مقایسه مدلهای خطی با مدلهای آستانه ای در برآورد اثرات ژنتیکی افزایشی مستقیم و مادری بر روی صفت تعداد بره های از شیر گرفته شده در گوسفندان نژاد کردی

تاثیر ساختار ژنتیکی جمعیت بر روی برآورد اجزای واریانس صفات تحت کنترل اثرات مادری با استفاده از یک مدل شبیه سازی مورد مطالعه قرار گرفت. در این مدل تعداد 400 حیوان ماده و 50 حیوان نر بعنوان جامعه پایه انتخاب گردیدند وآمیزش ...

Economic performance in a productive unit has the basic important role for each breeding system. It is important to know the contribution of economic values in the breeding objective for sheep under traditional management ...

The estimation of (co)variance components for multiple traits with maternal genetic effects was found to be influenced by population structure. Two traits in a closed breeding herd with random mating were simulated over ...

مقایسه فراوانی آلل جایگاه ژنی BoLA-DRB3.2 در گاوهای سیستانی در دو مقطع زمانی متفاوت

Leptin plays a role in the regulation of appetite, energy partition, feed intake and body composition of mammals. The leptin gene influences economic traits in cattle such as meat production, milk performance, reproduction ...

Characterization of Genetic Polymorphism of the Bovine Lymphocyte Antigen DRB3.2. Locus in Sistani Cattle of Iran (Bos imiicus)

ABSTRACT

Milk protein polymorphisms have received considerable interest because of their potential use as an aid to genetic selection and genetic characterization of bovine breeds. In Holstein dairy cattle the B ...

The objective of this study was to consider the genetic variations in the exonII region of the leptin gene for the Iranian Holstein cows. Association between leptin genotype with milk production and reproductive traits ...