pISSN: 2671-4639
eISSN: 2671-4663
Progeny test of calves born after artificial insemination of semen from giant cow-derived candidate sires
Candidate sire number | Number of progeny |
Average birth weight of the progeny (kg) | Average carcass weight of the progeny (kg) | Marbling score ranges (average) |
---|---|---|---|---|
1 | 14 | 40 | 534 | 1-1++ (1.53+) |
2 | 23 | 41 | 593 | 1-1++ (1.48+) |
3 | 17 | 42 | 561 | 1-1++ (1.59+) |
Average | n/a | 41 | 562.7 | 1.53+ (66.7% of ox rated as 1++) |
National average | n/a | 24 (female) 27 (male) |
467.0 |
Only 22.2% of ox rated as 1++ |
*Castration at the age of 7 months.
**For convenience, the average of marbling scores was calculated by counting the number of +. For example, if there were one 1++ and one 1+, the average in this table is expressed as 1.5+.
***National Institute of Animal Science (2024).
****Castrated (total body weight 500 kg and over): Korea Institute for Animal Products Quality Evaluation (KAPE, 2024).