Effects of dietary energy and lysine levels on physiological responses, reproductive performance, blood profiles, and milk composition in primiparous sows

( Jinsu Hong ),( Lin Hu Fang ),( Yoo Yong Kim ) 한국축산학회(구 한국동물자원과학회) 2020 한국축산학회지 Vol.62 No.3

The adequate intake of energy and lysine for primiparous sows are necessary for maternal growth of sows and growth of their progeny. This study was conducted to evaluate the effects of dietary energy and lysine levels on primiparous sows and their progeny. A total of 48 gilts (Yorkshire × Landrace), with an initial body weight (BW) of 168.1 ± 9.71 kg and at day 35 of gestation, were allotted to eight treatment groups with a 2 × 4 factorial arrangement. The first factor was metabolizable energy levels in diet (3,265 or 3,365 kcal of ME/kg), and the second factor was lysine levels in diet (gestation 0.55%, 0.65%, 0.75%, 0.85%, lactation 0.70%, 0.85%, 1.00%, 1.15%). The BW gain (p = 0.07) and backfat thickness (p = 0.09) in the gestation period showed a tendency to be increased in sows fed the high-energy diets. In the lactation period, sows fed the high-energy diets tended to be greater BW (p = 0.09) and less BW loss (p = 0.05) than those of sows fed the low-energy diets. Sows fed high-energy diets had a tendency of greater piglet weight at day 21 of lactation and greater piglet weight gain (p = 0.08 and p = 0.08, respectively). Although the blood urea nitrogen (BUN) was increased linearly as dietary lysine level increased at day 110 of gestation (Linear, p = 0.03), the BUN was decreased linearly as dietary lysine level increase at day 21 of lactation (Linear, p < 0.01). In the composition of colostrum, sows fed high-energy diets had greater casein, protein, total solid, solid not fat, and free fatty acid concentrations than those of sows fed low-energy diets (p < 0.05). Supplementation of total lysine 0.75% for gestation and 1.00% for lactation with 3,365 kcal of ME/kg energy level could be applied to the primiparous sows’ diet to improve performance of sows and growth of their progeny.

Insect as feed ingredients for pigs

Hong Jinsu,김유용 아세아·태평양축산학회 2022 Animal Bioscience Vol.35 No.2

Among edible insects, black soldier fly (Hermetia illucens), yellow mealworm (Tenebrio molitor), and common housefly (Musca domestica) have been considered as an alternative protein source for pigs. Because they are easy to breed and grow in the organic wastes, and they have well-balanced nutritional value as a protein source for pigs. The black soldier fly larvae and mealworm could replace the fish meal in the diets for weaned pigs without adverse effects on growth performance and nutrient digestibility. Black soldier fly could also be included in the finishing pig’s diet without any negative effects on the growth performance and pork quality of the market pigs. Insect products showed a greater standardized ileal digestibility value of amino acids than conventional animal proteins in growing pigs. Due to the limited amount of insect products used for pig feeding study, most previous pig studies have been conducted in weaned pigs. Thus, further study is needed about the optimal inclusion level of insect products in every phase diet from weaned pigs to sows. The use of insect products in swine diets has some challenges in terms of cost, supply, and safety. Lastly, intrinsic differences among insect species, processing method, and feeding phase should be taken into consideration for the use of insect products in the swine diets. Among edible insects, black soldier fly (Hermetia illucens), yellow mealworm (Tenebrio molitor), and common housefly (Musca domestica) have been considered as an alternative protein source for pigs. Because they are easy to breed and grow in the organic wastes, and they have well-balanced nutritional value as a protein source for pigs. The black soldier fly larvae and mealworm could replace the fish meal in the diets for weaned pigs without adverse effects on growth performance and nutrient digestibility. Black soldier fly could also be included in the finishing pig’s diet without any negative effects on the growth performance and pork quality of the market pigs. Insect products showed a greater stan­dardized ileal digestibility value of amino acids than conventional animal proteins in growing pigs. Due to the limited amount of insect products used for pig feeding study, most previous pig studies have been conducted in weaned pigs. Thus, further study is needed about the optimal inclusion level of insect products in every phase diet from weaned pigs to sows. The use of insect products in swine diets has some challenges in terms of cost, supply, and safety. Lastly, intrinsic differences among insect species, processing method, and feeding phase should be taken into consideration for the use of insect products in the swine diets.

