A5000284135- Genetic and phenotypic traits in livestock
- Animal Nutrition and Physiology
- Genetic Mapping and Diversity in Plants and Animals
- Livestock and Poultry Management
- Meat and Animal Product Quality
- Reproductive biology and impacts on aquatic species
- Food Quality and Safety Studies
- Agriculture, Soil, Plant Science
- Silkworms and Sericulture Research
- Genetic diversity and population structure
- Reproductive Biology and Fertility
- Healthcare and Venom Research
- Environmental Toxicology and Ecotoxicology
- Marine Biology and Environmental Chemistry
- Animal Disease Management and Epidemiology
- Adipose Tissue and Metabolism
- Calpain Protease Function and Regulation
- Sperm and Testicular Function
- Vector-Borne Animal Diseases
- Peroxisome Proliferator-Activated Receptors
- Identification and Quantification in Food
- Biochemical Analysis and Sensing Techniques
- RNA regulation and disease
- Radio Wave Propagation Studies
- Macrophage Migration Inhibitory Factor
National Institute of Animal Science
2015-2025
Rural Development Administration
2011-2025
Chungnam National University
2023
Inje University
2013
Chonnam National University
2007-2012
Chungbuk National University
2012
Baewha Women's University
2006
Hanwoo (Also known as Korean native cattle; Bos taurus coreanae) have been used for transportation and farming a long time in South Korea. It has about 30 yrs since improvement began earnest beef cattle meat yield. The purpose of this study was to determine the trend well estimate genetic parameters traits being seedstock selection based on data collected from past. proven bulls Korea are currently selected through performance progeny tests. National evaluations implemented with yearling...
Skin color in chickens is an economically important trait that determines the first impression of a consumer toward broiler and can ultimately affect choice market. Therefore, identification genomic regions associated with skin crucial for increasing sales value chickens. Although previous studies have attempted to reveal genetic markers coloration chickens, most were limited investigations candidate genes, such as melanin-related focused on case/control based single or small population. In...
This study was performed to determine the effects of dietary fat sources, i.e., beef tallow, soybean oil, olive oil and coconut (each 3% in feed), on growth performance, meat quality gene expression growing-finishing pigs. A total 72 crossbred pigs (Landrace×Large White×Duroc) were used at 71±1 kg body weight (about 130 d age) 24 pens (320×150 cm) a confined pig house (three per pen) with six replicate treatment. The growing diet given for periods 14±3 finishing 28±3 d. type had no...
Maintaining genetic diversity is vital for biodiversity and livestock sustainability, with monitoring serving as a prerequisite conservation strategies. As an initial step developing future strategies, we analysed the priorities of 16 chicken breeds managed by government institute in this study. The were classified native or locally adapted per FAO definitions grouped origin (i.e., governmental private farms). Genetic diversity, assessed through observed expected heterozygosity, inbreeding...
This study presents a linkage disequilibrium (LD) analysis and effective population size (N e ) for the entire Hanwoo Korean cattle genome, which is first LD map estimate ever calculated this breed.A panel of 4,525 markers was used in final analysis.The pairwise r 2 statistic SNPs up to 50 Mb apart across genome estimated.A mean value = 0.23 observed distances <25 kb dropped 0.1 at 40 60 kb, similar average intermarker distance study.The proportion useful (r ≥0.25) 20% 10 20 between...
Genetic parameters associated with yearling weight, carcass traits, and primal-cut yields of male Hanwoo cattle were investigated using univariate bivariate animal models. The mean weight (YWT), (CWT), longissimus muscle area (LMA), backfat thickness (BFT), marbling score (MS) 352.47 ± 0.40 kg, 337.39 0.64 78.28 0.13 cm2, 8.45 0.05 mm, 3.25 0.03, respectively. Total yield (TPC) was 78.95 0.10% CWT, which 42.3% contributed by the forequarters (chuck, CHK; shoulder, SLD; ribs, RIB; brisket...
We present a case of 71-year-old man with prostate cancer who had no prior underlying liver disease. During metastatic evaluation, solid mass in the was identified by computed tomography and ultrasound. Gadoxetic acid (Gd-EOB-DTPA)-enhanced magnetic resonance imaging demonstrated well-defined, peripheral enhancing hepatic containing small cystic component. This lesion diagnosed as neuroendocrine tumor. Primary tumors are extremely rare. is interesting because rarity this neoplasm unique...
Objective In Korea, there are three main cattle breeds, which distinguished by coat color: Brown Hanwoo (BH), Brindle (BRH), and Jeju Black (JB). this study, we sought to compare the genetic diversity divergence among Korean breeds using a BovineHD chip genotyping array. Methods Sample data were collected from 168 in populations of BH (48 cattle), BRH (96 JB (24 cattle). The single-nucleotide polymorphism (SNP) was performed Illumina SNP 777K Bead chip. Results Heterozygosity, used as...
