In DR Congo, broilers are increasingly popular, their diet requires a certain protein balance. Cowpea seeds are particularly rich in protein (23 to 25 of their dry weigh), carbohydrates (50 to 67%) and lipid (1,9%). The objective of this article is to improve the diet of broilers by substituting soybeans for cowpea seeds in Kabinda. Three batches of 30 chicks to 15 days were feed rations based Cowpea seeds, Chicken feed 0% control (T0), chikens feed 10% cowpea (T1) and chikens feed 20% (T2). The results obtained on the average daily earnings varied betwen 56 and 160g thraught the experimental period. The effect of substituting soybeans with cowpea seeds were remarkable in the third and fifth week of observation. However, chickens subjected to 20% cowpea (T2) presented a GMQ superior of 160g contrary to the control chickens (T0) is 98. The use of all diets resulted in much more remarkable performance influences for protein-rich rations. It emerges from this study that soybeans can be replaced by roasted cowpea seeds in chicken feed in Kabinda.

Agriculture in tropical regions is characterized by low productivity. In Kabinda, the dramatic fall in crop yields is due to the natural poverty of the soil with nutritious elements, the most important of which is nitrogen and the scarcity of use the chemical fertilizers. Market gardening, an activity that generates income for local populations and ensures their food security. In order to contribute to the substainable improvement of the productivity of vegetables crops. A study on the influence of the organic matter on the pepper (Capsicum nigrum L.) Crop grown on sandy soil in Kabinda was conducted. This work consisted in evaluating the effects of organic manures brought to sandy soils on vegetative growth and pepper yield. The trial was placed according to a complete block randomized device with four repetitions. The treatments consisted of guano, cow dung, chicken droppings and an unamended witness. Our obtained results show that chicken droppings influenced the growth of pepper by giving average values of diameter to the collar and number of leaves respectively 3, 27cm et 48, 5. The same chicken droppings induced pepper production by recording an average number of 4 fruits/plant. However, the highest fruit yield was obtained with the treatment of chicken droppings (22497kg/hectare). Thus, the use of manure based on chicken droppings seems necessary for the cultivation of pepper, in the event of soil deficiency in organic matter, while filling the water deficit during the crop production in Kabinda.