Lucerne grazing compared with concentrate-feeding slightly modifies carcase and meat quality of young bulls

Alibés, Mireia Blanco; Casasús, I.; Ripoll, G.; Doblado, Begoña Panea; Albertı́, P.; Joy, M.

doi:10.1016/j.meatsci.2009.10.010

Cited by 43 publications

(62 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Similar results were observed by Blanco et al (2010) who found a greater subcutaneous fat and IMF in young bulls fed in confinement (27 mm; 12.8 mm) compared with those fed in confinement + grazing alfalfa (3.3 mm; 11.7 mm), or alfalfa pasture (1.4 mm; 8.5 mm). When evaluating just the pasture animals, dressing percentage tended to increased linearly (Y = 50.97 + 1.83x; P = 0.06; standard error (s.e.)…”

supporting

confidence: 87%

“…This is probably due to a decrease in biohydrogenation by rumen bacteria. Blanco et al (2010) working with young bulls (confinement v. Lucerne grazed) and Duckett et al (2013) working with Angus steers (confinement v. forage species grazed) found no differences in SFA between confined or grazing animals, but the animals fed in confinement had higher concentrations of MUFA than was found in the current experiment.…”

contrasting

confidence: 67%

See 1 more Smart Citation

Productive performance, meat quality and fatty acid profile of steers finished in confinement or supplemented at pasture

Patiño

Medeiros²,

Pereira

et al. 2015

Animal

View full text Add to dashboard Cite

Thirty Aberdeen Angus crossbred steers (281 ± 16 kg) were used to test the effect of finishing feeding system on growth performance, meat quality and fatty acid (FA) profile in intramuscular fat. Steers were fed in confinement (forage:concentrate ratio of 50 : 50; DM basis) or with different levels of energy supplementation (0, 0.4, 0.8 and 1.2% BW) at pasture (Avena strigosa Schreb and Lolium multiflorum L.). There were no differences between treatments for ADG (average = 1.60 kg/day), hot carcass weight (HCW) (average = 229 kg) and subcutaneous fat depth (average = 3 mm). Dressing % (P = 0.06; tendency) and carcass ADG (P = 0.02) linearly increased with level of supplementation for pasture steers. No differences were observed between treatments for tenderness, marbling, pH, color b*, or cooking loss and drip loss in samples of Longissimus dorsi. However L* increased linearly (P = 0.05) with level of supplementation. The concentrations of myristic, palmitic, estearic and linoleic FA did not differ among treatments. The concentration of n-3 FA increased (P < 0.001) in steers at pasture compared with confinement, but n-6 FA concentrations did not differ between feeding system. Supplementation up to 0.4% BW increase (P < 0.001) conjugated linoleic acid (CLA) and linolenic FA concentrations in intramuscular fat when compared with confinement. The level of supplementation on pasture linearly decreased (P < 0.001) n-3 and CLA and linearly increased (P = 0.001) the n-6 : n-3 ratio. Finishing of steers grazing winter pasture with energy supplementation or in confinement fed a medium-concentrate diet did not affect meat quality (tenderness, marbling, parameter b* on the CIE L*a*b* scale, cooking and drip losses) except for a* and L*. However, intramuscular fat of animals finished at pasture with moderate level of supplementation compared to animals fed in confinement had greater concentration of CLA, linolenic, and n-3, and lower n-6 : n-3 in intramuscular fat.

show abstract

supporting

confidence: 87%

contrasting

confidence: 67%

Productive performance, meat quality and fatty acid profile of steers finished in confinement or supplemented at pasture

Patiño

Medeiros²,

Pereira

et al. 2015

Animal

View full text Add to dashboard Cite

show abstract

“…In this study, no differences were observed when carcass fat was visually assessed, although differences appeared when it was estimated by dissection of the 10th rib (Blanco et al, 2010a). However, to check if the fat content had actually affected carotenoid content estimation, SUM was analysed using subcutaneous fat thickness estimated by dissection as a covariate and this effect was not significant.…”

