• Title/Summary/Keyword: Group Traits

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Application of single-step genomic evaluation using social genetic effect model for growth in pig

  • Hong, Joon Ki;Kim, Young Sin;Cho, Kyu Ho;Lee, Deuk Hwan;Min, Ye Jin;Cho, Eun Seok
    • Asian-Australasian Journal of Animal Sciences
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    • v.32 no.12
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    • pp.1836-1843
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    • 2019
  • Objective: Social genetic effects (SGE) are an important genetic component for growth, group productivity, and welfare in pigs. The present study was conducted to evaluate i) the feasibility of the single-step genomic best linear unbiased prediction (ssGBLUP) approach with the inclusion of SGE in the model in pigs, and ii) the changes in the contribution of heritable SGE to the phenotypic variance with different scaling ${\omega}$ constants for genomic relationships. Methods: The dataset included performance tested growth rate records (average daily gain) from 13,166 and 21,762 pigs Landrace (LR) and Yorkshire (YS), respectively. A total of 1,041 (LR) and 964 (YS) pigs were genotyped using the Illumina PorcineSNP60 v2 BeadChip panel. With the BLUPF90 software package, genetic parameters were estimated using a modified animal model for competitive traits. Giving a fixed weight to pedigree relationships (${\tau}:1$), several weights (${\omega}_{xx}$, 0.1 to 1.0; with a 0.1 interval) were scaled with the genomic relationship for best model fit with Akaike information criterion (AIC). Results: The genetic variances and total heritability estimates ($T^2$) were mostly higher with ssGBLUP than in the pedigree-based analysis. The model AIC value increased with any level of ${\omega}$ other than 0.6 and 0.5 in LR and YS, respectively, indicating the worse fit of those models. The theoretical accuracies of direct and social breeding value were increased by decreasing ${\omega}$ in both breeds, indicating the better accuracy of ${\omega}_{0.1}$ models. Therefore, the optimal values of ${\omega}$ to minimize AIC and to increase theoretical accuracy were 0.6 in LR and 0.5 in YS. Conclusion: In conclusion, single-step ssGBLUP model fitting SGE showed significant improvement in accuracy compared with the pedigree-based analysis method; therefore, it could be implemented in a pig population for genomic selection based on SGE, especially in South Korean populations, with appropriate further adjustment of tuning parameters for relationship matrices.

A Qualitative Analysis on Supervisors' Dysfunctional Leadership Behaviors, Antecedents, and Results (상사의 역기능 리더십 행동, 선행요인 그리고 결과에 대한 질적 분석)

  • Im, Chang-Hyun;Lee, Hee-Su
    • Journal of vocational education research
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    • v.30 no.4
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    • pp.1-22
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    • 2011
  • Paradoxically, leadership has not only positive effects but also negative effects. The purpose of this study is to examine supervisors' dysfunctional leadership behaviors, antecedents and results in order to draw HRD implications for protecting organizations and employees from dysfunctional leaders and provide implications for leadership development. A qualitative research method based on semi-organized interviews with 28 employees from S-group was used. The results of this study show that the dysfunctional leadership behaviors were associated with ten behavioral categories: belittling and insulting the subordinates, authoritative and arbitrary behaviors, self-aggrandizement, biased preference for certain personnel, arrogance, micro-managing, inability to change and adapt, discordance between words and actions, over-dependance on supervisor, lack of ethics and values. Dysfunctional leadership behaviors were casually attributed to 'personal traits & experience', 'task characteristics', and 'internal & external environments of the organization'. Finally, the results of supervisor's dysfunctional leadership behaviors on employees and the organizational effects were 'increased turnover rate', 'declining work efficiency', 'collapsing morale', 'retraining innovative thinking', 'passive working culture', 'discouraging organizational vitality', 'discouraging organizational synergy', 'losing loyalty' and 'declining trust on supervisor'.

