تأثير التجويع على بعض الإنزيمات في أسماك الكارب الشائع Cyprinus carpio L.

Abstract EN

The experiment was conducted using 48 fish, common carp Cyprinus carpio (average weight 41.51 + 3.51), The fish were distributed on 6 aquaria each one represents a starvation period and contain 8 individuals, after two weeks acclimatization on commercial diet to reduce individual differences in nutritional status, fish was exposed to starvation periods (2, 4, 6, 8, and 10 weeks), fish weighed and the concentration of Alkaline Phosphatase (ALP), Glutamic Oxaloacetic Transaminase (GOT), Glutamic Pyruvic Transaminase (GPT), Creatine Kinase (CK) and Lactate Dehydrogenase (LDH) enzymes in blood serum were analyzed.

Fish weight decreased noticeably as a result of consumption of some components of the body to sustain essential activities, as well as the fish showed a significant increase (P < 0.05) after two weeks of starvation in the concentration of all enzymes studied except for ALP enzyme, which indicates an increase in glyconeogenesis.

The significant (p < 0.05) increase in the concentration of enzymes was continued after four and six weeks of starvation.

The significant increase (P > 0.05) in the concentration of enzymes ALP, GPT and LDH was stopped during the last four weeks of the experiment.

While the significant increase (P < 0.05) in concentration of enzyme GOT and CK was continued even after eight weeks of starvation.