猪饲料利用效率的研究进展

发布时间：2018-04-25 10:42

本文选题：猪 + 饲料利用效率　；参考：《中国农业大学学报》2016年04期

【摘要】：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。
[Abstract]:In order to use scientific indexes to select pig breeds with high feed utilization efficiency and good comprehensive production capacity, and to solve the problem of increasing feed cost, the evolution process of feed utilization efficiency index was studied. The results show that the residual feed intake is the ideal index to measure the feed use efficiency at present, the relationship between the feed efficiency index and pig growth and meat quality is close, the factors that affect the feed use efficiency include: feeding, activity, and so on. However, through the studies of genomics and molecular genetics related to feed utilization efficiency, it was found that the research results of candidate genes for this trait were few and not uniform. These results indicate that the improvement of residual feed intake traits can promote the growth and meat quality of pigs, and it is related to various growth and metabolic functions of the body, but the molecular mechanism of its genetic action is not clear. It can be regarded as the focus of future research.
【作者单位】：中国农业科学院北京畜牧兽医研究所;河南雏鹰农牧集团股份有限公司研究院;
【基金】：中国农业科学院科技创新工程ASTIP-IAS02
【分类号】：S828

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