Monitoring of Dermanyssus gallinae in free-range poultry farms.
Exp Appl Acarol
; 48(1-2): 157-66, 2009 Jun.
Article
em En
| MEDLINE
| ID: mdl-19252824
ABSTRACT
Various methods for monitoring Dermanyssus gallinae infestations within free-range egg production units were compared. The study was carried out in five egg-producing free-range poultry buildings infested with D. gallinae. Each farm was divided into six zones (each zone including nest boxes, perches and duckboard) for placing two types of traps (corrugated cardboard and thick card traps) or examining dried droppings for presence of mites. Traps were removed 24 h later, placed into bags and mites were counted at the laboratory using binocular magnification. Droppings were also inspected by eye and mite numbers were estimated. All the methods used allowed us to detect mites although their efficacy differed. The number of mites collected was independent of the type of trap used. Examination of the droppings did not differentiate between buildings with differing mite populations. Placing traps in the nest boxes is a less reliable indicator than placing them on the perches. It appears that the most coherent method for evaluating the D. gallinae population within a free-range flock is to place thick card traps throughout the building, on perches favoured by birds.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Galinhas
/
Monitoramento Ambiental
/
Ácaros
Tipo de estudo:
Evaluation_studies
Limite:
Animals
Idioma:
En
Revista:
Exp Appl Acarol
Assunto da revista:
BIOLOGIA
/
PARASITOLOGIA
Ano de publicação:
2009
Tipo de documento:
Article
País de afiliação:
França