辽宁省商品猪饲料粗蛋白水平调查与分析

Survey and analysis crude protein level of commercial pig feed in Liaoning Province

研究旨在从整体上把握辽宁省各阶段猪饲料的粗蛋白水平,为低蛋白日粮在辽宁省的推广应用提供参考。调查收集来自辽宁省内的猪配合饲料和浓缩饲料样品共468个,用于检测粗蛋白水平。结果显示:断奶猪、保育猪、仔猪、生长猪、育肥猪、妊娠母猪和哺乳母猪配合饲料的平均粗蛋白水平分别为18.86%、18.06%、16.08%、15.75%、15.10%、14.08%和17.12%。保育猪、仔猪、生长猪、育肥猪、妊娠母猪和哺乳母猪浓缩饲料的粗蛋白含量,折算为配合饲料的粗蛋白水平分别为18.47%、16.39%、15.54%、15.06%、14.25%和16.37%。研究表明,辽宁省内的猪用商品饲料的平均粗蛋白水平略高于《仔猪、生长育肥猪配合饲料》国家推荐标准;但随着饲料营养研究深入以及低蛋白日粮配方理念推广,猪饲料的粗蛋白水平仍有继续下降的空间与潜力。

The purpose of the study was to grasp the crude protein level of pig feed at different stages in Liaoning Province as a whole, and to provide reference for the popularization and application of low protein diet in Liaoning Province. A total of 468 pig compound feed and concentrated feed samples from Liaoning Province were collected for the detection of crude protein level. The results showed that the average crude protein levels of weaned pigs, nursery pigs, piglets, growing pigs,finishing pigs, pregnant sows and lactating sows were 18.86%, 18.06%, 16.08%, 15.75%, 15.10%, 14.08% and 17.12%,respectively. The crude protein content of concentrate feed of nursery pigs, piglets, growing pigs, finishing pigs, pregnant sows and lactating sows was 18.47%, 16.39%, 15.54%, 15.06%, 14.25% and 16.37% when converted into compound feed,respectively. The study indicates that the average crude protein level of commercial feed for pigs in Liaoning Province was slightly higher than the national recommended standard of ‘Piglets and growing-finishing Pigs Compound feed’.However, with the further study on feed nutrition and the promotion of the concept of low protein diet, the crude protein level of pig feed still has the space and potential to continue to decline.