Production systems – An example from Brazil

Ferraz, José Bento Sterman; Felício, Pedro Eduardo de

doi:10.1016/j.meatsci.2009.06.006

Cited by 278 publications

(202 citation statements)

References 12 publications

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“…In many tropical regions, beef production is largely based on B. indicus cattle and their crosses, given their superior adaptation to tropical conditions (Hansen 2004). For example, in Brazil, which is among the leading beef producers and exporters in the world (Lobato et al 2014), B. indicus and their crosses represent nearly 80% of the cattle population (Ferraz & Fel ıcio 2010). However, given the less desirable FA profile of B. indicus and their lower meat tenderness (Wheller et al 2001), crossbreeding with B. taurus would be a possible way to improve meat quality, including FA profile, without losing the adaptation characteristics of B. indicus.…”

Section: Discussionmentioning

confidence: 99%

Differences in intramuscular fatty acid profiles amongBos indicusand crossbredBos taurus × Bos indicusbulls finished on pasture or with concentrate feed in Brazil

Bressan

Rodrigues

Paula

et al. 2016

Italian Journal of Animal Science

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Bos indicus (n ¼ 67) and crossbred Bos taurus Â Bos indicus (n ¼ 67) bulls were finished in extensive or intensive conditions to evaluate the effect of genetic differences and finishing system on the fatty acid (FA) composition of intramuscular fat. Finishing system had a more pronounced effect on FA profiles than the genetic group, but the two factors often interacted for both individual and groups of FA. When compared with animals finished intensively, those finished on pasture produced meat with higher concentration of CLA and polyunsaturated n-3 FA, in particular of 18:3, 20:5 and 22:5. Meat from animals finished intensively had higher amounts of 14:0, 16:0, 18:1 trans-10, 18:1 trans-11, monounsaturated trans FA and 18:2. When the two genetic groups were compared under intensive finishing, B. indicus animals showed lower amounts of 20:4 (synthesised from 18:2) and 20:5 (synthesised from 18:3), suggesting that they may have a lower ability in biochemical pathways involved in the metabolism of n-6 and n-3 long chain fatty acids. Overall, meat from animals finished on pasture had a higher amount of the FA considered desirable for human health. ARTICLE HISTORY

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Section: Discussionmentioning

confidence: 99%

Differences in intramuscular fatty acid profiles amongBos indicusand crossbredBos taurus × Bos indicusbulls finished on pasture or with concentrate feed in Brazil

Bressan

Rodrigues

Paula

et al. 2016

Italian Journal of Animal Science

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“…In Brazil, traditional cattle production is extensive and usually pasture-based (Ferraz & Felício, 2010). Zebu breeds (Bos taurus indicus), such as Nellore, are frequently used (Moreira et al, 2008;Rotta et al, 2009;Silva et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

<b>Carcass characteristics and sensorial evaluation of meat from Nellore steers and crossbred Angus vs. Nellore bulls

Barcellos

Mottin

Passetti

et al. 2017

Acta Sci. Anim. Sci.

