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입질사료가 조기이유 자돈의 이유후 성장능력에 미치는 영향
손광수,챨스맥스웰 한국축산학회 1995 한국축산학회지 Vol.37 No.1
A study involving 144 pigs weaned at approximately 24 days of age was conducted to determine the effect of creep feeding on postweaning performance in early weaned pigs. Pigs from litters offered creep feed for one week prior to weaning and pigs from litters not offered creep feed were blocked by weight into two groups(heavy and light weight) and fed a common prestarter diet for the first two week period(Period 1) and a common starter diet from day 15 to 35 postweaning(Period 2). During week 1 and for Period 1, average daily gain was similar between heavy pigs from both the creep fed and non-creep fed groups but average daily gain of light weight pigs was greater in pigs previously fed creep feed. Average daily gain was similar for all pigs during week 2. During week 1 average daily feed intake was similar for heavy pigs and for light pigs between treatments. During week 1 and for Period 1, smaller pigs previously fed creep feed had improved feed efficiency when compared to those not offered creep, however, feed efficiency of heavy weight pigs was similar between the two groups. During Period 2 average daily gain and average daily feed intake of heavy pigs were improved in the creep fed group when compared to non-creep fed group. Feed efficiency during Period 2 was similar between the two treatment. This study suggests that creep feeding influences subsequent performance of early weaned pigs.