Sequence variation of necdin gene in Bovidae

  • Peters, Sunday O.;Donato, Marcos De;Hussain, Tanveer;Rodulfo, Hectorina;Babar, Masroor E.;Imumorin, Ikhide G.
    • Journal of Animal Science and Technology
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    • v.60 no.12
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    • pp.32.1-32.10
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    • 2018
  • Background: Necdin (NDN), a member of the melanoma antigen family showing imprinted pattern of expression, has been implicated as causing Prader-Willi symptoms, and known to participate in cellular growth, cellular migration and differentiation. The region where NDN is located has been associated to QTLs affecting reproduction and early growth in cattle, but location and functional analysis of the molecular mechanisms have not been established. Methods: Here we report the sequence variation of the entire coding sequence from 72 samples of cattle, yak, buffalo, goat and sheep, and discuss its variation in Bovidae. Median-joining network analysis was used to analyze the variation found in the species. Synonymous and non-synonymous substitution rates were determined for the analysis of all the polymorphic sites. Phylogenetic analysis were carried out among the species of Bovidae to reconstruct their relationships. Results: From the phylogenetic analysis with the consensus sequences of the studied Bovidae species, we found that only 11 of the 26 nucleotide changes that differentiate them produced amino acid changes. All the SNPs found in the cattle breeds were novel and showed similar percentages of nucleotides with non-synonymous substitutions at the N-terminal, MHD and C-terminal (12.3, 12.8 and 12.5%, respectively), and were much higher than the percentage of synonymous substitutions (2.5, 2.6 and 4.9%, respectively). Three mutations in cattle and one in sheep, detected in heterozygous individuals were predicted to be deleterious. Additionally, the analysis of the biochemical characteristics in the most common form of the proteins in each species show very little difference in molecular weight, pI, net charge, instability index, aliphatic index and GRAVY (Table 4) in the Bovidae species, except for sheep, which had a higher molecular weight, instability index and GRAVY. Conclusions: There is sufficient variation in this gene within and among the studied species, and because NDN carry key functions in the organism, it can have effects in economically important traits in the production of these species. NDN sequence is phylogenetically informative in this group, thus we propose this gene as a phylogenetic marker to study the evolution and conservation in Bovidae.

The Nature of Personal Papers and Documentation Strategies for Personal Archives (개인 기록의 특성과 기록화 전략)

  • Oh, Myung Jin
    • The Korean Journal of Archival Studies
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    • no.53
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    • pp.79-117
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    • 2017
  • Personal records have both general characteristics as "records" and unique characteristics granted by the context of "personal." This study was conceived by a need to focus on those unique characteristics of personal records and examine them specifically to determine various methods for personal records management. In an effort to identify the characteristics of personal records, the study made an attempt at two different approaches. First, it examined the unique characteristics of personal records that were approachable in the production context of personal records and the process of records management with a focus on the ISO 15489: 2016 standard, which offers the most fundamental principles of records management, and the literature researches on personal records. It then reviewed theories related to "personality," one of man's unique traits, and its applicability to personal records management. In addition, the investigator examined personal characteristics with a focus on personality in the group of actual personal records housed at records management agencies in the nation and checked their influences on records management. The unique characteristics of personal records should be the base of understanding of and strategies for objects to be collected in the documentation activities. That first requires efforts to discover the characteristics of personal records across diverse dimensions, and it should be employed as the core of documentation strategies for personal records.

"Main Enemies" in the Posthuman Era: Monsters in Three Spanish Films (포스트휴먼 시대의 '주적(主敵)'들의 재현: 스페인 영화와 괴물들)

  • Seo, Eunhee
    • Cross-Cultural Studies
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    • v.50
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    • pp.53-75
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    • 2018
  • It is commonly emphasized that the metaphor of the monster is a rhetoric universally used to identify the "main enemy" of a society, for its effective function is seen as useful for the uniting of citizens to bend together to survive or succeed before the external threat. The problem of this metaphor is that it homogenizes and dehumanizes the heterogeneous individual members of the subsequently identified enemy group. This study emphasizes the importance of some traits of the posthuman subject, such as the flexibility and the multiplicity of consciousness, to overcome the otherizing binary perspective which is commonly held regarding the concepts of good and evil. To observe specific dimensions of the posthuman consciousness, we analyze three films based on Spanish history and reality: The Spirit of the Beehive, The Day of the Beast and Pan's Labyrinth. All of these films progress around the figure of the enemy-monster(s), showing how to transgress the dichotomous structure of consciousness that defines the self/good dividing it from the other/evil. The heroes in the films seek to overcome the fear about the monster, and approach him to discover new ethical horizons, that can emerge only when an individual's consciousness chooses to stay on the border between the established beliefs and the unfamiliar voice of the dangerous stranger(s).

