Dieta com alto teor de gordura e desempenho de tourinhos de grupos genéticos diferentes em confinamento

Souza, Aparecido Ribeiro de; Medeiros, S. R. de; Morais, Maria da Graça; Oshiro, Maurílio Massaharu; Júnior, Roberto Augusto de Almeida Torres

doi:10.1590/s0100-204x2009000700015

Cited by 13 publications

(12 citation statements)

References 24 publications

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“…Therefore, carcass must provide maximum amount of muscle, minimum of bone, and an amount of fat that varies depending on consumer preference. The proximate composition of the beef was similar between treatments and with values similar to those obtained by Lawler et al (2004), Freitas et al (2008), Razook et al (2002), Rubiano et al (2009), Souza et al (2009), and Sestari et al (2012, when working with Nelore cattle. The exception is ether extract content, which was lower, possibly due to the lower energy density of the diets used in this study compared with the aforementioned authors, who aimed at higher weight gain.…”

Section: Discussionsupporting

confidence: 78%

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Carcass characteristics and meat evaluation of Nelore cattle subjected to different antioxidant treatments

et al. 2017

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-Forty Nelore cattle were used to evaluate the effects of supplementation with different antioxidants on carcass characteristics and meat quality of feedlot cattle. Animals were fed Brachiaria brizantha hay and subjected to five treatments (control and four antioxidants: zinc, selenium, vitamin E, and selenium + vitamin E). After a 105-day feeding period, cattle were slaughtered. Tissue composition, as well as carcass proximate composition, color, tenderness, pH, and fatty acid profile were evaluated. Analysis of variance was carried out and means compared by Tukey test at 0.05 probability. The group fed selenium showed the lowest muscle amount (66.61 g/100 g) compared with the other antioxidants evaluated. There was no difference among treatments for bone, fat, and comestible portion percentages as well as muscle:bone, muscle: fat, and comestible portion:bone ratios, with mean values of 16.85 g/100 g, 14.70 g/100 g, 82.99 g/100 g, 4.06, 4.85, and 4.95, respectively. Neither brightness, red, or yellow contents of the meat nor carcass pH were affected by treatments. For tenderness and losses during thawing and cooking, there were no differences among treatments, with averages of 6.43 kgf cm 2 , 3.22 g/100 g, and 21.15 g/100 g, respectively. Supplementation of Nelore cattle fed Brachiaria brizantha hay with antioxidants do not influence carcass characteristics or meat quality. However, vitamin E supplementation reduces the levels of omega 3 fatty acid, whereas supplementation with selenium + vitamin E promotes an increase in linoleic and palmitoleic acids and a decrease in myristoleic acid, making the supplementation feasible due to the beneficial effects provided by these acids.

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Section: Discussionsupporting

confidence: 78%

“…These tissue proportions can be explained by the grazing system and were similar to those reported by several authors working with Nelore and their crossbreds fed Brachiaria sp., with or without supplementation of corn and wheat bran (Razook et al, 2002;Vaz et al, 2002;Ribeiro et al, 2004;Freitas et al, 2008;Souza et al, 2009). …”

Section: Discussionmentioning

confidence: 99%

Carcass characteristics and meat evaluation of Nelore cattle subjected to different antioxidant treatments

et al. 2017

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“…A massa de forragem disponível durante todo o período experimental sempre foi superior a 4.823kg de MS/ha, ou seja, maior que os 2.000kg de MS/ha, considerados por Minson (1990) A literatura demonstrou efeito do grão de soja "in natura" ou tostado na redução do consumo de MS (4 a 27%) em experimentos com diferentes inclusões do grão (13 a 27% na MS) tanto na dieta de bovinos como de outras espécies (Vargas et al, 2002;Jordan et al, 2006;Oliveira et al, 2007;Silva et al, 2007;Souza et al, 2009 Concentrados: T0; T1,3; T2,6 e T3,9 -suplementos concentrados sem inclusão de grão de soja tostado (GST) e com inclusão de 1,3; 2,6 e 3,9kg de GST (base matéria natural); EPM = Erro-padrão da média ; ns = não-significativo (P>0,05); AG = ácidos graxos.…”

Section: Resultsunclassified

Desempenho, composição do leite e metabólitos sanguíneos de vacas Holandês x Gir manejadas em pastagem de Brachiaria brizantha cv. Marandu e suplementadas com grão de soja tostado

Mourthé¹,

Reis²,

Lopes

et al. 2012

Arq. Bras. Med. Vet. Zootec.

