Sexual dimorphism of ducks (Cairina moschata, Linnaeus 1758) reared in the southern forest of Côte d’Ivoire

Sexual dimorphism was studied on 213 ducks including 92 males and 121 females of the species Cairina moschata in southern forest Côte d'Ivoire. Measurements were made using a tape measure weighing with an electronic scale. A step-wise discriminant analysis it possible to examine 21 morphometric descriptors. All linear measures except beak head significantly higher than females. 18 these parameters are statistically significant Mann-Whitney U test. Of descriptors, nine strongly correlated positively for first two fourth axis while is negatively third factorial axis. The projection individuals plane principal component shows separation batches so that along 1 male gather towards negative coordinates female positive coordinates. values ​​recorded factor confirm 92.49% membership specimens different defined groups. This proposes reclassification group 14 among