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The rapeseed oil cake economical and environmental factors were evaluated by its using in red deer (Cervus elaphus) feeding, replacing the equivalent feed value of feed stock used in traditional rolled grain ration used during the winter period. We concluded that 0.2 kg dose in ratio of rapeseed oil cake per day in average for one red deer increased lean meat percentage of carcass by 4.43%, reduced the amount of consumed feed and expenses correspondingly by 3.2% and 8.13% increased feed crude protein utilization in animals organism by 6.18% in comparison with the control group. Environmental pollution with undigested protein in excreted manure decreased by 15.02% and expenses decreased by 20.30% in comparison with the control group. [ABSTRACT FROM AUTHOR]

Innovative composition of broiler chicken meat, in comparison with commercial mass production, contains higher levels of omega-6 and omega-3 fatty acids and carotenoids complex which positively influence human health and prevent risk factors causing different diseases. The research aim was to evaluate the possibility to obtain broiler chicken meat of innovative composition, and to evaluate the expenses of production in bioeconomic aspects by using feed that contains an increased amount of omega-6 and omega-3 fatty acids and additives of carotenoids. Feeding trial was carried with cross ROSS 308 broiler chicken in the age from 1 to 42 days (n=300). It was concluded that the best combination in broiler chicken feed for producing innovative composition meat was 1% flax seed oil, 1% rapeseed oil, and 2% soya bean oil and 0.1% additives of carotenoids complex. Using the mentioned oil and antioxidant composition the obtained broiler chicken meat contained the amount of omega-6 fatty acids of 27.4%, omega-3 fatty acids- 8.3% and carotenoids - 0.86 mg kg-1, it is by 3.9%, 3.2% and 0.24 mg kg-1 and live veidht by 7.87% higher in comparison with commercial mass productions and productivity. In trial the expenses of feed consumption per 1000 broiler chicken breeding were by 1.7% higher than commercial feed, while broiler chicken productivity was 7.9% higher, since the total income from sales of 1000 broiler chicken breeding amounted to LVL 293.47 or it was 15% higher than selling commercial mass production. Innovative composition of broiler chicken meat production do not change environment. [ABSTRACT FROM AUTHOR]