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“…In addition, animals from industrial cross-breeding (½ Angus) are slaughtered one generation before those which come from absorbent crossbreeding (¾ Angus), thus increasing the turnover of animals in the production system, reflecting in a greater number of animals slaughtered for a particular period of time. Some authors have observed different results, in which pure Nelore cattle presented lower weights at slaughter in extra-young systems when compared to European breeds (PEREIRA et al, 2009;RUBIANO et al, 2009;SOUZA et al, 2009). This is possibly due to differences in the environmental conditions in which the experiments were conducted.…”

Section: Resultsmentioning

confidence: 99%

Carcass and meet characteristics of very young Angus x Nelore steers in the Agreste Potiguar region

Façanha¹,

Leite²,

Queiroga³

et al. 2014

Rev. Ciênc. Agron.

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-This work aimed to evaluate the quantitative and qualitative characteristics of the carcass and meat of very young steers, ½ Red Angus x Nelore (NEL) and ¾ Red Angus x Nelore (RED). Fifty males were used, 25 from each genetic group, fed in feedlots from weaning (7 months) until reaching the age for slaughter (15 months). A difference was observed between the genetic groups for gains at weaning (158.57 kg NEL and 181.60 kg RED ) but the weight at slaughter showed no statistical differences (412.33 kg NEL and 426.53 kg RED). Cold and hot carcass yield was not affected by the genetic group, with NEL bovines showing a yield of 50.49% and 52.55% and the RED of 50.91% and 52.89% respectively. The percentage of muscle (55% NEL and 53% RED), fat (26% NEL and 27% RED), bone (18% NEL and 18% RED), and thickness of subcutaneous fat (4.1 mm NEL and 4.0 mm RED) were similar for both genetic groups. The ¾ Angus x Nelore animals showed a higher loss when thawing (9.05%). There was no difference in such sensory characteristics as overall impression, tenderness, juiciness and shear force in the evaluated genotypes. The genetic groups showed a similarity of characteristics for meat as well as carcass. RESUMO -Objetivou-se avaliar as características quantitativas e qualitativas de carcaça e da carne de novilhos superprecoces ½ Red Angus x Nelore (NEL) e ¾ Red Angus x Nelore (RED). Foram utilizados 50 machos, sendo 25 de cada grupo genético, alimentados em confinamento desde o desmame (7 meses) até atingirem idade para abate (15 meses). Foi verificado diferença entre os grupos genéticos para os ganhos na desmama (158,57 kg NEL e 181,60 kg RED) e o peso ao abate não apresentou diferenças estatísticas (412,33 kg NEL e 426,53 kg RED). O rendimento de carcaça fria e quente não foi influenciado pelo grupo genético, com os bovinos NEL apresentando rendimento de 50,49 e 52,55% e os RED 50,91 e 52,89%, respectivamente. As porcentagens de músculo (55% NEL e 53% RED), gordura (26% NEL e 27% RED), osso (18% NEL e 18% RED), e espessura de gordura subcutânea (4,1 mm NEL e 4,0 mm RED) foram similares em ambos os grupos genéticos. Animais ¾ Angus x ½ Nelore apresentaram maior perda por descongelamento (9,05%). Não houve diferença para as características sensoriais como impressão global, maciez, suculência e força de cisalhamento nos genótipos avaliados. Os grupos genéticos apresentaram similaridade das características tanto da carne quanto da carcaça. Palavras-chave:Composição da carcaça. Confinamento. Espessura de gordura. Maciez.

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Dieta com alto teor de gordura e desempenho de tourinhos de grupos genéticos diferentes em confinamento

Cited by 13 publications

References 24 publications

Carcass characteristics and meat evaluation of Nelore cattle subjected to different antioxidant treatments

Carcass characteristics and meat evaluation of Nelore cattle subjected to different antioxidant treatments

Desempenho, composição do leite e metabólitos sanguíneos de vacas Holandês x Gir manejadas em pastagem de Brachiaria brizantha cv. Marandu e suplementadas com grão de soja tostado

Carcass and meet characteristics of very young Angus x Nelore steers in the Agreste Potiguar region

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