An experiment was conducted to investigate the effects of using different levels of
Ginger rhizome powder (GRP) and Turmeric rhizome powder (TRP) on production
performance and some blood metabolites in laying hens. Ninety 103-week old laying hens
were divided into 5 treatments in a completely randomized design with 3 replicates and 6
birds in each cage. The birds were fed a corn-soybean meal based diet containing
different concentrations of GRP (1 and 3%) and TRP (1 and 3%) and control (0 %).
During 9 weeks of experimental period, the data of production parameters were collected.
Some blood serum metabolites including, total cholesterol, glucose, uric acid, Alanine
aminotransferase (ALT) and Aspartate aminotransferase (AST), Calcium (Ca) and
Phosphorous (P) were measured. Results indicated that the inclusion of GRP into the
diets increased egg production percent, egg mass, feed intake whereas it decreased serum
total cholesterol, AST and ALT significantly (P