Analysis of the production of propolis with different extraction systems and of the productive capacity of hives

Abstract

Propolis is collected with screens and traps. The study evaluates collection systems and yield/hive. We used moulded fibre glass (A), die-cast plastic (B), double thread woven plastic (C) screens, and trapezoidal opening traps (D). We checked for lifespan, collec tion complexity and retention % after extraction. We also deter mined yield/hive: screen or trap, and scraping.