Keywords : Ewe


Necropsy findings and histopathological analysis of a terminal stage ewe from a herd with sudden deaths in Mosul

Karam H. Yahya; Saevan S. Al-Mahmood; Thanoon Y. Al-Hubeity

Iraqi Journal of Veterinary Sciences, 2021, Volume 35, Issue 3, Pages 599-604
DOI: 10.33899/ijvs.2020.127015.1435

A three-year-old ewe was received as a terminal stage animal for necropsy in the Teaching Veterinary Hospital, College of Veterinary Medicine, the University of Mosul, on 18/12/2018. The animal was carried alive from the Al-Fthilya region in the eastern north of Mosul and expired before hospitalization. Statement of the owner prevailed sudden deaths of healthy animals or a concise course of illness followed by respiratory distress and nervous manifestations and death at 14 mature animals within mortality rate reached 15.5% in the herd. Necropsy findings and histopathological analysis showed that encephalitis included hyperemic cortical blood vessels, severe perineuronal edema, microglial proliferation. The lungs revealed severe pulmonary edema and signs of peracute pneumonia. Liver sections demonstrated congested portal and central veins and lobular sinusoids with centrilobular coagulative degeneration. At the kidneys, we detected both glomerular and interstitial nephritis with severe tubular cell necrosis. We concluded a state of bacterial septic shock, suggesting Pasteurellosis as a probable etiologic factor from the symptoms and pathological examination. The case was reported, and laboratory tests were requested.

Ovarian lesions in non pregnant ewes in Mosul city

Maryam Hussien; karam yahya

Iraqi Journal of Veterinary Sciences, 2019, Volume 33, Issue 2, Pages 43-49
DOI: 10.33899/ijvs.2019.163028

This study aimed detection and identification of the lesions in the ovaries of ewes and determination of their percentages in Mosul region. For that purpose, ovaries from 108 genital systems were randomly collected from non-pregnant ewes slaughtered at Mosul slaughter house and private butcheries for a period extended from 1/11/2012 to 1/5/2013. All of them were grossly and histologically examined. The result showed occurrence of ovarian cortical atrophy at 0.93% of total samples, also ovarian medullary sinusoidal congestion, ovarian cortical hemorrhage, cortical and medullary perivascular fibrosis at ratios 5.0, 1.39, 1.85, 0.46% respectively noticed. Ovarian follicular degeneration, cortical oophoritis, purulent oophoritis and ovarian cortical scarification also recorded at the ratios 1.39, 0.46, 0.46 and 1.39% respectively, both fibroma and fibrosarcoma were diagnosed at the ratio 0.46% for each. It is concluded from the present study that variable lesions were noticed at the examined samples that may reflect multiple causative agents inducing it.   

Antioxidant status in pregnant ewes vaccinated with Rev 1 against brucellosis

W. S. Al- Khafaji; M. I. Al-Farwachi

Iraqi Journal of Veterinary Sciences, 2012, Volume 26, Issue 1, Pages 15-19
DOI: 10.33899/ijvs.2012.46890

The aim of this study was to examine the changes in the indicators of free radicals and antioxidant activity, represented by malondialdehyde and glutathione peroxidase in the sera of ewes vaccinated with Rev 1 vaccine. The experiment included 28 animals which were divided into four equal groups. Animals of the first and second groups were vaccinated subcutaneously with 2×109 and 2×107 colony forming units (CFU), respectively, whereas the animals of third and fourth groups were vaccinated conjunctively with 2×109 and 2×107 CFU, respectively. Sera were collected monthly for 6 months. Antibody responses were assessed by classical tests (Rose Bengal test, tube agglutination and 2-mercaptoethanol tests) in comparison with competitive ELISA. The antibody titers were higher and remained for along period in the subcutaneously vaccinated groups with the two doses compared those vaccinated conjunctively. There was a significant increase in serum glutathione peroxidase activity in the 8th week post vaccination in subcutaneously vaccinated groups and during the 12th week in those vaccinated conjunctively. Significant increase of serum malondialdehyde levels occurred during the 4th week in those vaccinated conjunctively and in 8th week in those vaccinated subcutaneously. This study concluded that the route of administration of the vaccine affects glutathione peroxidase activity and malondialdehyde level, which act as indicators of oxidative stress response, more than the vaccine dose.