So-Young Choi, Hongrip Min, Seunghee No, Dahye Son, Sanghoon Han, Jungjae Lee
This study investigates the genomic prediction accuracy for four carcass traits (Backfat thickness, Eye muscle area, Carcass weight and Marbling score) and one reproduction trait (Calving Interval) using customized genotyping platform (NHanwoo1) in Korean native cattle. We use 65,351 genotyped animals …
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Jin Hyung Kim, Eunjin Cho, Minjun Kim, Kun Ho Song, Dongwon Seo, Jun Heon Lee
The pet industry in Korea is rapidly growing with social changes such as an increase in single-person households and an aging population. As ownership of companion animals increases, problems related to dog behavior, especially aggression, become more prominent. Based on recent research, this paper …
Yuju Lee, Dain Lee, Julan Kim, Tae-Hee Kim, Chaehyeon Lim, Hyejin Kim, Jong-Won Park, Yoonji Chung, Yeongkuk Kim, Min Sung Kim, Seung Hwan Lee, Woo-jai Lee, Hyun-Chul Kim, Hee-Bok Park
The olive flounder (Paralichthys olivaceus) is one of the most economically important fish species in South Korea’s aquaculture industry. However, Edwardsiellosis, caused by Edwardsiella tarda (E. tarda), poses a significant threat to this industry, resulting in high mortality rates and economic losses. The aim of …
Yuju Lee, Dain Lee, Tae-Hee Kim, Minhwan Jeong, Julan Kim, Hyejin Kim, Chaehyeon Lim, Yoonji Chung, Yeongkuk Kim, Min-Sung Kim, Seung-Hwan Lee, Woojai Lee, Hyun-Chul Kim, Hee-Bok Park
Olive flounders (Paralichthys olivaceus) hold significant economic values in the aquaculture sector of South Korea. Scuticociliatosis, caused by several parasite species, poses an important threat to the aquaculture industry, particularly in olive flounders. Developing resistance to this disease is vital for sustainable …
Taejeong Choi, ChangGwon Dang, Gyeonglim Ryu, Dusan Kim, Hyeongwook Baik, Chanhyeok Park, Yangmo Koo, Sangchul Park, Jihwan Lee
This study was conducted to analyze the pedigree information of the Korean Jersey dairy cattle breed and to determine how the inbreeding coefficient is changing. A total of 3,624 pedigree data for 976 Jersey cows were used for the analysis, and the pedigree completeness index (PCI) and inbreeding …
Sangwon Yoon, Yu-Sam Kim, Hee Jung Baek, Dae-Yeong Koh, Ill-Joo Lee, Myunghum Park, Jung Woo Choi, Dongwon Seo
Studies have shown that consumers prioritize meat color, an easily evaluated trait, when selecting meat products. However, meat color traits are only observable post-slaughter, making them difficult to target for selective breeding. Therefore, this study aimed to identify potential candidate genes associated …
Seungwon Oh, Yang Mo Koo, Seung Hwan Lee, Duhak Yoon
In this study, we conducted a Genome Wide Association Study (GWAS) analysis of the reproductive traits in Hanwoo cows, Age at First Calving (AFC) and Calving Interval (CI), aiming to pinpoint candidate genes and their functional relevance. A total of 24,977 Hanwoo cows from commercial farms were genotyped using …
Hosung Lee, Yong-Chan Park, Hyo-Jun Woo, Jakyeom Seo, Myunghoo Kim, Dong-Hwan Kim and Byeong-Woo Kim
This study was designed to determine the environmental factors influencing birth weight and gestation period in Hanwoo by analyzing reproductive records from 2011 to 2023 of 370,444 cows. Initial statistical analyses revealed the average birth weight to be 27.27± 2.48 kg and the average gestation …
Ji-Hyun Son, Ki-Hwan Lee, Ji-Hong Lee, Yang-Mo Koo
This study was conducted to investigate the effects of environmental factors on the carcass traits of Hanwoo cattle. We collected carcass data of 1,703,304 animals of castrated cattle, which were raised by Korean beef farmers nationwide from 2009 to 2019 and registered as pedigree with the Korea Animal …
Seon-Ah Kwon, Ha-Seung Seong, Jae-Gwon Kim, Joo-Young Lee, Chang-Woo Lee, Dong-Woo Ha, Jong-Bok Kim, Jung-Woo Choi, Won-Hyong Chun
One of the main objectives of this study was to compare the differences of mean phenotypic values among steer progeny from 632 Korean proven bulls (KPN) with respect to their sire grade. Each sire was classified into one of the four grades (A, B, C, and D) on the quartiles of total index calculated by …
Juseung Lee, Kangmin Lee, Donghyuk Heo, Hosung Lee, Jakyeom Seo, Myunghoo Kim, Dong-Hwan Kim, Byeong-Woo Kim
This study analyzed the slaughter data of 12,277 Hanwoo cattle from the Chungcheong region (2021 and 2023), and 52,233 cattle from other regions in order to investigate the contribution of carcass trait to auction price. Multiple regression analysis was used to determine the contribution of carcass traits including …
Taejoon Jeong, Woncheoul Park, Sunsik Jang, Dajeong Lim
This study investigates gene expression changes in Hanwoo liver tissue across early growth stages to understand the molecular mechanisms underlying liver development and immune functions. Using weighted gene co-expression network analysis (WGCNA), we analyzed liver samples from 10 days (n = 3), 2 months (n = 10) …
Gwang Hyeon Lee, Hong Sik Kong
The goal of Hanwoo breeding is to produce large quantities of high-quality beef at a low cost. Breeding research has led to an increase of more than 100 kg in the average carcass weight of Hanwoo cattle. However, carcass weight includes bone and inedible fat, which differ from the percentage of lean …
Ga-Hyeon Jeong, Ye-Eun Won, Seung-Hoon Lee, Kyu-Sang Lim
Fatty Acid Binding Protein 3 (FABP3) is important for the transport and metabolism of intracellular fatty acids, and the genetic variants of FABP3 gene have been known to affect fat accumulation in pigs. Here, we aimed to investigate FABP3 single nucleotide polymorphism (SNP) focusing on the pork belly …
Nuri Choi, Minjun Kim, Yusam Kim, Do Hyun Kim, Hak Kyo Lee, Myung Hum Park, Bong Hwan Choi, Dongwon Seo
The identity and parentage verification tests for Hanwoo play a crucial role not only in preventing fraudulent distribution in the market but also in generating greater profits in calf transactions by verifying the parentage of superior bloodlines. Therefore, this study secured the genotypes of 946 Hanwoo cattle …
