Performance, carcass, and meat characteristics of beef steers finished on 2 different forages or on a high-concentrate diet

Scaglia, Guillermo; Fontenot, J. P.; Swecker, William S.; Corl, Benjamin A.; Duckett, S. K.; Boland, H.T.; Smith, Ray Lee; Abaye, A. O.

doi:10.15232/s1080-7446(15)30340-5

Cited by 20 publications

(8 citation statements)

References 45 publications

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“…The adaptive value of such a distinct phenotypic flexibility lies in the optimal use of resources without being limited to either a fast growth (which means death at low resource availability) or a slow growth (which would be a competitive disadvantage at high resource availability). Similar variation in diet-dependent growth rates is known in domestic mammals such as cattle (Scaglia et al, 2012), sheep (Borton et al, 2005), or rabbits (Pla, 2008), and in a variety of nondomestic mammals from rodents (Lochmiller et al, 2000) to carnivores (Hofer and East, 1993) and primates (Altmann and Alberts, 2005). They speak against a set growth rate in mammals, as is often assumed in comparative biological studies (Case, 1978).…”

Section: Discussionmentioning

confidence: 71%

Body size and gastrointestinal morphology of nutria (Myocastor coypus) reared on an extensive or intensive feeding regime

Głogowski

Pérez

Clauss

2018

Journal of Animal Science

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Although plasticity of growth rates is mainly associated with ectotherm species, it does occur in endotherms as well, but has not been documented systematically for many species. We compared the effect of two common types of feeding systems, differing in energetic value, on body size and gastrointestinal tract morphology in nutrias (Myocastor coypus). A total of 30 extensively (E) fed and 20 intensively (I) fed animals were used in the study. We noted significant effects of age, sex and feeding regime on body weight and length, with one-year-old females attaining 3.7 ±0.4 kg and 33.4 ±1.5 cm on E and 4.9 ±0.3 kg and 36.1 ±2.3 cm on I. A significant treatment-sex interaction indicated that treatment had a greater effect on the length growth in males (one-year-old males attaining 4.0 ±0.2 kg and 34.7 ±1.2 cm on E and 5.4 ±0.4 kg and 41.0 ±1.4 cm on I). The differences matched individual literature reports of free-ranging or intensively fed nutrias. The majority of gastrointestinal tract measurement results were only related to body weight, without additional effect of the diet regime, except for a higher small intestinal tissue weight on I (79 ±14 g vs 61 ±7 g on E). In contrast, the wet content weight of the stomach, caecum and the total gastrotinestinal tract was higher on E (196 ±34 g vs 164 ±51 g on I). Overall we observed strong influence of dietary regime on body development but not on digestive anatomy, indicating a distinct phenotypic flexibility in growth rates in nutrias.

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Section: Discussionmentioning

confidence: 71%

Body size and gastrointestinal morphology of nutria (Myocastor coypus) reared on an extensive or intensive feeding regime

Głogowski

Pérez

Clauss

2018

Journal of Animal Science

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“…According to Scaglia et al . [ 41 ], the fattening of beef cattle using forage or concentrate will produce carcass with tenderness not far different from each other.…”

Section: Discussionmentioning

confidence: 99%

The effect of complete feed to carcass characteristics and meat quality of male Bali cattle fattened in West Timor, Indonesia

