Anatomical and carcass traits, partition of fat deposits, and meat quality in culled adult goats finished with high-fat diet

Felipe B. B.  Oliveira; César C. L.  Fernandes; Juliana P. M.  Alves; Iolly T. O.  Marques; Caroline P.  Silva; Francisco W. R.  Lima; Hilton A. V.  Carneiro; Nauara M.  Lage Filho; Aníbal C.  Rêgo; Davide  Rondina

doi:10.17268/sci.agropecu.2024.045

Autores/as

Felipe B. B. Oliveira Institute of Animal Health and Production, Amazônia Federal Rural University, Belém, PA, Brazil. https://orcid.org/0000-0002-2696-8998
César C. L. Fernandes Health Sciences Center, University of Fortaleza, Fortaleza, CE, Brazil. https://orcid.org/0000-0001-6205-7086
Juliana P. M. Alves School of Veterinary Medicine, Ceará State University, Fortaleza, CE, Brazil. https://orcid.org/0000-0002-1762-8852
Iolly T. O. Marques School of Veterinary Medicine, Ceará State University, Fortaleza, CE, Brazil. https://orcid.org/0000-0002-4174-3025
Caroline P. Silva School of Veterinary Medicine, Ceará State University, Fortaleza, CE, Brazil.
Francisco W. R. Lima School of Veterinary Medicine, Ceará State University, Fortaleza, CE, Brazil. https://orcid.org/0000-0002-5128-4395
Hilton A. V. Carneiro School of Veterinary Medicine, Ceará State University, Fortaleza, CE, Brazil. https://orcid.org/0000-0003-3307-2206
Nauara M. Lage Filho Animal Science Department, Federal University of Ceará, Fortaleza, CE, Brazil. https://orcid.org/0000-0003-2914-4182
Aníbal C. Rêgo Animal Science Department, Federal University of Ceará, Fortaleza, CE, Brazil. https://orcid.org/0000-0002-5452-0832
Davide Rondina School of Veterinary Medicine, Ceará State University, Fortaleza, CE, Brazil. https://orcid.org/0000-0003-0474-8895

DOI:

https://doi.org/10.17268/sci.agropecu.2024.045

Palabras clave:

culled goats, finishing, meat, carcass, fat diet

Resumen

The objective of this study was to examine the impact of a high-fat finishing diet on the in vivo performance, anatomical and carcass characteristics, and meat quality of adult culled goats. Over a period of 28 days leading up to slaughter, eighteen adult culled goats were subjected to a finishing diet provided in quantities sufficient to meet 3.0 times the nutritional requirements of adult non-dairy maintenance goats. The female goats were divided into two groups: one fed with the baseline diet without fat supplementation (n = 9) and the other fed a diet concentrated supplemented with whole full-fat linseed (n = 9). The diets varied in fat content (2.8% vs. 8.4% DM). The high-fat group exhibited a higher dry matter intake compared to the control group (+37%), along with elevated plasma cholesterol and triglyceride levels. The control group experienced a significant decrease in daily weight gain between the second and final week of the finishing period (-70%), in contrast to the increase observed in the high-fat group (+59%). At slaughter, no differences were noted between the groups in anatomical and carcass characteristics. Additionally, no differences were found between the diets regarding proximate composition, pH, yellow color component, and lightness of loin. The high-fat group exhibited a higher redness of loin. The inclusion of high-fat levels in finishing diets for culled adult goats allows for increased feed intake and performance but does not appear to affect carcass or meat quality.

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