Influence of selection for muscle growth capacity on meat quality traits and properties of the rectus abdominis muscle of Charolais steers

Ellies-Oury, M.-P.; Renand, Gilles; Perrier, Guy; Krauss, Daniel; Dozias, Dominique; Jailler, Roland; Dumont, R

doi:10.1016/j.livsci.2012.09.003

Cited by 8 publications

(7 citation statements)

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“…Indeed, weight was found to have no significant effect on m. rectus abdominis lipid content, as previously noted in the case of 31-month-old steers age selected by growth rate, with slaughter weight having no impact either on fatness score or on fat content (Ellies- Oury et al, 2012). Tenderness has been identified as a characteristic closely related to overall acceptability, the lack of tenderness being often the cause of consumer disaffection with beef.…”

Section: Discussionmentioning

confidence: 63%

“…The high variability in lipid content, already indicated for the m. rectus abdominis of various Charolais animals (Micol et al, 2008;Oury et al, 2009;Ellies-Oury et al, 2012), led to a lack of positive connection between weight and m. rectus abdominis lipid content.…”

Section: Discussionmentioning

confidence: 94%

“…In the same study, Sanudo et al (2004) indicated that weight effect is not significant for total and insoluble collagen. Other authors have indicated that when slaughter weight differences are linked to genetics, the amount and the solubility of collagen are equivalently distributed among lighter and heavier animals, whatever the muscle (m. rectus abdominis or m. semitendinosus) and the animal type (bulls or steers) (Sudre et al, 2005;Bernard et al, 2009;Ellies-Oury et al, 2012). Thus, collagen solubility appears to be determined mainly by slaughter age and relatively little by slaughter weight.…”

Section: Discussionmentioning

confidence: 99%

“…Indeed, if high muscle growth potential might associated with a less oxidative metabolism (Arthur, 1995;Hocquette et al, 1998;Sudre et al, 2005), no significant impact of increasing slaughter weight appeared on oxidative metabolism (ICDH and COX) (Renand et al, 2001;Bernard et al, 2009;Ellies-Oury et al, 2012). Thus, it could be hypothesized that slaughter weight impact on muscle metabolism is dependent on both animal age and sex.…”

Section: Discussionmentioning

confidence: 99%

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Effect of age and carcass weight on quality traits of m. rectus abdominis from Charolais heifers

Ellies-Oury

Dumont

Perrier

et al. 2017

Animal

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In practice cattle may be slaughtered at different combinations of age and weight. As each of these factors could affect meat quality traits, the present work aimed to identify which combination can be expected to increase overall meat quality of m. rectus abdominis of Charolais heifers. Totally, 40 heifers were slaughtered either at 26 ± 1 or at 36 ± 1 months of age. Young heifers were sampled at two different carcass weights (349 ± 12 and 394 ± 8 kg). Old heifers were also sampled at two different carcass weights (397 ± 6 and 451 ± 9 kg). The m. rectus abdominis was excised 24 h postmortem to determine metabolic enzyme activities, myosin heavy-chain isoform proportions, lipid contents, collagen content and collagen solubility. Shear force measurements were evaluated on raw and broiled meat after 14 days of ageing. Meat quality traits scored between 0 and 10 by sensory analysis. Increasing slaughter age from 26 to 36 months had no impact on either raw/broiled shear force (0.31 ⩽ P ⩽ 0.47) and/or meat quality traits (0.62 ⩽ P ⩽ 0.91) or on physicochemical properties of heifer's meat samples. Increasing carcass weight for a similar slaughter age of 26 months had also impact neither on meat quality traits (0.52 ⩽ P ⩽ 0.91) nor on muscular properties. On the contrary, increasing carcass weight for a similar slaughter age of 36 months had induced a decrease of muscular shear force (raw muscle; P = 0.009) and a concomitant decrease of total collagen content ( P = 0.03). Nevertheless, no significant impact on meat quality traits was revealed by the sensorial panel (0.13 ⩽ P ⩽ 0.49). Metabolic enzyme activities (0.13 ⩽ P ⩽ 0.86) and myosin heavy-chain proportions (0.13 ⩽ P ⩽ 0.96) were not significantly impacted by slaughter age and carcass weight. Thus, the impact of increasing carcass weight and/or slaughter age in young Charolais heifers has a limited impact on meat quality traits and associated muscular characteristics. Modulating heifer's cycles (age and/or carcass weight in the studied range) appears to be a way to answer to the numerous marketing chains, without penalising meat quality traits.Keywords: heifer's cycle, lipid content, metabolism, shear force, tenderness ImplicationsAffiliated for a long time to high-quality meat, Charolais heifers meat tends to become commonplace and to spread both in traditional butchers' shops and in supermarkets. This phenomenon could be linked both to the female rarefaction (because of the reduction of the suckling herd) and to the search for lighter carcasses. In this context, suckling heifers offer a large panel of slaughter age and carcass weight, which allow an adaptation to numerous marketing circuits. Results indicate that within the range of weight and age under study, these factors have no negative consequences on heifer's meat quality. Thus, even if heifer's performances at slaughter are various, the supply chain operators can insure the consumer a constant quality of meat samples. IntroductionSince 2002, French labelling has provided consumers with information about ...

