Epizootic situation on chicken ticks infection and efficacy of preparation Biorex-GH on production experience

Contamination level in the objects of outdoor environment in poultry farms by chicken ticks Dermanyssus gallinae and evaluation of the efficacy of preparation Biorex GH against arachkoentomoses were under study. 20 scrapes from floor, wall surface, passageways etc. were taken to determine the level...

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Veröffentlicht in:Rossijskij parazitologičeskij žurnal 2015 (2), p.83-91
Hauptverfasser: Safiullin, R.T, Bondarenko, L.A, Vavilov, Yu.S., The K.I. Skryabin All-Russia Research and Development Inst. of Academic and Applied Parasitology of Plants and Animals, Moscow (Russian Federation)
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Sprache:rus
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Zusammenfassung:Contamination level in the objects of outdoor environment in poultry farms by chicken ticks Dermanyssus gallinae and evaluation of the efficacy of preparation Biorex GH against arachkoentomoses were under study. 20 scrapes from floor, wall surface, passageways etc. were taken to determine the level of the poultry farms contamination by infection elements of D. gallinae. The number of ticks including egg, larva, nymph and imago stages were calculated under a microscope in a Petri dish. Biorex GH concentrate 2,5% (active ingredient - cypermethrin) was applied for desacarization of the poultry farm during the preparation period at a working concentration 0,005% by consumption rate 150 ml/m2 and exposition within 24 hours. In the final stage of preparation the desacarization was conducted using the same drug concentration by consumption rate 75 ml/m2. The drug efficacy was determined weekly over the first month, then every two weeks based on the calculation of the amount of ticks in the installed traps. The 45% infestation of examined samples was reported based on the fact that 3-12 examples D. gallinae was found in one sample. Scrapes from the wall surface were infested by ticks by 40%, technological equipment - 20%, passageways - 10%. The drug efficacy in different terms after treatment was 88.5 and 85.1%. The treatment with Biorex GH had a positive impact on survival rate of chickens, productivity and other production and economic parameters. Изучали степень контаминации объектов внешней среды птичников инвазионными элементами куриного клеща Dermanyssus gallinae и оценивали эффективность препарата биорекс-ГХ при арахноэнтомозах. Для определения степени контаминации птичников инвазионными элементами D. gallinae брали по 20 соскобов с пола, поверхности стен, проходов и т. д. В чашках Петри подсчитывали под микроскопом число клещей с учетом яиц, личинок, нимф и имаго. Для дезакаризации птичника в период подготовки использовали 2,5%-ный концентрат биорекса-ГХ (ДВ циперметрин) в рабочей концентрации 0,005% при норме расхода 150 мл/м2 и экспозиции 24 ч. На завершающем этапе подготовки проводили дезакаризацию с использованием той же концентрации препарата при норме расхода 75 мл/м2. Эффективность препарата учитывали еженедельно в течение первого месяца и через каждые 2 недели в последующем путем учета числа клещей в установленных ловушках. Установлена 45%-ная пораженность исследованных проб при обнаружении 3-12 экз. D. gallinae в одной пробе. Соскобы с поверхности
ISSN:1998-8435
2541-7843