Incorporation of potato protein concentrate in diets for rainbow trout: effect on feed intake, growth and feed utilization

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Abstract

Five isonitrogenous and isoenergetic diets were composed to investigate the effects of incorporation of potato protein concentrate (PPC) in the diet of rainbow trout, Oncorhynchus mykiss (Walbaum), on feeding rate, growth, feed utilization and body composition. The experimental diets contained 0, 22, 56, 89 and 111 g kg-1 PPC, respectively. A 4-week trial was conducted at about 12°C. The results showed that with increased incorporation levels of PPC, feeding rate, growth and feed efficiency decreased significantly. Incorporation of PPC in the diets significantly decreased the dry matter content and fat content of fish body, while protein and ash contents increased.
Original languageEnglish
JournalAquaculture Nutrition
Volume3
Issue number4
Pages (from-to)223-226
ISSN1353-5773
Publication statusPublished - 1997
Externally publishedYes

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