Relationship between SCD۱ Gene Polymorphism and the Production and Composition of Milk in the Iraqi Awassi Sheep
محل انتشار: مجله آرشیو رازی، دوره: 78، شماره: 1
سال انتشار: 1402
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 40
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شناسه ملی سند علمی:
JR_ARCHRAZI-78-1_006
تاریخ نمایه سازی: 6 دی 1402
چکیده مقاله:
Selection based on genetic makeup became an important tool in genetic improvement. The development of molecular biology opened the way to study the genes of farm animals and genetically improve them. The aim of this study was to determine the Allele frequency and genotype distribution of the SCD۱ gene and its relationship to milk production and its main components from fat, protein, lactose and non-fat solids percentage in Iraqi Awassi sheep. Fifty-one female Awassi sheep were used in this study. The genotype distribution of the SCD۱ gene in the studied Awassi sheep sample was ۵۰.۹۸, ۴۱.۱۸ and ۷.۸۴% for each of the CC, CA and AA genotypes, and the discrepancy between these percentages were highly significant (P≤۰.۰۱), and the appearance of the C and A alleles with a frequency of ۰.۷۲ and ۰.۲۸ respectively, highly significant differences (P≤۰.۰۱) appeared in the total milk production according to the genotype. As for the milk components, it was found that there were significant (P≤۰.۰۵) differences in the percentage of fat and the percentage of non-fat solids. From the results of the current study, it can be concluded that the SCD۱ gene can be adopted as an important indicator in developing genetic improvement strategies for Awassi sheep to maximize the economic return from breeding projects by selecting and cross-breeding the genotypes that achieved the best product performance.
نویسندگان
A. G Naeemah
Republic of Iraq-Ministry of Agriculture, Office Planning and Follow–Up, Animal Production Division, Iraq
N. N Al-Anbari
Animal Production Department, College of Agricultural Engineering Sciences, University of Baghdad, Baghdad, Iraq
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