Effect of Ascaridia galli infection in some blood parameters in layer hens

The study was conducted to investigate the effects of Ascaridia galli in some haematological parameters include, packed cell volume% (P.C.V), Haemoglobin concentration (Hb), total white blood count and differential WBCs count in layer hens by using 75 white lohmann’s chicken were randomly divided into 3 groups (25 chicken for each group). The 1st and 2nd groups were infected with 1500 and 250 viable egg/ bird orally respectively, while the 3rd were act as negative control groups (0.1 ml/bird normal saline/ orally). The results of blood examination showed that Packed cell volume% (P.C.V) and haemoglobin (Hb) percentage decreased significant in infected groups, The total leucocytic count and differential WBCs count showed significantly increased in all infected groups.