In vivo carcass evaluation and body measurements of Dorper ewe in different age groups

In vivo carcass evaluation and body measurements of Dorper ewe in different age groups

The aim of this study was to correlate the morphometric and carcass characteristics in vivo in Dorper pure of origin ewes in different age groups. We estimated the body condition score (EC), body measurements and analyzed the carcasses by ultrasound of 39 ewes. The data were investigated for normal distribution of the traits and comparison of the means and were submitted to analysis of variance using the effects of age (group G1: 1,4 ≤ 2 years and group G2: 2 < years old ≤ 5,5) and were calculated the correlations between the characteristics. The group G2 presented higher values of  EC (3.54±0.65), height at the withers (AC) (61,21 ± 4,05 cm), height at the rump (AG)  (62.27±2.68 cm), thoracic perimeter (PT) (95.67±6.75 cm), body length (CC) (75,12±6,52), loin eye area (AOL) (13.50±1.83 cm²), width of the L. dorsi muscle (LARG) (5.54±0.62 cm), depth of the L. dorsi muscle (PROF) (2.98±0.48 cm) and subcutaneous fat thickness (EG) (0.51±0.19 cm), than group G1. The characteristics EC, PT, CC, AOL, LARG, PROF, EG and the ratio between width and depth of L. dorsi (MUSC) showed significant P values (<.05), however the characteristics AC and AG didn’t present significant values. Age and EC showed moderate correlations with each other (0.24). Moderate to high pairwise correlations were found between AC, AG, and PT (0.56 to 0.72) (p<0.01). and between AOL, PROF, LARG, MUSC and EG (-0.49 to 0.71) (p<0.01). PT showed a moderate and significant correlation with the measurements of AOL (0.54) (p<0.01), PROF (0.61) (p<0.05) and EG (0.49) (p<0.01). The results showed the possibility of using MUSC for selection of sheep with greater muscularity and PT as selection of sheep with good carcass conformation for in vivo evaluation without using ultrasound.

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Main Authors: Rosa e Paula, Carolina Freitas, Larcerda, Thaís Fitaroni Ramos, Vallejos, Natalia Mercedes, Geraldo, André Torres, Cordeiro, Camila da Conceição, Quirino, Celia Raquel
Format: Digital revista
Language:por
Published: Asociacion Latinoamericana de Produccion Animal 2022
Online Access:https://ojs.alpa.uy/index.php/ojs_files/article/view/2940
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record_format ojs
institution ALPA
collection OJS
country Uruguay
countrycode UY
component Revista
access En linea
databasecode rev-alpa
tag revista
region America del Sur
libraryname Biblioteca ALPA
language por
format Digital
author Rosa e Paula, Carolina Freitas
Larcerda, Thaís Fitaroni Ramos
Vallejos, Natalia Mercedes
Geraldo, André Torres
Cordeiro, Camila da Conceição
Quirino, Celia Raquel
spellingShingle Rosa e Paula, Carolina Freitas
Larcerda, Thaís Fitaroni Ramos
Vallejos, Natalia Mercedes
Geraldo, André Torres
Cordeiro, Camila da Conceição
Quirino, Celia Raquel
In vivo carcass evaluation and body measurements of Dorper ewe in different age groups
author_facet Rosa e Paula, Carolina Freitas
Larcerda, Thaís Fitaroni Ramos
Vallejos, Natalia Mercedes
Geraldo, André Torres
Cordeiro, Camila da Conceição
Quirino, Celia Raquel
author_sort Rosa e Paula, Carolina Freitas
title In vivo carcass evaluation and body measurements of Dorper ewe in different age groups
title_short In vivo carcass evaluation and body measurements of Dorper ewe in different age groups
title_full In vivo carcass evaluation and body measurements of Dorper ewe in different age groups
title_fullStr In vivo carcass evaluation and body measurements of Dorper ewe in different age groups
title_full_unstemmed In vivo carcass evaluation and body measurements of Dorper ewe in different age groups
title_sort in vivo carcass evaluation and body measurements of dorper ewe in different age groups
description The aim of this study was to correlate the morphometric and carcass characteristics in vivo in Dorper pure of origin ewes in different age groups. We estimated the body condition score (EC), body measurements and analyzed the carcasses by ultrasound of 39 ewes. The data were investigated for normal distribution of the traits and comparison of the means and were submitted to analysis of variance using the effects of age (group G1: 1,4 ≤ 2 years and group G2: 2 < years old ≤ 5,5) and were calculated the correlations between the characteristics. The group G2 presented higher values of  EC (3.54±0.65), height at the withers (AC) (61,21 ± 4,05 cm), height at the rump (AG)  (62.27±2.68 cm), thoracic perimeter (PT) (95.67±6.75 cm), body length (CC) (75,12±6,52), loin eye area (AOL) (13.50±1.83 cm²), width of the L. dorsi muscle (LARG) (5.54±0.62 cm), depth of the L. dorsi muscle (PROF) (2.98±0.48 cm) and subcutaneous fat thickness (EG) (0.51±0.19 cm), than group G1. The characteristics EC, PT, CC, AOL, LARG, PROF, EG and the ratio between width and depth of L. dorsi (MUSC) showed significant P values (<.05), however the characteristics AC and AG didn’t present significant values. Age and EC showed moderate correlations with each other (0.24). Moderate to high pairwise correlations were found between AC, AG, and PT (0.56 to 0.72) (p<0.01). and between AOL, PROF, LARG, MUSC and EG (-0.49 to 0.71) (p<0.01). PT showed a moderate and significant correlation with the measurements of AOL (0.54) (p<0.01), PROF (0.61) (p<0.05) and EG (0.49) (p<0.01). The results showed the possibility of using MUSC for selection of sheep with greater muscularity and PT as selection of sheep with good carcass conformation for in vivo evaluation without using ultrasound.
