الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Improving reproductive performance in dairy cows become a must for economical
and profitable issues so this study was carried out to early detect reproductive
abnormalities and induce breeding protocols in dairy management, 181 dairy cows
were examined rectally and by ultrasonographic examination after parturition and
were grouped into 4 groups normal cyclic dairy cows, cows with follicular cyst ,
cows with luteal cyst and cows with pyometra. Each group was treated by different
breeding protocols, the results showed that injection of GnRH will increase lutein
tissue on the ovarian structures and so increase in serum progesterone level and so
better reproductive performance, the group with pyometra showed better
reproductive performance when treated by ceftiofur injection in combination with
PGF2, In conclusion using different breeding protocols in dairy management and
early detection and treatment of reproductive disorders will improve reproductive
efficiency.