Results of the experiment showed: 1) there was no significant difference on average daily gain (ADG) and feed:gain ratio (F:G) among the MP, SP and RP groups (P > 0.05), whereas the ADG and F:G of the WP and PP groups were significantly lower compared with the MP group (P < 0.05); 2) there was not a significant difference in withers height, body length and heart girth among treatment groups compared with the MP group (P > 0.05).