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Browsing by Author "Junkyu Son"

Browsing by Author "Junkyu Son"

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  • A Novel Antifreeze Peptide Inhibits Intrinsic Mitochondrial Apoptosis in Bovine Embryos During Vitrification 
    Muhammad Tayyab Khan; Zaheer Haide; Chalani Dilshani Perera; Seo Hyeon Lee; Seung Eun Lee; Seo young Hyeon; Sung Woo Kim; Junkyu Son; Muhammad Idrees; Ilkeun Kong (Institute of Agriculture & Life Science, Gyeongsang National University, 2025-12)
    The vitrification of embryos is essential for animal reproduction and significantly contributes to assisted reproductive technologies, enabling fast cryopreservation without ice crystal formation. Mitochondria, vital ...
  • Dynamics of bacterial communities in vaginas and feces between pre and postpartum of dairy cows 
    Junkyu Son; Donghyeon Kim; Jihwan Lee; Sang Bum Kim; Beomyoung Park; Myunghoo Kim; Sung-Sill Lee; Taiyoung Hur; Eun Tae Kim (The Korean Society Of Veterinary Science, 2021-03)
    The reproductive tracts have an intimate relationship with reproduction because there are bacterial communities that can affect reproductive health. The differences in the bacterial community of periparturient dairy cows ...
  • Effects of heat stress on conception in Holstein and Jersey cattle and oocyte maturation in vitro 
    Jihwan Lee; Doo-San Kim; Junkyu Son; Dong-Hyeon Kim; Eun Jeong Jeon; Da Jin Sol Jung; Man Hye Han; Seungmin Ha; Seongsoo Hwang; Inchul Choi (Korean Society of Animal Sciences and Technology, 2023-03)
    Korea, located in East Asia in the northern hemisphere, is experiencing severe climate changes. Specifically, the heat stress caused by global warming is negatively affecting the dairy sector, including milk production and ...
  • Embryo Gender Ratio and Developmental Potential after Biopsy of In Vivo and In Vitro Produced Hanwoo Embryos 
    Sangrae Cho; 최장영; Junkyu Son; Incheol Cho; Jaegyu Yoo; Hyunjong Kim; 고영규; Nam Young Kim; Sanghyun HAN; 박용상; 고문석 (The Korean Society of Animal Reproduction and Biotechnology, 2013-01)
    The present study was to assess the in vitro viability and sexing rate of bovine embryos. Blastocysts were harvested on day 7～9 day after insemination(in vitro and in vivo), and the sex of the embryos was examined using ...
  • Estimation of genetic parameters for temperament in Jeju crossbred horses 
    Nam Young Kim; Junkyu Son; Incheol Cho; Sang-Min Shin; Seol Hwa Park; Pilnam Seong; Jae Hoon Woo; Nam-Geon Park; Hee-Bok Park (Asian-Australasian Association Of Animal Production Societies, 2018-08)
    Objective: Temperament can be defined as a type of behavioral tendency that appears in a relatively stable manner in responses to various external stimuli over time. The aim of this study was to estimate genetic parameters ...
  • Evaluation of Feed Value of Barley Fodder as an Alternative Feed Ingredient 
    Tae-Il Kim; Vijayakumar Mayakrishnan; Dong-Hyun Im; Hyun Jeong Lee; Junkyu Son; Yoon-Jeong Kim; Hee-Chul Choi; Jae-Hyeong Shin; Jong-Ho Park; Kim Sam Churl; Kwangseok Ki (The Korean Society of Grassland and Forage Science, 2020-09)
    Barley is an important cereal gain which is traditionally used in some nations of Asia and North Africa, and there has been growing interest in using barley as an ingredient in food due to their nutritional value and high ...
  • Hematological and microbial analysis on a Holstein heifer with infectious bovine keratoconjunctivitis 
    Seungmin Ha; Taiyoung Hur; Seogjin Kang; Younghun Jung; Junkyu Son; Donghyeon Kim; Jihwan Lee; Hyunhoon Sung; Eunseok Cho; Sangbeom Kim (THE KOREAN SOCIETY OF VETERINARY SERVICE, 2020-12)
    Infectious bovine keratoconjunctivitis (IBK) is the most common ocular disease in cattle, manifesting as corneal opacity, corneal ulcerations and potentially vision loss. The present report describes a 10- month-old Holstein ...
