0:11 Why to ventilate a poultry house
0:43 Roof ventilation
0:59 Longitudinal ventilation
1:07 Tunnel ventilation
1:16 Combination ventilation
1:28 Circulation in poultry houses
1:37 Vertical circulation fans
1:48 Horizontal circulation fans
1:56 Why circulation fans are used
2:09 Multifan Exhaust fans
2:19 Multifan Circulation fans