publisher Asociacion Latinoamericana de Produccion Animal
publishDate 2022
url https://ojs.alpa.uy/index.php/ojs_files/article/view/2940
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spelling oai:ojs.ojs.alpa.uy:article-29402022-12-26T05:13:29Z In vivo carcass evaluation and body measurements of Dorper ewe in different age groups Evaluación de canales in vivo y biometría corporal en ovejas Dorper en diferentes grupos de edad Avaliação de carcaça in vivo e biometria corporal em ovelhas Dorper em diferentes faixas etárias Rosa e Paula, Carolina Freitas Larcerda, Thaís Fitaroni Ramos Vallejos, Natalia Mercedes Geraldo, André Torres Cordeiro, Camila da Conceição Quirino, Celia Raquel meat morphometry sheep production ultrasound carne morfometría ovino producción ultrasonido carne morfometria ovelha produção ultrassom The aim of this study was to correlate the morphometric and carcass characteristics in vivo in Dorper pure of origin ewes in different age groups. We estimated the body condition score (EC), body measurements and analyzed the carcasses by ultrasound of 39 ewes. The data were investigated for normal distribution of the traits and comparison of the means and were submitted to analysis of variance using the effects of age (group G1: 1,4 ≤ 2 years and group G2: 2 < years old ≤ 5,5) and were calculated the correlations between the characteristics. The group G2 presented higher values of  EC (3.54±0.65), height at the withers (AC) (61,21 ± 4,05 cm), height at the rump (AG)  (62.27±2.68 cm), thoracic perimeter (PT) (95.67±6.75 cm), body length (CC) (75,12±6,52), loin eye area (AOL) (13.50±1.83 cm²), width of the L. dorsi muscle (LARG) (5.54±0.62 cm), depth of the L. dorsi muscle (PROF) (2.98±0.48 cm) and subcutaneous fat thickness (EG) (0.51±0.19 cm), than group G1. The characteristics EC, PT, CC, AOL, LARG, PROF, EG and the ratio between width and depth of L. dorsi (MUSC) showed significant P values (<.05), however the characteristics AC and AG didn’t present significant values. Age and EC showed moderate correlations with each other (0.24). Moderate to high pairwise correlations were found between AC, AG, and PT (0.56 to 0.72) (p<0.01). and between AOL, PROF, LARG, MUSC and EG (-0.49 to 0.71) (p<0.01). PT showed a moderate and significant correlation with the measurements of AOL (0.54) (p<0.01), PROF (0.61) (p<0.05) and EG (0.49) (p<0.01). The results showed the possibility of using MUSC for selection of sheep with greater muscularity and PT as selection of sheep with good carcass conformation for in vivo evaluation without using ultrasound. El objetivo de este estudio fue correlacionar las características morfométricas y de la canal in vivo en reproductoras Dorper pura de origen a diferentes franjas etarias. Se realizó la determinación de escore corporal (EC), de medidas morfométricas y la ecografía de la canal en 39 ovejas. Se verificó la normalidad de las características, se realizó la comparación de medias, análisis de varianza mediante efectos de la edad (grupo G1: 1,4 ≤ 2 años y grupo G2 2 < años ≤ 5,5) y las correlaciones entre las características medidas. El grupo G2 presentó mayores promedios de EC (3,54±0,65), altura de la cruz (AC) (61,21±4,25 cm), altura de la grupa (AG) (62,27±2,68 cm), circunferencia del pecho (PT) (95,67±6,75 cm), longitud del cuerpo (CC) (75,12±6,52), área del ojo del lomo (AOL) (13,50±1,83 cm²), ancho del músculo L. dorsi (LARG) (5,54±0,62 cm), profundidad del músculo L. dorsi (PROF) (2,98 ±0,48 