TY - JOUR T1 - Changes in Some Growth Parameters of Mirror Carp (Cyprinus carpio) Reared with Pekin Duck in a Polyculture System AU - , Ekrem Lacin AU - , Olcay Hisar AU - , Abdulkadir Bayir AU - , Sukriye Aras Hisar JO - Journal of Fisheries International VL - 2 IS - 1 SP - 1 EP - 3 PY - 2007 DA - 2001/08/19 SN - 1817-3381 DO - jfish.2007.1.3 UR - https://makhillpublications.co/view-article.php?doi=jfish.2007.1.3 KW - Polyculture KW -mirror carp KW -duck KW -weight gain KW -G6PD enzyme KW -thyroid hormones AB - In this study, the effects of polyculture on growth parameters such as weight gain, Glucose-6-Phosphate Dehydrogenase (G6PD) enzyme activities and plasma thyroid hormones levels of mirror carp (Cyprinus carpio) were tested during the two month. Monocultures of fish were included as controls. Although, initial values of the growth parameters were not significantly different (p>0.05); specific grow rates, plasma levels of T3 hormone, G6PD enzyme activities except T4 rose with time in both treatment and they were also different between the treatments (p<0.05). In conclusion, it was determined that a significant effect of polyculture on the growth of mirror carp. ER -