Aetiology of livestock fetal mortality in Mazandaran province, Iran

In the farming industry, the productivity of livestock herds depends on the fertility efficiency of animals. The accurate diagnosis of a broad range of aetiological agents causing fetal death is often difficult. Our aim was to assess the prevalence rates ofToxoplasma gondii,Neospora caninum, andBrucellaspp. infections in ruminant abortion using bacteriological culture and molecular techniques in Mazandaran Province, northern Iran. Samples were collected from 70 aborted sheep, goat, and cattle fetuses between September 2014 and December 2015. Necropsy was performed on all the received samples, and brain tissue and abomasal content were obtained from the aborted fetuses. Protozoan infections were detected by specific polymerase chain reaction (PCR) and bacterial agents using bacteriological examinations and PCR assay. Infectious pathogens were detected in 22 out of 70 (31.4%) examined fetuses. Moreover,T. gondii,N. caninum, andB. melitensiswere verified in 13 (18.6%), four (5.7%), and two (2.85%) samples, respectively. Our results showed that infection with the mentioned pathogenic agents may lead to fetal mortality, which can be a major cause of economic loss. The listed pathogens could be considered important etiological agents of fetal loss in Mazandaran Province, for which appropriate control measures such as vaccination and biosecurity can be implemented to prevent infection and reduce reproductive loss in livestock farms.

Download Full-text

Aetiology of livestock fetal mortality in Mazandaran province, Iran

10.7287/peerj.preprints.26558 ◽

2018 ◽

Author(s):

Afsaneh Amouei ◽

Mehdi Sharif ◽

Shahabeddin Sarvi ◽

Ramin Bagheri Nejad ◽

Sargis A Aghayan ◽

...

Keyword(s):

Neospora Caninum ◽

Fetal Loss ◽

Economic Loss ◽

Molecular Techniques ◽

Control Measures ◽

Fetal Mortality ◽

Mazandaran Province ◽

Northern Iran ◽

Etiological Agents ◽

Pathogenic Agents

In the farming industry, the productivity of livestock herds depends on the fertility efficiency of animals. The accurate diagnosis of a broad range of aetiological agents causing fetal death is often difficult. Our aim was to assess the prevalence rates of Toxoplasma gondii, Neospora caninum, and Brucella spp. infections in ruminant abortion using bacteriological culture and molecular techniques in Mazandaran Province, northern Iran. Samples were collected from 70 aborted sheep, goat, and cattle fetuses between September 2014 and December 2015. Necropsy was performed on all the received samples, and brain tissue and abomasal content were obtained from the aborted fetuses. Protozoan infections were detected by specific polymerase chain reaction (PCR) and bacterial agents using bacteriological examinations and PCR assay.Infectious pathogens were detected in 22 out of 70 (31.4%) examined fetuses. Moreover, T. gondii, N. caninum, and B. melitensis were verified in 13 (18.6%), 4 (5.7%), and 2 (2.85%) samples, respectively. Our results showed that infection with the mentioned pathogenic agents brings about considerable fetal mortality, which can be a major cause of economic loss. The listed pathogens could be considered important etiological agents of fetal loss in Mazandaran Province, for which appropriate control measures such as vaccination and biosecurity can be implemented to prevent infection and reduce reproductive loss in livestock farms.

Download Full-text

Molecular Identification of Neospora caninum Infection in Abort-ed Fetuses of Sheep, Cattle, and Goats in Mazandaran Province, Northern Iran

Iranian Journal of Parasitology ◽

10.18502/ijpa.v16i3.7102 ◽

2021 ◽

Author(s):

Behnaz Salehi ◽

Afsaneh Amouei ◽

Samira Dodangeh ◽

Ahmad Daryani ◽

Shahabeddin Sarvi ◽

...

