Recovery of E. coli From Liver and Spleen of Broiler Birds and the Effects of Induced High Ammonia Level on Haematobiochemical Parameters and Its Amelioration by Different Modifiers.

The poultry sector is one of the most vibrant segments of the agriculture industry of Pakistan. In addition to different infections, ammonia (NH 3 ) production from litter material of broiler is the most harmful pollutant and causes serious threats for the environment. To overcome this problem, different methods are proposed assuring poultry bird's health and production. This study was carried out to evaluate the effect of toxic levels of NH 3 on the haematology and serum proteins of broiler birds and its amelioration by using different modifiers. The recovery of Escherichia coli ( E. coli ) from liver and spleen of broiler birds was also carried out. A total of 100 birds were divided into 5 separate groups (groups A-D). The groups C, D and E were treated with potassium aluminium sulphate, aluminium silicate and Yucca schidigera plant extract, respectively. Blood and tissue samples were collected after slaughtering the birds at 42 days of age. This study revealed increased RBC, total leucocyte count, Hb and heterophils percentage. Serum proteins were decreased in Yucca-treated and potassium aluminium sulphate-treated groups. This study concluded that NH 3 production was reduced by the application of different modifiers, and these modifiers also neutralized the changes in blood parameters induced by NH 3 .