• Title, Summary, Keyword: Hanwoo

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The bovin phylogeny: A review

  • Sharma, Aditi;Lee, SeungHwan;Lee, JunHeon;Dang, Changgwon;Kim, Hyeong Cheul;Yeon, SeongHum;Kang, HeeSeol;Kanwar, Shamsher Singh;Vijh, Ramesh Kumar
    • Korean Journal of Agricultural Science
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    • v.41 no.4
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    • pp.405-413
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    • 2014
  • The evolutionary history of cattle and buffalo has always been a topic of great interest to the evolutionary biologists. The phylogenetic studies of bovin species has been carried out at various levels, varying from the study of domestication and migration of populations to major cladogenesis. Along with the archeological studies there are studies from molecular biology and more recently from genomics. The phylogenetic perspective of the bovins and their evolutionary history, are reviewed in terms of what has been done, what needs to be done and potential challenges in doing it.

Effect of Optixcell and Triladyl extenders on frozen-thawed sperm motilities and calving rates following artificial insemination in Hanwoo

  • Kang, Sung-Sik;Lee, Myung-Suk;Kim, Ui-Hyung;Lee, Seok-Dong;Yang, Byoung-Chul;Yang, Boh-Suk;Cho, Sang-Rae
    • Korean Journal of Agricultural Science
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    • v.46 no.1
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    • pp.195-204
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    • 2019
  • In this study, we examined the effect of a liposome-based extender (Optixcell) and a tris-citric egg-yolk extender (Triladyl) on the frozen-thawed spermatozoa characteristics and the calving rate. The percentages for the total motility of the frozen-thawed spermatozoa were similar in the Optixcell and Triladyl groups. However, among the motile spermatozoa with a straight line velocity (VSL) ${\geq}25{\mu}m/sec$, the curvilinear velocity (VCL, ${\mu}m/sec$), VSL (${\mu}m/sec$), average path velocity (VAP, ${\mu}m/sec$), amplitude of lateral head displacement (ALH, ${\mu}m$), beat cross frequency (BCF, Hz), and plasma membrane integrity of the frozen-thawed spermatozoa for the Optixcell group were significantly higher than those for the Triladyl group. Furthermore, the calving rate in the Optixcell group (79.0%) was higher than that of the Triladyl group (62.8%). However, the acrosomal membrane integrity of the frozen-thawed spermatozoa in the Optixcell and Triladyl groups was not significantly different. These results indicate that semen freezing with Optixcell improved the motility and plasma membrane integrity of frozen-thawed spermatozoa and the calving rate of Hanwoo cows (native Korean cattle). In conclusion, our results suggest that semen freezing with the liposome-based extender Optixcell is more efficient than with the tris-citric egg-yolk extender Triladyl for improved offspring production.

Comparisons of Beef Fatty Acid and Amino Acid Characteristics between Jeju Black Cattle, Hanwoo, and Wagyu Breeds

  • Lee, Seung-Hoon;Kim, Chung-Nam;Ko, Kyoung-Bo;Park, Se-Pill;Kim, Ho-Kyoung;Kim, Jun-Mo;Ryu, Youn-Chul
    • Food Science of Animal Resources
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    • v.39 no.3
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    • pp.402-409
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    • 2019
  • Jeju black cattle are known as one of Korea's traditional cattle. However, Hanwoo is more well-known to Korean meat consumers as representative beef cattle. Despite the popularity of these two breeds, comparison of the nutritional characteristics between Jeju black cattle and Hanwoo have not been studied. Here, we compared the fatty acid and amino acid characteristics between two Korean traditional cattle and Wagyu breeds. A total of 62 cattle were used in this study. The Jeju black cattle beef had significantly higher unsaturated fatty acids than Hanwoo (p<0.05). Savory fatty acids, including oleic acid were also higher than in Hanwoo cattle (p<0.05). The negative flavor fatty acids, such as palmitic acid were significantly lower than in Hanwoo (p<0.001). On the other hand, linoleic acid which imparts a negative flavor was higher than Hanwoo (p<0.05). Amino acids, including alanine and glutamine, usually representative of the umami taste were present in significantly higher proportions in Jeju black cattle (p<0.05). In addition, bitter tasting amino acids, including valine, leucine, isoleucine, and methionine were lower in Jeju black cattle beef than in Hanwoo (p<0.05, p<0.001, p<0.001, and p<0.001 each). Taken together, our results suggest that Jeju black cattle beef had higher savory flavor and umami taste which affected consumers preference for the meat.

