Utilization of domestic plant components in diets for common carp Cyprinus carpio L.
2009
Mazurkiewicz, J.,Poznan University of Life Sciences, Poznan (Poland). Dept. of Inland Fisheries and Aquaculture
The possibilities of substituting domestic plant protein ingredients for fish meal in complete diets in rearing different age/size groups of carp, Cyprinus carpio L. were determined. The mixture of legume seeds and extracted rapeseed meal used in the studies can partially replace fish meal in complete diets for carp, while the effective level of fish meal replacement was varied and depended on the carp age/size group. Analyses were performed on the dependence between the share of plant protein in the dietary protein of the individual diets and the mean individual weight of carp and the values of the feed conversion ratio. This provided the basis for the conclusion that plant protein can comprise from 30-35 percent of the total protein pool in the diets of carp early juveniles and juveniles, while the maximum allowable share in the diets of two-year old and market carp is 45 percent. The experimental diet used in the feeding of market carp did not have an impact on the sensory properties of the fish meat
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