Abstract: The experiment aims to investigate the effects of adding 2% rosemary residue to the diet on reproductive performance including piglet birth weight and live birth rate in pregnant sows. Using a completely randomized experimental design，a total of 60 Large White × Landrace sows with consistent breed，parity，similar physical condition，and good health were selected for mating. They were divided into two treatment groups，the control group and the experimental group，with 30 sows in each group and one pig in each replicate. The average fat score of the two groups of sows was not significantly different（P>0.05）. The control group of pregnant sows were fed a basic diet，while the experimental group was added 2% rosemary residue as a substitute for beet meal on the basic diet. The experiment lasted for 114 days. The results showed that using 2% rosemary residue in the diet of pregnant sows had no adverse effects on their reproductive performance and significantly reduce feed costs.

Key words: Rosemary residue, Pregnant sows, Reproductive performance, Feed cost

摘要： 该试验旨在研究在日粮中添加2%迷迭香残渣对妊娠母猪产程、仔猪初生重、活仔率 等相关繁殖性能的影响。采用完全随机试验设计，选取品种一致、胎次一致、体况相近及健康 状况良好的“大长二元”待配母猪共计60头，分为2个处理组，即对照组与试验组，各处理30 头母猪，每个重复1头猪。采取膘情评分进行测定，两组母猪的平均膘情评分无显著差异（P> 0.05）。对照组妊娠母猪饲喂基础日粮，试验组在基础日粮上添加2%迷迭香残渣等量替代甜菜 粕，试验进行114 d。结果表明，在妊娠母猪日粮中用2%迷迭香残渣替代其它原料对母猪的繁 殖性能无不良影响，并显著降低饲料成本。

关键词: 迷迭香残渣, 妊娠母猪, 繁殖性能, 饲料成本