Abstract: The aims of the present study were to assess the effects of dietary replacing corn with Lilium brownii residue on production performance of three-way crossbred （′Duroc×Landrace×Yorkshire′） weaned piglets, and to determine its proper addition ratio in the diet. A total of 36 （′Duroc×Landrace×Yorkshire′） three-way crossbred weaned piglets weighed （20.14±0.78） kg with good health status were selected and randomly divided into 4 groups with 3 replicates in each group and 3 piglets in each replicate. Lilium brownii residue were used to replace 0 （control group）, 5.00% （experimental groupⅠ）, 10.00% （experimental groupⅡ）, and 15.00% （experimental group Ⅲ) of corn in the diet. The pre-experiment period was 7 d and the formal trial period was 30 d. After the experiment, the production performance of the weaned piglets was measured. The results showed that there was no significant difference in the initial weight between the four groups （P>0.05）. At the end of the experiment, the average weights of the experimental groupⅠ, experimental groupⅡand control group were 42.08, 38.42 and 39.39 kg, respectively, which were 6.67, 3.01 and 3.98 kg higher than that of the experimental group Ⅲ, respectively. The average daily weight gain of the control group and experimental groupⅠwas 646.47 and 728.24 g/d, respectively, and both of them was significantly （P<0.05）higher than that of the experimental groupⅡand Ⅲ. The feed intake of the experimental group Ⅲ was significantly （P<0.05） lower than that of the control group and experimental groupⅠ, while no significant difference between the other groups was observed （P>0.05）. In terms of the feed to gain ratio, the experimental groupⅠwas significantly （P<0.05） lower than that of the other three groups. The control group and experimental groupⅠseparately had only one piglet developed diarrhea and both of them were healed after treatment. There was no diarrhea in the experimental groupⅡand Ⅲ. No piglets died in each group.

Key words: Lilium brownii residue, weaned piglets, production performance