Classification of Garlic Germplasms Based on Agronomic Characteristics and Multivariative Analysis (마늘 유전자원의 작물학적 특성과 다변량 분석에 의한 품종군 분류)

  • Lee, Jae Sun;Park, Young Uk;Jeong, Jae Hyun;Kwon, Young Hee;Chang, Who Bong;Lee, Hee Du
    • Korean Journal of Plant Resources
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    • v.34 no.1
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    • pp.79-88
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    • 2021
  • This research was conducted to investigate the genetic diversity and select useful accession with agronomic characteristics of garlic (Allium sativum L.). germplasms at Garlic Research Institute in Chungbuk Agricultural Research and Extension Service. Morphological diversity and relationships among 160 germplasms collected from 26 countries were assessed by methods of clustering and principal component analysis. Among 11 types of leaves and bulbs characteristics, emergence days of leaf showed the highest variation with coefficient of variation of 84.8%, and the bulb weight and the number of scales showed higher variability with 24.3%. Correlation analysis based on 11 quantitative traits showed that bulb weight and bulb length have very high positive correlation with bulb quantity. Plant height, leaf length, and number of leaves showed positive correlation with bulb weight as collections with better performance in growth produced large bulb with higher quality. The cluster analysis based on 5 principal components generated 6 clusters with an average distance of 1.6 among clusters. Domestic genetic resources were the largest with 36 species (22.5%) in group II.

Fermented cottonseed meal improves production performance and reduces fat deposition in broiler chickens

  • Niu, Jun Li;Wei, Lian Qing;Luo, Yuan Qing;Yang, Wen Ting;Lu, Qi Cheng;Zheng, Xin Xia;Niu, Yu Jie;Sheng, Wen;Cheng, Hong;Zhang, Wen Ju;Nie, Cun Xi
    • Animal Bioscience
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    • v.34 no.4
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    • pp.680-691
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    • 2021
  • Objective: This study was conducted to investigate the effect of fermented cottonseed meal (FCSM) on growth performance, carcass traits, and fat deposition in white-feather broiler chickens. Methods: A total of 480 male one-day-old white-feather broiler chickens were selected randomly and divided into four groups with six replicates of 20 chickens in each. The experimental chickens were fed diets including 3%, 6%, or 9% FCSM fermented by Candida tropicalis until 42 days old. In the experiment, the chickens of the control group were fed soybean meal. Results: FCSM supplementation linearly decreased the feed conversion ratio from d 15 to 21 and d 36 to 42, respectively (p<0.05). The percentage of carcass and semi-eviscerate increased in response to dietary FCSM supplementation at d 21 (p<0.05). The percentage of eviscerated and semi-eviscerate of 3FCSM was higher than that in other groups at d 35 (p<0.05). At the age of 42 d, the percentage of carcass increased in a quadratic way among increasing FCSM in diets (p<0.05). The subcutaneous fat thickness linearly decreased with the increasing levels of FCSM at d 21 (p<0.05). Gompertz and Logistic functions provided a better fit on abdominal fat and subcutaneous fat, respectively. The best fitted equation predicted that the maximum growth rate of abdominal fat weight and subcutaneous fat thickness occurred at d 28. FCSM had no significant effects on the shape of growth curve of abdominal fat weight and subcutaneous fat thickness, but reduced the height of the curve. Birds receiving the 6FCSM diet for 21 d had smaller adipocyte surface and lower serum glucose as well as triglyceride concentration. Conclusion: FCSM is beneficial for broiler chickens as it positively affects their growth and carcass in addition to altering their fat deposition.

A Basic Study for Development of the Korean Anger Provoking Situation Scale for Youth (한국판 청소년 분노유발상황 척도 개발을 위한 기초연구)

  • You, Dong-Hwan;Kim, Min;Lee, Jee-Sook
    • The Journal of the Korea Contents Association
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    • v.21 no.4
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    • pp.520-532
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    • 2021
  • The purpose of this study is to provide basic data for the development of the anger provoking situation scale using the mixed research method. For this purpose, three research methods were used: content analysis of domestic and international anger-inducing situation scale, NAS-PI factor and reliability analysis of youth anger-provoking scale, and FGI with youth expert. In the results of NAS-PI, there were four categories of 'unrespectful treatment', 'unfairness', 'annoying traits of others', and 'irritation' except 'frustration' among five categories. The results of the FGI consisted of seven categories: 'rejection', 'physical and verbal violence', 'ignorance', 'frustration', 'control and restraint', 'rumination', and 'interpersonal relationship'. As a result of integrating these contents, it is finally possible to reconstruction in to seven categories such as 'unfairness', 'injustice', 'ignorance', 'control and restraint', 'ignorance', 'frustration' 'interpersonal relationship'. The meaning of this study is to provide the basic data for the development of the anger provoking situation scale for domestic adolescents by integrating the contents analysis and quantitative and qualitative researches of domestic and international anger provoking situation scale. The results of this study are as follows. First, it is necessary to study the anger provoking situations reflecting sociocultural context, and to develop the reliability and validity of the anger provoking situation scale.

