The study was carried out to investigate the effects of Camelina and hempseed cakes in the diets of ducks on the intramuscular fatty acid profile. Our study showed that supplementing Camelina cake in duck diets makes it possible to develop functional food, i.e. meat with a significantly higher content of ALA, total n-3 PUFA and the lowest ratios of n-6 / n-3 fatty acids in muscles. Duck diet with hempseed cake produces exceptional quality meat with an enriched content of n-6 GLA.

Glycerol, a by-product of biodiesel production, is non-toxic to humans and environment. With the increase in demand for fuels obtained from biomass, the amount of glycerine waste increases. There are many ways to dispose it (pharmaceutical, cosmetics and chemical industry), but its utilization is still insufficient. Due to the fact that glycerine is a safe, cheap and easy to apply substance, the possibility of using it on a large scale in the aspect of chicken eggs storage seems to be possible.

It has been stressed that increasing the growth velocity and muscle mass in chickens possibly resulted in trade-offs regarding product quality. Therefore, this research aimed at comparing the breast meat quality of chickens with divergent growth rates. The results suggest that selection on high growth rates could be associated with increased pH when the body weight of fast-growing birds reaches about 40 to 60 % of their growth potential and, possibly, also with increased cooking loss.