The eating quality of meat of steers fed grass and/or concentrates

French, P.; O’Riordan, Edward G.; Monahan, Frank J.; Caffrey, Patrick; Mooney, M.T.; Troy, Declan J.; Moloney, A.P.

doi:10.1016/s0309-1740(00)00115-7

Cited by 181 publications

(139 citation statements)

References 34 publications

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“…Higher growth rates have been associated with the production of more tender meat (French et al, 2001;Nuernberg et al, 2005). In the present work, pasturefed animals obtained significantly lower tenderness and Young Salers suckled bull production juiciness scores than other groups, although they presented higher growth rates.…”

Section: Discussionsupporting

confidence: 46%

“…Carcass fatness is affected by several factors like sex, age, genotype and growth rate (Micol et al, 1993). Usually, higher growth rates are associated with higher carcass fatness, but many experiments that found this effect were performed with bulls slaughtered at higher ages than in the present work (Steen and Kilpatrick, 1995;Listrat et al, 1999;Sami et al, 2004) or with animals differing in sex (heifers or steers) and age (French et al, 2001). Sinclair et al (1998) indeed observed significant differences in carcass weight but not in carcass fatness in young Charolais bulls slaughtered between 10 and 19 months, with daily gains differing on average by 600 g/day (1.41 v. 1.98 kg/day).…”

Section: Discussionmentioning

confidence: 65%

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Young Salers suckled bull production: effect of diet on performance, carcass and muscle characteristics and meat quality

Serrano¹,

Pradel²,

Jailler³

et al. 2007

Animal

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The aim of this work was to improve the knowledge on young suckled Salers bull production and to study the effect of forage type and concentrate level on performance, carcass and muscle characteristics as well as on meat quality. Twenty-four Salers male calves of 150 days of age were assigned to six groups: C0 (fed exclusively with hay and dam's milk and slaughtered at approximately 6 months of age), and HH (hay -high concentrate), HL (hay -low concentrate), GH (cut grass -high concentrate), GL (cut grass -low concentrate) and CP (control pasture: pasture -high concentrate) groups differing in feeds received until slaughter and slaughtered unweaned at approximately 10 months of age. Carcass weights averaged 210 kg at 10 months of age at slaughter. Average daily weight gain (ADWG) in HH and GH groups tended to be higher (P 5 0.09) than in HL and GL groups (1354 v. 1248 g/day). ADWG in CP group (1542 g/day) was higher (P , 0.05) than in the other groups. Carcass weight in CP group (230 kg) tended to be higher (P , 0.1) than in HL (198 kg) and GL (200 kg) groups. Carcass muscle weight was higher (P , 0.05) in GH (155 kg) and CP groups (165 kg) than in HL (141 kg) and GL (142 kg) groups. Carcass and offal fatty tissue weights and carcass fatness did not differ between groups. Neither forage type nor concentrate level had significant effect on the area of muscle fibres or on muscle metabolic enzyme activities (namely, lactate dehydrogenase -LDH, phosphofructokinase -PFK, isocitrate dehydrogenase -ICDH, citrate synthase -CS and cytochrome-c oxidase -COX). semitendinosus muscle of CP group presented higher CS enzyme activities (8.10 mmol/min per g) than HH (5.30 mmol/min per g) and GL (4.52 mmol/min per g) groups. Neither total nor insoluble collagen content significantly differed between groups. Lipid content in rectus abdominis muscle was relatively low (average 67.5 mg/g dry matter) and was not affected by diet (P . 0.05). The ratio between n-6 and n-3 polyunsaturated fatty acid content was lower (P 5 0.01) in the low-concentrate-fed than in the high-concentrate-fed group (3.95 v. 5.37, respectively). Sensory analysis noted that longissimus thoracis muscle from CP animals was more tender and juicy than that from HH and GH animals (P , 0.05).

