The effects of induced ascites with salt on growth curve parameters and ascites-related traits in broiler chickens.

The aim of present study was to investigate different aspects of growth by using the growth curve in a paternal line of broiler chicken. In this study 299 male birds from the parental lines (A & B) of Arian strain broiler chicken were used to investigate the growth curve under two treatments of control and ascites. At 35 days of age، the blood parameters and hematocrit value were measured just on 15% of birds. Food conversion ratio between 23 and 54 days of age were studied on 20% of birds individually. The body weights were measured individually at 1، 4، 7، 10، 14، 17، 21، 28، 35، 42، 49 and 54 days of age. Moreover at the end of experiment، all the birds were slaughtered and then the right ventricle to total ventricle ratio was assayed. There was significant differences (P<0. 05) for oxygen saturation between two treatments in the paternal lines but no significant difference was observed food conversion ratio between the treatment in parental line (P>0. 05). The ratio of right ventricle to total ventricle of the birds with induced ascites was significantly (P<0. 05) in both lines. Furthermore the results of current study showed that there was significant differences (P<0. 05) between two treatment for mature index and age at in inflection point just in line A. indeed، mature index increased and age at in inflection point decreased in ascites treatment.