جستجوی مقالات مرتبط با کلیدواژه "zabol" در نشریات گروه "دامپزشکی"

Cryptosporidium is one of the important common parasites in livestock, poultry and humans, which is very important from the health and economic point of view. The aim of the present study was to investigate the infection with Cryptosporidium in native birds (chickens, turkeys, pigeons) in Zabol. In this study, 534 fecal samples from each native bird, including 260 samples from native chickens and roosters, 139 samples from turkeys, and 135 samples from pigeons were collected. The samples were stained by the modified Ziehl-Neelsen technique and studied with a light microscope .Based on our results, in 11 cases samples taken from birds were found to be infected with Cryptosporidium parasite. The frequency of infection in turkeys was 3.6%, in chickens (chickens and roosters) 0.8% and in pigeons 0.3%. The highest level of contamination was observed in turkeys, but there is no statistically significant difference between different groups of birds. The highest infection with cryptosporidium in terms of age was observed in birds more than one year old and in terms of location, it was observed in birds kept in closed space. The amount of pollution in winter season was more than other seasons. The results of this study showed that the infection with cryptosporidium in native turkeys is higher than other birds, so it is necessary to conduct more studies in this field and provide appropriate strategies  related to the prevention and control of this disease.

Escherichia coli is an opportunistic organism which can cause Colibacillosis syndromes (colisepticemia, pericarditis, perihepathitis, salpingitis and …). E.coli has four phylogenetic groups including A, B1, B2 and D. Phylotyping is an adequate method for surveying the dissipation type of the phylogenetic groups of E.coli isolates in different regions. The present study was conducted to determine the phylogenetic groups of E.coli in Zabol city. In order to determine the frequency of the phylogenetic groups of E.coli in Zabol, 144 broilers suspected of Colibacillosis were sampled and samples were transferred to laboratory in TSB. After culturing and applying some common biochemistry tests, a total number of 100 E.coli were isolated. DNA of all isolates was extracted by boiling method and phylogenetic groups were determined by triplex PCR procedure. In this study; 36 %, 27 %, 23 % and 14 % of 100 E.coli isolates belonged to B1, D, A and B2 phylogenetic groups; respectively. The present study concluded that almost all of E.coli samples which were collected from broilers suspected of Colibacillosis in Zabol belonged to B1 phylogenetic group.

The protozoan parasites species of Eimeria can cause coccidiosis in small ruminants including sheep. Coccidiosis is one of the most important economic and hygienic diseases in Iran and worldwide. Most livestock suffer from Eimeria species inducing coccidiosis during their economic life. Coccidiosis is the most common sheep disease among 6 months and younger lambs in the world. The present study was performed to determine the prevalence rate and diversity of Eimeria species among sheep population in Zabol, Iran. In the present study, faecal samples (approximately 3-5 gr) were obtained from the rectums of 420 sheep during four seasons of 2013-2014. The sheep were from three age groups (less than 6 months, 6-12 months and over 12 months old). Number of oocysts per gram of faeces (OPG) was determined by the standard McMaster technique. Identification of genus and species of oocysts was done on sporulation. The results showed an overall prevalence of 20% for coccidiosis. The species of Eimeria occurring in these sheep were also identified. The age of the sheep had a significant effect on the disease prevalence as well. Oocysts counts were significantly higher in animals of less than 6-months old (P0.05). There was no significant difference in OPG between age and sex of sheep (P>0.05). The species of Eimeria and their prevalence were recognized as: E. ahsata (8.33%), E. parva (7.38%), E.ovinoidalis (3.57%) E. pallida (2.85%), E. weybridgensis (2.14%) E. intricata (0.95%). The results of this study showed Eimeriainfection as a prevalent infection in sheep, in Zabol, Iran.

Considering that camel breeding is widespread in extensive parts of Iran and camels are important in transmission of some zoonotic disease to other ruminant and even humans, the necessity of conducting this study was assumed. In this research, apart from the rate of infection to blood parasites in camels of Zabol, the relationship between infection and some other factors including age, sex and geographical location of camel breeding were also studied. For this purpose, 113 blood samples of camels were taken from different regions of Zabol and transferred to the parasitology laboratory. The results indicated that
30.09% of studied camels were infected by blood parasites with the greatest infection rate of 19.47% belonging Trypanosoma evansi and then infection rates of 6.20% by Theileria sp., 3.54% by bacteria sp. and 88% by blood microfilaria were also observed. Statistical analysis did not show significant relationship between infection to blood parasites and age and sex of the studied camels. With regard to presence of blood parasites in the camels of the region and the importance of arthropods in their transmission, apart from treatment of infected animals, arthropod control measures should also be conducted in other to control these infections.