Effects of Black Seed (Nigella sativa L.) Supplementation on Feed Efficiency, Egg Yield Parameters and Shell Quality in Chickens

Rahim Aydin, Mehmet Ali Bal, Ali Kemali Ozugur, Hasan Huseyin Cemali Toprak, Adem Kamalak and Mesut Karaman

Pakistan Journal of Biological Sciences 9 ( 2 ): 243 - 247 , 2006