Hesamedin Seifi
Center of Excellence in Ruminant Abortion and Neonatal Mortality and Department of Clinical Sciences, School of Veterinary Medicine, Ferdowsi Unversity of Mashhad, Mashhad, Iran
[ 1 ] - Genetic variation among Escherichia coli isolates from human and calves by using RAPD PCR
Background: Various strains of Escherichia coli (E. coli) are known as major causes of intestinal and extraintestinal infections in humans and various animal species. Molecular methods are important for the identification of bacterial isolates and nucleotide sequence variations, as well as information on tracking bacterial agents related to the outbreaks, the frequency of the bacterial genetic ...
[ 2 ] - Effect of prostaglandin F2α and GnRH administration at the time of artificial insemination on reproductive performance of dairy cows
The present study aimed to determine the effect of administrating prostaglandin F2α (PGF2α) and GnRH at the time of artificial insemination (AI) on the pregnancy per artificial insemination (P/AI) and the pregnancy survival rate of dairy cows. A number of 830 lactating Holstein cows were randomly divided into four groups. Cows in group 1 (n=200) treated with 150 µg d-cloprostenol. In group 2 (n...
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