The implications of various gene variant combinations on breeding values for Awassi ewe milk production.

Background And Aim: Milk production is an important factor to consider in selecting Awassi sheep. This trait is influenced by various genes that can be managed to boost production. The breeding values (BVs) for milk production in Jordan's Awassi sheep flocks have been established.

Single and combined effects of and -casein genes on Awassi sheep milk quantity and quality.

Background And Aim: Milk produced from Awassi sheep is of high nutritive value; its production is relatively low in Awassi sheep, so the genetic improvement programs targeted milk production and its components are of high importance, especially when using genes that have an important signal to milk traits. This study was aimed at assessing the influence of alpha S1 () and beta-casein () genes genotypes interaction on Awassi ewes milk productivity.

Materials And Methods: A total number of 391 milk yield and its composition records (taken through five consecutive years, 2007-2011) of 167 ewes were utilized for this study.

Relationships between 1 Calpastatin Gene Polymorphism, Growth Performance, and Meat Characteristics of Awassi Sheep.

Advances in molecular genetics have allowed the identification of genes that can enhance livestock production. The aim of this study was to investigate possible relationships between the calpastatin (CAST) 1 gene polymorphisms and growth performance, carcass characteristics, and meat quality in Awassi sheep. A total of 87 blood samples were collected from two-week-old Awassi ram lambs.