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Section: Discussionmentioning

confidence: 63%

Section: Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Effect of age and carcass weight on quality traits of m. rectus abdominis from Charolais heifers

Ellies-Oury

Dumont

Perrier

et al. 2017

Animal

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“…In accordance with the weak impact of the final weight observed in our FAT-YB model, Steen and Kilpatrick (1995) showed also a weak increase of the carcass fatness score when the slaughter weight increased by 100 kg, in young bulls. Moreover, Ellies-Oury et al (2012) in steers did not observed a significant increase of the fatness score when the steers were slaughtered heavier (increasing of average 80 kg).…”

Section: Discussionmentioning

confidence: 78%

Identification of key rearing factors to manage cattle carcass fatness and conformation scores during the fattening period

Soulat

Monteils

Léger

2019

Italian Journal of Animal Science

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The fatness and conformation scores characterise the payment of cattle carcasses in the EUROP system. The management of these carcass traits is important for stakeholders of the meat chain. The aim of this study was to identify rearing factors, applied during the fattening period, influencing the fatness and conformation scores of the carcasses, in two categories of animals (cull cows and young bulls). A data set of individual cattle data (233 cull cows and 565 young bulls) from different experiments was used. It included eleven rearing factors characterising the fattening period. From carcass data, clusters of fatness and conformation scores were defined. To identify the rearing factors with a leverage on carcass traits according to the category of animal, four robust prediction models were developed using logistic regression to predict these clusters. According to the results of the models established, to achieve the fatness score rehearsed by stakeholders, cull cows should ingest less dry matter (DM) and have a shorter fattening period, whereas young bulls should be more efficient, ingest more DM and be slaughtered heavier. To improve the carcass conformation score, the cull cows should ingest more net energy and begin their fattening heavier. For the young bulls, the three rearing factors identified for the fatness score allowed to improve the conformation score. This study showed also that the jointly management of these both carcass traits is possible, nevertheless it is necessary to adapt the applied fattening practices according to the category of animal. HIGHLIGHTSUsed rearing factors to predict the fat score and conformation of bovine carcasses. Logistic regression is well adapted to predict fat score and conformation of bovine carcasses. The prediction models of the fat score and conformation are robust. ARTICLE HISTORY

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Muscle fiber type, postmortem metabolism, and meat quality of Nellore cattle with different post-weaning growth potential

et al. 2021

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Influence of selection for muscle growth capacity on meat quality traits and properties of the rectus abdominis muscle of Charolais steers

Cited by 8 publications

References 45 publications

Effect of age and carcass weight on quality traits of m. rectus abdominis from Charolais heifers

Effect of age and carcass weight on quality traits of m. rectus abdominis from Charolais heifers

Identification of key rearing factors to manage cattle carcass fatness and conformation scores during the fattening period

Muscle fiber type, postmortem metabolism, and meat quality of Nellore cattle with different post-weaning growth potential

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