[Economical and ecological factors of rapeseed oil cake use in red deer feeding] | Rapša raušu izmantošanas ekonomiskie un ekoloģiskie faktori staltbriežu ēdināšanā
2010
Proskina, L., Latvia Univ. of Agriculture, Sigulda (Latvia). Research Inst. of Biotechnology and Veterinary Medicine Sigra | Jemeljanovs, A., Latvia Univ. of Agriculture, Sigulda (Latvia). Research Inst. of Biotechnology and Veterinary Medicine Sigra | Vitina, I.I., Latvia Univ. of Agriculture, Sigulda (Latvia). Research Inst. of Biotechnology and Veterinary Medicine Sigra | Krastina, V., Latvia Univ. of Agriculture, Sigulda (Latvia). Research Inst. of Biotechnology and Veterinary Medicine Sigra | Lujane, B., Latvia Univ. of Agriculture, Sigulda (Latvia). Research Inst. of Biotechnology and Veterinary Medicine Sigra | Jansons, I., Latvia Univ. of Agriculture, Sigulda (Latvia). Research Inst. of Biotechnology and Veterinary Medicine Sigra
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 was decreased by 15.02% and expenses decreased by 20.30% in comparison with the control group.
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