• 제목/요약/키워드: Hanwoo

검색결과 1,644건 처리시간 0.03초

Genetic diversity analysis of the line-breeding Hanwoo population using 11 microsatellite markers

  • Shil Jin;Jeong Il Won;Byoungho Park;Sung Woo Kim;Ui Hyung Kim;Sung Sik Kang;Hyun-Jeong Lee;Sung Jin Moon;Myung Sun Park;Hyun Tae Lim;Eun Ho Kim;Ho Chan Kang;Sun Sik Jang;Nam Young Kim
    • 농업과학연구
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    • 제50권3호
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    • pp.321-330
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    • 2023
  • The genetic diversity of three Hanwoo populations was analyzed using 11 microsatellite (MS) markers for the traceability of Hanwoo beef in this study. A total of 1,099 Hanwoo cattle from two populations (694 line-breeding and 405 general Hanwoo) at the Hanwoo Research Institute (HRI) of the National Institute of Animal Science and 1,171 Korean proven bulls (KPNs) were used for the analysis. Specific alleles of four markers (ETH10, INRA23, TGLA122, and TGLA227) were identified only in the line-breeding population, although at a low allele frequency (0.001 - 0.02). The genetic distance (Nei's D) between line-breeding Hanwoo and KPN was the greatest (0.064), whereas general Hanwoo and KPN were relatively close genetically (0.02); the distance between line-breeding and general Hanwoo was found to be 0.054. These results are expected because the HRI has performed closed breeding via selecting its line-breeding sires without utilizing KPN since 2009. Therefore, the line-breeding Hanwoo population of HRI show different genetic diversity from the KPN population, based on the 11 MS markers. The results of this study provide basic data for securing the genetic diversity of Hanwoo cattle and utilizing line-breeding Hanwoo cattle from the HRI.

Hanwoo cattle: origin, domestication, breeding strategies and genomic selection

  • Lee, Seung-Hwan;Park, Byoung-Ho;Sharma, Aditi;Dang, Chang-Gwon;Lee, Seung-Soo;Choi, Tae-Jeong;Choy, Yeon-Ho;Kim, Hyeong-Cheol;Jeon, Ki-Jun;Kim, Si-Dong;Yeon, Seong-Heum;Park, Soo-Bong;Kang, Hee-Seol
    • Journal of Animal Science and Technology
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    • 제56권1호
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    • pp.2.1-2.8
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    • 2014
  • Hanwoo (Korean cattle) is the native, taurine type of cattle breed of Korea and its history as a draft animal dates back to 5000 Years. In earlier times Hanwoo was used extensively for farming, transportation. Over the period of time, Hanwoo has changed to be meat type cattle. Full-scale production of Hanwoo as meat-type cattle has occurred since 1960s with the rapid growth of the Korean economy. Hanwoo is one of the most economically important species in Korea as it is a significant source of nutrition to the Korean people. Hanwoo beef is the most cherished food of Korea. One of the main goals of researchers is to increase the meat quality, quantity and taste of the beef. In this review we describe the origin, domestication of Hanwoo cattle and breeding program initiated from 1980's. Moreover the advent of technological advancement had provided us a platform to perform genome wide selection on economic traits and its implementation into traditional breeding programs.

한우브랜드의 성장과 유통마진의 관계 분석 (Analysis on the relationship between Hanwoo brands' growth and marketing margin)

  • 구본철;박재홍
    • 농업과학연구
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    • 제39권1호
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    • pp.43-51
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    • 2012
  • Hanwoo, Korean cattle, is traditionally an important livestock to farmers and also important meat to consumers. Recently, to make more efficient production system and provide cheaper and high-quality hanwoo meat, the scale-up via brand is emphasized. However, the price of hanwoo is getting higher and the price increase is considered to occur due to marketing margins in the distribution process. In this study, factors affecting the hanwoo marketing margin are analyzed using 2004-2009 monthly data. In the Cochrane-Orcutt estimation of marketing margin, hanwoo production, other domestic production and import, income, output index, market share of major retailers, and market share of hanwoo brands shows statistical significance in the result. The results shows basic factors of the marketing margins to hanwoo and gives some implications to the management system of hanwoo brand like a sophisticated market segmentation and a differentiated promotion.

