Published in Scientific Papers. Series D. Animal Science, Vol. LXVIII, Issue 1
Written by Tudor PĂPUC, Daniel COCAN, Radu CONSTANTINESCU, Camelia RĂDUCU, Călin LAȚIU, Paul UIUIU, George-Cătălin MUNTEAN, Andrada IHUȚ, Daniela LADOȘI, Ioan LADOȘI, Anca BECZE, Vioara MIREȘAN
The use of phytoadditives in animal feeds has been gaining more attention due to their positive effects on growth and health of animals. This study aimed to determine the effects of adding natural phytoadditives to the diet of rainbow trout on its blood parameters during the cold season. One control and three experimental groups consisting of 50 adult rainbow trout each were fed a standard feed and three experimental diets consisting of the standard feed with 2% carrot, tomato, and spinach powders, respectively, for 90 days. Blood parameters were determined. Most parameters changed significantly (p<0.05) from the start to the end of the experiment. There were few significant changes among the control and experimental groups at the end of the experiment. Cholesterol and triglycerides increased in the control and experimental group with 2% carrot powder. Some minerals showed different (p<0.05) values in the experimental groups (Na, K, and Ca). The study shows that the incorporation of phytoadditives in rainbow trout feed does not produce negative effects on the blood parameters, with some advantages being present, such as a generally better mineral profile of the plasma and the stabilization of hematological parameters.
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