Morphometrical study of intestinal folds of carp fed different added feed in semiintensive system
2011
Rašković, B., Faculty of Agriculture, Belgrade - Zemun (Serbia) | Ćirić, M., Faculty of Agriculture, Belgrade - Zemun (Serbia) | Dulić, Z., Faculty of Agriculture, Belgrade - Zemun (Serbia) | Grubišić, M., Faculty of Agriculture, Belgrade - Zemun (Serbia) | Spasić, M., Faculty of Agriculture, Belgrade - Zemun (Serbia) | Koko, V., Faculty of Biology, Belgrade (Serbia) | Poleksić, V., Faculty of Agriculture, Belgrade - Zemun (Serbia)
The aim of the present study was to evaluate effects of different added feed on intestinal folds (mixture of cereals, pelleted, and extruded feed) using morphometry. Intestinal fold length of carp grown in a semiintensive production system was correlated with carp growth rate. The experiment was performed in three earthen ponds, surface of 650 square meter each, placed side by side at the experimental fish farm of the Center for Fishery and Applied Hydrobiology, Faculty of Agriculture, University of Belgrade, Serbia. 400 common carps (Cyprinus carpio L.) were placed in each pond. The results are the following: Intestinal fold length had a rather regular growth in the three ponds studied (Fig. 1). Fish fed cereals as added feed had the shortest folds. In all three ponds a fall in intestinal fold length occurred in June. In June fold length was even shorter than at experiment start in April and in May. Intestinal folds length constantly increased from June onward in all ponds, regardless of feed used. The results have shown high correlation level between carp body mass and intestinal fold length in all ponds (Tab. 2). Correlation between fold length and body mass in each pond is given in Tab.2: it was 0.82 in the pond PF, 0.83 in GF, and 0.86 in EF. As it can be seen from the table all correlations obtained were statistically significant. Our study has shown that monitoring carp histology during the production season can give insight into the digestion process, its efficiency in the semiintensive system depending on the part of the season /development of natural food, and of the type of added feed.
Show more [+] Less [-]AGROVOC Keywords
Bibliographic information
This bibliographic record has been provided by Matica Srpska Library