Composição física da carcaça e qualidade da carne de novilhos Charolês e Nelore que receberam diferentes proporções de concentrado na dieta

Silveira, Magali Floriano da; Brondani, Ivan Luiz; Arboitte, Miguelângelo Ziegler; Filho, Dari Celestino Alves; Restle, João; Pizzuti, Luiz Ângelo Damian; Luz, T. R. R; Retore, M.

doi:10.1590/s0102-09352009000200026

Cited by 6 publications

(9 citation statements)

References 22 publications

(11 reference statements)

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“…According to Owens et al, (1993) the excess of nutrients can be converted into lipids, excreted or catabolized. Silveira et al (2009) did not find differences in the carcass composition of animals fed diets with different energy densities above the maintenance level, attributing the lack of differences to the slaughter weight, as it is highly correlated to the quantitative characteristics of the carcass.…”

Section: Resultsmentioning

confidence: 77%

“…The lower tissue deposition in Nellore animals addressed the lower carcass gain in these animals (0.640) compared with the crossbred animals (0.860). Crossbred animals had greater gain probably due to the heterosis effect (Teixeira & Albuquerque, 2005). It can be inferred that Nellore cattle need more time at the feedlot to reach the slaughter weight and adequate finishing score due to their lower muscle growth rate (Bianchini, 2005) compared with the other genetic types evaluated in this trial.…”

Section: Resultsmentioning

confidence: 88%

“…After analyzing the available ingredients, the diets were formulated to be isonitrogenous with 12.5% crude protein (CP). The animal feed intake was estimated as suggested by Valadares Filho et al (2006) and the macro and micro minerals requirements were adjusted according to the NRC (1996). Diets were fed as total mixed ration (roughage + concentrate) and cattle were fed twice daily (at 06h30 and 15h30) allowing for up to 5-10% of orts.…”

Section: Methodsmentioning

confidence: 99%

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Pattern of tissue deposition, gain and body composition of Nellore, F1 Simmental × Nellore and F1 Angus × Nellore steers fed at maintenance or ad libitum with two levels of concentrate in the diet

et al. 2011

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-Sixty 18-month-old steers (20 Nellore, 20 F 1 Simmental × Nellore and 20 F 1 Angus × Nellore with average body weight of 265.6±6.4 kg; 325.3±4.7 kg and 324.6±6.0 kg, respectively) were used. The effects of feeding regime and genetic group on physical carcass composition, empty body composition, composition of the gain, as well as the pattern of tissue deposition were evaluated in this trial. The interaction between genetic group and feeding regime was not significant for any variable evaluated. Animals fed at the maintenance level produced carcass with larger proportions of bones and muscle than the animals fed ad libitum and Nellore animals had larger muscle portion and smaller adipose tissue portion on the carcass than the crossbred animals. Nellore animals and those fed at maintenance had smaller amount of total fat in the carcass than the crossbred animals and those fed ad libitum, respectively. Fat was deposited more pronouncedly in the intermuscular depot, followed by the visceral depot. The rate of deposition of the carcass tissues was smaller in the Nellore animals and in the animals fed the diet with concentrate allowance equivalent to 1% body weight (except for subcutaneous fat tissue), when compared with the crossbred animals and those fed the diet with 2% BW on concentrate, respectively. The rate of fat deposition on the visceral depot was larger in the F 1 Angus × Nellore animals and on those fed the 2% of BW of concentrate diet when compared with F 1 Simmental × Nellore animals and those fed the diet with the lowest concentrate allowance (1% BW).

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Section: Resultsmentioning

confidence: 77%

Section: Resultsmentioning

confidence: 88%

Section: Methodsmentioning

confidence: 99%

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Pattern of tissue deposition, gain and body composition of Nellore, F1 Simmental × Nellore and F1 Angus × Nellore steers fed at maintenance or ad libitum with two levels of concentrate in the diet

et al. 2011

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“…Silveira et al (2009) found that increasing the concentrate content reduced liquid loss in Charolais young bulls, but not in Nellore young bulls. Menezes et al (2005) found that subcutaneous fat thickness was not changed in Charolais young bulls' carcass, but this characteristic showed quadratic variation with the advance of concentrate in the ration of Nellore young bulls.…”

Section: Introductionmentioning

confidence: 89%

“…However, data related to the use of grass silage in the ration of feedlot cattle are still limited, especially regarding the effect on carcass characteristics and beef meat. In general, studies have shown that increasing the proportion of traditional silages (maize and sorghum) in the diet may harm important carcass characteristics (thawing loss, physiological maturity and pistol cut proportion) and meat characteristics (tenderness, texture and color) (SILVEIRA et al, 2009;MISSIO et al, 2010). However, some studies (CRUZ et al, 2014(CRUZ et al, , 2015a(CRUZ et al, , 2015b have shown that diets with high concentrate levels did not affect the performance and carcass characteristics of feedlot beef cattle, wherein the higher grass silage content of diets (350 vs. 190 g/kg) reduced feeding cost.…”

Section: Introductionmentioning

confidence: 99%

Carcass and meat of two genetic groups of cattle fed two levels of grass-Convert silage in feedlot