Effects of weaning and castration ages on growth performance, blood metabolites, and carcass characteristics in Hanwoo steers

  • Lim, Hwan;Ahn, Jun Sang;Kim, Min Ji;Son, Gi Hwal;Park, Joong Kook;Shim, Jae Yoon;Kim, Il Young;Kim, Ji Hyung;Cho, Sung Myoun;Kwon, Eung Gi;Shin, Jong Suh;Park, Byung Ki
    • Journal of Animal Science and Technology
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    • v.60 no.12
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    • pp.30.1-30.11
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    • 2018
  • Background: Recently, as production costs have been increasing owing to rising feed prices worldwide, shortening the age of slaughter has been recognized as a way to increase farm income. In Korea, the raising period for Hanwoo steers is over 31 months with the delay of weaning and castration stated as one of the reasons for the increase in the raising period. Thus far, studies on age of weaning and castration have been conducted individually, and there have been no studies on the combined effects of weaning and castration ages on the growth performance and carcass characteristics in Hanwoo steers. Methods: Weaning ages were calculated at 80 or 130 days of age, and castration ages were calculated at 90 days and 180 days of age. Calves were allocated to one of the four treatment groups: W80C90 (weaning at 80 days of age and castration at 90 days of age), W80C180, W130C90, and W130C180. Results: For the entire experimental period, weaning and castration ages did not significantly affect growth performance of Hanwoo steers. In addition, weaning and castration ages did not affect the overall yield and quality traits of carcass in Hanwoo steers. Conclusion: Weaning and castration ages had small effects on growth performance and carcass characteristics in Hanwoo steers. Therefore, the early weaning and castration ages are recommended to reduce the slaughter age without any negative effects on meat quality grade.

Genetic polymorphism in regulatory region of fatty acid binding protein 4 (FABP4) and its effect on carcass weight in Hanwoo steers (한우 지방산결합단백질 4(FABP4) 유전자 조절영역내 단일염기변이(SNP)와 도체형질간 연관성 분석)

  • Lee, Seung-Hwan;Kim, Nam-Kuk;Kim, Seung-Chang;Choi, Bong-Hwan;Heo, Kang-Neung;Lee, Chang-Soo;Kim, Oun-Hyun;Lee, Jun-Heon;Kim, Hyeong-Cheul;Hong, Seong-Koo
    • Korean Journal of Agricultural Science
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    • v.38 no.4
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    • pp.673-680
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    • 2011
  • The aim of this study was to identify the polymorphism on fatty acid binding protein (FABP4) gene promoter region and its association with carcass traits in Hanwoo. We performed PCR-direct sequencing of FABP4 promoter region to identify single nucleotide polymorphism (SNPs) using unrelated 24 Hanwoo bulls. Four SNPs (-298A>G, -472A>G, -887A>G, -862A>G) were detected in the promoter region and genotyped on 583 Hanwoo steers. A linear mixed model revealed an association of three SNPs (-298A>G, -472A>G and -862A>G) with carcass weight and marbling score in dominance model (P<0.05). The animals with AA genotypes for the three SNPs were heavier carcass weight (5 kg) than animals with GG genotypes in the statistical analysis. For the marbling score, the AA genotype was lower effect of marbling score (0.21) than GG genotypes. In conclusion, this study indicates an important role for three SNPs detected in promoter region of FABP4 in determining carcass weight and marbling score in Hanwoo.

Whole Genome Association Study to Detect Single Nucleotide Polymorphisms for Body Conformation Traits in a Hanwoo Population

