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http://dx.doi.org/10.5187/JAST.2003.45.6.1079

Studies on the Efficacy of the Newly Developed Automatic Liquid Feeder for 7-day Old Early Weaned Piglets  

Yoo, Y.H. (National Livestock Research Institute, RDA)
Chung, I.B. (National Livestock Research Institute, RDA)
Jang, B.G. (National Livestock Research Institute, RDA)
Moon, H.K. (National Livestock Research Institute, RDA)
Kim, T.I. (National Livestock Research Institute, RDA)
Han, J.D. (National Livestock Research Institute, RDA)
Park, H.S. (Chonbuk National University)
Publication Information
Journal of Animal Science and Technology / v.45, no.6, 2003 , pp. 1079-1088 More about this Journal
Abstract
This study was conducted to test the efficacy of the automatic liquid feeder(designated as NLRI) developed by National Livestock Research Institute, Korea for 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 [5.55kg (control) vs 4.97 (NLRI) and 4.98kg (IALF)], while heavier(P〈0.05) at 70 days of age(24.82kg vs 30.17 and 29.42kg). 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 [346.7g (control) vs 425.8 (NLRI) and 416.1g (IALF)], 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 IALF. 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.
Keywords
Automatic liquid feeder; Early weaned piglet; Growth performance; Villi height;
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