Veterinary, Iran
Veterinary, Iran

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Karimi I.,Razi University | Hayatgheybi H.,Islamic Azad University at Urmia | Razmjo M.,Razi University | Yousefi M.,Veterinary Organization | And 2 more authors.
Journal of Applied Biological Sciences | Year: 2010

The aim of this study was to investigate the effects of an essential oil (EO) of a traditional herb; Melissa officinalis (MO), on the lipid profile of rabbits fed a cholesterol-rich diet (HC). Twenty rabbits were divided into four groups (n=5 for each): Normal control (NC) which fed a standard diet and three cholesterol-fed groups: HC, HC + 1% MO, and HC + 3% MO groups which received 0%, 1%, and 3% EO, respectively for four weeks. Blood samples were collected on day 0 and then at weeks 1, 2, 3, and 4 to determine the levels of total serum cholesterol (TC), high density lipoprotein-cholesterol (HDL-C), low density lipoprotein-cholesterol (LDL-C), very low density lipoprotein-cholesterol (VLDL-C), triglycerides (TGs) and atherogenic index (AI). There were no significant differences in body weight gain and food intake in all groups. The HC apparently raised the TC, LDL-C, VLDL-C, HDL-C and TGs without significant accrual effect on AI. In comparison to NC group, EO in both HC + 1% MO and HC + 3% MO groups significantly decreased serum lipid and lipoprotein level whereas no significant effect on AI was observed. It can be concluded that EO extracted from MO leaves contributes to a lipid-lowering action in cholesterol-fed rabbits.


Shoorijeh S.J.,Shiraz University | Ramin A.G.,Uremia University | Maclachlan N.J.,University of California at Davis | Osburn B.I.,University of California at Davis | And 7 more authors.
Comparative Immunology, Microbiology and Infectious Diseases | Year: 2010

Bluetongue (BT) is an important disease of ruminant livestock that is currently emerging in previously unaffected regions, most notably extensive portions of Europe. The epidemiology of BT virus (BTV) infection is poorly defined in much of the world, including extensive portions of Asia and the Middle East. Thus, the objective of this study was to describe the distribution and seroprevalence of BTV infection of sheep in West Azerbaijan Province of Iran, and to identify demographic and climatological factors associated with exposure of these sheep to BTV infection. BTV infection was widespread in the province as 400 of 1153 (34.7%) of the sheep sera evaluated contained antibodies to BTV, as determined by competitive ELISA, and 172 of 184 flocks included BTV seropositive sheep (93.5%). Multivariable logistic analyses failed to identify specific demographic or animal management practices that were predictive of BTV serological status of the sheep flocks. The virus serotypes and vector insects that occur within the region remain unknown. © 2008 Elsevier Ltd.


PubMed | Islamic Azad University at Sanandaj Branch, Islamic Azad University at Tehran and Veterinary Organization
Type: | Journal: Journal of separation science | Year: 2016

A solid-phase nanoextraction method has been developed for the extraction and preconcentration of polychlorinated biphenyls using carboxyl multiwalled carbon nanotubes as a solid nano-sorbent. Parameters affecting extraction efficiency such as sorbent amount, desorption solvent type and volume, extraction time, pH, and salt content have been studied. Under optimized conditions, the correlation coefficient was up to 0.9989, the limits of detection was in the range of 1.4-3.5 ng/L, and limits of quantification was between 4.8 and 11.6 ng/L. The recoveries were in the range of 99-106% for different spiked analytes. The relative standard deviation for water samples spiked with two different spiking levels has been between 4 and 10%. The proposed sustainable method is rapid, easy to use, and small consumption of organic solvent for the detection and determination of trace levels of polychlorinated biphenyls in environmental waters.