  • Alama, M.;Lee, Y.M.;Park, B.L.;Kim, J.H.;Lee, S.S.;Shin, H.D.;Kim, K.S.;Kim, N.S.;Kim, J.J.
    • Asian-Australasian Journal of Animal Sciences
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    • v.24 no.3
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    • pp.322-329
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    • 2011
  • A whole genome association (WGA) study was conducted to identify quantitative trait loci (QTL) for body conformation traits in Hanwoo cattle. The phenotypes of 497 steers were recorded from the Hanwoo Improvement Center of National Agricultural Cooperative Federation, Seosan, Korea, and analyzed using the Illumina Bovine 50 k SNP chip. A set of 35,987 SNPs that were available in the Hanwoo population was selected from the chip. After adjustments for the effects of year-season of birth, region and sire, phenotypes were regressed on each SNP using a linear regression model. Three hundred nineteen SNPs were detected for the ten conformation traits (p<0.003). For the significant SNPs, stepwise regression procedures were applied to determine best sets of markers. A total of 72 SNPs were selected (p<0.001), for which the sets of 5, 9, 10, 9, 8, 11, 4, 6, 3 and 7 SNPs were determined for height at withers, rump height, body length, chest depth, chest width, rump length, hip width, thurl width, pinbone width and heart girth, respectively. About 7-26% of the total phenotypic variation was explained by the set of SNPs for each trait. QTL for the conformation traits were harbored on most bovine chromosomes (BTAs). Four SNPs with pleiotropic effects on height at withers and rump height were detected on BTAs 3, 4, 6 and 16. A SNP with pleiotropic effects on chest width and rump length was also detected on BTA10. Two QTL regions, i.e. between 87 and 97 Mb in BTA3 and between 41 and 44 Mb in BTA7, were found, in which SNPs were detected for the five and three conformation traits, respectively. The detected SNPs need to be validated in other Hanwoo populations for commercial application to the genetic improvement of conformation characteristics in Hanwoo via marker-assisted selection (MAS).

A Single Nucleotide Polymorphism in LOC534614 as an Unknown Gene Associated with Body Weight and Cold Carcass Weight in Hanwoo (Korean Cattle)

  • Lee, Y.S.;Oh, D.Y.;Kim, J.J.;Lee, J.H.;Park, H.S.;Yeo, J.S.
    • Asian-Australasian Journal of Animal Sciences
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    • v.23 no.12
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    • pp.1543-1551
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    • 2010
  • A major aim of cattle genome research is to identify candidate genes associated with meat quantity and quality through QTL analysis for application in the livestock industry. Therefore, this study focused on discovery of useful SNPs within the LOC534614 gene, containing 12273_165 SNP which is located on the same site as the QTL on chromosome 6, and evaluation of the association between SNP and body weight and cold carcass weight in Hanwoo (Korean cattle) As a result of a BLAST search of the NCBI web site, we discovered that the mRNA sequence of the LOC534614 gene was similar to that of the coiled-coil domain containing 158 (CCDC158) for dog and human. According to the direct DNA sequence from the CCDC158 gene, we identified 19 polymorphic SNPs within exons and their flanking regions. Among them, 17 polymorphic SNPs were selected for genotyping in Hanwoo (n = 476) and seventeen marker haplotypes containing 12273_165 SNP (frequency >0.1) were identified. As a result of the association between 17 polymorphic SNPs and Hanwoo (n = 476), g.8778G>A SNP in exon 6 was found to be a non-synonymous SNP, and was significantly associated with body weight and cold carcass weight (p<0.05). We discovered 19 polymorphic SNPs in the CCDC158 gene on the QTL region of BTA 6 in Hanwoo and identified that the g.8778G>A SNP was significantly associated with body weight and cold carcass weight (p<0.05), which causes an amino acid variation from valine to methionine. Furthermore, statistical analysis demonstrated that the CCDC158 gene is strongly associated with body weight and cold carcass weight in Hanwoo. In this regard, the g.8778G>A SNP in the CCDC158 gene can be useful as a positional candidate for body weight and cold carcass weight for marker-assisted selection in Hanwoo.

A Study on Decreasing Metals from Hanwoo Slurry with Chemical Additives (한우액상분뇨로부터 중금속 저감을 위한 화학제재의 이용에 관한 연구)