Keyword(s):

Prevalence Rate ◽

Neospora Caninum ◽

Isoamyl Alcohol ◽

Economic Loss ◽

Pcr Assay ◽

Mazandaran Province ◽

Livestock Farming ◽

Northern Iran ◽

Caninum Infection ◽

The Brain

Background: We aimed to identify Neospora caninum DNA in the brain samples of aborted fetuses of cattle, goats, and sheep in Mazandaran, northern Iran, using PCR. Methods: In total, 133 aborted fetuses (51 sheep, 78 cattle, and 4 goats) were randomly collected from different stages of gestation in various regions of Mazandaran, Iran, from Mar 2016 to May 2017. The DNA was extracted from all the brain samples using phenol chloroform isoamyl alcohol instructions. The Nc-5 gene was used for the detection of N. caninum DNA by nested-PCR assay. Results: The detection of N. caninum DNA was confirmed by the observation of a 227 bp band in 24 samples of 133 aborted fetuses (18.1%). The highest prevalence rate of N. caninum was detected in the cattle (20.5%) followed by the sheep (15.6%); however, no positive cases were reported in the goats. The highest and lowest prevalence rates of the infection were reported as 23.8% and 8.6% in Qaemshahr, and Behshahr, respectively. The prevalence rate of infection (32%) in the early gestational period was higher than those in the middle (15%) and late (3.8%) gestational periods. Conclusion: The obtained data of the present study indicated that N. caninum infection may partly be responsible for abortion and economic loss in livestock farming in Mazandaran Province.

Download Full-text

Morphological and Molecular Identification of Emerged Lophomonas blattarum Infection in Mazandaran Province, Northern Iran: First Registry-Based Study

Acta Parasitologica ◽

10.1007/s11686-021-00422-3 ◽

2021 ◽

Author(s):

Mahdi Fakhar ◽

Maryam Nakhaei ◽

Ali Sharifpour ◽

Sepideh Safanavaei ◽

Sivash Abedi ◽

...

Keyword(s):

Molecular Identification ◽

Mazandaran Province ◽

Northern Iran ◽

Lophomonas Blattarum

Download Full-text

Hydrogeochemistry and quality of groundwater of coastal unconfined aquifer in Amol–Ghaemshahr plain, Mazandaran Province, Northern Iran

Environmental Earth Sciences ◽

10.1007/s12665-013-2868-z ◽

2013 ◽

Vol 71 (11) ◽

pp. 4767-4782 ◽

Cited By ~ 7

Author(s):

Houshang Khairy ◽

M. R. Janardhana

Keyword(s):

Unconfined Aquifer ◽

Mazandaran Province ◽

Northern Iran

Download Full-text

Peer review report 2 on “Serological evidence of human cystic echinococcosis and associated risk factors among general population in Mazandaran Province, Northern Iran”

Annals of Medicine and Surgery ◽

10.1016/j.amsu.2017.04.015 ◽

2017 ◽

Vol 13 ◽

pp. 140

Author(s):

Majid Fasihi Harandi

Keyword(s):

Risk Factors ◽

General Population ◽

Peer Review ◽

Cystic Echinococcosis ◽

Serological Evidence ◽

Mazandaran Province ◽

Northern Iran ◽

Associated Risk Factors ◽

Human Cystic Echinococcosis

Download Full-text

Seroprevalence and risk factors associated with infection by Neospora caninum of dairy cattle in the state of Alagoas, Brazil

Pesquisa Veterinária Brasileira ◽

10.1590/s0100-736x2012001000011 ◽

2012 ◽

Vol 32 (10) ◽

pp. 1009-1013 ◽

Cited By ~ 9

Author(s):

Maria E. Sousa ◽

J.N. Porto Wagnner ◽

Pedro P.F. Albuquerque ◽

Orestes L. Souza Neto ◽

Eduardo B. Faria ◽

...