Genome-wide transcriptomic analysis of BR-deficient Micro-Tom reveals correlations between drought stress tolerance and brassinosteroid signaling in tomato

Lee, Jinsu,Shim, Donghwan,Moon, Suyun,Kim, Hyemin,Bae, Wonsil,Kim, Kyunghwan,Kim, Yang-Hoon,Rhee, Sung-Keun,Hong, Chang Pyo,Hong, Suk-Young,Lee, Ye-Jin,Sung, Jwakyung,Ryu, Hojin Elsevier 2018 Plant physiology and biochemistry Vol.127 No.-

<P><B>Abstract</B></P> <P>Brassinosteroids (BRs) are plant steroid hormones that play crucial roles in a range of growth and developmental processes. Although BR signal transduction and biosynthetic pathways have been well characterized in model plants, their biological roles in an important crop, tomato (<I>Solanum lycopersicum</I>), remain unknown. Here, cultivated tomato (WT) and a BR synthesis mutant, Micro-Tom (MT), were compared using physiological and transcriptomic approaches. The cultivated tomato showed higher tolerance to drought and osmotic stresses than the MT tomato. However, BR-defective phenotypes of MT, including plant growth and stomatal closure defects, were completely recovered by application of exogenous BR or complementation with a <I>SlDWARF</I> gene. Using genome-wide transcriptome analysis, 619 significantly differentially expressed genes (DEGs) were identified between WT and MT plants. Several DEGs were linked to known signaling networks, including those related to biotic/abiotic stress responses, lignification, cell wall development, and hormone responses. Consistent with the higher susceptibility of MT to drought stress, several gene sets involved in responses to drought and osmotic stress were differentially regulated between the WT and MT tomato plants. Our data suggest that BR signaling pathways are involved in mediating the response to abiotic stress via fine-tuning of abiotic stress-related gene networks in tomato plants.</P> <P><B>Highlights</B></P> <P> <UL> <LI> BR-deficient Micro-Tom showed lower drought and osmotic stress tolerance. </LI> <LI> Complementation of BR activity completely restored stress and developmental defects in Micro-Tom. </LI> <LI> BR signaling is tightly connected with gene networks related to abiotic stress and development. </LI> </UL> </P>

대학 부설 치유정원 프로그램을 위한 치유정원 설계

홍진수(Jinsu Hong),김무한(Moo Han Kim) 인간식물환경학회 2022 인간식물환경학회 학술대회 Vol.2022 No.추계

Effects of stocking density on growth performance, hematological and biochemical parameter of Korean rockfish (Sebastes schlegeli).

Jinsu Lee,Myeong-seok Lee,Sokjin Hong,Byung Hwa Min,Hee sung Kim,Jang-Won Lee 한국수산과학회 양식분과 2019 한국수산과학회 양식분과 학술대회 Vol.2019 No.5

Queue Based Opportunistic Relaying Protocol for Cooperative Communications

Jinsu Kim,Jae Hong Lee 대한전자공학회 2009 ITC-CSCC :International Technical Conference on Ci Vol.2009 No.7

In this paper, we consider a wireless cooperative relaying network composed of multiple sources and single destination, in which each source can be a relay to cooperative with the other sources. We present a queue based cooperative relaying protocol to minimize outage probabilities and enhance the fairness in radio resource managements. In TDMA systems, each time slot is assigned to a source which has the best instantaneous channel condition to destination. The assigned source in each time slot divides time slot into multiple sub-time slots for its own data transmission and other sources’ queued data relaying. Simulation results show that the proposed scheme can obtain remarkable outage performance gain and reduce the unfairness in asymmetric channels.