2020

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Aim: This research aimed to know the effect of the use of complete feed on Bali cattle fattening performance seen from the carcass characteristics. Materials and Methods: The cattle employed in this research were 12 male Bali cattle aged between 2 and 2.5 years old based on the teeth estimation. The average initial body weight of the cattle during the research was 181.50±16.51 kg. The complete feed contained Gliricidia sepium, natural grass, ground corn, bran pollard, and rice bran which have been compiled into three types of ration of T1, T2, and T3. The T1 ration contained standard crude protein (CP) and high energy (11% CP; 72% total digestible nutrient [TDN]), and T2 contained medium protein and high energy (13% CP; 72% TDN), while T3 ration contained high protein and high energy (%15 CP; 72% TDN). Results: The meat percentage of T2 and T3 was relatively the same, but higher than T1 (p<0.05). The bone percentage and meat: A bone ratio of T2 was higher than T1; in contrast, and T3 was relatively the same with T2 and T1 (p<0.05). The weight of slaughter, carcass percentage, and weight of meat, bone, and fat were relatively the same among the treatments. Conclusion: The application of complete feed with protein source from G. sepium with CP and TDN of 13 and 72%, respectively, can improve carcass percentage and meat: A bone ratio of male Bali cattle fattening. The treatments have not had a positive effect on slaughter weight (kg), hot and cool carcass weight (kg), meat and fat weight (kg), fat percentage, and non-carcass (kg).

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“…A luminosidade da gordura tem muita variação entre os experimentos, entretanto a predominância da cor amarela, como encontramos em nosso experimento foi observada também por Realini et al (2009), Kerth et al (2007), Scaglia et al (2012) e Duckett et al (2013). Todos os autores relacionaram a coloração amarela da gordura à presença de carotenos provenientes das pastagens, principalmente às mais jovens, o que explica os resultados encontrados no presente estudo, visto que a intensidade da cor amarela (0h) foi maior para AP e para CC, grupo que recebeu silagem de milho como fonte de volumoso.…”

Section: Parâmetrosunclassified

“…eScaglia et al (2012) em experimento com animais Angus. EntretantoRealini et al (2004) eKerth et al (2007) não encontraram diferença na coloração da carne.…”

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Diferentes sistemas de terminação e seus efeitos na carcaça e carne de novilhos angus superprecoces

et al. 2021

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O objetivo deste trabalho foi avaliar características da carcaça, qualidade e atributos sensoriais da carne de novilhos Angus terminados em diferentes sistemas. Foram avaliadas três dietas de terminação: confinamento convencional (CC) baseado em silagem de milho e um concentrado comercial; confinamento alto grão (AG) composto de 85% milho grão + 15% de concentrado proteico-vitamínico-mineral; a pasto (AP) com suplementação energética de milho a 0,8% do peso vivo (PV), com pastagens de aveia, azevém, festuca e trevo mais 0,8% do peso vivo de milho grão durante 30 dias pré-abate. Foram utilizados 31 bovinos Aberdeen Angus castrados, com média de 12±2 meses de idade e peso inicial de 315±5 kg. A carne dos animais confinados (CC e AG) apresentou maior maciez (p<0,0064) e intensidade de cor vermelha (p<0,0001); os animais apresentaram maior área de olho de lombo (p<0,036); na análise sensorial, maior suculência (p=0,0021), maciez (p<0,0001) e aceitabilidade geral (p=0,0054) foram relatadas. Animais do tratamento AG apresentaram maior rendimento de carcaça (p<0,001) e espessura de gordura subcutânea (p<0,001). A coloração amarela da gordura (0h) foi maior nos tratamentos CC e AP (p<0,0426). Houve variação entre os valores de pH no abate (0h), após resfriamento (24h) e da carne (48h) entre os tratamentos, entretanto dentro dos padrões. Foi produzida uma carne com maior qualidade, principalmente em termos de rendimento de carcaça, maciez e coloração da carne na terminação em confinamento. Na análise sensorial, consumidores preferiram a carne de animais confinados, CC ou AG, frente à carne de animais terminados a pasto com suplementação energética.

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Performance, carcass, and meat characteristics of beef steers finished on 2 different forages or on a high-concentrate diet

Cited by 20 publications

References 45 publications

Body size and gastrointestinal morphology of nutria (Myocastor coypus) reared on an extensive or intensive feeding regime

Body size and gastrointestinal morphology of nutria (Myocastor coypus) reared on an extensive or intensive feeding regime

The effect of complete feed to carcass characteristics and meat quality of male Bali cattle fattened in West Timor, Indonesia

Diferentes sistemas de terminação e seus efeitos na carcaça e carne de novilhos angus superprecoces

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