Assessment of the status of techniques to attract farming swiftlets (Aerodramus fuciphagus amechanus) and noise impacts of the speaker intension of swiftlet farming houses in key area in Ho Chi Minh City

Abstract

This paper presents the results of assessing the status of techniques to attract swiftlets, technology to operate swiftlet houses by PRA method combined with direct survey of swiftlet houses in key areas in Ho Chi Minh City. The results show that the number of swiftlet houses is concentrated mainly in Can Gio district with 481 swiftlet houses, method of attracting swiftlets in which the combination of sound and feces accounts for the highest proportion of the methods with 37.14%. The most used sound is the sound of flock of swiftlets, which is used outside with 74.29%, the cry of a baby bird (lullaby) is used the most inside with 74.29%. The number of households that play the loudspeakers daily inside is 94.29% and the playing time is 19.84 hours. While the external speaker is 91.43% and the playing time is 12.17 hours, the sound system originates from Vietnam and Malaysia. Most of the swiftlet houses have a temperature measurement system (82.86%) and most are automatic (77.14%). The assessment of the noise level from the loudspeaker for the swiftlet house by a hand-held noise meter SL4202 that measures the noise according to Vietnamese Standard TCVN 7878-1:2008 shows that the average noise level in the swiftlet house area in Can Gio and Long Phuoc commune, district 9 is 1.1 and 1.4 DBA higher than QCVN 26, respectively.