Physicochemical properties of crust derived from dry-aged Holstein and Hanwoo loin

  • Lee, Jeong-Ah;Kim, Hack-Youn
    • Journal of Animal Science and Technology
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    • 제62권5호
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    • pp.692-701
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    • 2020
  • This study evaluated the quality characteristics of crust derived from dry-aged Holstein and Hanwoo loins and their effects on food as additives. With respect to physicochemical properties, we examined the proximate composition, pH value, salinity, color, water and fat absorption, emulsifying capacity, and swelling yield. The protein and ash contents in the Holstein crust were significantly higher than those in the Hanwoo crust (p < 0.0001). The fat content in the Hanwoo crust was significantly higher than that in the Holstein crust (p < 0.01). The salinity, lightness, and yellowness of the Hanwoo crust were significantly lower than those of the Holstein crust (p < 0.001). Furthermore, the pH value and emulsifying capacity of the Hanwoo crust were significantly higher than those of the Holstein crust (p < 0.001). The fat absorption of the Holstein crust was significantly higher than that of the Hanwoo crust (p < 0.001). The swelling yield of the Holstein crust was significantly higher than that of the Hanwoo crust at pH 3 and 4 (p < 0.001), whereas the swelling yield of the Hanwoo crust was significantly higher than that of the Holstein crust at pH 7 (p < 0.001). Principal component analysis of dry-aged Hanwoo, Holstein, and non-aged Holstein showed different flavor patterns for each sample. Finally, the results showed that the crusts derived from dry-aged Hanwoo and Holstein loins were suitable flavor enhancers.

Motility, Fertilizability and Subsequent Embryonic Development of Frozen-thawed Spermatozoa derived from Epididymis in Hanwoo

  • Yang, Byoung-Chul;Kang, Sung-Sik;Park, Chang-Seok;Kim, Ui-Hyung;Kim, Hyeong-Cheol;Jeon, Gi-Jun;Kim, Sidong;Lee, Seok-Dong;Lee, Hyun-Jae;Cho, Sang-Rae
    • 한국수정란이식학회지
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    • 제30권4호
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    • pp.271-276
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    • 2015
  • The aim of the study was to investigate the ability of sperm derived from the epididymis in regard to sperm motility, sperm penetration to oocyte and subsequent development of the embryo. Frozen-thawed sperm from epididymis showed similar percentage of motile sperm (VSL ${\geq}25{\mu}m/sec$) as compared to that of commercial sperm (control). Sperm penetration of frozen-thawed epididymal and commercial sperm was not significantly different. Moreover, cleavage and blastocyst rates were similar in both epididymal and control. Sperm derived from the epididymis also showed fertilizability and subsequent embryonic development.

Strategies to Multiply Elite Cow in Hanwoo Small Farm

  • Lee, Seung Hwan;Kim, Ui Hyung;Dang, Chang Gwan;Aditi, Sharma;Kim, Hyeong Cheul;Yeon, Seung Heum;Jeon, Gi Jun;Chang, Sun Sik;Oh, Sung Jong;Lee, Hak Kyo;Yang, Bo Suk;Kang, Hee Seol
    • 한국수정란이식학회지
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    • 제28권2호
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    • pp.79-85
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    • 2013
  • The recent development in genetic assisted selection (combining traditional- and genome assisted selection method) and reproduction technologies will allow multiplying elite cow in Hanwoo small farm. This review describes the new context and corresponding needs for genome assisted selection schemes and how reproductive technologies can be incorporated to get more genetic gain for cow genetic improvement in Hanwoo. New improved massive phenotypes and pedigree information are being generated from commercial farm sector and these are allowing to do genetic evaluation using BLUP to get elite cows in Korea. Moreover cattle genome information can now be incorporated into breeding program. In this context, this review will discuss about combining the reproductive techniques (Multiple Ovulation Embryo Transfer; MOET) and genome assisted selection method to get more genetic gain in Hanwoo breeding program. Finally, how these technologies can be used for multiplication of elite cow in small farm was discussed.

Description of the External Genitalia and Uterus of a 24-month-old Freemartin Hanwoo

  • Kim, Ui-Hyung;Kang, Sung-Sik;Chung, Ki-Yong;Yang, Boh-Suk;Cho, Sang-Rae
    • 한국수정란이식학회지
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    • 제33권1호
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    • pp.13-16
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    • 2018
  • We observed the external genitalia and uterus of a 24-month-old freemartin Hanwoo. The vulva was smaller than observed in a normal female Hanwoo, while the clitoris was larger in the freemartin. The angle between the external genitalia and the perineum also varied. Upon internal genital examination, the uterus of the freemartin was a thin tube approximately 18 cm in size and had not differentiated into a normal uterus and uterine horns.

