Abd-Alrazaak, A.H. 2011. Study the effect of some immunological aspects on Newzealand Rabbits drenched with different concentrations of copper sulfate and zinc. Kufa Journal For Veterinary Medical Sciences. 2, 1 (Jun. 2011), 47–53. DOI:https://doi.org/10.36326/kjvs/2011/v2i14036.