  • Identification of plasma miRNA biomarkers for pregnancy detection in dairy cattle 
    Hyun-Joo Lim; Hyunjong Kim; Ji Hwan Lee; Dong-Hyun Lim; Junkyu Son; 김은태; Gulwon Jang; Dong-Hyeon Kim (The Korean Society of Animal Reproduction and Biotechnology, 2021-03)
    A pregnancy diagnosis is an important standard for control of livestock’s reproduction in paricular dairy cattle. High reproductive performance in dairy animals is a essential condition to realize of high life-time production. ...
  • Jeju Crossbred Horses 정액 생산 시 Pentoxifylline 농도가정자 성상에 미치는 영향 
    Seol Hwa Park; Sang-Min Shin; 양병철; Nam Young Kim; Jae Hoon Woo; 신문철; Ji hyun Yoo; Junkyu Son (The Korean Society of Animal Reproduction and Biotechnology, 2018-03)
    This study was conducted to determine the effect of pentoxifylline levels on sperm motility, survival rate, sperm membrane integrity of frozen semen and fresh-extended equine semen in Jeju cross-bred horses. As a result ...
  • Jeju crossbred에서 3번 염색체 단일염기변이와 12개월령 체형과의 연관관계 
    Nam Young Kim; Jung-Woo Choi; Hyun Seok Chae; Kwang Soo Baek; Junkyu Son; Sang Min Shin; Jae Hoon Woo; Seol Hwa Park; 홍현주; 김수연; Young-Hoon Yang (The Korean Society of Animal Reproduction and Biotechnology, 2016-09)
    This study was conducted to analyze the effect of single nucleotide polymorphisms (SNPs) on the equine chromosomes (ECA) 3 for the body conformations of 12 month of age in Jeju crossbred (Jeju horses × Thoroughbred). A ...
  • Jeju crossbred에서 계절에 따른 난소주기 변화 연구 
    Yeong Ju Yu; Junkyu Son; Seol Hwa Park; Sang Min Shin; Byoung-Chul Yang; Pilnam Seong; Jae Hoon Woo; Nam Young Kim (The Korean Society of Animal Reproduction and Biotechnology, 2017-09)
    This study was conducted to investigate the ovarian cycle changes of the mare according to the season. Twenty four Jeju crossbred horses(Thoroughbred x Jeju horse) raised in Subtropical Livestock Research Institute, National ...
  • Physical Properties of Estrus Mucus in 
    임현주; Junkyu Son; 윤호백; 백광수; 김태일; Yeon-Sub Jung; Eung Gi Kwon (The Korean Society of Animal Reproduction and Biotechnology, 2014-06)
    The study aimed to determine the physical characteristics of estrus mucus and conception rates in dairy cattle. Samples of estrus mucus from the cervix were collected from 108 dairy cattle during heat and were examined ...
  • Temporal Regulation of Ovine Interferon-tau Gene by the Transcription Factor Eomesodermin in the Peri-Implantation Period 
    Min-Su Kim; Hyun-Joo Lim; Ji Hwan Lee; Taiyoung Hur; Junkyu Son (The Korean Society of Animal Reproduction and Biotechnology, 2019-12)
    Interferon tau (IFNT) regulation, an anti-luteolytic factor produced by conceptuses of the ruminant ungulates, is essential for the maintenance of early pregnancy, but a definitive mechanism for its temporal transcription ...
  • The studies on characteristics of return to estrus in postpartum dairy cattle 
    Doo-San Kim; Lee Jihwan; Gul-Won Jang; Eun-Jeong Choi; Jin-Ju Kim; Ji-An Lee; Junkyu Son (The Korean Society of Animal Reproduction and Biotechnology, 2021-12)
    This study attempted to determine the characteristic features of postpartum dairy cows during their return to estrus. Moreover, it investigated the effects of abnormal ovarian cycles (AOC) on subsequent reproductive ...
