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Factors influencing carcass shrinkage during aging in crossbred beef cattle under a tropical cooperative fattening system |
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| รหัสดีโอไอ | |
| Creator | Skorn Koonawootrittriron |
| Title | Factors influencing carcass shrinkage during aging in crossbred beef cattle under a tropical cooperative fattening system |
| Contributor | Suphawida Hiranrueang, Thanathip Suwansopee |
| Publisher | Faculty of Agriculture |
| Publication Year | 2569 |
| Journal Title | Khon Kaen Agriculture Journal |
| Journal Vol. | 54 |
| Journal No. | 5 |
| Page no. | 1125-1138 |
| Keyword | beef cattle, carcass shrinkage, breed group, sex effect, tropical production system |
| URL Website | https://li01.tci-thaijo.org/index.php/agkasetkaj |
| Website title | Khon Kaen Agriculture Journal |
| ISSN | 3027-6497 (Online) |
| Abstract | Carcass shrinkage during aging at 4°C is an important factor affecting meat quality, saleable yield, and the economic efficiency of beef production systems. Although carcass shrinkage has been reported to be associated with animal-related factors, quantitative information under practical tropical production conditions remains limited. This study aimed to evaluate the effects of breed group, sex, and number of permanent tooth pairs, used as an indicator of age, on carcass shrinkage in crossbred fattening cattle raised under a cooperative production system in Thailand. Data from 5,509 cattle slaughtered between 2019 and 2023 were analyzed. Carcass shrinkage was calculated as the difference between hot carcass weight and cold carcass weight after a 7-day aging period at 4°C. Data were analyzed using a General Linear Model, with breed group and sex fitted as fixed effects and number of permanent tooth pairs as a linear covariate. The breed groups included Charolais, Holstein, Angus, Wagyu, Brahman, and Beefmaster crossbreds. The results showed that breed group, sex, and number of permanent tooth pairs significantly affected carcass shrinkage expressed as both kilograms and percentage (P<0.05). Charolais crossbreds exhibited the lowest carcass shrinkage (2.78±0.03%), whereas Holstein crossbreds showed the highest (3.02±0.03%). Female cattle had lower carcass shrinkage than castrated males (2.81±0.04% vs. 3.00±0.04%). In addition, carcass shrinkage increased with increasing number of permanent tooth pairs. These findings indicate that biological characteristics of cattle are associated with carcass shrinkage under commercial production conditions and may be useful for supporting animal selection, production planning, and post-slaughter carcass management strategies to reduce losses and improve efficiency in tropical beef production systems. |
