Changes in perception of the rural areas from the perspective of agriculture only gave the impulse for emergence of a new direction in the Common Agricultural Policy (CAP) of the European Union (EU). The Leader initiative established in 1991 aims at activating rural communities and rational local resources management. Local action groups (LAG) that assume the form of agreements of three local sectors (representatives of community, entrepreneurs and representatives of authorities) are the units implementing the Leader approach. The questionnaire based survey covering 44% of the LAGs operating in Poland was conducted. Thanks to that survey knowledge of the specificity and outcomes of their work was obtained.
An experiment was conducted to evaluate the growth performance of Nile tilapia fed with supplemental feed (25% crude protein) at 50% satiation. Juvenile Nile tilapia (average weight 6.4 g) were stocked in an earthen pond at 2.4 fish m⁻² . The pond was fertilized twice weekly with a mixture of superphosphate and urea fertilizer (68 kg ha 1⁻¹). The annual fish yield was 6880 kg ha⁻¹. The mean weight of harvested fish ranged from 110 to 250 g. The food conversion ratio (FCR) was 0.82, the average daily weight gain (ADG) was 0.9 g d⁻¹ and the specific growth rate was 1.55 % d⁻¹. This study demonstrated that 50% satiation feeding is an effective feeding rate for improving the production of Nile tilapia cultured in a fertilized, freshwater earthen pond.