  • Kim, Chang-Mann;Choi, Jung-Hoon;Ko, Soo-Hyun;Choi, In-Hag
    • Journal of Environmental Science International
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    • v.19 no.11
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    • pp.1385-1390
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    • 2010
  • Repeated additions of untreated slurry to soil affected ecology and caused high levels of heavy metal in soil and ground water. The objective of this study was to evaluate heavy metal from hanwoo slurry with ferrous sulfate ($FeSO_4{\cdot}7H_2O$), aluminum sulfate [$Al_2(SO_4)_3{\cdot}14H_2O$, alum] and aluminum chloride ($AlCl_3{\cdot}6H_2O$) as a way to improve environmental management in hanwoo industry. The treatment rates, which were incorporated totally within the hanwoo slurry, were 1.0 g and 1.5 g of ferrous sulfate, alum and aluminum chloride/25 g of hanwoo slurry. The various rates of chemical additives significantly increased dry matter (9.98~13.94%) and decreased pH (3.48~6.52) compared with the controls. The use of chemical additives decreased Fe (11~29%), Al (7~12%), Zn (13~36%), and Cu (4~32%) contents, except for Fe in hanwoo slurry with ferrous sulfate and Al in hanwoo slurry with alum and aluminum chloride. In addition, the reduction in heavy metal should be associated with reduction in pH. In conclusion, the results of this study suggest that alum and aluminum chloride additives at rate of 1.5 g were cost-effective management practice that significantly reduces heavy metal from hanwoo slurry, while it may be improved environmental management.

Analysis of Single Nucleotide Polymorphisms of Leptin Gene in Hanwoo(Korean Cattle) (한우 Leptin 유전자의 단일 염기 다형성 분석)

  • Lee, J.-Min;Song, G.C.;Lee, J.Y.;Kim, Young-Bong
    • Journal of Animal Science and Technology
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    • v.49 no.3
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    • pp.295-302
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    • 2007
  • Leptin, the product of the obese(ob) gene, is an adipocyte-derived hormone for the regulation of whole- body energy storage and energy usage. It has been reported that the homozygous mutations in the gene for leptin(LEP) induce obesity and reduce energy expenditure. In cattle, LEP has significant roles directly or indirectly related with phenotypes such as body weight and fat deposits, therefore SNPs of LEP have been considered important genetic marker to estimate carcass fat content in cattle. In this study, SNPs were screened in LEP(2,222 bp) between intron 1 to 3'-UTR from 24 independent Hanwoo(Korean cattle) by PCR and DNA sequencing. Total 25 SNPs were found and two nonsynonymous SNPs including T1163A(V19E) and G3256A(G132D) were newly detected only from Hanwoo. Among 20 SNPs previously reported in cattle, 16 SNPs were found in Hanwoo; however, the frequencies of some SNPs were significantly different between Hanwoo and western cattle breeds. The other 4 SNPs were not detected from Hanwoo. These Hanwoo specific SNP patterns in LEP will be used in development of molecular marker and application to genetic improvement of Hanwoo.

Comparison of Meat Color and Nutritional Composition of m. longissimus lumborum from Domestic Fed Hanwoo, Holstein and Imported Angus Steers

  • Oh, Mi-Ra;Park, Beom-Young;Seong, Pil-Nam;Cho, Soohyun;Kang, Keun-Ho;Kim, Jin-Hyung;Jeong, Seok-Geun;Lee, Jun-Soo;Jeong, Dawoon
    • Journal of Animal Science and Technology
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    • v.54 no.6
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    • pp.455-462
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    • 2012
  • This study was conducted to investigate the carcass characteristics and nutritional composition of longissimus lumborum (LL) muscle of domestic steer beef (Hanwoo and Holstein born and raised in Korea) and imported beef (Angus imported from Australia, raised for about 6 months in Korea). A total of twelve steers (4 steers per each breed and quality grade 2) were slaughtered, LL muscles were separated and stored at $4^{\circ}C$ for 7 days. The pH values of Holstein meat were notably higher than those of Hanwoo, and WHC values were similar between Hanwoo and Holstein, but Angus showed some differences. The WHC of the LL muscle from Hanwoo was better than those from Holstein and Angus when stored for fourteen days. The CIE $a^*$, $b^*$, and $h^0$ values of the LL muscle from Hanwoo were significantly higher than those of Angus at day 7 (p<0.05). Oxymyoglobin and metmyoglobin contents were not significantly different among three breeds at days 7 and 14. In the intra-muscular fat contents, the LL muscle of Hanwoo was significantly higher than Holstein, whereas the moisture and ash contents tended to be lower than the others. In mineral contents, P and Zn contents in the LL muscle of Holstein were higher than the other breeds, and K contents was higher in Hanwoo and Holstein meat than Angus.