11 research outputs found
On Correlation Between the Complement Titer, Proteolytic Activity and Protein Quantity in the Carp Blood Serum
Dynamics of Activity of Hydrolases, Level of Protein and Titer of Lectine in Trout Embryo Under Effect of Pathogenic Fungi
Adsorption and Desorption of Cation Surface-active Substances by the "Aerosil" Preparation and its Influence on Immuno-physiological Indices in Carp Blood
Forming of Relations between Parasites and Their Hosts in Anthropogenically Modified Hydrobiocenoses
The use of Akwa-Biot-Norm biogenic feed additive in the cultivation of Lena sturgeon (Acipenser baeri, Brandt)
Ultrastructural studies on intestinal response of carp, Cyprinus carpio L., to the pseudophyllidean tapeworm, Bothriocephalus acheilognathi Yamaguti, 1934
Efectos del parasitismo sobre el tejido branquial en peces cultivados: estudio parasitologico e histopatologico Effect of the parasitism on the gill tissue of cultivated fishes: parasitological and histopathological studies
<abstract language="eng">One hundred four out of 225 diagnosticated cases were myxosporidian, monogenean, Ichthyophthirius multifiliis Fouquet, 1876 and bacterial diseases in Piaractus mesopotamicus Holmberg, 1887 (pacu), Colossoma macropomum Cuvier, 1818 (tambaqui) and tambacu, at Aquaculture Center, Universidade Estadual Paulista (UNESP), Jaboticabal, São Paulo, Brazil, between 1992 and 1995. The gills were fixed in 10% buffered formalin solution to posterior histologic routine. It was observed Henneguya sp. cysts into the capillaries of the secondary lamellae, encapsulated by the respiratory epithelium cells. It provoked adherence of the adjacent lamellae, hyperplasia, congestion, oedema and epithelium displacement. Monogeneans infestations by Anacanthorus penilabiatus Boeger, Husak & Martins, 1995 and Ancyrocephalinae sub-family caused light inflammatory reaction and hyperplasia. In severe infestations was observed hyperplasia of primary lamellae, necrosis, oedema, respiratory epithelium displacement, ruptured pillar cells and telangiectasis. Response to I. multifiliis was limited to surrounding epithelial cells in young fishes and hyperplasia, necrosis, inflammatory infiltrate and oedema in old fishes. Such lesions iniciate hyperplasic and oedematous process that with inflammation of the parasitic sites, provoked alterations over gases and ions interchange surface and consequently fish metabolism