Rajaian H.,Shiraz University | Aberumandi M.,Shiraz University | Jalaei J.,Shiraz University | Khosravi M.,Veterinary Organization
Iranian Journal of Veterinary Research | Year: 2014

Satureja hortensis is a popular herb in most regions of the world with leaves used as seasoning. Evidence shows that this plant contains phenolic components such as thymol and carvacrol with a relatively wide spectrum of antimicrobial activity. This study aimed at evaluating the efficacy of S. hortensis plant powder as an alternative to antimicrobial growth promoters in broiler diets. The plant was bought in sufficient quantity from the district of Yasouj, Iran and was dried and ground into powder. A total of 140 unsexed 1-day-old Arbor Acers breed broiler chicks were housed and fed a starter diet up to 18 days of age. The birds were then randomly divided into two groups and reared under similar conditions. Chickens received either normal grower (from 18 to 35 days of age) and finisher (from 36 to 50 days of age) diets without S. hortensis (group I) or a similar diet containing one percent plant powder (group II). Statistical comparison of average body weights at various time intervals showed that chickens in group II (1930 ± 29 g, n=63) were significantly (P<0.05) heavier than the birds in the control group (1837 ± 25 g, n=62). The average body weight of males in each group (2075 ± 42 g, n=20 and 2143 ± 40 g, n=22 for groups I and II, respectively) was also greater than those of the females (1724 ± 34 g, n=42 and 1808 ± 30 g, n=41 for groups I and II, respectively). Although feed conversion ratio was slightly less in group II (1.95), it was not substantially different from that in group I (2.02). It is concluded that S. hortensis might be a potential growth promoter in poultry.


Janati Pirouz H.,Ferdowsi University of Mashhad | Mohammadi G.,Ferdowsi University of Mashhad | Mehrzad J.,Ferdowsi University of Mashhad | Azizzadeh M.,Ferdowsi University of Mashhad | Nazem Shirazi M.H.,Veterinary Organization
Tropical Animal Health and Production | Year: 2015

Coxiella burnetii, an obligate intracellular bacterium, is the causative agent of important zoonotic Q fever. It is the etiological agent of coxiellosis or Q fever in animals and human. This seroepidemiological survey was conducted to determine the seroprevalence of coxiellosis in increasingly camel raised population in vast area of Khorasan (North, South, and Razavi) provinces, northeast Iran. Using cluster random sampling strategy, 167 camels in 11 counties were selected as serum samples. Sera were assayed for antibody against C. burnetii using a Q fever ELISA kit. Logistic regression model was used to insight the contributing risk factor(s) of Q fever in the study area. C. burnetii was widely distributed throughout the study area. Seroprevalence of C. burnetii at animal level was 28.7 % [(95 % confidence interval (CI): 21.83, 35.56)] for camel populations. The proportion of seropositivity for camels in the studied counties ranged from 0 to 63.6 %. Logistic regression model showed that age correlated with seroprevalence of coxiellosis at the individual level in camels (P < 0.05). This study showed that a relatively high proportion of camels are seropositive to C. burnetii. Considering the economic, zoonotic, and public health importance of Q fever, percussion measures are to be implemented to prevent spreading of C. burnetii and zeroing the risk of Q fever in farm animals and human in this agro-ecologically and geopolitically important region. © 2015, Springer Science+Business Media Dordrecht.


Chinikar S.,Pasteur Institute of Iran | Ghiasi S.M.,Pasteur Institute of Iran | Moradi M.,Pasteur Institute of Iran | Goya M.M.,Center for Disease Control | And 4 more authors.
Vector-Borne and Zoonotic Diseases | Year: 2010

Crimean-Congo hemorrhagic fever (CCHF) is viral hemorrhagic fever caused by CCHF virus, which belongs to the family Bunyaviridae and the genus Nairovirus. The virus is transmitted to humans via contact with blood and tissue from infected livestock, a tick bite, or contact with an infected person. Since 2000, we have shown the disease to be prevalent in 23 out of 30 provinces of Iran. Among those, Sistan-va-Baluchistan, Isfahan, Fars, Tehran, Khorasan, and Khuzestan demonstrated the highest infection, respectively. Notably, Sistan-va-Baluchistan province, southeast of Iran, has the highest prevalence of CCHF, and has shown to be present since at least 2000. Phylogenetic study of the CCHF virus genome isolated from Iranian patients showed a close relationship with the CCHF Matin strain (Pakistan). Our epidemiological data in the last decade have implied that the severity and fatality rate of the disease has ranged variably in different provinces of Iran. More pathogenesis and phylogenetic studies should therefore be investigated to clarify these differences. Copyright 2010, Mary Ann Liebert, Inc.


