Epidemiological characterization and risk evaluation associated with the presence of Phthiraptera in poultry farms from Minas Gerais, Brazil
| Autor: | T. L. M. Arcebispo, Cristina Mara Teixeira, Amanda Soriano-Araújo, Marcos Xavier Silva, Tiago Mendonça de Oliveira, Soraia de Araújo Diniz, Mariana Olímpia Köhler Marra Pinto, Lucas Maciel Cunha |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
medicine.medical_specialty
Epidemiology Lice Laying hens Risk index Correspondence analysis business.industry lcsh:QR1-502 Poultry farming General Biochemistry Genetics and Molecular Biology lcsh:Microbiology Risk evaluation Geography lcsh:Biology (General) epidemiology lice laying hens risk index correspondence analysis Environmental health parasitic diseases medicine General Agricultural and Biological Sciences business lcsh:QH301-705.5 |
| Zdroj: | Acta Scientiarum : Biological Sciences, Vol 41, Pp e47474-e47474 (2019) Acta Scientiarum. Biological Sciences; Vol 41 (2019): Publicação contínua; e47474 Acta Scientiarum. Biological Sciences; v. 41 (2019): Publicação contínua; e47474 Acta Scientiarum Biological Sciences Universidade Estadual de Maringá (UEM) instacron:UEM |
| ISSN: | 1679-9283 1807-863X |
| Popis: | Phthiraptera are lice highly adapted to living as permanent and obligatory ectoparasites of birds and mammals. High infestations by biting lice contribute to the low productivity, loss quality of the eggs, besides weight decrease of chickens. Therefore, this study aimed to evaluate and to characterize the risks involved with the presence of biting lice in laying chicken from Minas Gerais, Brazil, throught a Multiple Correspondence Analysis (MCA). A secondary database with information regarding 402 chicken houses from 42 properties of laying hens from the same region was used and adapted for this study. The variables that composed the correspondence model were selected through Chi-square tests (p ≤ 0.05). A risk index was designed to relate the presence of biting lice out of variables such as risk factors related to the presence of these ectoparasites. The MCA graphic designed to conduct the epidemiological characterization of the presence of biting lice presented a Chi-square accumulated value of 53.59%. There was an association between the risk index and the synanthropic birds, subsistence hens, presence of lice and other ectoparasites in shelters and ectoparasites control. These results provide knowledge about the Phthiraptera epidemiology. Besides that, this information may contribute to the decision-making process in order to reduce the risk of possible infestations in poultry farms and the negative effects of the infestations. |
| Databáze: | OpenAIRE |
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