Genetic diversity analysis is crucial for maintaining and managing genetic resources. Several studies have examined the of Korean domestic chicken (KDC) populations using microsatellite markers, but it difficult to capture characteristics whole genome in this manner. Hence, study analyzed several KDC high-density single nucleotide polymorphism (SNP) genotype data. We 935 birds from 21 populations, including indigenous adapted native (KNC), Hyunin Jeju KDC, Hanhyup commercial populations. A...
Objective: Estimating the genetic diversity and structures, both within among chicken breeds, is critical for identification conservation of valuable resources. In chickens, microsatellite (MS) marker polymorphisms have previously been widely used to evaluate these distinctions. Our objective was analyze relationships 22 breeds in Asia based on allelic frequencies.Methods: We 469 genomic DNA samples from eight Asian countries (South Korea, KNG, KNB, KNR, KNW, KNY, KNO; Laos, LYO, LCH, LBB,...
The routine collection and use of genomic data are useful for effectively managing breeding programs endangered populations. Linkage disequilibrium (LD) using high-density DNA markers has been widely used to determine population structures predict the regions that associated with economic traits in beef cattle. extent LD also provides information about historical events, including past effective size (Ne), it allows inferences on genetic diversity breeds. objective this study was estimate Ne...
This study explores the phylogeny of Korean native black goats through analysis their complete mitochondrial DNA. The National Institute Animal Science has gathered genetic material on purebred from isolated regions such as Tongyeong, Dangjin, and Jangsu, is actively breeding them a national level. These populations, however, are small exhibit high inbreeding rates, highlighting urgent need to preserve diversity. haplotype diversity within this group 0.659, with 39 haplotypes identified. By...
Abstract Recently, we have shown that some endocrine disruptors, heavy metals, organotins and azoles suppressed steroidogenic enzymes such as P450 side‐chain cleavage enzyme (P450scc) aromatase in bullfrog ovarian follicles. In the present study, by using an amphibian follicle culture system, examined effects of these disruptors on maturation ovulation oocytes from Rana dybowskii vitro. Ovarian fragments or isolated follicles were cultured for 24 h a medium containing frog pituitary...
Following the Animal genetic resource for food and agriculture (AnGR) is considered as an independent possessing country, ensuring sovereignty of AnGR important. The present study investigated growth egg production performance six breed enrolled in DAD-IS purpose securing scientific data on Korea. A total 323 chickens (female 181, male 142) were used this study, with following breeds: Korean Leghorn (LEG), Gyeongbuk Araucana (ARA), native chicken (KNC), Ogye (Ogye), Hyunindak (HIL),...
This study investigated changes in gene expression by dietary fat source, i.e., beef tallow, soybean oil, olive and coconut oil (each 3% feed), both male female growing-finishing pigs. Real-time PCR was conducted on seven genes (insulin receptor; INSR, insulin receptor substrate; IRS, phosphatidylinositol (3,4,5)-triphosphate; PIP3, 3-phosphoinositide-dependent protein kinase-1; PDK1, kinase B; Akt, forkhead box O1; FOXO1 cGMP-inhibited 3', 5'-cyclic phosphodiesterase; PDE3) located upstream...
Watermelon (Citrullus lanatus (Thunb.) Matsum. & Nakai), an important member of the Cucurbitaceae family, is cultivated on 21,000 ha that produces 850,000 t in Korea. In April 2011, we received grafted watermelon with necrotic leaf spots from a commercial grower Andong, Black were observed cotyledons plants seedbeds, and approximately 9% infected disease. Initial symptoms seedling black, greasy sometimes surrounded by halo discoloration. Younger leaves usually showed later than cotyledons....
Many studies have reported the frequency and distribution of haplogroups among various cattle breeds for verification their origins genetic diversity. In this study, 318 complete sequences mtDNA control region from four Korean were used haplogroup classification. 71 polymorphic sites 66 haplotypes found in these sequences. Consistent with patterns previous reports, (T1, T2, T3, T4) identified breeds. addition, T1a, T3a, T3b sub-haplogroups classified. phylogenetic tree, each formed an...
It has been postulated that androgens, through their interaction with androgen receptors (AR), may play an important role in the development of ovarian cancer. Exon 1 AR gene contains three highly polymorphic trinucleotide repeats. The length (CAG)n repeat segment is inversely correlated transactivation function AR. Recent studies have shown BRCA1 as coregulator or coactivator and positive roles androgen-induced cell death cancer cells well other androgen/AR target organs. We hypothesize...
The normal feeding approach of goats might be due to their precise anatomical and physiological characteristics entity, which permit them highly selective, eat legume silages wild green grass. This review has been designed consider the grazing behavior, fodder selection, feed composition goats. Various herbs corns consumed by have numerous nutritive resources. Based on general herbaceous intake activities behavior goats, they prefer grass such as grown in steep hills than soft Because...