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Articles by M.R. Ahmadi
Total Records ( 2 ) for M.R. Ahmadi
  M. Yavari , M. Haghkhah , M.R. Ahmadi , H.R. Gheisari and S. Nazifi
  The aim of this study was to compare cervical and uterine cytology of the postpartum endometritis and bacterial isolate groups in Holstein dairy cows. Four hundred two postpartum dairy cows from 13 commercial dairy herds were examined once between 21 and 35 days postpartum and 86 Holstein cows with postpartum endometritis were sampled. Endometritis was diagnosed by external observation, rectal palpation, vaginal exam, ultrasonography and cervical and uterine cytological examinations. Bacterial swabs were collected using a transcervical double-guarded swab. In total, cows were classified by clinical signs severity, ovarian status and bacterial culture results. The neutrophil percentage in cervical mucosa and uterine fluid of the cows affected by Arcanobacterium pyogenes and clinical signs of purulent discharge (E3) were significantly (p<0.05) higher than other groups. The large vacuolated epithelial cells percentage in cervical mucosa were higher significantly (p<0.05) than that percentage in uterine fluid. The result of this study couldn’t show any significant differences between neutrophils percentages of cervical mucosa and uterine fluid smear in cows with three classifications. Therefore, cervical sample is practical and applicable in all commercial herds. In conclusion, the cytological evaluation of cervical smear at fresh cows is suitable for diagnosis of subclinical endometritis, planning for treatment and prognosis of fertility after voluntary waiting period of dairy cows.
  S.M. Mousavi , S.S. Mirzargar , H. Ebrahim Zadeh Mousavi , R. Omid Baigi , A. Khosravi , A. Bahonar and M.R. Ahmadi
  The aim of this study was introducing a new herbal constitution for malachite green in hatcheries. In this study, antifungal activities of a new Combination of Essential Oils (CEO) from the herbs; Thymus vulgaris, Salvia officinalis, Eucalyptus globulus and Mentha piperita in Oncorhynchus mykiss eggs and its effects on hatching rate in comparison with malachite green (a specific treatment for the control of saprolegniasis) were studied. After fertilization, eggs were transferred to incubators and then treated with five concentration of the combined essential oils with concentrations: 10, 50, 100, 150 and 200 ppm, respectively and malachite green (1 ppm) using constant flow treatment method for incubation period. One incubator was as control without any treatment The water quality factors were controlled over the study period. In the end of hatching rate, the mold infection and hatching rate were calculated. The hatching percentage in five treatment groups of CEO were 69.99% at 10 ppm, 63.61% at 50 ppm, 62.1% at 100 ppm, 60.53% at 150 ppm, 54.63% at 200 ppm, 60%. 83 at 1 ppm of malachite green group and 53.48% in control group, respectively. The results revealed significant antifungal effects of the combined essential oils in comparison with malachite green on fish eggs so that it could decrease mold infection and increase hatching rate on concentration 10 ppm (p < 0.05). This indicated that this combination of essential oils may be a promising antifungal agent in aquaculture.
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