Narrative Imagination Applied to the God Jiutian Yingyuan Leisheng Puhua Tianzun: As Observed in the Narrative of Wen Zhong in Investiture of the Gods and of Kang Jeungsan in The Canonical Scripture (구천응원뇌성보화천존(九天應元雷聲普化天尊) 신격의 서사적 상상력 탐구 - 『봉신연의(封神演義)』의 문중(聞仲)과 『전경』의 강증산(姜甑山) 서사를 중심으로 -)

  • Yoo, Su-min
    • Journal of the Daesoon Academy of Sciences
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    • v.35
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    • pp.255-293
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    • 2020
  • This study examines the God, Jiutian Yingyuan Leisheng Puhua Tianzun (九天應元雷聲普化天尊, 'The Supreme God of the Ninth Heaven, Celestial Worthy of Universal Creation through His Thunderbolt, the Originator with Whom All Beings Resonate' in Daesoon Jinrihoe), in terms of narrative imagination, by investigating the narrative of Wen Zhong (聞仲) in Investiture of the Gods (Fengshenyanyi 封神演義) and the narrative of Kang Jeungsan (姜甑山) in The Canonical Scripture (Jeongyeong 典經). This examination occurs along three dimensions: Firstly, I look into the cultural contexts of the image of the Thunder God (雷神) in Gojoseon (古朝鮮) mythology and the Korean seondo (仙道) tradition both of which are reflected in the narrative of Wen Zhong. At the same time, I also argue that the cultural contexts examined above are able to be found in the narrative of Kang Jeungsan. Secondly, I consider the essential meaning of the concept of "deifying" (封神) in the narrative of Wen Zhong and its connection to "the resolution of grievances" (haewon 解冤) in the narrative of Kang Jeungsan. Thirdly, I consider the traits of embracing heterogeneous things (異類) in the religious group "Jiejiao" (截敎) that Wen Zhong belonged to in relation to the values of "mutual beneficence" (sangsaeng 相生) that Kang Jeungsan pursued. In this study's conclusion, I posit that the "mentalité" of Dong-yi (東夷) culture and tales including Yin (殷) is identifiable in narrative imagination applied to the God, Jiutian Yingyuan Leisheng Puhua Tianzun. This means that the nature of Jiutian Yingyuan Leisheng Puhua Tianzun is closely related to the tradition of Korean seondo and Korean Daoism.

Effect of multi-enzymes supplementation on growth performance, meat quality, ileal digestibility, digestive enzyme activity and caecal microbiota in broilers fed low-metabolizable energy diet

  • Yaqoob, Muhammad Umar;Yousaf, Muhammad;Iftikhar, Mubashir;Hassan, Safdar;Wang, Geng;Imran, Safdar;Zahid, Muhammad Umer;Iqbal, Waqar;Wang, Minqi
    • Animal Bioscience
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    • v.35 no.7
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    • pp.1059-1068
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    • 2022
  • Objective: This study was conducted to evaluate the effect of using low energy diet with multi-enzymes supplementation on different biological parameters in broilers. Methods: Three hundred Arbor Acres broiler chicks were randomly divided into three groups (Cont, standard metabolizable energy(ME); L-ME, ME reduced by 50 kcal/kg without enzyme; and L-ME-MES, L-ME diet was supplemented with multi-enzymes) with five replicates per group (20 chicks per replicate) at the start of second week. Grower and finisher diets were formulated according to breed specific guide and offered with free access in respective phase (two weeks for grower [8 to 21 d]; two weeks for finisher [22 to 35 d]). External marker method was used to measure the nutrient digestibility. After feeding trial, fifteen birds (one bird per replicate) were selected randomly and slaughtered for samples collection. Results: The results exhibited no effect (p>0.05) of dietary treatments on all parameters of growth performance, carcass traits, relative weight of internal organs except bursa and overall parameters of thigh meat quality. Relative weight of bursa was significantly (p<0.05) higher in L-ME than control. Multi-enzymes supplementation in low-ME diet significantly (p<0.05) improved the breast meat pH 24 h, digestibility of crude protein, duodenum weight and length, jejunal morphology, counts of Lactobacillus spp. and Bifidobacterium spp., lipase and protease activities than control. Jejunum length was increased in both L-ME and L-ME-MES treatments than that of the control (p<0.05). Breast meat cooking loss and color lightness was lower in L-ME (p<0.05) than control. Conclusion: It can therefore be concluded that broilers could be reared on low energy diet with supplementation of multi-enzymes without compromising the growth performance. In addition, it is beneficial for other biological parameters of broilers.