Development and composition of Corriedale lamb carcasses obtained in a traditional production system
Changes in carcass composition, regional and tissue component of 20 Corriedale lambs, from birth to 5 months of age were recorded. Feed level (running on natural pastures) management and production level are similar to the average in Uruguay. At 140 d of age, carcass weight was 12.35 kg. At 3 months of age, growth was slower due to low pasture quality. The study of carcass composition showed that break point for fat increase, was at 9 - 10 kg carcass weight. Allometric coeficient of growth of different regions were: loin/flank, 1.28; breast, 1.24: neck, 1.04: ribs, 1.04; leg, 1.01 and shoulder, 0.97. The coefficient for meat was 1.40 (fat, 1.87; water, 1.22; protein, 0.98), for bone, 0.80. The highest bone development was sternum, ribs, scapula and coxae. Carcass increasead in length by 60 %, width 76% and highth 43%. It is concluded that with this breed it is not possible to produce carcass of more than 10 - 12 kg without a significant increase of fat content, unless a selection program is established.
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Sociedad de Medicina Veterinaria del Uruguay (SMVU)
1990
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rev-smvu-uy-article-6882021-02-05T14:47:05Z Development and composition of Corriedale lamb carcasses obtained in a traditional production system Desarrollo y composición de carcasas de corderos Corriedale obtenidas en un sistema de producción tradicional Kremer, R. Lorenzi, P. Barbato, G. Salcedo, M. Corriedale Composición de la carcasa Pasturas naturales Alimentación Corriedale Carcass composition Natural pasture Feeding Changes in carcass composition, regional and tissue component of 20 Corriedale lambs, from birth to 5 months of age were recorded. Feed level (running on natural pastures) management and production level are similar to the average in Uruguay. At 140 d of age, carcass weight was 12.35 kg. At 3 months of age, growth was slower due to low pasture quality. The study of carcass composition showed that break point for fat increase, was at 9 - 10 kg carcass weight. Allometric coeficient of growth of different regions were: loin/flank, 1.28; breast, 1.24: neck, 1.04: ribs, 1.04; leg, 1.01 and shoulder, 0.97. The coefficient for meat was 1.40 (fat, 1.87; water, 1.22; protein, 0.98), for bone, 0.80. The highest bone development was sternum, ribs, scapula and coxae. Carcass increasead in length by 60 %, width 76% and highth 43%. It is concluded that with this breed it is not possible to produce carcass of more than 10 - 12 kg without a significant increase of fat content, unless a selection program is established. En este ensayo se estudian la variación de la composición de carcasas y el desarrollo regional y de tejidos de 20 corderos Corriedale desde el nacimiento hasta el destete a los 5 meses. La alimentación (sobre pasturas nativas), el manejo y los índices productivos obtenidos son similares al promedio del Uruguay. A los 140 días el peso de carcasa fue de 12.35 kg. A los 3 meses hubo una detención del crecimiento de carcasa por poca calidad de la pastura. Estudios de composición de carcasa indican que el período de transición de preengrasamiento a comienzo del engrasamiento se ubicó en los 9-10 kg de carcasa. El estudio regional indicó los siguientes coeficientes alométricos: lomo/flanco, 1.28; pecho, 1.24; cogote, 1.04; costillar, 1.04; pierna, 1.01; paleta, 0.97. Los tejidos blancos tuvieron un índice alométrico de 1.40 (grasa, 1.87; agua, 1.22 y proteína, 0.98) y hueso de 0.80. En esta etapa el mayor desarrollo óseo correspondió al esternón, costillas, escápula y coxal. En medidas lineales el largo de carcasa aumentó un 60%, el ancho de cadera 76% y el largo de pierna 43%. Se concluye que con esta raza no es posible producir corderos magros de más de 10-12 kg de carcasa, a menos que se implementen programas de selección adecuados. Sociedad de Medicina Veterinaria del Uruguay (SMVU) 1990-06-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed article. Artículo evaluado por pares. Artigo revisado por pares. application/pdf https://www.revistasmvu.com.uy/index.php/smvu/article/view/688 Veterinaria (Montevideo); Vol. 26 No. 108 (1990): April - June; 5-11 Veterinaria (Montevideo); Vol. 26 Núm. 108 (1990): Abril - Junio; 5-11 Veterinaria (Montevideo); v. 26 n. 108 (1990): Abril - Junho; 5-11 1688-4809 0376-4362 spa https://www.revistasmvu.com.uy/index.php/smvu/article/view/688/443 Derechos de autor 1990 Sociedad de Medicina Veterinaria del Uruguay |
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author |
Kremer, R. Lorenzi, P. Barbato, G. Salcedo, M. |
spellingShingle |
Kremer, R. Lorenzi, P. Barbato, G. Salcedo, M. Development and composition of Corriedale lamb carcasses obtained in a traditional production system |
author_facet |
Kremer, R. Lorenzi, P. Barbato, G. Salcedo, M. |
author_sort |
Kremer, R. |
title |
Development and composition of Corriedale lamb carcasses obtained in a traditional production system |
title_short |
Development and composition of Corriedale lamb carcasses obtained in a traditional production system |
title_full |
Development and composition of Corriedale lamb carcasses obtained in a traditional production system |
title_fullStr |
Development and composition of Corriedale lamb carcasses obtained in a traditional production system |
title_full_unstemmed |
Development and composition of Corriedale lamb carcasses obtained in a traditional production system |
title_sort |
development and composition of corriedale lamb carcasses obtained in a traditional production system |
description |
Changes in carcass composition, regional and tissue component of 20 Corriedale lambs, from birth to 5 months of age were recorded. Feed level (running on natural pastures) management and production level are similar to the average in Uruguay. At 140 d of age, carcass weight was 12.35 kg. At 3 months of age, growth was slower due to low pasture quality. The study of carcass composition showed that break point for fat increase, was at 9 - 10 kg carcass weight. Allometric coeficient of growth of different regions were: loin/flank, 1.28; breast, 1.24: neck, 1.04: ribs, 1.04; leg, 1.01 and shoulder, 0.97. The coefficient for meat was 1.40 (fat, 1.87; water, 1.22; protein, 0.98), for bone, 0.80. The highest bone development was sternum, ribs, scapula and coxae. Carcass increasead in length by 60 %, width 76% and highth 43%. It is concluded that with this breed it is not possible to produce carcass of more than 10 - 12 kg without a significant increase of fat content, unless a selection program is established. |
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Sociedad de Medicina Veterinaria del Uruguay (SMVU) |
publishDate |
1990 |
url |
https://www.revistasmvu.com.uy/index.php/smvu/article/view/688 |
work_keys_str_mv |
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