Usporedba histološke slike slezene i bubrega lubina (Dicentrarchus labrax L.) iz uzgoja i prirodne populacije

• Main Authors: KURTOVIĆ, Božidar, Laboratory for Aquaculture, Department for marine, environmental research, bkurtovi@irb.hr, TESKEREDŽIĆ, Emin, TESKEREDŽIĆ, Zlatica
• Format: Publication
• Language: English
• Published: Institute of Oceanography and Fisheries 01.12.2008
• Subjects: bubreg; histologija; histology; kidney; lubin; Sea bass; slezena; spleen; stres; stress

Svrha ovog rada bila je istražiti utjecaj intenzivnog uzgoja, na histološku sliku slezene i bubrega lubina. Istraživani su lubini iz intenzivnog uzgoja, uzgajani u kavezima i hranjeni industrijski proizvedenom kompletnom hranom, a kao kontrolna skupina poslužili su lubini iz prirodne populacije uzorkovani prilikom izlovljavanja ribe iz Tarske uvale, Istra. Istraživanje je bilo usmjereno na histološke promjene u slezeni i bubrezima. Rezultati histološke pretrage pokazali su da je prosječan broj MMC-a značajno povećan (p<0,05) u slezeni i bubregu riba iz uzgajane populacije. Promjene na glomerulima (atrofija i liza glomerularnog pleteža kapilara) bile su izraženije kod riba iz uzgoja, ali samo atrofija statistički značajno (p<0,05). Na bubrežnim kanalićima riba iz uzgajane populacije bile su izraženije nekrotične promjene, iako ne statistički značajno (p>0,05). Nije utvrđena razlika u učestalosti degenerativnih promjena i nakupljanju upalnih stanica. The aim of this study was to investigate the effect of intensive farming on spleen and kidney histology. The study was carried out on sea bass reared intensively in sea-cages and fed with complete commercial diets. The control group of sea bass was wild fish caught in Tarska Bay, Istria. The investigation was focused on histological changes in spleen and kidney. Microscopic evaluation revealed that the number of melanomacrophage centers (MMC) was significantly higher (p<0.5) in spleen and kidney tissues from farmed fish. Atrophy and lysis of glomerular tufts were more pronounced in the kidney of reared fish, but this difference was significant (p<0.5) only for atrophy. While necrotic lesions were more pronounced in the kidney tubules of reared fish, the degree of lesion development was not significant (p>0.5) compared to the control. There were no differences in the occurrence of degenerative and inflammatory lesions in the kidney.