Effect of Different Levels of Coriandrum Sativum and Piper Nigrum and their Interaction on Production, Biochemical Parameter, Liver Enzymes, TSH and Growth Hormone for Broiler Chickens

This study was conducted in Agri. Faculty field, University of Sumer De-Qar province for period from 10 th of April 2019 to 14 th of May 2019, they had fed 35 days. The objective of this study was to evaluate the effective of watery extraction of Coriander and Black pepper to (80) chickens, one day old, Strain Rose 308, unsexed birds and breed in four cages of batteries. This experiment was divided into four groups, three treatments with different levels and the fourth as a control. The results showed a significant increase of weekly body weight (BW), as well the treatments were improving feed consumption P <0.05, furthermore there is increase in feed conversion ratio with significant result P<0.05. The study reported about biochemical parameters, It showed that a significant decrease in cholesterol and triglyceride (T.G.) P<0.05 incompared with the control and no significant difference with total protein. Liver enzymes activity after use medicinal herbs and spice for broiler chicks were recorded a significant reduction in GOT and GPT and no Significant effect on ALP, P<0.05. As well as the herbs and spice gave increase in growth hormone maybe that herbs contain mineral and vitamins which increased growth hormones P<0.05 the efficient of growth hormone (somatotrophin) was increase protein retention and glycogen deposited in the muscles, as well increase in TSH hormone that gave significant result P<0.05. Increased of TSH hormone secrete from pituitary gland and causes elevated in T₃,T₄ and increased the metabolism. The result indicated that there is significant differences between treatments for Immunological test of N.D. P<0.05 when compared with a control and no significant differences for I.B. test. It is concluded the extraction enhanced the performance and health situation with improvement antibody titer against N.D. but the medicinal herbs did not effect on infection bronchitis (IB) disease as well all the chickens were vaccinated with N.D. and No vaccine with IB.