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남은 음식물 사료가 육성 비육돈의 성장과 도체특성에 미치는 영향
정일병,김동훈,문홍길,배인휴,남병섭,김영화,허상만,양철주 한국동물자원과학회 2000 한국축산학회지 Vol.42 No.3
This study was conducted to investigate the effect of feeding RFW (recycled food waste) on performance in growing-finishing pigs. Four treatments with 3 RFW levels were tried in this study; 0% PT (pellet containing 0% RFW), 30% MT (mash containing 30% RFW), 30% PT (pellet containing 30% RFW) and 50% PT (pellet containing 50% RFW). For feeding trials, 60 heads of cross-bred barrows (Duroc x Landrace: average live weight 30 ㎏) were employed to 4 treatments with s replicates of 3 pigs each. For metabolic trials, 12 cross-bred barrows (average live weight 68 ㎏) were used with 3 replicates. The results obtained are as followings; ADG of 50% PT was significantly (P $lt; 0.05) lower than 0% PT and 30% PT, but 30% MT and 30% PT were not significantly different from 0% PT. In F/G ratio, 2.97 of 30% PT was not (P $gt; 0.05) significantly different from 2.85 of 0% PT treatment. Dressing percentage and back fat thickness were not significantly different among treatment. Addition of RFW increased appearance rate of carcass grade A or B. Nutrient digestibility was decreased by increasing RFW levels. The 30% PT was not significantly different from 0% PT in both DE and digestibility of crude fat and crude fiber, but significantly less in digestibility of crude protein and crude ash (P $lt; 0.05). Economic analysis based on feed cost per weight gain showed that pelleting feed with food waste 30% was the most economical.
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.