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Escherichia coil phytase의 첨가가 비육돈의 생산성, 도체특성 및 분 내 구리와 아연 함량에 미치는 영향
김영화 ( Y. H. Kim ),신승오 ( S. O. Shin ),박준철 ( J. C. Park ),정현정 ( H. J. Jung ),조진호 ( J. H. Cho ),진영걸 ( Y. J. Chen ),유종상 ( J. S. Yoo ),문홍길 ( H. G. Moon ),지상윤 ( S. Y. Ji ),김인철 ( I. C. Kim ),이상진 ( S. J. Lee 한국동물자원과학회 2008 한국축산학회지 Vol.50 No.1
7일령 조기 이유자돈에 대한 액상사료 자동급이기 이용효과
유용희,정일병,장병귀,문홍길,김태일,한정대,박홍석 한국동물자원과학회 2003 한국축산학회지 Vol.45 No.6
This study was conducted to test the efficacy of the automatic liquid feeder(designated as NLRI) developed by National Livestock Research Institute, Korea foe 7-day old early-weaning piglets. The other automatic liquid feeder imported from USA(designated as IALF) was used for a comparative purpose. A total of sixty piglets of 7 days of age were allotted to three treatments. The control group of 20 piglets was raised by their own sows until 21 days of age, while others were shifted to automatic liquid feeders of either NLRI or IALF on 7 days of age and reared during 14 days post-weaning. After then, all the piglets were fed nutritionally identical mash diets until 70 days of age. Compared with control group, body weight of piglets reared on automatic liquid feeders were lighter(P<0.05) at 21 days of age [5.55㎏ (control) vs 4.97 (NLRI) and 4.98㎏ (LALF)], while heavier(p<0.05 at 70days of age(24.82㎏ vs 30.17 and 29.42㎏). The results indicated that pigs reared on liquid feeding showed higher(P<0.05) average daily gain than control pigs during the whole experimental period [346.7㎏ (control) vs 425.8 (NLRI) and 416.1g (LALD)], while no difference was found in feed/gain (1.67 vs 1.78 and 1.84). There was no difference in growth performance and incidence of diarrhea between two automatic liquid feeders, NLRI and LALF. Compared with control group, intestinal villi tended to be shorter in liquid feeding group during the first week, but were recovered within two weeks. The results suggest that the automatic liquid feeder newly developed by National Livestock Research Institute, Korea can be successfully used for rearing young piglets weaned at very early age.