Tropicultura (Jan 2007)
Poids de l'oeuf de la pintade locale (Numida meleagris) dans la région centrale du Burkina Faso: rapports avec les variables de l'incubation artificielle et la production des pintadeaux
Abstract
Local Guinea Fowl's (Numida meleagris) Eggs Weight in the Central Area of Burkina Faso: Relationship with Artificial Incubation Variables and Keets Production. The relationships between the local guinea fowl's (Numida meleagris) egg weight and keets' production parameters in the central region of Burkina Faso are studied. The local guinea fowl's eggs (n= 2500) are distributed, per interval of 5 g, in five categories of weight going from 25 g to 50 g. The fertility average rate is 84.4% and varies with the egg weight. The embryonic death rate average is 17.3% and 11.2% with 6.1% are noticed respectively the 1st and the 24th day and between the 25th and the 31st day of incubation. The real hatchery rate is significantly (p< 0.05) correlated (r= 0.85) to the egg weight. The one-day keets weight average is about 25.2 ± 1.9 g and is significantly (p< 0.05) correlated (r= 0.96) to egg weight. This positive relation is always observed between the egg weight and the kinetics of the keets growth (r= 0.97). The one day keets weight (y) is estimated by that of the egg (x) by the regression equation y(g)= 0.4461 x g + 5.3867 (r2= 0.72). The mortality average rate of keets is 16.5% and drops when the egg weight increases. This average is strongly influenced by the death rate (46.4%) recorded in the category of eggs weight from 25 g to 30 g.
