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Master's Dissertation
DOI
https://doi.org/10.11606/D.85.2009.tde-22092011-145055
Document
Author
Full name
Amanda Cristina Ramos Koike
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2009
Supervisor
Committee
Arthur, Valter (President)
Brazaca, Solange Guidolin Canniatti
Potenza, Marcos Roberto
Title in Portuguese
Aplicação da radiação gama na desinfestação de rações a base de grãos para alimentação de animais domésticos
Keywords in Portuguese
controle
pragas de produtos armazenados
radiação gama
Abstract in Portuguese
O presente trabalho teve como objetivos realizar um levantamento para identificar a entomofauna associada a rações na cidade São Paulo/SP bem como avaliar o efeito da radiação gama em rações para alimentação de animais domésticos infestadas por pragas. Amostras de 20 lojas Pet Shop de diferentes regiões da cidade São Paulo/SP foram submetidas a triagens de 1 e 45 dias para coleta de insetos com auxilio de aspirador entomológico e peneiras de diferentes granulometrias. As espécies Sitophilus zeamais, Cryptolestes ferrugineus, Lasioderma serricorne e Oryzaephilus sp. apresentaram maior freqüência. Na avaliação dos efeitos da radiação gama utilizamos amostras de grãos de milho, sementes de girassol e mistura para roedores infestadas com insetos adultos das espécies Sitophilus zeamais, Lasioderma serricorne e Plodia interpunctella, após o periodo de 7 a 10 dias foram retirados os insetos e as amostras submetidas a doses crescentes de radiação gama. As espécies Sitophilus zeamais e Lasioderma serricorne foram submetidas as doses de 0,25 a 1,50kGy e a espécie Plodia interpuctella a doses de 0,10 a 2,0kGy. Decorridos 40 dias após irradiação avaliou-se o número de insetos emergidos. Os resultados dos bioensaios com Sitophilus zeamais como com Lasioderma serricorne demostraram que doses apartir de 0,5 kGy foram suficientes para causar letalidade dos ovos e larvas recém emergidas. Os resultados com a Plodia interpunctella a partir de 1,50 kGy, não emergiram insetos adultos, concluindo-se que essas doses foram suficientes para causar letalidade dos ovos e larvas.
Title in English
Application of gamma radiation on disinfestation feed grainbased food for domestic animals
Keywords in English
control
gamma radiation
Abstract in English
This study aimed to realize a survey to identify the associated insects to feed the city São Paulo / SP and also to assess the effect of gamma radiation on food ration for domestic animals infested by pests. Samples of 20 stores, "Pet Shop" in different regions in São Paulo / SP were subjected to trials of 1 and 45 days for collection of insects with the aid of plastic tray and screens of different sizes. The species Sitophilus zeamais, Cryptolestes ferrugineus, Lasioderma serricorne and Oryzaephilus sp. showed a higher frequency. In assessing the effects of gamma radiation we used samples of maize, sunflower seeds and mix for rodents infested with adults of the species Sitophilus zeamais, Lasioderma serricorne and Plodia interpunctella, after the period of 7 to 10 days the insects were removed and samples subjected to increasing doses of gamma radiation. The species Sitophilus zeamais and Lasioderma serricorne subjected doses from 0,25 to 1,50 kGy and species Plodia interpuctella doses from 0,10 to 2,0 kGy. After 40 days of irradiation was evaluated the number of insects emerged. The results of bioassays with Sitophilus zeamais and with Lasioderma serricorne demonstrated that doses starting at 0,5 kGy was sufficient to cause mortality of eggs and newly emerged larvae. The results with Plodia interpunctella from the 1,5 kGy, hasnt emerged adult insects, concluding that these doses were sufficient to cause mortality of eggs and larvae.
 
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Publishing Date
2011-10-17
 
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