Effects of Creep Feed and Milk Replacer and Nursery Phase-feeding Programs on Pre- and Post-weaning Growth of Pigs

돼지에서 입붙이 사료와 대용유 급여 및 이유자돈 사양프로그램이 이유 전과 이유 후의 성장에 미치는 영향

  • Ha, Duck-Min (Regional Animal Industry Center, Gyeongnam National University of Science and Technology) ;
  • Jang, Kyoung-Soon (Regional Animal Industry Center, Gyeongnam National University of Science and Technology) ;
  • Won, Hye-Sook (Regional Animal Industry Center, Gyeongnam National University of Science and Technology) ;
  • Ha, Seung-Ho (Pusan and Kyungnam Cooperative Swine Farms Association) ;
  • Park, Man-Jong (Regional Animal Industry Center, Gyeongnam National University of Science and Technology) ;
  • Kim, Sung-Woo (Department of Animal Science, North Carolina State University) ;
  • Lee, C.-Young (Regional Animal Industry Center, Gyeongnam National University of Science and Technology)
  • 하덕민 (경남과학기술대학교 동물생명산업센터) ;
  • 장경순 (경남과학기술대학교 동물생명산업센터) ;
  • 원혜숙 (경남과학기술대학교 동물생명산업센터) ;
  • 하승호 (부경양돈농협) ;
  • 박만종 (경남과학기술대학교 동물생명산업센터) ;
  • 김성우 ;
  • 이철영 (경남과학기술대학교 동물생명산업센터)
  • Received : 2011.03.03
  • Accepted : 2011.08.11
  • Published : 2011.08.31


The present study was performed to investigate the effects of pre- and post-weaning feeding programs on growth of pigs. A total of 24 litters (avg. 10.6 piglets/litter) born from multiparous (Yorkshire ${\times}$ Landrace) dams ${\times}$ Duroc sires were provided with neither creep feed (CF) nor milk replacer ("CON"), 200 gm CF/litter/d from the 15th day of lactation ("MIN"), or CF and milk replacer ad libitum for 7 h during the daytime from the 7th day ("MAX") through weaning at d 21 of age. Sixty-eight weanling pigs selected randomly from each of CON and MIN were provided with phases 1, 2 and 3 nursery diets for 7, 14, and 13 days, respectively, in two pens; an equal number of piglets from MAX received the same diets for 6, 10, and 18 days, respectively. Subsequently, all pigs were fed grower 1 and 2 diets sequentially up to d 95 and 135, respectively. The entire pre- and post-weaning feeding trial was repeated three times under a split-plot design of experiment. Initial and final weights and ADG of the suckling pigs did not differ between MAX/MIN and CON. However, final wt of MAX adjusted for initial wt, which was 0.17-kg less in MAX than in CON, was greater than that of CON by 0.31kg, whereas the difference between MIN and CON in final wt barely changed after the adjustment. Growth of the animals during the nursery and growing phases was not affected by the feeding program, whereas d 55 and 135 BW, as well as d 6 BW, were highly correlated with weaning weight (r=0.81, 0.57, and 0.76; P<0.001, <0.05, and <0.001, respectively). In conclusion, results suggest that provision of creep feed and milk replacer from early lactation may be effective for increasing weight gain of light piglets, but that limited provision of creep feed during late lactation or extension of the duration of phases 1 and 2 vs. 3 nursery diets for several days is unlikely to influence the growth of pigs during the corresponding and subsequent periods.


Pig;Growth;Milk replacer;Creep feed;Wean


Supported by : 태원농장


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