Epimiology of africanized honeybee nosemosis in the region of Pindamonhangaba, SP, Brazil.

Authors

  • Érica Weinstein Teixeira Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Centro de Apicultura Tropical, Nova Odessa, SP
  • Etelvina Conceição Almeida da Silva Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Centro de Apicultura Tropical, Nova Odessa, SP
  • Maria Luisa Teles Marques Florencio Alves Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Centro de Apicultura Tropical, Nova Odessa, SP
  • Augusta Carolina de Camargo Carmello Moreti Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Centro de Apicultura Tropical, Nova Odessa, SP
  • Ronaldo Mário Barbosa da Silva Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Centro de Apicultura Tropical, Nova Odessa, SP
  • Paulo Henrique Dantas da Gama Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Estação Experimental de Zootecnia de Pindamonhangaba, Pindamonhangaba, SP

Keywords:

protozoosis, pathology, nosemosis, Nosema apis, Apis mellifera

Abstract

Nosema apis Zander spores are currently present in many bee yards in Brazil throughout the year. For susceptible strains of honey bees, when environmentai conditions became favorable, this parasite can reproduce quickly, giving pace for the bee disease called nosemose, whose characteristic symptoms are abdominal distension, dysentery, difficulty to fly and increased rate of death. The work was carried out aiming to study natural infestation level and its yearly fluctuation in order to evaluate the lesses caused to the local beekeping industry and, besides, (o subsidize prevention programs for this disease. From samples of about 200 bees, taken fortnightly from five hives of Africanized honey bees, sorted in a 50-hive experimental apiary, 35 intestines (ventriculus, anterior intestine and rectum) were removed and ground. A drop of this smear was observed in a hernacytometer, in order to count the number of N. apis spores/mm3. From January to March and from October to December the number of spores is very low but, even during the period of highest infestation (April to September) the infestation remain fairly below 1 x 106 spores/mm3, level at which the symptoms arise. It was concluded that there is no need to treat the bees against nosemosis in the Pindamonhangaba area.

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Published

2013-12-05

Issue

Section

FORAGE CROPS AND PASTURES

How to Cite

Epimiology of africanized honeybee nosemosis in the region of Pindamonhangaba, SP, Brazil. (2013). Bulletin of Animal Husbandry, 54(1), 103-106. http://bia.iz.sp.gov.br/index.php/bia/article/view/979

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