Morphostructural and micrometric aspects of digestive tube in culture cyprinid species
2011
Dumitru, G., Universitatea Alexandru Ioan Cuza, Iasi (Romania) | Ciornea, E. | Misaila, C.
The researches had advanced the study of some morphostructurals and micrometrics aspects at the level of different regions of digestive tube (anterior post-oesophagus intestine, anterior distal intestine, medium and posterior intestine), as correlated with both age and main type of food for the species under study. To effectuate the study were sacrificed each five individuals of bighead carp (Aristichthys nobilis) and silver carp (Hypophthalmichthys molitrix) of different ages (one summer- old, and, respectively, four summer-old), the fragments of epithelial tissues being then processed through histological technique methods. Morphologically, it was observed that both on bighead carp and on silver carp, because of stomach default, the oespohagus is too short and goes directly into the intestine being difficult to delimitate them, being presented as a short tube, extensible, who’s walls are made of striated muscles. Whereas the oespohagus is a segment of passing it wasn’t taken into account in our histological researches. On the base of the observations made at the microscope, can be affirmed that, in general, there are little structural differences at the digestive tube level in the segments taken into study, those consisting in the first place in the much more numerous presence of lymphoidal infiltrations and lymphatic nodules at the bighead carp 000000000000000000000e silver carp.
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