Monthly Hanwoo supply and forecasting models

  • Hyungwoo, Lee;Seonu, Ji;Tongjoo, Suh
    • 농업과학연구
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    • 제48권4호
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    • pp.797-806
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    • 2021
  • As the number of scaled-up ranches increased and agile responses to market changes became possible, decision-making by Hanwoo cattle farms also began to affect short-term shipments. Considering the changing environment of the Hanwoo supply market and the response speed of producers, it is necessary quickly to grasp the forecast ahead of time and to respond accordingly in an effort to stabilize supply and demand in the Hanwoo market. In this study, short-term forecasting model centered on the supply of Hanwoo was established. The analysis conducted here indicates that the slaughter of Hanwoo males increases by 0.248 as the number of beef cattle raised over 29 months of age in the previous month increases by one, and 0.764 Hanwoo females were slaughtered under average conditions for every Hanwoo male slaughtered. With regard to time, the slaughtering of Hanwoo was higher in January and August, which are months known for holiday food preparation activities for the New Year and Chuseok in Korea, respectively. Simulations indicated that errors were within 10% in all simulations performed through the Hanwoo supply model. Accordingly, it is considered that the estimation results from the supply model devised in this study are reliable and that the model has good structural stability.

한국 재래흑우 및 한우의 지방산 조성 및 영양성분 비교 (Comparison of Fatty Acid and Nutritional Composition of Korean Native Black Cattle and Hanwoo)

  • 박경숙;박현숙;최영준;이재상;박성숙;정인철
    • 한국식품조리과학회지
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    • 제30권5호
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    • pp.556-563
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    • 2014
  • The nutritional composition of Korean native black cattle (KNBC) and Hanwoo beef were compared. According to the results, there were no significant differences in moisture, protein, ash, calorie and collagen content, but the fat content of KNBC was significantly higher than that of Hanwoo (p<0.05). The P, Na and Cu content of KNBC were significantly higher than that of Hanwoo (p<0.05). The KNBC and Hanwoo had total mineral amounts of 4,052.34 and 3,214.44 ppm, respectively, with the KNBC being significantly higher than Hanwoo (p<0.05). The vitamin B1 content of KNBC was significantly higher than that of Hanwoo (p<0.05), but there was no significant difference in B2 content between the samples. The total structural amino acid contents was not significantly different between KNBC (12.35%) and Hanwoo (12.58%). The KNBC and Hanwoo had total free amino acid amounts of 752.698 and 661.795 ppm, respectively, with the KNBC being significantly higher than Hanwoo (p<0.05). The stearic acid (10.631%), linoleic acid (2.271%), linolenic acid (0.065%) and tricosanoic acid (0.038%) contents of KNBC were lower than those of Hanwoo (p<0.05). However, their palmitoleic acid (5.292%), oleic acid (48.815%), ${\gamma}-linolenic$ acid (0.094%), eicosenoic acid (0.042%) and docosadienoic acid (0.099%) contents were higher than those of Hanwoo (p<0.05). There was no significant difference between the KNBC and Hanwoo in the saturated fatty acid : unsaturated fatty acid ratio.

DNA 분석법에 의한 한우고기 판별 (Identification of Hanwoo Meat by DNA Analysis)

  • 오홍록;이창수;상병찬;송광택
    • 농업과학연구
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    • 제33권1호
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    • pp.1-10
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    • 2006
  • 본 연구는 개발된 품종 특이적인 DNA 표지인자를 이용하여 한우와 비한우의 고기를 판별하고자 하였다. 한우와 유럽종 고기소들의 유전적 차이를 Random amplified polymorphic DNA(RAPD) 분석으로 조사한 바, 홀스타인, 헤어포드, 에버딘엥거스, 리모진 및 시멘탈과 같은 한우가 아닌 유럽 종들의 RAPD 패턴들은 동일하였으나, 한우는 이들과 다른 패턴을 보였다. 한우는 유럽종들에서 모두 검출된 특정의 밴드가 발견되지 않았다. 1.4Kbp인 밴드는 한우와 수입소 고기를 판별해 낼 수 있는 유용한 DNA 표지인자로 인정되었다. 실제로, 한우 673 마리, 홀스타인 141 마리의 혈액시료 및 수입육 115의 고기시료를 가지고 시행한 실험에서 그 DNA 표지인자는 비한우에서는 256두 중 245두에서 검출되었으나, 한우에서는 673두 중 644두의 시료에서 검출되지 않아서, 비한우의 검출율은 95%, 한우의 비검출율은 96%를 보였다. 이러한 결과는 그 DNA 표지인자를 이용하여 한우와 비한우 고기를 판별할 수 있음을 시사하였다. 그러나 두 품종 사이의 교잡종은 한우나 비한우의 RAPD 패턴 중에서 한 가지를 무원칙하게 선택하여 나타내고 있으므로, 이러한 DNA 표지인자만으로서는 판별하기가 어려웠다.

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