Keyword(s):

Risk Factors ◽

Dairy Cattle ◽

Indirect Immunofluorescence ◽

Neospora Caninum ◽

Infection Risk ◽

Control Measures ◽

Risk Indicators ◽

Blood Samples ◽

Factors Associated ◽

Serological Investigation

The objective of this study was to investigate the prevalence of anti-Neospora caninum antibodies in cattle from milk producing farms of the microregion of Batalha, state of Alagoas, Brazil, as well as to identify the risk factors associated with the infection. Blood samples were collected from 1,004 cattle of 17 farms for the serological investigation regarding the presence of anti-N. caninum antibodies by the Indirect Immunofluorescence Reaction Technique (IMRT). From the total amount of samples analyzed, 77/1,004 (7.67%) were positive and 927/1,004 (92.33%) were negative. The logistical regression identified that cattle from farms without consortium breeding have an infection risk 6.33 (p<0.001; C.I. 2.89-13.10) times higher than cattle from farms with that type of breeding. Cattle from farms where the aborted fetuses are not adequately buried have an infection risk 3.04 (p<0.001; C.I. 1.64-5.63) times higher than cattle from farms with adequate destination of these fetuses. Infection by N. caninum occurs in cattle of the investigated region. The factors identified in our study can be used as risk indicators, so that control measures could be implemented to avoid infection by N. caninum in the herds of this region.

Download Full-text

First new species of the family Stigmocheylidae (Acari: Prostigmata: Paratydeoidea) from Asia

Systematic and Applied Acarology ◽

10.11158/saa.23.11.8 ◽

2018 ◽

Vol 23 (11) ◽

pp. 2159

Author(s):

Mohammad Reza Damavandian ◽

Saeid Paktinat-Saeij

Keyword(s):

New Species ◽

Identification Key ◽

Mazandaran Province ◽

Northern Iran ◽

Adult Females ◽

The Family ◽

A New Species

A new species, Stigmocheylus persicus sp. nov. (Trombidiformes: Prostigmata: Stigmocheylidae) is described based on adult females from Noor, Mazandaran province, northern Iran. The new species can be distinguished from other species by the following features: non-segmented peritremes; absence of setae c3; presence of setae g2; coxa II with four setae; genu I with nine setae; tarsi I–IV with 24(+2ω)–11(+1ω)-11-10 setae. This finding presents the first new species of the family Stigmocheylidae Berlese, 1910 from Asia. Additionally, an identification key to known species of Stigmocheylus is updated.

Download Full-text

Genetic diversity of rice stem borer (Chilo suppressalis Walker) from Northern Iran and comparison with other countries

Journal of Entomological and Acarological Research ◽

10.4081/jear.2016.5507 ◽

2016 ◽

Vol 48 (3) ◽

pp. 360 ◽

Cited By ~ 2

Author(s):

M. Shayanmehr ◽

E. Yoosefi-Lafooraki

Keyword(s):

Genetic Diversity ◽

Stem Borer ◽

Chilo Suppressalis ◽

Mazandaran Province ◽

Northern Iran ◽

Low Genetic Diversity ◽

High Gene ◽

Major Pest ◽

Different Populations ◽

Low Levels

Rice striped stem borer, Chilo suppressalis Walker (Lepidoptera: Crambidae) is considered the major pest of rice in Iran. Because of the serious damage on rice in Northern Iran, the present study was conducted to investigate genetic diversity within populations of C. suppressalis, from Mazandaran using a template of cytochrome oxidase I gene, 750 bps, (COI). Later the haplotypes from Iran were compared with those found in other countries. According to the results of this study, there is very low genetic diversity (two haplotypes) among different populations of this pest in populations of Northern Iran. The genetic similarity and low levels of genetic diversity of these populations suggest that the pest colonization occurred relatively recently and there is high gene flow between these populations of the province. In addition, haplotypes of Mazandaran province are different with those found in other countries. The similarity of Iranian population (Simorgh) with one population from China indicated that China might be the origin of C. suppresalis.

Download Full-text