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      Comportamento de larvas infestantes de Boophilus microplus em pastagem de Brachiaria decumbens Translated title: Behaviour of Boophilus microplus larvae in Brachiaria decumbens pasture

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          Abstract

          O comportamento de larvas de Boophilus microplus em pastagem de Brachiaria decumbens com diferentes dias de descanso para pastoreio bovino foi observado em experimento conduzido na Embrapa Gado de Leite, Coronel Pacheco, MG, Brasil. Foram utilizados grupos com cinco bezerras 7/8 Holandês x Zebu, os quais foram expostos em áreas de 100 x 20m, submetidas a descanso de pastoreio por 0, 15, 30, 45 e 60 dias, durante 72 horas. Após esse período, os bovinos foram estabulados em baias coletivas e, a partir do 15º dia, mantidos em baias individuais com piso ripado, apropriado para a coleta de carrapatos adultos. Os resultados indicaram que são necessários, pelo menos, 60 dias de descanso para reduzir a população de larvas infestantes e permitir que essa prática seja utilizada como medida complementar para o controle do carrapato. Os dados obtidos foram submetidos à análise de regressão polinomial. Estimou-se em 82,6 dias o período necessário para uma completa limpeza da pastagem.

          Translated abstract

          The behaviour of Boophilus microplus larvae in pasture of Brachiaria decumbens with different days of resting for cattle feeding was observed at Embrapa Dairy Cattle, Coronel Pacheco, MG, Brazil. Groups with five calves 7/8 Holstein x Zebu which were exposed to paddocks with 100 x 20m and resting feeding period of 0, 15, 30, 45 and 60 days during 72 hours. After this time, calves were removed and housing. After the fifteenth day they were kept in individual boxes appropriate for tick collection. Results indicated that at least 60 days of paddock resting are necessary for reduction in the infesting larvae population and recommend this handling practice to be used as a complementary measure for tick control. Data were submitted to polynomial regression. A period of 82.6 days was estimated for a complete cleaning of the pasture.

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          Most cited references20

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          Normais Climatológicas (1961-1990)

          (1992)
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            Biology of ticks

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              Studies on the non-parasitic stages of the cattle tick, Boophilus microplus (Canestrini) (AcarinaL Ixodidae)

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                Author and article information

                Journal
                cr
                Ciência Rural
                Cienc. Rural
                Universidade Federal de Santa Maria (Santa Maria, RS, Brazil )
                0103-8478
                1678-4596
                June 2002
                : 32
                : 3
                : 467-472
                Affiliations
                [01] Juiz de Fora MG orgnameEmbrapa Gado de Leite E-mail:john@ 123456cnpgl.embrapa.br
                Article
                S0103-84782002000300016 S0103-8478(02)03200316
                10.1590/S0103-84782002000300016
                f22e7275-3883-40aa-a12a-172fc7f2757e

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

                History
                : 08 August 2001
                : 08 May 2001
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 22, Pages: 6
                Product

                SciELO Brazil

                Categories
                Parasitologia

                Brachiaria decumbens,larva,comportamento,behaviour,larvae,Boophilus microplus

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