Effects of feeding high-oil corn to beef steers on carcass characteristics and meat quality.

Andrae, John; Duckett, S. K.; Hunt, C. W.; Pritchard, G T; Owens, F. N.

doi:10.2527/2001.793582x

Cited by 88 publications

(83 citation statements)

References 29 publications

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“…Higher values were obtained by Andrae et al (2001), who evaluated diets containing maize with high oil levels in confi ned young bulls, with an average obtained value of 56.20 mg/100 g. Padre et al (2007) found a total cholesterol level of 43.22 mg/100 g in the Longissimus muscle. However, similar results to this experiment were obtained by Padre et al (2006), who analysed a sample of striploin and found a value of 52.00 mg/100 g of muscle.…”

Section: Discussionmentioning

confidence: 96%

The influence of dietary soyabean and linseed on the chemical composition and fatty acid profile of the <i>Longissimus</i> muscle of feedlot-finished bulls

Ito¹,

Prado²,

Prado³

et al. 2008

J. Anim. Feed Sci.

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This work was carried out to evaluate the effect of soya and linseed on the chemical composition and fatty acid profi le of the Longissimus muscle of crossbred bulls fi nished in feedlot. Twenty-one crossbred bulls (1/2 Nelore vs 1/2 Simmenthal), at an average age of 18 months were used in a completely randomized design, with three treatments and seven repetitions. The dietary treatments were: control (CON), linseed and soyabean (SOYA), and soyabean and linseed added after the 60 th day of the experiment (LIN). No difference (P>0.05) was observed among the treatments on the chemical composition of the Longissimus muscle. The values of conjugated linoleic acid (18:2-c-9, t-11) were higher (P<0.05) in the LIN (0.39%) and SOYA (0.46%) treatment, as compared with the CON treatment (0.26%). n-3 PUFA values were higher (P<0.05) in the LIN treatment (1.58%) as compared with the CON treatment (0.83%).

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Section: Discussionmentioning

confidence: 96%

The influence of dietary soyabean and linseed on the chemical composition and fatty acid profile of the <i>Longissimus</i> muscle of feedlot-finished bulls

Ito¹,

Prado²,

Prado³

et al. 2008

J. Anim. Feed Sci.

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“…Earlier work with beef cattle has found that feeding diets containing whole oilseeds increased back fat (Felton and Kerley, 2004), though others found that diets high in oil did not affect fat thickness (Andrae et al, 2001). …”

Section: Table 10mentioning

confidence: 99%

Effects of genotype and plane of nutrition on growth and carcass characteristics of lambs from hill sheep systems

Speijers

Carson

Dawson

et al. 2009

Animal

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The objective of this study was to determine the effect of lamb genotype and plane of nutrition on post-weaning lamb growth, and carcass characteristics in hill sheep systems. The lamb genotypes compared were as follows: purebred Scottish Blackface, Swaledale 3 Scottish Blackface, Cheviot 3 Scottish Blackface, Lleyn 3 Scottish Blackface and Texel 3 Scottish Blackface lambs. During the finishing period, lambs were allocated to a (i) low plane of nutrition (LP), based on a fixed allowance of dried grass pellets representing a grass-based system; (ii) high plane of nutrition (HP-cereal), with a diet consisting proportionately of 0.20 dried grass pellets : 0.80 cereal-based concentrate offered ad libitum; (iii) high plane of nutrition (HP-cereal/oil), with a diet consisting proportionately of 0.20 dried grass pellets : 0.80 cereal-based concentrate containing oilseed rape offered ad libitum. There were significant genotype 3 diet interactions for dry matter (DM) intake ( P , 0.001), live weight gain ( P , 0.05) and carcass gain ( P , 0.05). On the LP diet, carcass gains were higher for Texel cross compared to Blackface and Swaledale cross lambs ( P , 0.05). On both HP diets, carcass gains were lower in Blackface and Swaledale crosses compared with the Cheviot, Lleyn and Texel cross lambs ( P , 0.01). Feed conversion efficiency, expressed in terms of carcass gain per unit of DM, was highest for Texel cross and Cheviot cross, lowest in Swaledale cross and Blackface and intermediate for Lleyn cross lambs ( P , 0.001). Conformation classification was lowest for Swaledale cross ( P , 0.05) and highest for Texel cross lambs ( P , 0.001), whilst those of Blackface, Cheviot and Lleyn cross lambs were similar. Carcasses from Blackface and Lleyn cross lambs had higher fat classifications than Texel and Cheviot cross lambs ( P , 0.01). Feed conversion efficiency was lowest with the LP diet compared with the HP diets, resulting in a 5-week longer finishing period and lower carcass weights, fat scores, dressing proportions and subcutaneous fat depth measurements. These results indicate that crossbreeding can have a major effect on lamb performance in the hill sheep sector. Feeding a HP increased lamb growth rates, particularly for high growthpotential genotypes, improved feed efficiency, shortened the finishing period but increased carcass fatness. Including oilseed rape in concentrate-based diets did not affect performance.

