الفهرس | Only 14 pages are availabe for public view |
Abstract The objectives of this study were to: 1- Use sophisticated techniques in sheep breeding like:- A- Restriction fragment length polymorphisms (PCR- RFLP). B- Single- strand conformation polymorphism 9PCR- SSCP). C- DNA sequencing, to detect the diversity between and within breeds. 2- Examine the presence of some gens known to affect sheep fertility and growth, namely, BMPR- IB, GDF9 and BMP- 15 for fertility and IGFBP- 3 and o gh for growth in egyptian sheep breeds, suffolk and some crosses. |