فهرس المقالات calving difficulty حرية الوصول المقاله صفحة الملخص نص كامل 1 - The Application of Recursive Mixed Models for Estimating Genetic and Phenotypic Relationships between Calving Difficulty and Lactation Curve Traits in Iranian Holsteins: A Comparison with Standard Mixed Models م.س. مختاری م. مرادی شهربابک ا. نجاتی جوارمی گ.جی.ام روزا