cm) y espesor de grasa subcutánea (EG) (0,51±0,19 cm) que el grupo G1. Las características EC, PT, CC, AOL, LARG, PROF, EG y la razón entre ancho y profundidad de L. dorsi (MUSC) mostraron valores de P significativos (<.05), pero, las características AC y AG no fueron significativas. La edad y la CE mostraron correlaciones moderadas entre sí (0,24). Se encontraron correlaciones de moderadas a altas entre AC, AG y PT (0,56 a 0,72) (p<0.01) y entre AOL, PROF, CC, MUSC y EG (-0,49 a 0,71) (p<0.01). PT mostró una correlación moderada y significativa con las medidas de AOL (0,54) (p<0.01), PROF (0,61) (p<0.05) y EG (0,49) (p<0.01). Los resultados muestran el posible uso de MUSC para la selección de ovejas con mayor musculatura y de PT como medida auxiliar para la selección de ovejas con buena conformación de la canal en ausencia de ultrasonido para la evaluación de la canal in vivo. Objetivou-se nesse estudo correlacionar as características morfométricas e de carcaça in vivo em matrizes Dorper puras de origem em diferentes faixas etárias.  Foi tomado o escore corporal (EC), medidas morfométricas e feito ultrassom de carcaça em 39 matrizes. Foi feita análise estatística de normalidade das características, comparação das médias, análise de variância utilizando efeitos de idade (grupo G1: de 1,4 ≤ 2 anos de idade; e grupo G2: 2 < idade ≤ 5,5 anos) e calculadas as correlações entre as características. O grupo G2 apresentou maiores médias de EC (3,54 ± 0,65), altura de cernelha (AC) (61,21 ± 4,25 cm), altura de garupa (AG) (62,27 ± 2,68 cm), perímetro torácico (PT) (95,67 ± 6,75 cm), comprimento corporal (CC) (75,12 ± 6,52), área de olho-de-lombo (AOL) (13,50 ± 1,83 cm²), largura do músculo L. dorsi (LARG) (5,54 ± 0,62 cm), profundidade do músculo L. dorsi (PROF) (2,98 ± 0,48 cm) e espessura de gordura subcutânea(EG) (0,51±0,19 cm) que o grupo G1. As características EC, PT, CC, AOL, LARG, PROF, EG e a razão entre largura e profundidade do L. dorsi (MUSC) apresentaram valores de P significativos (<.05), entretanto as características AC e AG não foram significativas. Idade e EC apresentaram correlações moderadas entre si (0,24). Foram encontradas correlações de moderadas a altas entre AC, AG e PT (0,56 a 0,72) (p<0.01) e entre AOL, PROF, MUSC e EG (-0,49 a 0,71) (p<0.01). A medida morfométrica de PT apresentou correlação moderada e significativa com as medidas de AOL (0,54) (p<0.01), PROF (0,61) (p<0.05) e EG (0,49) (p<0.01). Os resultados mostram a possível utilização da MUSC para seleção de ovinos com maior muscularidade e do PT como medida auxiliar para a seleção de ovinos com adequada conformação de carcaça na ausência de ultrassom para avaliação de carcaça in vivo. Asociacion Latinoamericana de Produccion Animal 2022-12-23 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Text Articulo cientifico original Texto Texto application/pdf text/html text/xml https://ojs.alpa.uy/index.php/ojs_files/article/view/2940 10.53588/alpa.300403 Latin American Archives of Animal Production; Vol. 30 No. 4 (2022); 301-310 Archivos Latinoamericanos de Producción Animal; Vol. 30 Núm. 4 (2022); 301-310 2075-8359 1022-1301 por https://ojs.alpa.uy/index.php/ojs_files/article/view/2940/1729 https://ojs.alpa.uy/index.php/ojs_files/article/view/2940/1745 https://ojs.alpa.uy/index.php/ojs_files/article/view/2940/1759 Copyright (c) 2022 Carolina Freitas Rosa e Paula https://creativecommons.org/licenses/by-nc-sa/4.0

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