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- Title
Epidemiologia de Lipeurus caponis (Phthiraptera: Philopteridae) (Nitzsch, 1818) em granjas avícolas comerciais de postura no estado de Minas Gerais, Brasil.
- Authors
do Carmo Rezende, Leandro; Cunha, Lucas Maciel; da Silva Martins, Nelson Rodrigo; Teixeira, Cristina Mara; de Oliveira, Paulo Roberto
- Abstract
Aspects related to the epidemiology of Lipeurus caponis were studied in order to determine the main risk factors for the occurrence of this ectoparasite in commercial laying hen flocks in the State of Minas Gerais, Brazil. An observational, analytical and sectional study was conducted for verifying these factors. Four hundred thirty-one laying poultry flocks were visited in 2012 year to ectoparasite sampling collection and application of a questionnaire about environmental and management characteristics in chicken houses. L. caponis was found in four of the 431 studied chicken houses (0.92%). The main epidemiological determinants for the occurrence of L. caponis were investigated using Chi-square Test, Fisher's Exact Test and multivariate Poisson regression models. Type of facilities obtained an Incidence Rate Ratio (IRR) equal to 51.56, suggesting that poultry bred on the ground have a higher risk of infestation by L. caponis than fowls kept in cages. Also it was observed that chicken's genetic lineage was a marginal risk factor (IRR=1.8) and probably some lineages are more predisposed to infestations. Moreover, the presence of subsistence breeding of domestic chickens around the chicken houses (IRR= 106.89) increases extensively the risk of occurrence of infestations by L. caponis in commercial laying hen flocks from the State of Minas Gerais.
- Subjects
MINAS Gerais (Brazil); HENS; PHILOPTERIDAE; EPIDEMIOLOGY; CHICKENS; POULTRY breeding; DISEASES
- Publication
Brazilian Journal of Veterinary Science / Revista Brasileira de Ciência Veterinária, 2015, Vol 22, Issue 1, p34
- ISSN
1413-0130
- Publication type
Article
- DOI
10.4322/rbcv.2015.316