猪饲料利用效率的研究进展

为利用科学的指标选育出饲料利用效率高并且综合生产能力好的猪品种,从而解决饲料成本增加的问题,对饲料利用效率指标的演进历程进行研究。研究显示:剩余采食量性状为目前衡量饲料利用效率的理想指标;饲料利用效率指标与猪生长和肉质特性之间关系紧密;影响饲料利用效率的因素很多包括:摄食、活动、消化和代谢等生物学因素;但是通过饲料利用效率相关基因组学和分子遗传学研究,发现此性状的候选基因的研究结果比较少且并不统一。这些研究结果表明剩余采食量性状的改良对猪的生长和肉质等具有促进作用,它跟机体的各种生长和代谢机能相关,但其遗传作用的分子机制并不清楚,可作为今后研究的重点。

Current progress in feed utilization efficiency of pig

Using scientific indicator that has high feed efficiency and good production capacity of pig is needed urgently to solve the problem of increase in feed costs.So in this study, we researched the revolution of feed utilization efficiency, and found that the trait of residual feed intake is the most ideal indicator measuring feed utilization efficiency.And we also discovered that there is a close relationship between growth characteristic and meat quality.There are several biological influence factors in feed utilization efficiency, such as ingestion, activity, digestion, and metabolism.In the research of genomics and molecular genetics analysis on feed efficient, we found that there are a few candidate genes involved in feed efficient and the conclusion have not been consistent.These survey results indicate that to improve residual feed intake could promote growth and the meat quality of pig and it has the close relationship with body''s growth and metabolic capacity, but the molecular genetics mechanism is still unclear, could to be further emphasis research.