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      DISTRIBUIÇÃO E DINÂMICA POPULACIONAL DO CASCUDINHO ALPHITOBIUS DIAPERINUS (COLEOPTERA: TENEBRIONIDAE) EM AVIÁRIOS DE FRANGO DE CORTE Translated title: SPATIAL DISTRIBUTION AND POPULATION DYNAMICS OF THE LESSER MEALWORM, ALPHITOBIUS DIAPERINUS (COLEOPTERA: TENEBRIONIDAE), IN BROILER HOUSES

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          Abstract

          RESUMO O cascudinho infesta cama de aviários e é uma das pragas-chave da avicultura moderna. Embora ineficiente, seu controle é baseado no uso de inseticidas químicos. Diante da falta de informações acerca da bioecologia do inseto nas condições do Brasil, realizou-se este trabalho em aviários comerciais de frangos de corte, em Cascavel, PR, sendo um aviário de piso de cimento e com alimentação automatizada (Cimento-Automático) e outro com piso de terra batida e comedouros pendulares (Terra-Manual), ambos tendo o piso coberto por cama de maravalha. As avaliações foram realizadas semanalmente com armadilhas colocadas sob comedouros (15 no aviário CimentoAutomático e 10 no Terra-Manual), sendo também registrada a temperatura da cama, nos locais de amostragem. Verificou-se uma tendência em se encontrar menor número de insetos no aviário Cimento-Automático, pela maior dificuldade do inseto em se desenvolver em locais com este tipo de piso. Maiores populações do inseto foram constatadas nas áreas de alojamento em função das elevadas temperaturas e na concentração da ração durante todo o período de criação.

          Translated abstract

          ABSTRACT The lesser mealworm infests chicken-house litter and is a key pest in modern poultry raising. Its control is inefficient and done mostly using insecticides. Due the lack of information on pest bioecology in Brazil, this study was carried out in Cascavel, state of Paraná, Brazil, in two broiler houses: the first with concrete floor and automatic trough (concrete-automatic) and the second with compact soil floor and manual trough (manual-soil), both covered with wood residues litter. The assessments were made in the houses weekly using traps (15 in the concrete-automatic and 10 in the manual-soil). Temperature was also recorded. In general, there was a tendency to find a lower number of insects in the concrete-automatic house due to difficulty of insect development on this kind of floor. Greater populations were found in the shelter areas due to greater temperature and food concentration throughout the entire period of rearing.

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          Feeding Behavior and Growth of Broiler Chicks Fed Larvae of the Darkling Beetle, Alphitobius diaperinus

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            Evaluations of Sampling Methods for Darkling Beetles (Alphitobius diaperinus) in the Litter of Turkey and Broiler Houses

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              Limited Transmission of Turkey Coronavirus in Young Turkeys by Adult Alphitobius diaperinus (Coleoptera: Tenebrionidae)

              Abstract We examined the role of lesser mealworm, Alphitobius diaperinus (Panzer), in the transmission of an enteric disease of turkeys caused by a coronavirus. Turkey coronavirus (TCV) from two sources was studied, one isolate (NC95) was embryo propagated, the second was TCV infected material from turkeys diagnosed with poult enteritis mortality syndrome (PEMS). Beetles were fed virus-infected feces mixed with chicken feed. Transmission of virus was effectively halted by surface sterilization of the beetles. Turkey poults administered beetle homogenates infected with TCV+ PEMS that had not been surface sterilized had reduced weight gains and 50% mortality. Mortality and weight gains were not effected in the NC95 group. Virus isolation procedures were performed to determine NC95 viability at varying time intervals. Beetles were dissected and the guts removed 1, 12, and 24 h after the initial viral feeding. Whole beetles were also examined for comparison. Whole beetles and beetle guts were homogenized and injected into turkey eggs for embryo propagation. Direct immunofluorescence was used to determine the presence of TCV. A. diaperinus were capable of mechanical transmission of TCV. However, only turkey embryos receiving whole beetle and beetle gut homogenates within 1 h of feeding on the virus were positive for TCV. Laboratory studies demonstrating PEMS transmission by A. diaperinus are continuing.
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                Author and article information

                Journal
                aib
                Arquivos do Instituto Biológico
                Arq. Inst. Biol.
                Instituto Biológico (São Paulo, SP, Brazil )
                0020-3653
                1808-1657
                October 2008
                : 75
                : 4
                : 429-435
                Affiliations
                [02] Londrina Paraná orgnameUniversidade Estadual de Londrina orgdiv1Departamento de Agronomia Brazil
                [01] Cascavel Paraná orgnameUniversidade Estadual do Oeste do Paraná orgdiv1Centro de Ciências Biológicas e da Saúde orgdiv2Laboratório de Zoologia de Invertebrados Brazil
                [03] Cascavel Paraná orgnameUniversidade Estadual do Oeste do Paraná orgdiv1Centro de Ciências Exatas e Tecnológicas Brazil
                Article
                S1808-16572008000400429 S1808-1657(08)07500400429
                10.1590/1808-1657v75p4292008
                82721404-293b-41c5-b350-7a36496f8764

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 24 August 2006
                : 13 November 2008
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 25, Pages: 7
                Product

                SciELO Brazil

                Categories
                Artigo Científico

                avicultura,Pest management,animal production,aviculture,Produção animal,manejo integrado de pragas

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