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Position: Home > Articles > Recent Advancement in Residual Feed Intake for Ruminant Animal Production Chinese Journal of Animal Nutrition 2019 (1) 63-69

剩余采食量在反刍动物生产中的研究进展

作  者:
霍鹏举;王玉洁;孙雨坤;张永根
单  位:
东北农业大学动物科学技术学院
关键词:
剩余采食量;反刍动物;计算模型;采食量测定;生产性能
摘  要:
剩余采食量(RFI)是一种评价饲料利用效率的有效指标,与料重比和增重饲料比这2种评价饲料利用效率的指标相比,可以避免不同体形和不同生长时期动物之间饲料利用效率的固有差异,可以使饲料利用效率的评价更加科学。随着科学技术发展,压力传感器系统、图像信息系统能够更加快捷有效地帮助收集采食量的相关数据。研究发现,低RFI的反刍动物对粗饲料的消化能力更强,同时不同RFI的反刍动物瘤胃细菌组成也存在差异,而且在瘤胃中挥发性脂肪酸运输的关键基因与RFI具有相关性。虽然不同RFI的家畜屠宰性能和胴体性状的差异在不同种家畜的研究中还没得到一致的结果,但是在繁殖育种中选育低RFI的家畜可以提高生产效率,节约饲料成本。因此,RFI在规模化养殖中的应用可以为提高牧场生产管理水平、增加经济效益提供帮助。
译  名:
Recent Advancement in Residual Feed Intake for Ruminant Animal Production
作  者:
HUO Pengju;WANG Yujie;SUN Yukun;ZHANG Yonggen;College of Animal Science and Technology,Northeast Agricultural University;
单  位:
HUO Pengju%WANG Yujie%SUN Yukun%ZHANG Yonggen%College of Animal Science and Technology,Northeast Agricultural University
关键词:
residual feed intake;;ruminant;;computational model;;feed intake measurement;;performance
摘  要:
Residual feed intake(RFI) is an effective indicator to evaluate the feed utilization efficiency.Compared with the indexes of feed to gain ratio and gain to feed ratio,RFI can avoid to the inherent difference in animals of different shapes and different growth stages,and promote scientificity of the evaluation on feed utilization efficiency.With the development of science and technology,the pressure sensor system and image information system can help to collect relevant data of feed intake more quickly and effectively.The studies found that ruminant animals with low RFI had a stronger roughage digestive ability.Meanwhile,there were differences in the rumen bacterial composition in different levels of RFI,and the key genes for the transport of volatile fatty acids in the rumen were correlated with the level of RFI.Although the differences in slaughtering performance and carcass traits of different RFI have not been consistent in studies on different animals,breeding livestock with low RFI in reproduction can accelerate production efficiency and lower feed cost.Therefore,the application of RFI in large-scale breeding can improve the management level of ranching and provide significantly economic benefits.

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