Ramankevich Anastasiya, Danko Sofiia, Banaszkiewicz Rafał, Kasperek Kornel, Zięba Grzegorz
Institute of Biological Bases of Animal Production, Faculty of Animal Science and Bioeconomy, University of Life Sciences in Lublin, 13 Akademicka Str., 20-950 Lublin, Poland.
Animals (Basel). 2025 Apr 12;15(8):1115. doi: 10.3390/ani15081115.
Rising feed costs in the poultry industry have the greatest impact on the price of the final product. To address this issue, several indicators have been developed to assess feed efficiency. One such indicator is residual feed intake (RFI) which represents the difference between actual and expected feed consumption. A lower RFI indicates better performance, making it a valuable trait for sustainable poultry production. RFI is influenced by several factors, including metabolism, body temperature regulation, arrangement of feathers, behavior and physical activity, all of which affect energy expenditure. The trait has moderate heritability, enabling genetic improvement through selective breeding. Accurate calculation of RFI is essential for effective selection, taking into account growth and maintenance needs. Understanding these factors enables breeders to increase feed efficiency, reduce production costs and promote sustainability within the industry.
家禽业不断上涨的饲料成本对最终产品价格影响最大。为解决这一问题，已开发出若干指标来评估饲料效率。其中一个指标是剩余采食量（RFI），它代表实际采食量与预期采食量之间的差异。较低的RFI表明性能更好，使其成为可持续家禽生产的一个有价值的性状。RFI受多种因素影响，包括新陈代谢、体温调节、羽毛排列、行为和体力活动，所有这些都会影响能量消耗。该性状具有中等遗传力，能够通过选择性育种实现遗传改良。考虑到生长和维持需求，准确计算RFI对于有效选择至关重要。了解这些因素使育种者能够提高饲料效率、降低生产成本并促进该行业的可持续发展。
