Al-Ani L, Al-Rawi A. Factors effecting dairy performance in Friesian and Friesian X Iraqi crosses. : Milk yield and lactation period. MJSc [Internet]. 1996 Dec. 31 [cited 2024 May 19];3(1):63-77. Available from: https://omu.edu.ly/journals/index.php/mjsc/article/view/493