نتایج جستجو برای: susceptibility of eggs
تعداد نتایج: 21178242 فیلتر نتایج به سال:
The susceptibility of Arvicanthis niloticus, Mastomys huberti, Mastomys erythroleucus and Mus musculus was studied to assess the capacity of these rodents to transmit Schistosoma mansoni. The susceptibility was determined by the percentage of adult schistosomes recovered, the number of eggs per gramme of faeces, the viability of these eggs and the capacity of the rodents to maintain the life cy...
Guardian peach rootstock was evaluated for susceptibility to Meloidogyne incognita race 3 (Georgia-peach isolate) and M. javanica in the greenhouse. Both commercial Guardian seed sources produced plants that were poor hosts of M. incognita and M. javanica. Reproduction as measured by number of egg masses and eggs per plant, eggs per egg mass, and eggs per gram of root were a better measure of h...
A flea larval bioassay was developed by an international team of scientists to monitor the susceptibility of fleas (Ctenocephalides felis) to imidacloprid (Advantage, Bayer HealthCare). The assay was validated using laboratory and field isolates of C. felis. Flea eggs representing different field isolates of C. felis were collected by veterinarians in the United States, United Kingdom, and Germ...
Strategies for controlling cat fleas, Ctenocephalidesfelisfelis (Bouché), have undergone dramatic changes in the past 5 yr. With the advent of on-animal treatments with residual activity the potential for the development of insecticide resistance increases. A larval bioassay was developed to determine the baseline susceptibility of field-collected strains of cat fleas to imidacloprid. All four ...
The objective of the study was to investigate the occurrence of H. pullorum in chicken hens’ eggs and to determine their in vitro susceptibility to various antimicrobial agents. A total of 300 fresh commercial chicken eggs of Balady native breed and poultry farms (PF) were collected from both Assiut and Qena Governorates in Egypt. Every five eggs represented one sample (mixed contents of five e...
date palm spider mite is one of the major pests of date palm in khuzestan.this pest damages fruits in orchards. in the present study responses of 30 native date palm cultivars of khuzestan were evaluated by assessment of pest infestation severity and fruit damage characteristics. based on the responses, cultivars were clustered into four groups as very highly infested cultivars including liloei...
چکیده کنه تارتن دو لکه ای tetranychus urticae koch یکی از چندخوارترین آفات شناخته شده محصولات کشاورزی دنیا به حساب می آید. در این بررسی جمعیت تخم و مراحل فعال این کنه در شرایط آلودگی طبیعی و مصنوعی در برگ های 8 رقم لوبیا در سال 1392 در گلخانه و مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه ارومیه موردمطالعه قرار گرفت. آزمایش به صورت طرح کاملاً تصادفی برای شرایط مزرعه در10 تکرار و برای شرایط گلخانه ای...
a Average Daily Biting rate 0.164 [15] b Fraction of actually infective bites 0.088 Fitted to data mH Humans Natural Mortality rate 3.5r10x5 days x1 [16] rH Birth rate of humans 8 days x1 [16] kH Humans Carrying Capacity 16r10 [16] aH Dengue Mortality in Humans 10 x3 days x1 [17] cH Humans recovery rate 0.143 days x1 [17] pS Susceptible eggs hatching rate 0.15 days x1 [18] d1 Winter modulation ...
a Average Daily Biting rate 0.164 [15] b Fraction of actually infective bites 0.088 Fitted to data mH Humans Natural Mortality rate 3.5r10x5 days x1 [16] rH Birth rate of humans 8 days x1 [16] kH Humans Carrying Capacity 16r10 [16] aH Dengue Mortality in Humans 10 x3 days x1 [17] cH Humans recovery rate 0.143 days x1 [17] pS Susceptible eggs hatching rate 0.15 days x1 [18] d1 Winter modulation ...
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