Thực trạng phát triển nhà nuôi chim yến tại các tỉnh Nam Bộ
The study on current status of swiftlet farming was conducted in the Southern provinces, from January to June 2020. 1000 Swiftlet’s houses were randomly selected, equivelent to 10% of local swiftlet’s houses to survey (2019). Interview information is included in the questionnaire. Results reveal that most swiftlet’s houses didn’t have construction permits and the number of swiftlet’s houses increased quictly from 2011 (reaching 93% by 2019). Swiftlet’s houses were 1 to 4 floor-houses, of which 2-3 floor-houses were mostly (81.2%). Rate of houses applying method of allurement by sound was 100% and combining sound with odorants was 39.1%. Temperature and humidity: 94.7% of bird houses were determined, in which automatic determination accounted for 80.34%, 100% of the houses was installed with humidification systems. Sound: 100% houses used audio equipment inside and outside the house, working 24/24 inside, 11.61 hours/day outside. Light and ventilation were mostly from vents in the wall and bird doors. Bird's nest yield was 129.7 g/m2/year, harvested 9.32 times/year. Quality of nest: Type I (>9g/nest) 43.38%, type II (7-9g/nest) 36.49%, type III (<7g/nest) 20.13%. Management: the number of households with record of harvesting management accounts for 78.2%, percentage of households pre-processing nest was 25.4%, collecting fertilizers was 76.3%, disinfect inside of the swiftlet house was 84% and most of them used family labor.
