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Genetic Analysis of Major Carcass Traits of Korean Hanwoo Males Raised for Thirty Months
| Content Provider | MDPI |
|---|---|
| Author | Alam, Mahboob Lee, Soo Lee, Do Cho, Chungil Park, Mi |
| Copyright Year | 2021 |
| Description | Understanding animals’ genetic potential for carcass traits is the key to genetic improvements in any beef cattle. In this study, we investigated the genetic merits of carcass traits using Hanwoo males raised in a 30-month production system (PROD30). We achieved this using a dataset comprising 6092 Hanwoo males born between 2005 and 2017 and measures of four carcass traits (carcass weight, CWT; eye muscle area, EMA; backfat thickness, BFT; and marbling score, MS). Genetic parameters were estimated using a multiple-trait animal model through the AIREMLF90 program. According to the multiple-trait model, the $h^{2}$ of CWT, EMA, BFT, and MS were 0.35 ± 0.04, 0.43 ± 0.05, 0.48 ± 0.05, and 0.56 ± 0.05, respectively. The strongest genetic correlation $(r_{g}$) was obtained between CWT and EMA (0.49 ± 0.07), whereas it was negligible between CWT and BFT. EMA and MS were also moderately correlated, whereas there was a relatively low negative correlation between EMA and BFT (−0.26 ± 0.08). Our study revealed a consistent indirect genetic improvement in animals from 2005 onwards. Although Hanwoo improvement has mainly focused on males under a 24-month production cycle, we observed PROD30 males to have somewhat similar genetic potential. Our results provide useful insights into the genetic merits of PROD30 males for the first time, which may facilitate future studies on them and their integration into the Hanwoo National Evaluation for genomic selection. |
| Starting Page | 1792 |
| e-ISSN | 20762615 |
| DOI | 10.3390/ani11061792 |
| Journal | Animals |
| Issue Number | 6 |
| Volume Number | 11 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-06-15 |
| Access Restriction | Open |
| Subject Keyword | Animals Agriculture and Animal Production Heritability Genetic Correlation Animal Model Carcass Weight Eye-muscle Area Backfat Thickness Marbling Score 30-month Production Period Korean Hanwoo Cattle |
| Content Type | Text |
| Resource Type | Article |
