The usefulness of the natural phenols thymol and isoeugenol to control the emergence of flies from Japanese quail manure.

GLEISER R M; DE DIÓ, M.B.; BATTAN, M.; MARIN, R.H.

Louisville

Congreso; 2015 Poultry Science Association Annual Meeting; 2015

Saprophagous flies are mechanical vectors of pathogens. Besides, their defecation and regurgitation soils equipment and structures and can reduce light levels of lighting fixtures leading to reductions in productivity, egg quality and welfare. A conventional method for pest control in the short term is the use of synthetic insecticides. However, their extensive and widespread use promotes the development of resistance, and can impact negatively on animals and the environment. Main components of plant essential oils were proposed as bio-friendly alternatives with a wide range of potential effects including pest repellent and biocide. This study evaluates whether direct spraying of thymol or isoeugenol on Japanese quail manure may affect the emergence of flies. Dropping samples from quails fed with a standard breeder ration were collected, placed in open plastic containers and sprayed with one of 6 treatments as follows: solutions of isoeugenol or thymol in ethanol at low (5 x 10-5 mol) or high (4 x 10-4 mol) concentrations of each compounds, ethanol (control), or untreated manure (naïve control). Each sample was exposed for 24 hr in the quail production area to allow flies to oviposit, after which it was incubated inside an emergence cage that was inspected daily to collect emerging adult flies. ANOVAs and proportion tests were used to detect differences at P