http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
조각자(주엽) 나무의 생리활성물질 Gleditschia이 비육돈육의 이화학적 성상에 미치는 영향
서종립,허정호,정명호,조명희,이국천,김국헌,하대식,류재두,김충희,김곤섭,김의경,김종수,Seo, Jong-Lip,Heo, Jung-Ho,Jung, Myung-Ho,Cho, Myung-Heui,Lee, Kuk-Cheon,Kim, Kuk-Hun,Hah, Dae-Shik,Ryu, Jae-Doo,Kim, Chung-Hui,Kim, Gon-Sup,Kim, Eui-Gy 대한수의학회 2005 大韓獸醫學會誌 Vol.45 No.4
The effects of dietary Gleditschia on fatty acid composition, lipid oxidation, and pork quality were investigated. Pigs (n=40) were fed a diet containing 0, 0.1, 0.2, 0.4, and 1% Gleditschia for 14 weeks and slaughtered at 110 kg average. The longissimus throracis et lumborum muscle was collected at 24 hr postmortem. Pork loin chops (3 cm thick) were packaged aerobically and stored at $4^{\circ}C$ for 7 days. Samples were analyzed for fatty acid composition, ultimate pH, thiobarbituric acid-reactive substance (TBARS), color ($L^*$, $a^*$, $b^*$), drip loss and water-holding capacity. There was no significant difference of moisture and crude fat percent in between treatment and control group, and the color stability of pork loin better in all treat groups was more improved during cold storage. The change of pH was significantly increased (p<0.05) in 0.2, 0.4, 1% treatment groups compare to the control group. Water-holding capacity of pig loins was significantly higher (p<0.05) in all treat groups than in control group; 0.2% treat group was the highest in the water holding capacity followed by 0.4, 1, and 0.1% treat groups. Less drip loss of pig loin was observed with samples from Gleditschia-fed pigs except 1% treat group. Unsaturated fatty acid were tend to be decreased and saturated fatty acid were tend to be increased in Gleditschia-treated group. Thiobarbituric acid-reactive substance value of control was significantly higher than that of the Gleditschia-fed group (p<0.05).
T-2 toxin을 투여한 닭에서 Comet assay 방법을 이용한 DNA 손상 평가와 독성
하대식(Dae Sik Hah),허정호(Jung Ho Heo),이국천(Kuk Cheon Lee),조명희(Myung Heui Cho),김국헌(Kuk Hun Kim),김충희(Chung Hui Kim),류재두(Jae Du Lue),이승환(Seung Hwan Lee),김곤섭(Gon Sup Kim),김의경(Eui Gyung Kim),김종수(Jong Shu Kim) 한국독성학회 2006 Toxicological Research Vol.22 No.2
This study was designed to evaluate the possible DNA damaging effects of T-2 toxin using an alkaline single cell gel electrophoresis (SCGE) comet assay and also to investigate toxic effects in chickens. A total of 20 chickens were used in these experiments. Graded concentrations of dietary T-2 toxin (0, 4, 8, and 16 ㎍/g of diet) were given to groups of 5 broiler chickens. In comet assay, The DNA damage was analysed by the tail extent moment (TEM) and tail length (TL), which were used as markers of DNA strand breaks in SCGE. A significant dose-dependent increase in the extent of DNA migration as well as in the percentage of cells with tails was observed after treatment with T-2 toxin (P<0.05). Treatment with the low T-2 toxin (4 μ/g of diet) induced a relatively low level of DNA damage in comparison with the high T-2 toxin (16 μ/g of diet) group. The growth rate was significantly reduced by concentrations of 8, and 16 μ/g of diet (P < 0.05). The feed conversion ratio were significantly affected by any concentrations (P < 0.05). The relative weight of the spleen, and lung was decreased by the growth inhibitory concentrations. The bursa of Fabricius, thymus, and kidney were decreased in relative weight by concentrations of 16 μ/g of diet. The relative weight of the liver and heart were unaffected. The hemoglobin (Hb), hematocrit (HCT), and mean corpuscular hemoglobin (MCH) were decreased at concentration of 16 μ/g of diet. As compared with control chickens, there was no marked change in serum components except uric acid in T-2 treated chickens. All lymphoid tissues retained atrophic and lymphoid cell depletion throughout the three weeks trial.