Aslani M.R.,Ferdowsi University of Mashhad | Movassaghi A.R.,Ferdowsi University of Mashhad | Najarnezhad V.,Veterinary Organization | Pirouz H.J.,Veterinary Organization | Bami M.H.,Ferdowsi University of Mashhad
Tropical Animal Health and Production | Year: 2011

An outbreak of acute oxalate intoxication in a sheep flock was associated to Seidlitzia rosmarinus (Chenopodiaceae) with a mortality rate of about 19%. Affected sheep showed marked azotemia and hypocalcemia. Post-mortem findings included congestion and hemorrhage in visceral organs, ruminitis frequently associated with precipitation of birefringent calcium oxalate crystals, and acute nephrosis with numerous birefringent calcium oxalate crystals in renal tubules. This is the first report of oxalate poisoning due to ingestion of S. rosmarinus in sheep. © 2011 Springer Science+Business Media B.V.


Rahimi P.,Pasteur Institute of Iran | Sohrabi A.,Pasteur Institute of Iran | Ashrafihelan J.,University of Tabriz | Edalat R.,Pasteur Institute of Iran | And 4 more authors.
Emerging Infectious Diseases | Year: 2010

In 2008, African swine fever was introduced into Georgia, after which it spread to neighboring Armenia, Azerbaijan, and the Russian Federation. That same year, PCR and sequence analysis identified African swine fever virus in samples from 3 dead female wild boars in northwestern Iran. Wild boars may serve as a reservoir.


PubMed | Ferdowsi University of Mashhad and Veterinary Organization
Type: Journal Article | Journal: Tropical animal health and production | Year: 2015

Coxiella burnetii, an obligate intracellular bacterium, is the causative agent of important zoonotic Q fever. It is the etiological agent of coxiellosis or Q fever in animals and human. This seroepidemiological survey was conducted to determine the seroprevalence of coxiellosis in increasingly camel raised population in vast area of Khorasan (North, South, and Razavi) provinces, northeast Iran. Using cluster random sampling strategy, 167 camels in 11 counties were selected as serum samples. Sera were assayed for antibody against C. burnetii using a Q fever ELISA kit. Logistic regression model was used to insight the contributing risk factor(s) of Q fever in the study area. C. burnetii was widely distributed throughout the study area. Seroprevalence of C. burnetii at animal level was 28.7 % [(95 % confidence interval (CI): 21.83, 35.56)] for camel populations. The proportion of seropositivity for camels in the studied counties ranged from 0 to 63.6 %. Logistic regression model showed that age correlated with seroprevalence of coxiellosis at the individual level in camels (P<0.05). This study showed that a relatively high proportion of camels are seropositive to C. burnetii. Considering the economic, zoonotic, and public health importance of Q fever, percussion measures are to be implemented to prevent spreading of C. burnetii and zeroing the risk of Q fever in farm animals and human in this agro-ecologically and geopolitically important region.


PubMed | University of Tehran, University of Tabriz and Veterinary Organization
Type: Journal Article | Journal: Interdisciplinary toxicology | Year: 2015

In February 2012, 100% mortality was reported in a herd with 79 local sheep that were kept around of Abhar, Northwest of Iran. The ration for adult sheep was daily mixed (40 kg straw, 25 kg wheat and 2 kg Vit-C premix) and accidentally 1 500 g of salinomycin (Salinomycin 12% Premix; Aras Bazar Laboratories, Iran) had been added to the ration (22388 mg/kg = 22388 ppm) and overnight was fed to herd. At the morning, 78 sheep were founded dead and one of them showed convulsive seizures. Postmortem examination revealed pulmonary congestion and edema, hemorrhages in abomasum, large pale kidney and white streak lines in myocardium. Main histopathologic lesions were extensive subepicardial and intercardiomyofibers hemorrhages, extensive cardiomyolysis and myocarditis in heart, severe hyperemia and extensive acute tubular necrosis (ATN) in kidneys and focal necrosis and retention of bile cholangitis in the liver. In this study, on the basis of the history, observation of the ionophore remnant in the ration, clinical signs, gross and histopathological findings, acute salinomycin intoxication is definitely diagnosed.

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