Mesenteric and mediastinal lymph node infection with <Emphasis Type="BoldItalic">Linguatula serrata</Emphasis> nymphs in sheep slaughtered in Kerman slaughterhouse,southeast Iran     

Saeid Reza Nourollahi Fard  Reza Kheirandish  Ehsan Norouzi Asl  Saeid Fathi 《Tropical animal health and production》2011,43(1):1-3

This research was carried out in order to detect the prevalence of nymphal stages of Linguatula serrata in mediastinal and mesenteric lymph nodes of sheep slaughtered in Kerman slaughterhouse, southeast of Iran. For this purpose, mesenteric and mediastinal lymph nodes of 806 sheep of different sex and age were examined. One hundred and thirty out of 806 (16.1%) of the sheep were found positive for L. serrata infection. The infection rate increased with age (P < 0.001). Prevalence of L. serrata nymphs in males and females and different seasons was not significantly different (P > 0.05). Considering the results, it could be concluded that the prevalence of L. serrata in sheep of Kerman is high and plays an important role in epidemiology of linguatulosis. The zoonotic potential of this parasite to human health is discussed.  相似文献   

Genetic analysis of Rutilus rutilus caspicus (Jakowlew 1870) populations in Iran by microsatellite markers     

Saeed Keyvanshokooh  Ahmad Ghasemi  Mohsen Shahriari-Moghadam  Rajab Mohammad Nazari  & Mehdi Rahimpour 《Aquaculture Research》2007,38(9):953-956

The Caspian roach (Rutilus rutilus caspicus) is regarded as one of the most important commercial species in the Caspian Sea. Despite the commercial and conservation importance of the species, information on genetic relationships and diversities at the molecular level in Rutilus rutilus caspicus is scarce. Six microsatellite loci were analysed to study the genetic variation in two major populations of Caspian roach in the Iranian waters of the Caspian Sea: the Anzali Wetland and Gorgan Bay. The F_st value between populations was 0.07, suggesting that the genetic differentiation was significant (P<0.01). Both the studied populations deviated from Hardy–Weinberg equilibrium proportions at a number of loci, mostly due to the deficiency of heterozygosities. The genetic distance between populations was 0.29, which indicates that the genetic difference among the studied populations is pronounced. The differences between both populations were not statistically significant (P>0.05), neither for average number of alleles per locus nor for observed heterozygosities. The data generated in this study provide useful information on the genetic variation and differentiation in populations of Caspian roach.  相似文献   

The impact of land afforestation on carbon stocks surrounding Tehran,Iran     

Saeid Varamesh  Seyyed Mohsen Hosseini  Farshad Keivan Behjou  Ebrahim Fataei 《林业研究》2014,25(1):135-141

The city of Tehran,like many polluted metropolises of the world,has higher emissions of greenhouse gases than other cities in Iran,due to heavy consumption of fossil fuel and landuse changes.To estimate carbon sequestration in two 40 year-old stands of planted Cupressus arizonica and Fraxinus rotundifolia in degraded lands surrounding Tehran,sampling of above-and below-ground biomass,soil(at two depths of 0-15 and 15-30 cm),and leaf litter was done by systematic random sampling.The total carbon stocks of C.arizonica and F.rotundifolia stands were respectively 328.20 and 150.69 Mg·ha-1.The aboveground biomass with 233.16(71%)Mg·ha-1 in C.arizonica and88.16(58.50%)Mg·ha-1 in F.rotundifolia contributed the most shares to carbon sequestration.The diameter at breast height,total height,basal area,total volume,and biomass of C.arizonica were significantly(p0.01)higher than those of F.rotundifolia.Also the depth of 0-30 cm of soil contributed between 18.29%and 32.15%of total ecosystem carbon,respectively.The economic value of carbon sequestration in the two stands in 2011 was calculated at 3.5 and 2.5 million dollars,respectively.Our results indicate that afforestation of the degraded land surrounding Tehran would sequester more carbon than would continuously degraded land,the current status quo.These stands can absorb atmospheric CO2 at different rates,thus tree species selection and stand development should be considered in planning future afforestation projects.  相似文献   

Weed control and wheat (Triticum aestivum L.) yield under application of 2,4-D plus carfentrazone-ethyl and florasulam plus flumetsulam: Evaluation of the efficacy     

Mohammad Ali Baghestani  Eskandar Zand  Saeid Soufizadeh  Naser Bagherani  Reza Deihimfard 《Crop Protection》2007,26(12):1759-1764

Three field experiments were conducted at the research fields of Plant Protection Research Institute, Iran, at different locations in 2004–2005 to study the efficacy of different broadleaved herbicides to control weeds in wheat. Treatments were the full-season hand weeded and weed-infested controls, and post-emergence applications of florasulam plus flumetsulam at 8.75, 10.50, and 12.25 g a.i./ha, 2,4-D plus carfentrazone-ethyl at 210, 245, 280, and 490 g a.i./ha, bromoxynil plus MCPA at 75, 100, and 150 g a.i./ha, 2,4-D at 560, 720, and 1120 g a.i./ha, tribenuron methyl, and 2,4-D plus MCPA. Herbicides were applied at wheat tillering stage. Naturally occurring broadleaved weed populations were used in experiments. Results indicated that bromoxynil plus MCPA at 150 g a.i./ha, 2,4-D plus MCPA, and 2,4-D plus carfentrazone-ethyl at 490 g a.i./ha were the best options to control weeds. Bromoxynil plus MCPA at 150 g a.i./ha and 2,4-D plus MCPA also resulted in the highest wheat yield. Overall, it could be concluded that rotational application of bromoxynil plus MCPA at 150 g a.i./ha, 2,4-D plus MCPA, and 2,4-D plus carfentrazone-ethyl at 490 g a.i./ha would be the best option to achieve satisfactory weed control, high grain yield and prevention of evolution of herbicide-resistant weeds.  相似文献   

