Carcass merit between and among family groups of Bos indicus crossbred steers and heifers

King, D. A.; Morgan, W. W.; Miller, R. K.; Lunt, D. K.; Taylor, Jeremy F.; Gill, C. A.; Savell, J. W.

doi:10.1016/j.meatsci.2005.08.015

Cited by 24 publications

(18 citation statements)

References 12 publications

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“…Rib eye fat thickness was greater in heifers compared to other treatments ( p = 0.0001). Similarly, some authors (Choat et al, ; King et al, ) reported greater subcutaneous fat thickness in heifers compared to steers. Owens, Dubeski, and Hanson () reported that heifers had greater potential for fat deposition, caused by differences in the growth curve between the animal categories.…”

Section: Resultsmentioning

confidence: 82%

Gender status effect on carcass and meat quality traits of feedlot Angus × Nellore cattle

Mueller

Balieiro

Ferrinho

et al. 2019

Animal Science Journal

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| INTRODUC TI ONThe demand for animal products is increasing as the world population grows. Brazil is an important beef producer and global exporter so it is important to invest in breeding programs aiming at traits that can meet the increasing demand for beef and the requirements of a demanding consumer (Carvalho et al., 2016). Also, beef cattle producers need to invest in technologies to increase profitability and improve the quality of the production. Therefore, the beef industry needs to reward the producer by implementing certification programs to stimulate the producers to adopt practices that improve meat quality, such as castrating males, crossbreeding, feedlot finishing, and slaughtering of heifers with adequate subcutaneous and intramuscular fat deposition. In the last decades, Brazilian beef producers have been using increasingly precocious cattle, with greater carcass development to produce beef with desirable traits. In short, Brazilian producers utilize crossbreeding between B. indicus and Taurus breeds to improve lean yield and beef quality (Carvalho et al., 2016;Gama et al., 2013;Pereira et al., 2015).Carcass and beef quality are significantly affected by gender (Gagaoua et al., 2015;Weglarz, 2010). Steer and heifer have lower performance, higher subcutaneous and intramuscular fat content, and better quality beef compared to bull carcasses (Seideman, AbstractThe study evaluated the effect of gender status on carcass and meat quality of feedlot Angus × Nellore cattle. A total of 176 cattle, 20 months old, were confined for 190-days and assigned to four treatments: bulls, immunocastrated, steers, and heifers. Bulls had greater rib eye area and HCW (p = 0.0001). Heifers had increased fat thickness (p = 0.0001). Steers and heifers had higher marbling scores (p = 0.0001).There was interaction between gender and aging time for Warner-Bratzler Shear Force (p = 0.0002), L* (p = 0.0118), and b* (p = 0.0113) values of beef. The sensory panel results showed that beef from bulls had the lowest consumer overall acceptance (p = 0.0278). Especially, regardless tenderness, steers and immunocastrated beef were considered tender, independent of aging time. Beef produced by heifers, steers, and immunocastrated is considered to be of higher quality than bulls. Thus, it is may be an interesting alternative to produce high-quality beef than bulls, to attend the consumer demand for high-quality products. Additionally, the low fatty acids n6 levels and low n6:n3 ratio, high levels of CLA, MUFAs, and oleic acid suggests that the heifer meat is favorable for human health.

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Section: Resultsmentioning

confidence: 82%

Gender status effect on carcass and meat quality traits of feedlot Angus × Nellore cattle

Mueller

Balieiro

Ferrinho

et al. 2019

Animal Science Journal

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“…This may be ascribed to the fact that the Nguni is a multi-purpose breed, which has not been solely developed for beef production. Dualpurpose breeds have been reported to have lower dressing percentage than pure beef breeds because coefficients of growth for non-carcass fat are higher than those for carcass fat (Kempster et al, 1982;Keane et al, 1990;King et al, 2006). Purchas et al (1992) found that carcasses from large-framed and late-maturing breeds have less fat, higher conformation scores, dressing percentage and proportion of first category cuts.…”

Section: Discussionmentioning

confidence: 99%

Tick susceptibility and its effects on growth performance and carcass characteristics of Nguni, Bonsmara and Angus steers raised on natural pasture

Muchenje

Dzama

Chimonyo

et al. 2008

Animal

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The objective of the current study was to compare tick loads, growth and carcass characteristics of dipped and non-dipped Nguni, Bonsmara and Angus steers raised on natural pasture. One hundred 7-month-old castrated weaners were kept at the University of Fort Hare Farm for 12 months. There were 30 weaners each of Angus and Bonsmara, and 40 weaners of the Nguni breed. Half the Bonsmara, Angus and 14 Nguni weaners were dipped every fortnight. The rest were not dipped. Monthly weights and tick counts under the tail, on scrotum, belly, sternum and ears of the steers were recorded. The dipped Nguni steers had lowest (P , 0.05) tick counts, and the non-dipped Angus steers had the highest (P , 0.05) tick counts. There were more ticks (P , 0.05) during the warm wet season than during the cool dry season. Ears had the highest (P , 0.05) tick infestation. Average daily gain (ADG) was similar (P . 0.05) among the three breeds. The non-dipped Bonsmara steers had the heaviest (P , 0.05) carcasses (142 6 5.4) while the non-dipped Nguni steers had the lightest (P , 0.05) carcasses (111 6 4.5 kg). The non-dipped Bonsmara had the highest (P , 0.05) eye muscle area (3996 6 120.8 mm 2 ) while the nondipped Angus had the smallest (P , 0.05) eye muscle area (3291 6 210.6 mm 2 ). The non-dipped Bonsmara also had the highest (P , 0.05) dressing percentage (53.8 6 1.01) while the non-dipped Nguni had the lowest (P , 0.05) dressing percentage (50.3 6 0.84). The current study has shown that while the non-dipped steers had higher (P , 0.05) tick loads than the dipped steers, their growth and carcass characteristics were similar (P . 0.05). The study has also shown that, despite being a smallframed breed, the Nguni steers had similar (P . 0.05) ADG to the large-framed Bonsmara and Angus steers. Therefore, the Nguni cattle have the potential to produce organic beef. However, a reasonable assessment of organic beef production potential of the Nguni requires an evaluation of its meat quality traits under natural pasture.

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“…Conversely, in Brazil, Zebu (Bos indicus) breeds are very important due to their heat and parasite tolerance (Machado, Schuster, Martinez, & Campos, 2003). Cattle with B. indicus influence are often discriminated against due to negative perceptions of their carcass merit and palatability compared to B. taurus cattle (King et al, 2005;Tipton, King, Paschal, Hale, & Savel, 2006). Many investigators have reported that B. indicus cattle typically produce carcasses that are lower quality and lower yielding than cattle with B. taurus genetics (Koch, Dikeman, & Crouse, 1982;Wheeler, Cundiff, Koch, & Crouse, 1996), and meat from Zebu animals is less tender (Norman, 1980;Pringle, Williams, Lamb, Johnson, & West, 1997).…”

Section: Discussionmentioning

confidence: 99%

Importance of the country of origin in food consumption in a developing country

Schnettler

Ruiz

Sepúlveda

et al. 2008

Food Quality and Preference

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Carcass merit between and among family groups of Bos indicus crossbred steers and heifers

Cited by 24 publications

References 12 publications

Gender status effect on carcass and meat quality traits of feedlot Angus × Nellore cattle

Gender status effect on carcass and meat quality traits of feedlot Angus × Nellore cattle

Tick susceptibility and its effects on growth performance and carcass characteristics of Nguni, Bonsmara and Angus steers raised on natural pasture

Importance of the country of origin in food consumption in a developing country

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