Gluteus medius and rump fat depths as additional live animal ultrasound measurements for predicting retail product and trimmable fat in beef carcasses.

Realini, C.E.; Williams, Ralph E.; Pringle, T. D.; Bertrand, J. K.

doi:10.2527/2001.7961378x

Cited by 59 publications

(81 citation statements)

References 12 publications

(24 reference statements)

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“…O resultado do RCTT deste estudo está na amplitude de variação de 36,37 a 76,2%, obtidas por diversos autores na literatura (Crouse & Dikeman, 1976;Herring et al, 1994;Hamlin et al, 1995a;Williams et al, 1997;May et al, 2000;Realini et al, 2001;Greiner et al, 2003;Tait et al, 2005). O desvio-padrão do RCTT de 1,67% foi semelhante ao obtido por Herring et al (1994), 1,60%.…”

Section: Resultsunclassified

“…O desvio-padrão do RCTT de 1,67% foi semelhante ao obtido por Herring et al (1994), 1,60%. Entretanto, resultados superiores foram obtidos por Crouse & Dikeman (1976), 3,59%; Hamlin et al (1995a), 4,10%; Williams et al (1997), 3,30%; May et al (2000), 2,94%; Realini et al (2001), 2,5%; Greiner et al (2003), 4,2%; e Tait et al (2005), 2,22%, o que está relacionado à variação fenotípica dos tipos biológicos dos animais, à porcentagem de gordura na carcaça, aos sistemas de toaletes adotados nas carcaças e aos cortes utilizados pelos autores em suas amostragens. A magnitude da variação fenotípica desta característica depende altamente da composição genética dos indivíduos, do manejo nutricional prévio, do sexo, da idade e do peso na data das avaliações.…”

Section: Resultsunclassified

“…Utilizando diferentes procedimentos de corte para tamanho, localização, grau de acabamento das carcaças, raça e peso de abate, outros autores (Perkins, 1992;Herring et al, 1994;Williams et al, 1997;Realini et al, 2001;Greiner et al, 2003) obtiveram resultados semelhantes, de modo que o peso vivo foi a variável mais estreitamente correlacionada ao peso da porção comestível da carcaça, com coeficientes de correlação linear simples de 0,77 a 0,91. Resultados similares foram obtidos por Abraham et al (1968), r = 0,95; Busch et al (1968), r = 0,89;Cross et al (1973), r = 0,88; Williams et al (1997), r = 0,90; Realini et al (2001), r = 0,90; Greiner et al (2003), r = 0,83, entre o peso de carcaça e o peso da porção comestível da carcaça.…”

Section: Resultsunclassified

“…O PVUS não foi correlacionado significativamente (r = -0,06, P = 0,5299) com o RCTT, o que está de acordo com os resultados de Wallace et al (1977), Williams et al (1997), May et al (2000) e Realini et al (2001), que reportaram que o peso vivo não é uma variável correlacionada significativamente (r = 0,01, P>0,05; r = -0,22, P>0,05; (r = 0,02, P>0,05; e r = -20, P>0,05, respectivamente) com a porcentagem de cortes comerciais da carcaça. O resultado obtido neste experimento pode ser atribuído à pequena porcentagem da porção comestível do traseiro (8,70%) em relação ao peso vivo dos animais e à pequena variação nesta característica (DP= 2,68 kg).…”

Section: Resultsunclassified

“…Resultados similares em relação à magnitude das relações entre a AOLUS e a porcentagem de cortes comerciais da carcaça, de r = 0,40 e r = 0,30, foram obtidos por Realini et al (2001) e Tait et al (2005; respectivamente. Coeficiente de correlação mais baixo, porém significativo (r = 0,17, P<0,10), foi obtido Greiner et al (2003).…”

Section: Resultsunclassified

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Comparação entre medidas ultra-sônicas e da carcaça na predição da composição corporal em bovinos: estimativas do peso e da porcentagem dos cortes comerciais do traseiro

Tarouco¹,

Lobato

Tarouco³

et al. 2007

R. Bras. Zootec.

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Correspondências devem ser enviadas para: tarouco@usp.com.br RESUMO -Foram utilizados 102 animais para desenvolver equações de predição a fim de estimar a composição do corte traseiro da carcaça bovina a partir de medidas ultra-sônicas obtidas no animal vivo e comparar estas equações às desenvolvidas a partir de medidas na carcaça. As equações de predição foram desenvolvidas utilizando-se o procedimento estatístico de seleção Results indicate that composition predictions equations developed from live animals and ultrasound measurements can be useful to estimate yield hind-quarter retail product. Revista Brasileira de Zootecnia

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Section: Resultsunclassified

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Comparação entre medidas ultra-sônicas e da carcaça na predição da composição corporal em bovinos: estimativas do peso e da porcentagem dos cortes comerciais do traseiro

