USE OF DIFFERENT LEVELS AND SOURCES OF LIPIDS IN THE FEEDING OF CATFISH Rhamdia quelen FINGERLINGS
Abstract
The experiment evaluated the effects of three lipid sources (pork fat, soybean oil, and canola oil) and two leveis of inclusion (5 and 10%) in dry diets prepared with raw chicken liver and molasse yeast on jundia (catfish) fíngerlings feeding. A completely randomized experimental design with a 3 x 2 fatorial arrangement was used with 6 treatments and 4 replications. Data were submitted to variance analysis and test F at 5 % levei of significance, and means were compared through Tukey's test. The estimated parameters were: average weight, daily average gain, survival, condition factor, growth, body composition, fat and protein deposition in the carcass and fat and protein deposition rate in the carcass. Only the body cdmposition and the fat and protein deposition in the carcass showed correlation. among the tested .sources and leveis (P<0.05). The conclusion was that the tested lipid sources and leveis cause variation in the body composition of south american catfish (Rhamdia quelen).
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