APPARENT DIGESTIBILITY COEFFICIENT OF PROTEIN-SOURCES FOR CARP, CYPRINUS-CARPIO L

The digestibility of various diet components as protein sources for co mmon carp, Cyprinus carpio L., at 500-800 g was studied by using an in ert marker in the feed and collecting the faeces by stripping, Protein in fish meal (83.8%) and soybean meal (69.8%) were significantly more digestible than that of poultry meal (47.2%). Energy digestibility te sts gave the following results: fish meal 93.4%, soybean meal 74.7% an d poultry meal 63.9%, It was evident that the ability of carp to diges t proteins is very high, and that they can utilize proteins as the mai n component of their diet.