1. Bochno R and Brzozowski W. The effect of age and sex of broiler chickens on slaughter value, feed conversion and production costs. Journal of Animal and Feed Sciences, 7 : 63-72. 1998.
2. Bochno R, Janiszewska M and Brzozowski W. Comparison of some meat production traits for laying type cockerels and broiler chickens reared to different age. Advances in Agricultural Sciences, 6 : 9-17. 1999.
3. Bokkers EAM and Koene P. Eating behavior, and preprandial and postprandial correlations in male broiler and layer chickens. British Poultry Science, 44 : 538-544. 2003.
4. Central Statistical Office. Concise Statistical Yearbook of Poland. Agriculture, hunting and forestry, 304-305. Warsaw, 2005.
5. Damme K and Ristic M. Fattening performance, meat yield and economic aspects of meat and layer type hybrids. World’s Poultry Science Journal, 59 : 50-52, 2003.