Structure and nuclear transport mechanism of HSP70 nuclear transporter, Hikeshi

Jinsue Song,Hyerim Hong,Jong Il Ko,Eun-Joo Park,Sang Mi Park,Se-Young Son,Soo Jae Lee 한국구조생물학회 2015 Biodesign Vol.3 No.3

Translocation of macromolecules across the nuclear membrane under the normal conditions has been well studied, but the mechanism of nuclear translocation under the heat-shock stress conditions remain elusive. Hikeshi is a nuclear transport receptor required for cell survival after heat-shock stress. It is in charge of heat shock-induced nuclear import of 70-kilodalton heat shock proteins (HSP70s) through interactions with FG repeats in nuclear pore complexes. Hikeshi forms an “asymmetric” homodimer that is a characteristic feature. Asymmetry of Hikeshi arises from the distinct conformation of the C-terminal domain and the flexibility of the linker regions which areas are essential for nuclear import of HSP70. A unique extended-loop (E-loop) in the N-terminal domain controls the interactions of Hikeshi with FG-Nups by opening or closing the F97 binding site. The recently reported X-ray structure of Hikeshi explains how Hikeshi participates in the nuclear import regulation through FG-Nups recognition, and which part of Hikeshi affects its binding to HSP70. In this review, we will discuss the structural insight on the highly unique import receptor Hikeshi in heat-shock stress condition.

위상최적설계를 이용한 벌크 트레일러의 경량화 설계

김진수(Jinsu Kim),노홍승(Hong Seong Roh),민연주(Yeonjoo Min),허성호(Sung-Ho Hur),신승진(Seungjin Shin),장인권(In Gwun Jang) 한국자동차공학회 2017 한국 자동차공학회논문집 Vol.25 No.5

Two-Dimensional Thickness-Dependent Avalanche Breakdown Phenomena in MoS₂ Field-Effect Transistors under High Electric Fields

Pak, Jinsu,Jang, Yeonsik,Byun, Junghwan,Cho, Kyungjune,Kim, Tae-Young,Kim, Jae-Keun,Choi, Barbara Yuri,Shin, Jiwon,Hong, Yongtaek,Chung, Seungjun,Lee, Takhee American Chemical Society 2018 ACS NANO Vol.12 No.7

<P>As two-dimensional (2D) transition metal dichalcogenides electronic devices are scaled down to the sub-micrometer regime, the active layers of these materials are exposed to high lateral electric fields, resulting in electrical breakdown. In this regard, understanding the intrinsic nature in layer-stacked 2D semiconducting materials under high lateral electric fields is necessary for the reliable applications of their field-effect transistors. Here, we explore the electrical breakdown phenomena originating from avalanche multiplication in MoS<SUB>2</SUB> field-effect transistors with different layer thicknesses and channel lengths. Modulating the band structure and bandgap energy in MoS<SUB>2</SUB> allows the avalanche multiplication to be controlled by adjusting the number of stacking layers. This phenomenon could be observed in transition metal dichalcogenide semiconducting systems due to its quantum confinement effect on the band structure. The relationship between the critical electric field for avalanche breakdown and bandgap energy is well fitted to a power law curve in both monolayer and multilayer MoS<SUB>2</SUB>.</P> [FIG OMISSION]</BR>

무선 협력 네트워크를 위한 비례공정 중계 기법

김진수(Jinsu Kim),이재홍(Jae Hong Lee) 한국방송·미디어공학회 2011 한국방송공학회 학술발표대회 논문집 Vol.2011 No.11

본 논문에서는 무선 협력 네트워크(wireless cooperative network)의 전송 신뢰성과 공정성 향상을 위한 비례공정 중계(proportional-fair relaying) 기법을 제안한다. 다중 단말과 단일 기지국이 있는 다원 접속(multiple access) 환경에서 저속 페이딩(slow fading)에 의한 성능 열화를 저감하면서 단말간 자원 사용공정성 보장하기 위해 비례공정 전송 기법과 중계 기법 결합한다. 이를 통해 기존 기회적(opportunistic) 전송기법의 비대칭 채널(asymmetric channel)에서의 자원 사용 불공정성을 해결하면서 깊은 페이딩(deep fading)에 의한 데이터 무선 전송 손실을 최소화 한다. 컴퓨터 모의실험 결과를 통해 제안된 기법이 공정성 제한(fairness constraint)이 있는 다원 접속 환경에서 불능 확률(outage probability) 성능을 제고함을 보인다.