Removal of Hexavalent Chromium-Contaminated Water and Wastewater: A Review   总被引：2，自引：0，他引：2  

Mojdeh Owlad  Mohamed Kheireddine Aroua  Wan Ashri Wan Daud  Saeid Baroutian 《Water, air, and soil pollution》2009,200(1-4):59-77

Cr(VI) is a well-known highly toxic metal, considered a priority pollutant. Industrial sources of Cr(VI) include leather tanning, cooling tower blowdown, plating, electroplating, anodizing baths, rinse waters, etc. This article includes a survey of removal techniques for Cr(VI)-contaminated aqueous solutions. A particular focus is given to adsorption, membrane filtration, ion exchange, and electrochemical treatment methods. The primary objective of this article is to provide recent information about the most widely used techniques for Cr(VI) removal.  相似文献   

Hard ticks on one-humped camel (Camelus dromedarius) and their seasonal population dynamics in southeast, Iran     

Fard SR  Fathi S  Asl EN  Nazhad HA  Kazeroni SS 《Tropical animal health and production》2012,44(1):197-200

The primary objective of this study was to determine the diversity and intensity of ticks found on camels (Camelus dromedarius) and their seasonal population dynamics in Kerman, southeast of Iran. For this purpose, a total of 426 tick specimens were collected from 217 infested camels in southeast of Iran during activating seasons of ticks (April 2009 to March 2010). The species collected from camel were Hyalomma dromedarii (84.7%), Hyalomma marginatum (8.7%), Hyalomma anatolicum excavatum (5.4%), and Hyalomma anatolicum anatolicum (1.2%). The highest seasonal activities occurred in summer. The ratio of male ticks was more than female ticks. H. dromedarii was the predominant tick species and accounted for 84.7% of the ticks.  相似文献   

Biodiversity and prevalence of parasites of domestic pigeons (Columba livia domestica) in a selected semiarid zone of South Khorasan, Iran   总被引：1，自引：0，他引：1  

Radfar MH  Asl EN  Seghinsara HR  Dehaghi MM  Fathi S 《Tropical animal health and production》2012,44(2):225-229

Five species of nematodes and cestodes were collected from alimentary canals of pigeons: the nematodes were two species: Ascaridia colombae (16.66%) and Hadjelia truncata (1.96%), while the cestodes were Cotugnia digonopora (13.79%), Raillietina magninumida (18.62%) and Raillietina achinobothridia (32.35%); fecal examination revealed: Eimeria spp. (40.19%) and Cryptosporidium oocysts (2.94%); and blood smears showed: Haemoproteus cloumbae (47/05%); in mouth, throat and larynx: Trichomonans gallinae (57.84%); four species of ectoparasites were collected from feathers and subcutaneous nodules as follows: feathers: Pseudolynchia canariensis (63.72%), Columbicola columbae (79.41%), Menopen gallinea (44.11%); subcutaneous nodules: Laminosioptes cysticola (1.96%). From the parasitic fauna identified in this study, it is imperative to institute an integrated parasitic control through constant changing of litter, regular use of antihelminthics, anticoccidials and dusting of birds with pesticides.  相似文献   

Influence of Pyrolysis Temperatures on FTIR Analysis,Nutrient Bioavailability,and Agricultural use of Poultry Manure Biochars     

Mokhtar Zolfi Bavariani  Abdolmajid Ronaghi  Reza Ghasemi 《Communications in Soil Science and Plant Analysis》2019,50(4):402-411

This study was conducted to investigate the effect of pyrolysis temperature on chemical properties of poultry manure (PM) biochar over the range of 200–500°C. Chemical properties of biochar produced at 200°C were almost the same as PM, but significant changes were observed in higher-temperature-produced biochars. According to elemental and fourier transformation infrared analyses, the degree of carbonization in biochar was accelerated with increasing pyrolysis temperature. Biochar yield decreased, while its pH, cation exchange capacity, and P, K, Fe, Mn, Zn, and Cu contents increased with increasing pyrolysis temperature. The biochar produced at 400°C or 500°C was highly alkaline. Also, due to high electrical conductivity, these types of biochars may not be suitable for salt-sensitive crops. It was concluded that the pyrolysis temperature of more than 300°C reduces the quality of PM biochar for use in calcareous soils, although it may be suitable for acidic soils or environmental application.  相似文献   

What are the drivers of the occurrence of illegal fishing and conservation barriers of sturgeons in the Caspian Sea?          下载免费PDF全文

Seyed Mostafa Aghilinejhad  Saeid Gorgin  Daan van Uhm  Ramtin Joolaie  Rasoul Ghorbani  Seyed Yousef Paighambari  Jahangir Mohammadi  Ali Jalali 《水产资源保护:海洋与淡水生态系统》2018,28(3):690-701

First report of the natural occurrence of eight viruses affecting soybeans in Iran     

A. R. Golnaraghi †  N. Shahraeen  R. Pourrahim  S. Farzadfar  A. Ghasemi 《Plant pathology》2002,51(6):794-794

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