The following are the biggest percentage gainers on the TSX Venture Exchange in mid afternoon trading with their price movements AVANTI ENERGY (AVN.V), $0.16, +0.05, +45.45% ALLIANCEPHARMA (APA.V), $0.37, +0.12, +45.10% GUNPOINT EXPLORATION (GUN.V), $0.17, +0.04, +30.77% AFRICA ENERGY