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Section: Discussionsupporting

confidence: 46%

Section: Discussionmentioning

confidence: 65%

Young Salers suckled bull production: effect of diet on performance, carcass and muscle characteristics and meat quality

Serrano¹,

Pradel²,

Jailler³

et al. 2007

Animal

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“…Increased growth rate prior to slaughter increases the rate of protein turn over, resulting in higher concentrations of proteolytic enzymes in the carcass tissues at slaughter, which in turn may effect collagen solubility and/or myofibril fragmentation (Aberle et al, 1981). More recently, French et al (2001) concluded that carcass growth rate accounted for 0.10 of the variation in Warner Bratzler shear force and 0.03 of the variation in sensory tenderness in 14 day-aged steaks. Recent studies have reported no effect of forage feed value Keady et al, 2007) or concentrate feed level Keady and Kilpatrick, 2006) on tenderness of beef cattle.…”

Section: Discussionmentioning

confidence: 99%

The effects of grain treatment, grain feed level and grass silage feed value on the performance of and meat quality from, finishing beef cattle

Keady¹,

Lively²,

Kilpatrick³

et al. 2008

Animal

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A completely randomised design study involving 132 continental crossbred beef steers was undertaken to evaluate the effects of method of grain treatment and feed level, and grass silage feed value on animal performance, carcass characteristics and meat quality of beef cattle. Winter wheat was harvested and the grain was stored either ensiled crimped and treated with 4.5 l/t of a proprietary acid-based additive (crimped), ensiled whole and treated with 20 kg feed-grade urea per t (urea) or stored conventionally in an open bin treated with 3 l propionic acid per t. Two grass silages, of contrasting feed value (L and H) were ensiled. For the conventional, crimped and urea treatments, grain dry matter (DM) concentrations were 802, 658 and 640 g/kg, respectively. For the L-and H-feed value silages, DM concentrations were 192 and 240 g/kg and D values were 671 and 730 g/kg DM, respectively. The silages were offered as the sole forage supplemented with either conventional, crimped or urea-treated grain-based concentrate at either 3.5 or 6.0 kg DM per steer per day. The grain supplement consisted of 850 and 150 g/kg DM of grain and citrus pulp, respectively. For the conventional, urea and crimped treatments, DM intakes were 8.85, 9.43 and 9.04 kg/day (standard error (s.e.) 5 0.129); estimated carcass gains were 0.60, 0.55 and 0.61 kg/day (s.e. 5 0.020), respectively. For the low-and high-feed value grass silages, estimated carcass gains were 0.56 and 0.61 kg/day (s.e. 5 0.014), respectively. For the low and high grain feed levels, estimated carcass gains were 0.56 and 0.61 kg/day, respectively. Grain treatment, grain feed level or silage feed value did not alter (P . 0.05) meat quality, lean colour or fat colour. There were significant silage feed value 3 grain feed level interactions (P , 0.05) for final live weight (LW) and daily live-weight gain (DLWG). Increasing grain feed level increased final LW and DLWG when offered with the low-feed value silage, however, grain feed level had no effect on final LW or DLWG when offered with the high-feed value silage. It is concluded that urea treatment of grain increased silage intake and feed conversion ratio (kg DM intake per kg carcass) and tended to decrease carcass gain. Crimping provides a biologically equally effective method to store grain as conventional methods. Improving grass silage feed value had a greater impact on animal performance than increasing grain feed level by 2.4 kg DM per day.

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“…Many studies have compared the meat tenderness and color of animals from extensive systems to those fed concentrated diet (FRENCH et al, 2000;REALINI et al, 2004). Many other studies reported no differences in quality and acceptability in meat from animals finished on pastures and concentrates (FRENCH et al, 2001;. This variability in results indicates that further research is necessary to establish the reasons for these differences.…”

Section: Introductionmentioning

confidence: 99%

Effect of genotype, finishing system, and sex on physiochemical characteristics of goat meat

Rodrigues¹,

Gonçalves²,

Medeiros³

et al. 2011

Ciênc. Tecnol. Aliment.

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The eating quality of meat of steers fed grass and/or concentrates

Cited by 181 publications

References 34 publications

Young Salers suckled bull production: effect of diet on performance, carcass and muscle characteristics and meat quality

Young Salers suckled bull production: effect of diet on performance, carcass and muscle characteristics and meat quality

The effects of grain treatment, grain feed level and grass silage feed value on the performance of and meat quality from, finishing beef cattle

Effect of genotype, finishing system, and sex on physiochemical characteristics of goat meat

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