Effect of the type of diet on muscle characteristics and meat palatability of growing Salers bulls

Listrat, Anne; Rakadjiyski, N.; Jurie, Catherine; Picard, Brigitte; Touraille, Christian; Geay, Y.

doi:10.1016/s0309-1740(99)00042-x

Cited by 52 publications

(33 citation statements)

References 26 publications

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“…Neither forage type nor concentrate level affected muscle fibre area. These results are in accordance with those of Listrat et al (1999) who did not find any difference in muscle fibre area between Salers bulls fed on isoenergetic and isoproteic diets based on grass silage or hay and concentrate. Cassar-Malek et al (2004a), Maltin et al (2001) and Sami et al (2004) also failed to find differences in muscle fibre surface between animals finished on highor low-energy diets and presenting moderate differences in growth rates (between 200 and 400 g/day).…”

Section: Discussionsupporting

confidence: 93%

“…The results obtained in several studies suggested an association between grass or grass silage Means within a row with different superscripts differ significantly (P , 0.05). feeding and an increase in oxidative activities of muscles Listrat et al, 1999). In the present work, diet did not affect enzyme activities.…”

Section: Discussionsupporting

confidence: 50%

“…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: 68%

“…Maltin et al (1998) observed higher collagen content in longissimus lumborum muscle of animals finished on grass-silage-based diet having low growth rate than in animals finished on barleybased diet having high growth rate (approximate weight gain differences of 400 g/day) and no effect on collagen solubility. Listrat et al (1999), comparing two groups of Salers bulls fed on diets based on grass silage or hay, did not observe differences in ST muscle collagen content. In this experiment, hay-fed animals presented lower growth rates and higher collagen solubility than grass-silage-fed animals (2122 g/day).…”

Section: Discussionmentioning

confidence: 75%

“…Total hydroxyproline (OH-Prol) content and collagen in the insoluble part were measured as described by Listrat et al (1999 and. Data are presented as means of triplicate measurements and are expressed, for total and insoluble collagen, in mg OH-Prol per mg of dry matter (DM) and also as percentage of OH-Prol in the soluble part per total amount of OH-Prol.…”

Section: Collagenmentioning

confidence: 99%

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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: 93%

Section: Discussionsupporting

confidence: 50%