Université de Lubumbashi, Faculté de Médecine vétérinaire, Département de Zootechnie, Unité de Recherche en Aquaculture «U.R.A. », Lubumbashi, BP 1825, RD Congo
The objective of this work is to stimulate the growth of Oreochromis niloticus using a simple technique for water heating during the cold period in Lubumbashi. 300 Oreochromis niloticus fry, weighing on average 10 grams and divided into two lots of 150 fingerlings were each used in ponds at a rate of one individual per m2. Two ponds of 1.5 are each was used for this study. In one pond, ten barrel, were placed to allow heated water while in the other heating system was not used and it served as control pond. The temperature of the water was removed by using 2 Minimum Maximum thermometers off water (50 cm) and 15 cm depth in water. The results show that the average daily temperatures ponds during the study period were 22
The purpose of this study is to raise the temperature of the pond water during cold in Lubumbashi, using different amounts of charcoal. Three ponds of 1.5 ares were used, and twenty barrels placed in two ponds due to ten per pond. The distance between the barrels was 2 m. The first pond was not heated, the second and the third was heated using respectively 15 and 30 kg of charcoal per day. Temperatures were taken at different times and the data obtained were subjected to analysis of variance using SPSS 16.0 software. The results obtained showed that the addition of 15 kg of charcoal increases the temperature of a unit, respectively 19.2
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