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“…Sólo el glicerol puede ser utilizado en la gluconeogénesis (Gurr et al, 2002;Pethick et al, 2004;Hess et al, 2008). Cuando las dietas incluyen fuentes lipídicas como suTabla I. Efecto de la dietas sobre la concentración del glucógeno muscular (Diet effect on muscle glycogen concentration plemento concentrado en energía, se ha observado que los animales en crecimiento tienden a incrementar los depósitos de grasa corporal a partir de los ácidos grasos provenientes directamente de la dieta (Andrae et al, 2001). Asimismo, un incremento de ácidos grasos en plasma podría disminuir el catabolismo de la glucosa a través de la secreción de insulina, generando una mayor capacidad de almacenamiento de glucosa en el tejido muscular y hepático (Chilliard, 1993).…”

Section: Generalidadesunclassified

Relación de la dieta con el color y la terneza de la carne vacuna

2017

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Palabras clave adicionalesCalidad sensorial. Concentrados energéticos. Forrajes. Glucógeno.resUMen Para el consumidor de carne vacuna la calidad sensorial es importante al momento de la compra y el consumo. El color depende mayormente de la concentración de mioglobina y el pH, en tanto que la terneza está relacionada con el pH, la composición del colágeno y la degradación miofibrilar. Todos ellos pueden influenciarse por la dieta. La concentración de mioglobina depende del tipo de fibra muscular, cuyo metabolismo está influenciado por la dieta que reciban los animales. Las dietas de baja energía se asocian a fibras rojas, con metabolismo oxidativo y mayor concentración de mioglobina, mientras que las dietas ricas en energía estimulan el desarrollo de fibras glucolíticas. Estas últimas, tienen la capacidad de acumular más glucógeno. El metabolismo de las miofibras también afecta al contenido de enzimas proteolíticas, las fibras oxidativas presentan mayor concentración de calpaínas que las fibras glicolíticas. La estructura del colágeno es influenciada por la dieta de forma indirecta, ya que su efecto está mediado por la tasa de ganancia de peso. Al consumir dietas energéticas los animales incrementan la velocidad de ganancia de peso, lo que disminuye el colágeno total por un efecto de dilución debido al aumento de miofibrillas. Por otro lado, la energía puede retrasar la formación y estabilización de las estructuras del colágeno, con aumento de la fracción soluble. La dieta cumple un rol importante sobre la calidad de la carne, por lo tanto mantener un buen nivel de alimentación permite maximizar la calidad y lograr un producto con atributos sensoriales coincidentes con los requeridos por un gran número de consumidores. The sensorial quality of meat is important when consumers both purchase and eat it. When buying, color is most important, whereas tenderness is significant when eating. The color of the meat mostly depends on the concentration of myoglobin and pH, while tenderness is related to pH, collagen composition and myofibrillar degradation. Muscle fiber metabolism depends on the diet that the animals receive. Low-energy diets are associated with red fibers, oxidative metabolism, and increased myoglobin concentration. High-energy diets stimulate the development of glycolytic fibers, which have the ability to accumulate more glycogen. Myofiber metabolism also affects the content of proteolytic enzymes; oxidative fibers present a higher calpain concentration than glycolytic fibers. Collagen structure is affected by diet indirectly; its effect is mediated by daily weight gain. When consuming energetic diets, animals rapidly increase their weight, which will reduce total collagen by a dilution established by myofibrils increase. Additionally, an energetic diet can delay formation and stabilization of collagen structures, with an increasing soluble proportion. As diet plays an important role in the quality of meat, a good nutritional level allows maximizing quality; as a result, a large number of consumers will ...

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Effects of feeding high-oil corn to beef steers on carcass characteristics and meat quality.

Cited by 88 publications

References 29 publications

The influence of dietary soyabean and linseed on the chemical composition and fatty acid profile of the <i>Longissimus</i> muscle of feedlot-finished bulls

The influence of dietary soyabean and linseed on the chemical composition and fatty acid profile of the <i>Longissimus</i> muscle of feedlot-finished bulls

Effects of genotype and plane of nutrition on growth and carcass characteristics of lambs from hill sheep systems

Relación de la dieta con el color y la terneza de la carne vacuna

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