Microbiology
ahmad Enferadi; Abdulghaffar Ownagh; Musa Tavassoli
Articles in Press, Accepted Manuscript, Available Online from 02 December 2023
Abstract
Borrelia species are spirochetes transmitted by ticks that are important in human and animals. In most countries, there is still no molecular epidemiology of borreliosis in ruminants. The present study aimed to evaluate the existence of Borrelia spp. DNA in the blood samples of small ruminants by using ...
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Borrelia species are spirochetes transmitted by ticks that are important in human and animals. In most countries, there is still no molecular epidemiology of borreliosis in ruminants. The present study aimed to evaluate the existence of Borrelia spp. DNA in the blood samples of small ruminants by using PCR method in West Azerbaijan Province, Iran. To detection of Borrelia spp DNA, about 1018 ruminants (456 goats and 562 sheep) blood samples were examined from different bioclimatic regions in West Azerbaijan Province. DNA extracting and polymerase chain reaction were conducted. The following prevalence rates were obtained to the16srRNA, 5s-23srRNA, and ospA genes: 3.55% (20/562), 2.13% (12/562), and 0.88% (5/562) in sheep respectively. And so, the prevalence rates of the genes in goats were: 5s-23srRNA gene 0.87% (4/456), 16srRNA, 1.75% (8/456), ospA gene 0.65% (3/456). The prevalence of Borrelia spp. was significantly different in small ruminants based on the farms and localities (p <0.05). The sheep and goats in humid areas (north of West Azerbaijan) were more infected statistically than those in subhumid areas (south of West Azerbaijan). It is demonstrated that host species like sheep and goats may have a key role in natural Lyme disease cycles and other borreliosis diseases in Iran.
Shahram Nozad; Ali-Gholi Ramin; Gholamali Moghadam; Siamak Asri-Rezaei; Azadeh Babapour; Sina Ramin
Volume 3, Issue 1 , March 2012, , Pages 55-59
Abstract
Seventy six high and low producer cows were selected to determine the composition of the blood and milk parameters, and their interrelationships to determine the indices which could be useful to improve the milk yield. The highest mean blood concentrations were found in high producer cows. Mean values ...
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Seventy six high and low producer cows were selected to determine the composition of the blood and milk parameters, and their interrelationships to determine the indices which could be useful to improve the milk yield. The highest mean blood concentrations were found in high producer cows. Mean values for blood urea nitrogen (BUN), serum protein (SPtn), creatinine, triglycerides (TGs), cholesterol, and beta-hydroxybutyric acid (BHB) were 25.10 mg dL-1, 10.15 g dL-1, 0.81, 62.30, 177.10 and 0.16 mmol L-1, and for macro-minerals including SCa, SMg, serum in-organic phosphorus (SIP), SNa and SK were 3.85, 2.66, 4.63, 108.00 and 4.34 mmol L-1, respectively. The highest concentrations for milk parameters, were observed in the high producers, and were significant only for MCa, MIP and MMg. Mean values for milk urea nitrogen (MUN), milk protein (MPtn) and lactose were 19.90 mg dL-1, 0.39 g dL-1, and 4.12% and for macro-minerals, 13.24, 3.88, 11.03, 73.30 and 16.90 mmol L-1, respectively. There were significant positive correlations between the blood and milk parameters except for creatinine/BHB, TGs/cholesterol and MNa/MK which were not significant. The correlations between the blood parameters were greater than in the milk parameters. Creatinine and SPtn, MUN and MPtn were the main parameters in that the relationships between MPtn with BUN, SPtn and creatinine were more noticeable than others. The regression analysis showed that BUN with the SIP and creatinine, MPtn with the BUN and creatinine and MUN with the SIP and SMg were the appropriate parameters in improvement studies related to the milk yield. In conclusion, BUN, SPtn, MUN and MPtn concentrations are the most effective indices for predicting the preferred milk yield.
