This research aims to address this question and to improve the income of small poultry
producers through identification of poultry production systems and the supply chains with their
various constraints, including the diseases and to analyze the explicative factors of the poultry
development at local level. The research was conducted by interviewing and production record
keeping system at the household farms which have poultry production at different scales in Hanoi
suburb from December 2008 to November 2009. There are four poultry production systems (1)
integrated poultry production system with a good bio-safety level; (2) layer/reproductive poultry
production system at the semi-commercial scale with minimal to moderate bio-safety level; (3) broiler
production system at the semi-commercial scale with the low to minimal bio-safety level and; (4)
backyard poultry production system with low bio-safety level. Only the chicken flocks in the system 1
and the layer/reproductive hens in the system 2 are regularly vaccinated. This research showed that
farmers’ know-how is still limited, negatively affecting income and economic efficacy of the systems.
In order to have sustainable development in the next years to come, it is necessary to equip farmers
with good scientific knowledge or to support them to build improved poultry production systems such
as a practical system for disease prevention and food safety, the HACCP.