences 257(1349): 141-147

The aims of this study were to examine the relation between consumption, growth and protein synthesis for individual rainbow trout held in groups, and to examine how differences in protein turnover may help to explain the observed differences in protein growth rate between rainbow trout with similar protein consumption rates. Therefore four measurements of consumption were made for 37 individual fish over a 73 day period by using radiography. At the end of the experiment, fractional rates of protein synthesis were measured by using a single flooding dose injection of (3H)phenylalanine. The results showed that fractional rates of protein growth and synthesis increased with consumption rate. However, degradation rates were independent of consumption. Fish consuming similar amounts of food exhibited two- to threefold differences in fractional protein growth rates, and twofold differences in fractional rates of protein synthesis. Nine pairs of fish with similar protein consumption rates but different rates of protein growth were selected to examine if differences in protein metabolism, digestive efficiency or RNA concentration or activity could explain these observed differences in protein growth efficiency. More efficient fish were found to have reduced degradation rates: this was the only significant result obtained. The results support the hypothesis that individual differences in protein turnover are important determinants of growth efficiency in fish.

(PDF emailed within 0-6 h: $19.90)

Accession: 008854284

Download citation: RISBibTeXText

DOI: 10.1098/rspb.1994.0107

Related references

Feed consumption, growth and growth efficiency of rainbow trout (Oncorhynchus mykiss (Walbaum)) fed on diets containing a bacterial single-cell protein. British Journal of Nutrition 73(4): 591-603, 1995

Individual variation in progeny size and quality in rainbow trout, Oncorhynchus mykiss (Walbaum). Aquaculture Research 27(5): 335-343, 1996

Paternal variation in juvenile survival and growth of the triploid hybrid between female rainbow trout (Oncorhynchus mykiss Walbaum) and male brown trout (Salmo trutta L.). Aquaculture Research 34(3): 205-210, 2003

Karyotype variation in the albino rainbow trout (Oncorhynchus mykiss (Walbaum)). Genome 52(4): 347-352, 2009

Examinations of rainbow trout Oncorhynchus mykiss Walbaum, 1792 with using ultrasonography Ultrasonografi ile Gokkusagi Alabaliginin Oncorhynchus mykiss Walbaum, 1792 incelenmesi. Su Urunleri Dergisi, 201-2: 211-216, 2003

Effect of β-Mannanase and α-Galactosidase Supplementation to Soybean Meal Based Diets on Growth, Feed Efficiency and Nutrient Digestibility of Rainbow Trout, Oncorhynchus mykiss (Walbaum). Asian-Australasian Journal of Animal Sciences 27(5): 700-705, 2014

A comparative tissue distribution study of oxytetracycline in rainbow trout, Oncorhynchus mykiss (Walbaum), and chinook salmon, Oncorhynchus tshawytscha (Walbaum). Aquaculture Research 30(4): 279-286, 1999

Effect of enzyme supplementation to dehulled lupin-based diets on growth, feed efficiency, nutrient digestibility and carcass composition of rainbow trout, Oncorhynchus mykiss (Walbaum). Aquaculture research 38(12): 1274-1282, 2007

Effects of the repartitioning agent ractopamine on the growth and body composition of rainbow trout Oncorhynchus mykiss (Walbaum), fed three levels of dietary protein. Aquaculture research 29(9): 687-694, 1998

First isolation of Piscirickettsia salmonis from coho salmon, Oncorhynchus kisutch (Walbaum), and rainbow trout, Oncorhynchus mykiss (Walbaum), during the freshwater stage of their life cycle. Journal of Fish Diseases 18(3): 277-279, 1995

Circadian rhythms and individual variability of self-feeding activity in groups of rainbow trout Oncorhynchus mykiss (Walbaum). Aquaculture Research 33(7): 491-500, 2002

Genetic variation measured by microsatellites among three strains of domesticated rainbow trout (Oncorhynchus mykiss, Walbaum). Aquaculture Research 35(1): 40-48, 2004

Growth and protein turnover during acclimation to acid and aluminum in juvenile rainbow trout (Oncorhynchus mykiss). Canadian Journal of Fisheries and Aquatic Sciences 53(4): 802-811, 1996

Replacement of fish meal by potato protein concentrate in diets for rainbow trout, Oncorhynchus mykiss (Walbaum): growth, feed utilization and body composition. Aquaculture Nutrition 3(1): 65-69, 1997

Relationships between growth and disease resistance in rainbow trout, Oncorhynchus mykiss (Walbaum). Journal of Fish Diseases 33(4): 321-329, 2010