Evaluation De La Production De Cinq Genotypes De Palmier A Huile (Elaeis Guinnensis Jacq.) Replantes Sur Des Parcelles A Haute Densite De Fusariose

Fusarium wilt is the most serious disease of the oil palm (Elaeis guineensis Jacq.) In Africa. The methods of fighting this disease are mainly based on the search for tolerant plant material, so the researchers of CNRA were able to make available to the producers of the genotypes tolerant to the Fusarium wilt. However, two of these supposedly tolerant genotypes, planted on plot D9-3 in Ehania, a highly endemic plot, showed symptoms of vascular Fusarium wilt after 9 years of replanting. The evaluation of production responses in comparison with the physiological states of other genotypes of the same parental origin showed that the LM25373 and LM25635 progenies retained their ability to produce in spite of their doubtful physiological state. The appearance of the external symptoms of FHB did not affect the cycles of production of these so-called diseased progeny

Influence of Reproductive Rhythm and Weaning Age on Fertility and Body Condition of Local Breed Does in the District of Abidjan

The objective of this study is to evaluate the reproductive performance of locally bred rabbits by comparing the production of females mated 11 days postpartum (semi-intensive R42) with those mated 25 days postpartum (extensive rhythm R56). Females are naturally protruding.120 rabbits selected from a private farm in Bingerville in the district of Abidjan were followed during the experiment. Receptivity and gestation rates were not significantly influenced (p>0.05) by the reproductive rhythm in the breeding females. Fertility in multiparous females showed a higher rate in the extensive rhythm (89-100%). The semi-intensive rhythm had the highest stillbirth rate (5.6%) and pre-weaning morbidity (14.03%). However, after weaning, morbidity was higher in bunnies in the extensive rhythm (13.6%). In the extensive rhythm, the highest values were observed for the number of weaned bunnies and the survival rate of breeding females. The extensive rhythm significantly increases the longevity of does with a high mortality rate of bunny rabbits. These results could be indicators for further investigation in the search for an optimum rate of rabbit reproduction