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ABSTRACT. This study evaluated animal performance, carcass characteristics and meat quality of 36-month old Nellore steers finished in pastures (n = 10) and 20-month old Angus vs. Nellore bulls finished in feedlot (n = 10). Final body weight, carcass weight, characteristics, conformation and fat thickness, were higher (p < 0.001) for the Nellore steers than for Angus vs. Nellore bulls. Water losses during chilling (24 hours, 4 o C) were lower (p < 0.05) for Nellore steers than for the Angus vs. Nellore bulls. Muscle percentage on the 6 th rib was higher (p < 0.05) for the Nellore steers than for Angus vs. Nellore bulls; while bone percentage was lower (p < 0.05) for Nellore steers. After 7 and 14 days of ageing, the L* meat value was higher for the Nellore steers than for the Angus vs. Nellore bulls; the L* meat value was similar (p > 0.05) throughout the ageing period for the Angus vs. Nellore bulls, but higher in meat from the Nellore steers (p < 0.05). Genetic group had no effect (p > 0.05) on meat a* value (redness). Likewise, ageing time had no effect on a* in both genetic groups, and genetic group had no effect (p > 0.05) on meat b* value (yellowness). On the other hand, b* was increased after day 7 of ageing for the bulls from the two genetic groups. Thawing and cooking losses were lower for Nellore steers after day 7 of aging (p < 0.05). The meat of the Angus vs. Nellore bulls was more tender (p < 0.05) at all ageing times studied (1, 4, 7 and 14 days) than the meat of the Nellore steers. Genetic group had no effect (p > 0.05) on lipid oxidation; however, lipid oxidation increased after day7. Meat from Nellore steers contained a higher percentage of saturated fatty acids (SFA), a lower percentage of unsaturated (UFA) and monounsaturated fatty acids (MUFA) and a similar percentage of polyunsaturated fatty acids (PUFA) than the meat from Angus vs. Nellore bulls. Intramuscular fat from Nellore steers had a more favourable n-6:n-3 fatty acid ratio than that from Angus vs. Nellore bulls (4.37 vs. 11.45, respectively). Tenderness, flavour and overall acceptability were higher (p < 0.001) for meats of the Nellore steers, regardless of ageing time (1, 4, 7 and 14 days).Keywords: Brazil, consumer acceptability, fattening system, genetic groups, meat quality, sexual class.Características de carcaça e avaliação sensorial da carne de novilhos Nelore e touros cruzados Angus vs. Nelore RESUMO. Este estudo foi realizado para avaliar o desempenho animal, características de carcaça e qualidade da carne de novilhos Nelore terminados em pastagens e abatidos aos 36 meses de idade (n = 10) e machos não castrados Angus vs. Nelores abatidos aos 20 meses de idade (n = 10). O peso final, peso, características e conformação da carcaça e espessura de gordura de cobertura foram maiores (p < 0,001) para os novilhos Nelores do que para os mestiços Angus vs. Nelores. As perdas de água durante o resfriamento (24 horas, 4º C) foram menores (p < 0,05) para os novilhos Nelores do que para os mestiços Angus vs. Nelores. A percentagem de mú...

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“…Brazil currently accounts for one third of global beef exports (Ferraz and Felício, 2010). Production is based on livestock grazing, and 90% of the Brazilian livestock consists of Nellore cattle (ABIEC, 2012).…”

Section: Introductionmentioning

confidence: 99%

Sire effects on carcass and meat quality traits of young Nellore bulls

Bonin¹,

Ferraz²,

Eler³

et al. 2014

Genet. Mol. Res.

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ABSTRACT. Meat quality is being increasingly demanded by consumers in recent years. Several factors can affect meat quality, ranging from animal traits such as breed and genetic heritage to pre-and post-slaughter processes. This study investigated the influence of Nellore bulls on carcass and meat quality traits. We used 475 young uncastrated males, the progeny of 54 bulls, to evaluate characteristics of the following carcass traits: hot carcass weight, rib-eye area, and fat thickness. We also evaluated the following beef quality traits: marbling, color, drip loss, cooking loss, and shear force at 0, 7, and 14 days of aging. Bulls had a significant influence (P ≤ 0.05) on rib-eye area, fat thickness, marbling, drip loss at 14 days of aging and color at all aging periods. Based on these results, the use of bulls with high breeding values for these traits can Meat quality of Nellore bulls provide important advances in carcass traits and meat quality in breeding programs of Nellore cattle that are raised in tropical conditions.

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Production systems – An example from Brazil

Cited by 278 publications

References 12 publications

Differences in intramuscular fatty acid profiles amongBos indicusand crossbredBos taurus × Bos indicusbulls finished on pasture or with concentrate feed in Brazil

Differences in intramuscular fatty acid profiles amongBos indicusand crossbredBos taurus × Bos indicusbulls finished on pasture or with concentrate feed in Brazil

<b>Carcass characteristics and sensorial evaluation of meat from Nellore steers and crossbred Angus vs. Nellore bulls

Sire effects on carcass and meat quality traits of young Nellore bulls

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