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Na, Youngjun,Li, Dong Hua,Choi, Yongjun,Kim, Kyoung Hoon,Lee, Sang Rak Asian Australasian Association of Animal Productio 2018 Animal Bioscience Vol.31 No.8
Objective: Two experiments were conducted to determine the effects of feeding level on nutrient digestibility and enteric methane ($CH_4$) emissions in growing goats and Sika deer. Methods: Three growing male goats (initial body weight [BW] of $22.4{\pm}0.9kg$) and three growing male deer (initial BW of $20.2{\pm}4.8kg$) were each allotted to a respiration-metabolism chamber for an adaptation period of 7 d and a data collection period of 3 d. An experimental diet was offered to each animal at one of three feeding levels (1.5%, 2.0%, and 2.5% of BW) in a $3{\times}3$ Latin square design. The chambers were used for measuring enteric $CH_4$ emission. Results: Nutrient digestibility decreased linearly in goats as feeding level increased, whereas Sika deer digestibility was not affected by feeding level. The enteric production of $CH_4$ expressed as g/kg dry matter intake (DMI), g/kg organic matter intake, and % of gross energy intake decreased linearly with increased feeding level in goats; however, that of Sika deer was not affected by feeding level. Six equations were estimated for predicting the enteric $CH_4$ emission from goats and Sika deer. For goat, equation 1 was found to be of the highest accuracy: $CH_4(g/d)=6.2({\pm}14.1)+10.2({\pm}7.01){\times}DMI(kg/d)+0.0048({\pm}0.0275){\times}dry$ matter digestibility (DMD, g/kg)-0.0070 (${\pm}0.0187$)${\times}$neutral detergent fiber digestibility (NDFD; g/kg). For Sika deer, equation 4 was found to be of the highest accuracy: $CH_4(g/d)=-13.0({\pm}30.8)+29.4({\pm}3.93){\times}DMI(kg/d)+0.046(0.094){\times}DMD(g/kg)-0.0363({\pm}0.0636){\times}NDFD(g/kg)$. Conclusion: Increasing the feeding level increased $CH_4$ production in both goats and Sika deer, and predictive models of enteric $CH_4$ production by goats and Sika deer were estimated.
나영준(NA YOUNGJUN),심형수(SIM HYUNGSOO),김진수(KIM JINSOO),황규섭(HWANG GYUSUB),이기배(LEE KIBAE),주승문(JOO SEUNGMOON),이광훈(LEE KWANGHOON) 대한인터벤션영상기술학회 2019 대한인터벤션영상기술학회지 Vol.22 No.1
목적 : 복부 대동맥류(Abdomen Aorta Aneurysm; AAA)를 치료하는 EVAR (EndoVascular Aneurysm Repair)는 환자에게 효과적이고 안전하며 최소 침습적인 치료법이나 제한적인 적응증(Indication)으로 인하여 모든 AAA 환자들에게 적용 가능한 시술은 아니다. Type Ia Endoleak의 원인이 되는 제한적인 Hostile neck Anatomy에 대한 적응증을 어느 정도 극복하게 해주는 EndoAnchor System을 이용한 EVAR 환자의 Case의 성공한 사례를 소개하고 그 유용성에 대해 보고 하고자 한다. Endovascular aneurysm repair (EVAR) is an effective, safe, and minimally invasive treatment for abdominal aortic aneurysms (AAA). However, It is not applicable procedure for all AAA patients because of limited indications. We report a successful case of EVAR patient using EndoAnchor System which can overcome indications for limited hostile neck anatomy causing Type Ia endoleak and report its usefulness.
Lee, Youngjun,Na, Sangcheol,Lee, Sanghee,Jeon, Noo Li,Park, Seung Bum The Royal Society of Chemistry 2013 Molecular bioSystems Vol.9 No.5
<P>We synthesized a series of Seoul-Fluor-based lipid droplet bioprobes with a linear range of lipophilicity and identified SF44 and SF58 as SF-based LD bioprobes in microalgae for biofuel research as well as in mammalian cells. Unlike Nile Red, SF-based bioprobes can stain algal LDs with excellent efficiency under the non-invasive and non-cytotoxic conditions.</P> <P>Graphic Abstract</P><P>Seoul-Fluor-based bioprobes can visualize lipid droplets in a non-invasive manner without washing in microalgae for the application in bio-fuel study. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c2mb25479d'> </P>
최용준,임종수,Youngjun Na,이상락 아세아·태평양축산학회 2018 Animal Bioscience Vol.31 No.3
Objective: The objective of the study was to determine the effect of fermented spent coffee ground (FSCG) on nutrient digestibility and nitrogen utilization in sheep. Methods: Fermentation of spent coffee ground (SCG) was conducted using Lactobacillus plantrum. Fermentation was performed at moisture content of 70% and temperature of 39°C with anaerobic air tension for 48 h. Four adult rams (initial body weight = 56.8±0.4 kg) were housed in a respiration-metabolism chamber and the treatments were: i) control (Basal diet; 0% SCG or FSCG), ii) 10% level of SCG, iii) 10% level of FSCG, and iv) 20% level of FSCG in 4×4 Latin square design. Each dietary experiment period lasted for 18-d with a 14-d of adaptation period and a 4-d of sample collection period. Results: In SCG fermentation experimental result, acid detergent insoluble nitrogen (ADIN) concentration of FSCG (64.5% of total N) was lower than that of non-fermented SCG (78.8% of total N). Digestibility of dry matter and organic matter was similar among treatment groups. Although crude protein (CP) digestibility of the control was greater than FSCG groups (p< 0.05), the 10% FSCG group showed greater CP digestibility and nitrogen retention than non-fermented 10% SCG group (p<0.05). Body weight gain and average daily gain were linearly decreased with increasing FSCG feeding level (p<0.05). When the feeding level of FSCG was increased, water intake was linearly increased (p<0.05). With an increasing FSCG level, dry matter intake did not differ among groups, although the gain to feed ratio tended to decrease with increasing level of FSCG (p<0.10). Conclusion: Microbial fermentation of SCG can improve protein digestibility, thereby increasing CP digestibility and nitrogen utilization in sheep. Fermentation using microorganisms in feed ingredients with low digestibility could have a positive effect on improving the quality of raw feed.