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- Title
Prevalence and characteristics of bruises of beef cattle carcasses from two regions of northwest Mexico.
- Authors
Sanchez-Perez, J. N.; Rios-Rincon, F. G.; Leyva-Medina, K. H.; Robles-Estrada, J. C.; Portillo-Loera, J. J.
- Abstract
Numerous risks associated with transport and handling of livestock cause bruising and poor welfare to animals. The objective of this work was to characterize bruises in bovine carcasses in a Federal Inspection Type slaughter house in the North and Central regions of Sinaloa, México. Four hundred forty-two bovine carcasses were randomly selected in a prospective observational study during 4 mo. Bruises were visually classified into 2 grades according to the amount of tissue affected (subcutaneous tissue [grade 1] and involving muscular tissue and sometimes bone [grade 2], shape (mottled, irregular, linear, circular, and railways), size (small, medium, and large), and location of bruises on the carcass (hindquarter, abdomen, rib, forehead, loin, coccygeal tuberosity, ischial tuberosity, and tail); this assessment was supported by photographs. Data were analyzed with a Fisher test in 2 × 2 contingency tables for 2 categories (Central and North regions). Seventy-six percent of the carcasses presented bruises, 40% from the North region and 36% from the Central region (P = 0.001). The anatomical site most affected was the loin (47%) followed by ribs (44%). The most common shape bruises were circular, 29.41% in the North region and 32.81% in the Central region (P = 0.01). Small size bruises were the most frequent (26.92 and 31.22%; P = 0.005) for the Central and North regions, respectively. Finally, bruises of grade 1 represented 32.58 and 34.84% (P = 0.02) for Central and North regions, respectively. It is concluded that the presentation of bruises on carcasses and anatomical sites affected indicates a need to improve transport conditions and personnel skills that result in better welfare for the animals as well as better financial profit.
- Subjects
MEXICO; BEEF cattle diseases; BRUISES; ANIMALS
- Publication
Journal of Animal Science, 2017, Vol 95, p13
- ISSN
0021-8812
- Publication type
Abstract
- DOI
10.2527/asasann.2017.025