Tarouco¹,

Lobato

Tarouco³

et al. 2007

R. Bras. Zootec.

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Ultrasound measurements of live and carcass traits in Tswana goat kids raised under semi-intensive system in South-eastern Botswana

Monau¹,

Nsoso²,

Waugh³

et al. 2012

Trop Anim Health Prod

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The aim of this study was to characterise ultrasound measurements of live and carcass traits in intact males, females and castrated Tswana goat kids from birth to 12 months of age raised under semi-intensive system in South-eastern Botswana. Measurements were recorded in 15 castrates, 15 intact males and 15 female Tswana goat kids randomly selected at birth. Ultrasonic fat and muscle depths were measured at the first, third/fourth, sixth/seventh, ninth/tenth and 12th/13th thoracic; first, third and fifth lumbar and first, second/third and fourth/fifth sternal vertebrae, fortnightly for the first 6 months and then monthly for the remaining 6 months. The animals were stunned and humanely slaughtered at 12 months of age, and ultrasound and shatterproof ruler were used to measure fat and muscle depths on the carcasses at similar sites as on live animals. A real-time B-mode ultrasound scanner fitted with LV2-1 probe operating at 7.5 MHz (Explorer V5 Vet Laptop B-Ultrasonic Scanner UMC Technology Development Co., Ltd, China) was used to predict ultrasound measurements on live animals and their carcasses. Data were analysed using general linear model in statistical analysis system. Muscle depth measurements increased significantly (p < 0.05) with age in all sites of measurements. However, there was no significant difference between the sexes at different sites of muscle depth measurements at the same age. Muscle depth at the sternal vertebrae was significantly deeper (almost 55 mm at 12 months of age) than 16 mm at thoracic and 16 mm at lumbar vertebrae at 12 and 8 months of age, respectively. No subcutaneous fat depth measurements were recorded in the lumbar vertebrae (0.00 ± 0.00) and the thoracic (0.00 ± 0.00) regions in all sex groups. However, fourth and fifth sternal vertebrae showed considerably deeper amount of subcutaneous fat suitable for taking fat measurements as age increases (2.07 ± 0.23 mm females, 1.50 ± 0.43 mm intact males and 1.80 ± 0.38 mm castrates) at 12 months of age. All correlations between live and carcass ultrasound measurements and also between ultrasound carcass and ruler measurements were very high (r (2) = 0.96 to 1.00) for all the sexes indicating that live ultrasound measurements are suitable for use in this meat breed. More research is needed to evaluate the relationships between live ultrasonic measurements and carcass yield in the different sexes of Tswana goat kids.

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Triticale Dried Distillers' Grain Increases Alpha‐Linolenic Acid in Subcutaneous Fat of Beef Cattle Fed Oilseeds

Sultana

Oba

et al. 2012

Lipids

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This study investigated the effect of triticale dried distillers' grain with solubles (DDGS), flax (FS) and sunflower (SS) seed on growth and the fatty acid profile of subcutaneous (SQ) fat in individually housed steers (n = 15 per diet) fed ad libitum (DM basis); (1) control (CON) 90% barley grain + 10% barley silage; or substitution of barley grain for: (2) 30% DDGS; (3) 10% FS; (4) 30% DDGS + 8.5% FS; (5) 10% SS and (6) 30% DDGS + 8.5% SS. Oilseeds in the combination diets were reduced to maintain diet lipid levels below 9% DM and to determine if favorable changes in the fatty acid profile could be maintained or enhanced at reduced levels of oilseed. Plasma and SQ fat biopsies were collected at 0, 6, and 12 weeks. Inclusion of DDGS decreased (P < 0.05) average daily gain, feed conversion and backfat thickness. Feeding FS increased (P < 0.05) plasma ALA compared to CON and SS and consistently increased (P < 0.01) ALA and non-conjugated and non-methylene interrupted dienes (NCD), whereas SS tended to decrease ALA in fat. Inclusion of DDGS with FS further increased (P < 0.02) ALA and decreased (P < 0.05) NCD and 18:1-t10 in fat. The fact that the levels of n-3 fatty acids in SQ fat from steers fed DDGS + FS were higher than those obtained with FS alone, has obvious benefits to the practical cost of favorably manipulating fatty acid profiles in beef.

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Gluteus medius and rump fat depths as additional live animal ultrasound measurements for predicting retail product and trimmable fat in beef carcasses.

Cited by 59 publications

References 12 publications

Comparação entre medidas ultra-sônicas e da carcaça na predição da composição corporal em bovinos: estimativas do peso e da porcentagem dos cortes comerciais do traseiro

Comparação entre medidas ultra-sônicas e da carcaça na predição da composição corporal em bovinos: estimativas do peso e da porcentagem dos cortes comerciais do traseiro

Ultrasound measurements of live and carcass traits in Tswana goat kids raised under semi-intensive system in South-eastern Botswana

Triticale Dried Distillers' Grain Increases Alpha‐Linolenic Acid in Subcutaneous Fat of Beef Cattle Fed Oilseeds

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