  • Various expression patterns of pregnancyassociated plasma protein-A 
    Eun Jeong Jeon; Ji Hwan Lee; Junkyu Son; Doo-San Kim; Dajeong Lim; Man-Hye Han; Hwang Seongsoo (The Korean Society of Animal Reproduction and Biotechnology, 2022-09)
    Pregnancy-associated plasma protein-A (PAPP-A) is known as an important biomarker for fetal abnormality during first trimester and has a pivotal role in follicle development and corpus luteum formation. And also, it is ...
  • 고온 스트레스 영향에 따른 홀스타인종 젖소의 반추위내 미생물 균총 변화 
    김동현; Myunghoo Kim; 김상범; HA SEUNGMIN; Junkyu Son; Ji Hwan Lee; Taiyoung Hur; Jae-Yeong Lee; 박지후; Hee-Chul Choi; Hyun-Jeong Lee; 박범영; Kwangseok Ki; KIM EUN TAE (The Korean Society of Grassland and Forage Science, 2019-12)
    This study was performed to investigate the effect of heat-stressed environment on rumen microbial diversity in Holstein cows. Rectal temperature and respiration rate were measured and rumen fluid was collected under ...
  • 다배란 처리에 따른 한우 체내 수정란 생산 효율과 수정란이식 
    Sangrae Cho; Sunho Choi; Choe changyong; Junkyu Son; 최수호; Young-joo Kim,; Poongyeon Lee; 연성흠; Hyunjong Kim; 손동수 (The Korean Society of Animal Reproduction and Biotechnology, 2010-09)
    In vivo embryo produced from Hanwoo donor cows were collected and transferred to Hanwoo recipients. Cows, at random stages of the estrous cycle, received Progesterone Releasing Intravaginal Device (CIDR-plus, InterAg, New ...
  • 발정탐색기를 이용한 Holstein 젖소의 발정행동 분석 및 번식효율 향상을 위한 조건의 평가 
    Kwang Soo Baek; Lee Wang Shik; Junkyu Son; 임현주; 윤호백; 김태일; Taiyoung Hur; Choe changyong; Young-Hun Jung; Eung Gi Kwon; Yeon-Sub Jung; 김선규; 원정일 (The Korean Society of Animal Reproduction and Biotechnology, 2013-09)
    The objective of this study was to analyze the accuracy of estrus detection of heat detector and analysis of estrus behavior (mounting and mounted), and the evaluation of conditions required for improving reproductive ...
  • 배양 조건에 따른 한우 수정란의 발달과 초자화 동결 후 수정란의 생존성 비교 
    Sangrae Cho; Sunho Choi; Choe changyong; Junkyu Son; 이풍연; 고응규; Hyunjong Kim; 연성흠; 손동수 (The Korean Society of Animal Reproduction and Biotechnology, 2010-09)
    We investigated the cleavage rate and blastocyst yield for each culture condition to enhance tolerance of cryopreservation of bovine IVF embryo with relatively lower cryo-tolerance compared to in vivo embryo. The cleavage ...
  • 분만후 젖소에 있어서 PGF2α+PGF2α+CIDR Program 적용에 의한 발정유기시 BCS의 영향 
    백광수; PARK SOO BONG; Hyeonshup Kim; Lee Wang Shik; Junkyu Son; 박성재; 이현준; 전병순; 안병석; 김재기; 정경용 (The Korean Society of Animal Reproduction and Biotechnology, 2005-12)
    본 연구는 젖소에 있어서 분만후 난소 활동의 재개 및 분만후 40일째 BCS가 PGF2ɑ+PGF2ɑ+ CIDR (PPC) program 적용에 미치는 영향을 구명하기 위하여 2002년부터 2003년까지 2년간에 걸쳐 축산연구소 및 천안 소재 전문 경영체 젖소농장에서 사육중인 홀스타인 착유우를 대상으로 분만 후 난소 활동의 재개를 조사하기 위한 착유우 21두 및 분만후 40일째 BCS가 PPC ...

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