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http://dx.doi.org/10.5187/JAST.2011.53.4.333

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

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)
Publication Information
Journal of Animal Science and Technology / v.53, no.4, 2011 , pp. 333-339 More about this Journal
Abstract
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.
Keywords
Pig; Growth; Milk replacer; Creep feed; Wean;
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