허정호 ( Jung Ho Heo ),이국천 ( Kuk Cheon Lee ),조명희 ( Myung Heui Cho ),김국헌 ( Kuk Hun Kim ),하대식 ( Dae Sik Hah ),김종수 ( Jong Shu Kim ) 한국가축위생학회 2006 韓國家畜衛生學會誌 Vol.29 No.3
To investigate serum antibody titers of Newcastle disease(ND) virus, serum samples were collected from 19,774 slaughtered chickens from 862 farms in Geoje, Goseong, Tongyung and other province during the period from January 2001 to December 2005. The results obtained are summarized as follows; 1. The negative percentage of ND antibody titer with below 1.0 levels decreased from 46.7% in 2001 to 40.5% in 2004 but those of it increased to 47.0% in 2005 and the positive percentage of ND antibody titer with higher 5 levels increased from 15.8% in 2001 to 26.2% in 2005. 2. The season levels of ND antibody titer showed various levels according to seasons but the general trend of ND antibody titer decreased in the later half of the year than those of the first half of the year. 3. The negative percentage of ND antibody titer on provinces decreased from 52.0%(2001) to 36.2%(2004) in Goseong but those of it increased to 51.4% in 2005. The negative percentage of ND antibody titer of Tongyung and other provinces increased from 51.0%, 28.5%(2001) to 55.0% and 44.3%(2005), respectively. 4. The year average levels of ND antibody titer increased from 2.2 to 2.6 during 2001-2004 but those of it decreased to 2.4 in 2005. The provinces average levels of ND antibody titer increased from 2.0 to 2.8 during 2001-2005 and others provinces except Gyeongnam decreased from 3.3 to 2.6 during the 2001-2005. 5. The farm average levels of ND antibody titer with below 1.0 levels decreased from 26.3% in 2001 to 10.2% in 2004 but those of it increased to 17.6% in 2005 and those of below 1.0 or 2.0 levels increased from 17.9%(2001) to 27.7%(2005). The protective levels of ND antibody titer with higher 5.0 levels increased from 2.1% in 2001 to 8.8% in 2005.
항구포자충제제의 사용 여부에 따른 구포자충 감염실태 조사
허정호 ( Jung Ho Heo ),정명호 ( Myung Ho Jung ),김국헌 ( Kuk Hun Kim ),조명희 ( Myung Heui Cho ),이국천 ( Kuk Cheon Lee ),서종립 ( Jong Lip Seo ),김충희 ( Chung Hui Kim ),하대식 ( Dae Sik Hah ),류재두 ( Jae Doo Ryu ),김곤섭 ( Gon 한국가축위생학회 2005 韓國家畜衛生學會誌 Vol.28 No.3
The present study was conducted to investigate the prevalence of Eimeria infection according to anti-coccidiosis drugs treatment in 1,300 slaughtered chickens from 130 farms in Gyeongnam, Jeonnam, Jeonbuk, Gyeongbuk and Chungnam during the period from October 2002 to August 2003. The prevalence of Eimeria infection by drug administration for treatment and prevention or non-administration was shown 71.4%, 82.6% and 72.3%, respectively, and so infection rate of chicken farms was similar independent on drug administration or not. The prevalence of Oocysts infection level of chicken farms by administrated drug for treatment was shown lower (25.3%) than for prevention (35.4%) and non-treatment (36.2%). The prevalence of Oocysts infection level by drug administration under 2 days for treatment was shown higher infection rate (32.2%) than over 3 days (20%) and also under 2 days for prevention has similar tendency of that of treatment and so, it was conclusion that administration of drug over 3 days has the effect for treatment and prevention of Eimeria infection. The prevalence of Oocysts infection level by age for prevention has various level from 48.8% to 22.9% but on 22~25 days was shown the most higher ratio (48.8%) and on 19∼21 days was shown the lowest rate (22.9%) among the all age groups.