• Feed Journal
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• v.2 no.4
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• pp.92-96
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• 2004

최근 양돈장에서 가장 크게 우려하고 피해가 큰 질병은 육성 비육돈에서의 호흡기 질병과 자돈 설사라는 것은 양돈인이라면 모두 공감하는 바이다. 자돈의 설사는 불합리한 양돈장 시설 환경과 차단 방역의 미흡으로 자주 발생하는 바이러스성 설사와 함께 부적절한 사양관리로 인해 발생하는 자돈 설사도 흔하게 볼 수 있다.<중략>

• Feed Journal
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• v.3 no.4 s.20
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• pp.112-115
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• 2005

지금 우리가 고민해 보아야 하는 것은 여름 출하를 앞둔 자돈에게 무엇을 어떻게 줄 것인가 이다. 우선은 자돈의 성장율을 급격하게 감소시키는 소모성 질병에 감염되지 않도록 습도 관리가 매우 중요하며, 또한 이유 스트레스에 따른 이유 후 성장정체 현상을 최소화하기 위하여 소화율이 높은 원료가 사용된 사료 급여가 필수적이라 할 수 있다.

• Journal of Animal Science and Technology
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• v.51 no.1
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• pp.25-32
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• 2009

This study was conducted to determine the effects of probiotics supplementation on growth performance, nutrient digestibility, occurrence of diarrhea and immune response in weaning pigs. Treatments were 1) NC (basal diet), 2) PC (basal diet + 0.12% avilamycin) and 3) A (basal diet + 0.2% Aspergillus oryzae), 4) B (basal diet + 0.2% Lactobacillus casei), 5) C (basal diet + 0.2% Bacillus subtilis), 6) D (basal diet + 0.2% Lactobacillus crispatus). A total of 120 pigs ($7.16\pm0.01$ kg average body weight, weaned at $23\pm3$days of age) were assigned to 6 treatments, 5 replicates and 4 pigs per pen in a randomized complete block (RCB) design. During the whole experimental period, body weight (P<0.01), average daily gain (ADG; P<0.01), and average daily feed intake (ADFI; P<0.05) of treatment PC were higher than other treatments. However, the probiotics treatments tended to increase ADG and G:F ratio compared to treatment NC. The G:F ratio in treatment A (Aspergillus oryzae) was similar to treatment PC during the whole experimental period (P<0.05). The supplementation of probiotics in the diet of weaning pig did not change nutrient digestibility (dry matter, crude protein, crude fat and ash) and nitrogen retention of weaning pigs. In blood urea nitrogen (BUN) concentration, treatment B had lower value than other treatments at 2 and 4 weeks (P<0.05). Treatments PC and C tended to decrease diarrhea score than other treatments (P=0.18). At 3h after lipopolysaccharide (LPS) injection, treatments NC and PC had higher count of $CD^{4+}$ T-cells than probiotics treatments, and treatment C showed the lowest value (P<0.01). There were no differences on count of $CD^{8+}$ T-cells and $CD^{4+}:CD^{8+}$ ratio among all treatments (P>0.10). These results suggest that the dietary probiotics are likely able to improve the growth performance, occurrence of diarrhea and immune response although they do not have similar effects like antibiotics in weaning pigs.

• Journal of the korean veterinary medical association
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• v.34 no.8
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• pp.566-569
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• 1998

병원성대장균에 의한 자돈의 대장균증 중 대표적인 것이 신생 및 포유자돈에서 주로 발생하는 설사병과 이유자돈의 부종병을 들 수 있다. 이러한 자돈의 대장균증은 돼지유행성설사병(PED)이나 전염성위장병(TGE)처럼 폭발적인 발생을 하지는 않지만 지역이나 계절에 관계없이 광범위하게 지속적으로 발생하고 있기 때문에 전체적인 피해는 오히려 폐사율은 높으나 주기적이고 산발적인 발생을 하는 바이러스성 설사병보다도 많을 것으로 추정된다. 이러한 자돈의 대장균설사증 대책으로 몇종의 백신이 사용되고 있으나 완벽한 장관면역을 형성시켜주는 예방약은 아직 세계적으로도 개발되어 있지 않은 실정이고, 치료대책으로 사용하고 있는 항생제도 내성균 확산으로 치료제 사용이 한계에 이르고 있다. 더욱이 부종병의 경우 치료 및 예방대책이 없어 양돈농가로서는 속수무책인 실정이다. 수의과학연구소에서는 이러한 문제점을 해결하기 위하여 대장균증을 동시에 치료, 예방할 수 있는 병원성대장균에 대한 난황항체를 개발하여 실험실 및 야외적용시험을 실시한 결과 대장균설사증은 물론 부종병치료에도 탁월한 효과를 나타내었기에 소개드리고자 한다.

