Carcass and meat characteristics of lamb under an intensive feeding system
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Universidad Nacional, Costa Rica
2020
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| Acceso en línea: | https://www.revistas.una.ac.cr/index.php/veterinaria/article/view/13613 |
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VETERINARIA136132020-07-02T14:04:39Z Carcass and meat characteristics of lamb under an intensive feeding system Características de la canal y de la carne de corderos de un sistema intensivo Desdémona Martínez, Esmeralda phenotype structure fat maturity color fenotipo estructura grasa madurez color The objective of this paper was to determinate carcass and meat characteristics of different lamb phenotypes, including: Blackbelly (BB; n=22), Pelibuey Blanco (PB; n=16), Pelibuey Canelo (PC; n=22), Dorper (DO; n=37), Katahdin (KA; n=29), Pelibuey x Katahdin (PK; n=8) and Hair x Wool (HW; n=11), aged 6 to 8 months old and raised under a 90 d intensive finishing system. Variables assessed in the lamb carcass were yield (Y), conformation (CONF), fat cover (FC), morphometric measurements, fat cover color (FCC) and meat color (MC). Data was analyzed using a mean comparison model. DO, HW, and KA showed better relation between skeletal structure, muscle growth, and FC (P<0.05) than PB, PC, and BB, which had lower slaughter weight and FC. Carcass morphometric measurements showed that DO and HW were compact and thick, as a result of early maturity of the skeletal structure, compared to BB, PB, and PK, which were longer and had less carcass compactness. DO’s fat color was between white and beige, while BB and HW’s was between white and yellow. PB and DO’s meat color was reddish pink, while PK’s was bright red. In conclusion, the physiological maturity of the different lamb phenotypes is reflected in Y, CONF, morphometric measurements, and FC. On the other hand, the feeding system characteristics showed variation in FCC. El objetivo de este trabajo es determinar las características de la canal y de la carne de corderos de diferentes fenotipos. Blackbelly (BB; n=22), Pelibuey Blanco (PB; n=16), Pelibuey Canelo (PC; n=22), Dorper (DO; n=37), Katahdin (KA; n=29), Pelibuey x Katahdin (PK; n=8) y Media Lana (ML; n=11), con un rango de edad entre 6 a 8 meses y criados en un sistema de finalización intensivo por 90 d. Las variables evaluadas en la canal son: rendimiento (REND), conformación (CONF), cobertura de grasa en la canal (CG), medidas morfométricas, color de la grasa de cobertura (CGC) y color de la carne (CC). Los datos se analizan bajo un modelo de comparación de medias. Los DO, ML y KA tuvieron mejor relación en la estructura esquelética y crecimiento de los músculos y CG (P<0,05), que los PB, PC y BB, con menor peso al sacrificio y CG. Las medidas morfométricas de la canal muestran que, los DO y ML son compactas y gruesas, resultado de la madurez temprana en la estructura esquelética, en comparación a los BB, PB y PK, que son más largas y tuvieron menor compacidad de la canal. Los DO presentaron un color de grasa blanca a cremosa y los BB y ML de blanca a amarilla. Los PB y DO tuvieron un color de la carne rojizo rosado y los PK rojo intenso. En conclusión, la madurez fisiológica de los diferentes fenotipos de corderos se reflejó en el REND, CONF, medidas morfométricas y CG. Por otra parte, las características propias del sistema de alimentación reflejaron variación en el CGC. Universidad Nacional, Costa Rica 2020-02-02 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion texto application/pdf text/html application/epub+zip video/mp4 https://www.revistas.una.ac.cr/index.php/veterinaria/article/view/13613 10.15359/rcv.38-1.2 Ciencias Veterinarias; Vol. 38 No. 1 (2020): Ciencias Veterinarias (Enero-junio); 17-27 Ciencias Veterinarias; Vol. 38 Núm. 1 (2020): Ciencias Veterinarias (Enero-junio); 17-27 2215-4507 0250-5649 spa https://www.revistas.una.ac.cr/index.php/veterinaria/article/view/13613/18955 https://www.revistas.una.ac.cr/index.php/veterinaria/article/view/13613/18959 https://www.revistas.una.ac.cr/index.php/veterinaria/article/view/13613/18960 https://www.revistas.una.ac.cr/index.php/veterinaria/article/view/13613/19639 Copyright (c) 2020 Revista Ciencias Veterinarias |
| institution |
Universidad Nacional de Costa Rica |
| collection |
Ciencias Veterinarias |
| language |
spa |
| format |
Online |
| author |
Desdémona Martínez, Esmeralda |
| spellingShingle |
Desdémona Martínez, Esmeralda Carcass and meat characteristics of lamb under an intensive feeding system |
| author_facet |
Desdémona Martínez, Esmeralda |
| author_sort |
Desdémona Martínez, Esmeralda |
| title |
Carcass and meat characteristics of lamb under an intensive feeding system |
| title_short |
Carcass and meat characteristics of lamb under an intensive feeding system |
| title_full |
Carcass and meat characteristics of lamb under an intensive feeding system |
| title_fullStr |
Carcass and meat characteristics of lamb under an intensive feeding system |
| title_full_unstemmed |
Carcass and meat characteristics of lamb under an intensive feeding system |
| title_sort |
carcass and meat characteristics of lamb under an intensive feeding system |
| title_alt |
Características de la canal y de la carne de corderos de un sistema intensivo |
| publisher |
Universidad Nacional, Costa Rica |
| publishDate |
2020 |
| url |
https://www.revistas.una.ac.cr/index.php/veterinaria/article/view/13613 |
| work_keys_str_mv |
AT desdemonamartinezesmeralda carcassandmeatcharacteristicsoflambunderanintensivefeedingsystem AT desdemonamartinezesmeralda caracteristicasdelacanalydelacarnedecorderosdeunsistemaintensivo |
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