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https://www.arca.fiocruz.br/handle/icict/59408
BREEDING OF BIOMPHALARIA TENAGOPHILA IN MASS SCALE
Biomphalaria
Biomphalaria tenagophila
Resistant lineage
Schistosoma mansoni
Alternative title
Criação em larga escala de Biomphalaria tenagophilaAuthor
Affilliation
Universidade Federal de Juiz de Fora. Instituto de Ciências Biológicas. Laboratório de Parasitologia. Juiz de Fora, MG, Brasil.
Fundação Oswaldo Cruz. Centro de Pesquisas René Rachou. Laboratório de Esquistossomose. Belo Horizonte, MG, Brazil.
Sem afiliação.
Sem afiliação.
Universidade Federal de Minas Gerais. Instituto de Ciências Biológicas. Laboratório de Esquistossomose. Belo Horizonte, MG, Brasil.
Fundação Nacional de Saúde. Superintendência de Controle de Endemias do Estado de São Paulo. São Paulo, SP, Brazil.
Fundação Nacional de Saúde. Superintendência de Controle de Endemias do Estado de São Paulo. São Paulo, SP, Brazil.
Fundação Oswaldo Cruz. Centro de Pesquisas René Rachou. Laboratório de Esquistossomose. Belo Horizonte, MG, Brazil.
Fundação Oswaldo Cruz. Centro de Pesquisas René Rachou. Laboratório de Esquistossomose. Belo Horizonte, MG, Brazil.
Sem afiliação.
Sem afiliação.
Universidade Federal de Minas Gerais. Instituto de Ciências Biológicas. Laboratório de Esquistossomose. Belo Horizonte, MG, Brasil.
Fundação Nacional de Saúde. Superintendência de Controle de Endemias do Estado de São Paulo. São Paulo, SP, Brazil.
Fundação Nacional de Saúde. Superintendência de Controle de Endemias do Estado de São Paulo. São Paulo, SP, Brazil.
Fundação Oswaldo Cruz. Centro de Pesquisas René Rachou. Laboratório de Esquistossomose. Belo Horizonte, MG, Brazil.
Abstract
An efficient method for breeding Biomphalaria tenagophila (Taim lineage/RS) was developed over a 5-year-period (2005-2010). Special facilities were provided which consisted of four cement tanks (9.4 x 0.6 x 0.22 m), with their bottom covered with a layer of sterilized red earth and calcium carbonate. Standard measures were adopted, as follows: each tank should contain an average of 3000 specimens, and would be provided with a daily ration of 35,000 mg complemented with lettuce. A green-house effect heating system was developed which constituted of movable dark canvas covers, which allowed the temperature to be controlled between 20 - 24 degrees C. This system was essential, especially during the coldest months of the year. Approximately 27,000 specimens with a diameter of 12 mm or more were produced during a 14-month-period. The mortality rates of the newly-hatched and adult snails were 77% and 37%, respectively. The follow-up of the development system related to 310 specimens of B. tenagophila demonstrated that 70-day-old snails reached an average of 17.0 +/- 0.9 mm diameter. The mortality rates and the development performance of B. tenagophila snails can be considered as highly satisfactory, when compared with other results in literature related to works carried out with different species of the genus Biomphalaria, under controlled laboratory conditions.
Keywords
Mass scale breedingBiomphalaria
Biomphalaria tenagophila
Resistant lineage
Schistosoma mansoni
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