• The Korea Swine Journal
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• v.18 no.12 s.208
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• pp.110-114
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• 1996

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.9
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• pp.255-261
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• 2019

This trial was conducted to determine the optimal supplementation level of Hermetia illucens (HI) on the growth performance, the apparent total tract retention of nutrients and the economic efficiency in weaning pigs. A total of 192 weaned pigs ($Landrace{\times}Yorkshire{\times}Duroc$; $6.51{\pm}0.15kg$) were randomly allotted to 4 treatments and 6 replicates on the basis of their initial body weight. The dietary treatments included a corn-soybean meal based diet supplemented with 0, 1, 2 or 3% HI. There were no significantly effects between the treatments in phases I, II and overall. But average daily gain was significant and linearly increased when HI was added to the diet in the overall group. Although digestibility of dry matter (DM) was increased by adding HI, digestibility responses were not observed by supplying HI in phase I. Also, all the parameters of economic efficiency were not significantly different according to the level of HI. The results showed that HI had beneficial effects on growth performance and digestibility of dry matter. However, there were no effects on economic efficiency by using HI in weaning pig diets.

• Journal of Animal Science and Technology
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• v.45 no.6
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• pp.1079-1088
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• 2003

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.

• Journal of Animal Science and Technology
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• v.47 no.4
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• pp.501-512
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• 2005

In Exp. 1, a total of forty eight multiparous sows were used in a 21-d performance assay. All litters were standardized at eleven piglets within 24h of parturition. Sows were fed one of the four experimental diets 1) CON(basal diet; Control), 2) MP1(basal diet added 0.05% of medicinal plant mixtures), 3) MP2 (basal diet added 0.1% of medicinal plant mixtures) and 4) MP3(basal diet added 0.2% of medicinal plant mixtures). Backfat thickness difference from farrowing to weaning was tended to increase in CON treatment compared to those of medicinal plants mixture(MP) treatments. However, there were not significant differences among the treatments(P>0.05). Sow’s ADFI was increased in sows fed MP2 treatment compared to MP3 treatment(P<0.05). Piglet weight gain was tended to increase in MP1 treatment compared to CON treatment(P<0.05). The glucose concentration of MP3 treatment was higher that of CON treatment(P<0.05). Exp. 2, a total of one hundred twenty weaning pigs ($L{\time}Y{\time}D$, 4.70$\pm$0.63kg average initial body weight) were used in a 20-d performance assay. Weanling pigs were fed treatments diets included 1) CON(basal diet; Control), 2) MP0.05(basal diet added 0.05% of medicinal plant mixtures), 3) MP0.1(basal diet added 0.1% of medicinal plant mixtures) and 4) MP0.15(basal diet added 0.15% of medicinal plant mixtures). Through entire experimental period, as MP increased in the diets, there was an increase in ADG(linear, P<0.067), improvement gain/feed(linear, P<0.018) and a decrease in ADFI (linear, P<0.008). DM digestibility was significantly increased with addition of MP(linear, P<0.004; quadratic, P<0.030). In conclusion, sows fed MP2 had showed less body weight loss and increased weight gain for suckling piglet. In weaning pigs, as supplementation MP from 0.05 to 0.1% in diet had improved growth performance and DM digestibility.

• The Korea Swine Journal
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• v.26 no.9 s.301
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• pp.138-142
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• 2004

• The Korea Swine Journal
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• v.26 no.9 s.301
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• pp.106-109
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• 2004