The sperm mucus penetration test checks whether a man's sperm can move through the cervical mucus. This test is not done very often because there are other fertility tests that give more information about the fertility problem.
The current system of shifting cultivation can best be described as neo-traditional, composed of modern (colonial) and traditional (pre-colonial) structural elements. It is a locally adapted version of what was introduced by the Belgian Colonial Administration into the Ituri Forest under the heading of paysannat indigÃ¨ne including resettlement schemes and compulsory cultivation [Jurion and Henry 1967].
Subsistence agriculture is a labor-intensive method of cultivating food crops, which is sufficient for the farmer and his family. The production is done on a small scale which is adequate to feed a small population. Self-sufficiency is primarily focused in subsistence farming, due to which surplus food is reduced.ubsistence agriculture is a labor-intensive method of cultivating food crops, which is sufficient for the farmer and his family. The production is done on a small scale which is adequate to feed a small population. Self-sufficiency is primarily focused in subsistence farming, due to which surplus food is reduced.