Missio

Silva

Alexandrino

et al. 2017

SCA

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Assessment of carcass and meat characteristics of Nellore young bulls or dairy crossbred young bulls fed two levels of grass-Convert silage in the rations (400 and 100 g kg -1 of dry matter). Sixteen Nellore young bulls and 16 dual-purpose dairy young bulls (Holstein x Gir and Holstein x Guzerá) with average initial body weight of 378.8±13.8 kg were used. The experimental design was completely randomized with treatments in a 2x2 factorial arrangement. The proportion of silage and the genetic group did not change the percentage of muscle, fat and bone of the carcass. The yield of the primary commercial cuts was not altered by the level of silage. The pistol cut weight was higher in Nellore young bulls compared to dairy crossbred young bulls (125.8 vs. 119.5 kg), while the relative weight of short ribs was higher in dairy crossbreds (11.9 vs. 11.5%). Only the muscle cut of the pistol was altered by silage proportion in the rations, being higher in those with the lowest proportion of grass silage. On the other hand, only the relative weight of flat, rump cap and edible lean trims were altered by genetic group, which were higher in Nellore young bulls. Among the characteristics of the meat, only marbling was significantly changed, being higher in dairy crossbreds fed rations with a lower grass-silage proportion. The genetic group did not alter the other meat characteristics. Nellore young bulls produce carcasses with higher yield of valuable meat cuts in relation to dairy crossbred young bulls. Key words: Commercial cuts. Prime cuts. Meat quality. Rump cap. ResumoObjetivou-se avaliar as características de carcaça e carne de tourinhos da raça Nelore ou mestiços leiteiros de dupla aptidão (Holandês x Gir e Holandês x Guzerá) alimentados com dois níveis de silagem de capim-Convert nas dietas (400 e 100 g kg -1 de matéria seca e osso da carcaça. O rendimento dos cortes comerciais primários não foi alterado pelo nível de silagem. O peso do traseiro especial foi superior nos tourinhos Nelore em relação aos mestiços leiteiros (125,8 vs 119,5 kg), enquanto o peso relativo da ponta de agulha foi superior nos mestiços leiteiros (11,9 vs 11,5%). Somente o corte denominado "músculo" do traseiro especial foi alterado pela proporção de silagem nas rações, sendo superior naquelas com menor proporção de volumoso. Por outro lado, apenas o peso relativo do coxão duro, picanha e recortes comestíveis foram alterados pelo grupo genético, que foram superiores nos animais da raça Nelore. Dentre as características da carne, apenas o marmoreio foi alterado significativamente, sendo superior nos mestiços leiteiros que receberam rações com menor proporção de silagem. O grupo genético dos animais não alterou as demais características da carne. Tourinhos da raça Nelore produzem carcaças com maior rendimento de cortes nobres em relação aos mestiços leiteiros.

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Características das carcaças e carne de tourinhos Nelore alimentados com níveis de concentrado e farelo do mesocarpo de babaçu

Cruz

Alexandrino

Missio

et al. 2015

Arq. Bras. Med. Vet. Zootec.

Self Cite

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RESUMOAvaliaram-se as características da carcaça e da carne de tourinhos Nelore alimentados com diferentes níveis de concentrado e farelo do mesocarpo do babaçu na dieta. Foram utilizados 28 tourinhos da raça Nelore, com idade inicial de 21 meses e 356,66±19,25kg de peso corporal inicial, distribuídos inteiramente ao acaso em dietas com dois níveis de concentrado (65 e 71%), associadas ou não à inclusão de 35% de farelo do mesocarpo do babaçu no concentrado. A elevação da fração concentrada na dieta de 65 para 71%, bem como a inclusão de 35% de farelo do mesocarpo do babaçu no concentrado, não alterou a quantidade de músculo, gordura e osso da carcaça, com valores médios de 63,91; 19,46 e 16,63% do peso de carcaça fria, respectivamente. O rendimento dos cortes comerciais secundários do traseiro especial não foi alterado pela inclusão de 35% de farelo do mesocarpo do babaçu no concentrado nem pelo teor de concentrado da dieta. A força ao cisalhamento das fibras musculares, a perda de líquido por descongelamento e cozimento não foram alteradas pelos fatores estudados, apresentando valores médios de 6,57kgf/cm 3 , 16,08% e 22,20%, respectivamente. O marmoreio aumentou (5,78 para 9,79 pontos) pelo avanço do nível de concentrado na dieta, mas não foi alterado pela inclusão do farelo do mesocarpo do babaçu. O farelo do mesocarpo do babaçu apresenta características nutricionais que possibilitam substituir parcialmente o milho em dietas com elevada proporção de concentrado, não alterando a composição física da carcaça e a qualidade da carne de tourinhos Nelore confinados.Palavras-chave: bovinos, cortes comerciais, maciez da carne, perda de líquidos ABSTRACT Carcass characteristics and meat of young bulls fed different levels of concentrate and babassu mesocarp bran in the diet

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Composição física da carcaça e qualidade da carne de novilhos Charolês e Nelore que receberam diferentes proporções de concentrado na dieta

Cited by 6 publications

References 22 publications

Pattern of tissue deposition, gain and body composition of Nellore, F1 Simmental × Nellore and F1 Angus × Nellore steers fed at maintenance or ad libitum with two levels of concentrate in the diet

Pattern of tissue deposition, gain and body composition of Nellore, F1 Simmental × Nellore and F1 Angus × Nellore steers fed at maintenance or ad libitum with two levels of concentrate in the diet

Carcass and meat of two genetic groups of cattle fed two levels of grass-Convert silage in feedlot

Características das carcaças e carne de tourinhos Nelore alimentados com níveis de concentrado e farelo do mesocarpo de babaçu

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