Section: Discussionmentioning

confidence: 79%

“…They were slaughtered immediately on arrival to minimize pre-slaughter stress, stunned by a captive bolt pistol and dressed according to standard commercial practices. Hot carcass weight, conformation and degree of fat cover have been reported in Blanco et al (2010a).…”

Section: Allmentioning

confidence: 99%

“…In addition, the lucerne produced during period 2 in the plot where LUC 1 Feedlot animals had been grazing in period 1 was destined for hay production, which produced extra costs associated with the harvesting and transport of lucerne. On the other hand, income achieved per animal at slaughter was calculated according to carcass weight and conformation, and was not different among management strategies (Blanco et al, 2010a). Furthermore, LUC 1 Feedlot treatment generated an economic return from hay production.…”

Section: Measurementsmentioning

confidence: 99%

See 1 more Smart Citation

Grazing lucerne as fattening management for young bulls: technical and economic performance and diet authentication

Alibés

Joy

Ripoll

et al. 2011

Animal

Self Cite

View full text Add to dashboard Cite

Three fattening systems were evaluated from weaning to slaughter in order to find alternatives to grain feeding in young bulls, and to test the reliability of carcass subcutaneous fat colour to discriminate among them. After weaning (224 kg), one group of animals was fed concentrates and straw until they reached the target slaughter weight (450 kg; Feedlot), another group grazed rotationally on lucerne supplemented with 1.8 kg DM/day barley until slaughter (LUC), and the third group had the same management as LUC animals for 3 months (period 1) and thereafter was finished on concentrates and straw until slaughter (period 2; LUC + Feedlot). Animals were weighed weekly and sampled monthly for serum IGF-I and leptin, and plasma non-esterified fatty acids and carotenoid pigment concentration analyses. Carcass characteristics and subcutaneous fat colour were recorded after slaughter. In period 1, Feedlot animals had slightly greater weight gains than their grazing counterparts (P< 0.10), and at the end of period 1 they had 66% greater IGF-I and 35% greater leptin concentration (P< 0.01). Plasma carotenoid pigments were undetectable in Feedlot animals, but increased during grazing in LUC and LUC + Feedlot treatments. In period 2, weight gains were lowest for LUC, intermediate for Feedlot and greatest for LUC + Feedlot animals (P< 0.001), conditioning the time taken to reach slaughter weight (73, 58 and 47 days, respectively;P< 0.05). Leptin and IGF-I concentrations increased in all management systems during period 2. Plasma carotenoid pigment concentration reached its maximum at the end of period 2 in LUC animals, but it decreased sharply in LUC + Feedlot animals in this period. Management did not affect carcass traits except for subcutaneous fat colour. Yellowness, Chroma (C*) and the value of the integral of the translated reflectance spectrum (SUM), estimator of carotenoid pigment content in fat, were higher in LUC than in LUC + Feedlot and Feedlot animals (P< 0.001). Two logistic regressions were obtained to discriminate carcasses from LUC treatment: P (LUC) = (1 + e18.8–5.6 × lightness–36.9 × redness + 0.3 × SUM + 29.8 × C*)−1and LUC + Feedlot treatment: P (LUC + Feedlot)=(1 + e833.7–11.8 × lightness + 4.7 × redness + 0.2 × SUM−2.5 × C*)−1. The economic margin, calculated as income achieved minus costs, was greatest for LUC, intermediate for LUC + Feedlot and lowest for Feedlot treatment. Therefore, grazing lucerne supplemented with barley was an interesting alternative for fattening young bulls in these conditions, producing carcasses of similar quality, which could be accurately traced by measuring subcutaneous fat colour.

show abstract

Effect of two Spanish breeds and diet on beef quality including consumer preferences

et al. 2013

View full text Add to dashboard Cite

show abstract

Lucerne grazing compared with concentrate-feeding slightly modifies carcase and meat quality of young bulls

Cited by 43 publications

References 49 publications

Productive performance, meat quality and fatty acid profile of steers finished in confinement or supplemented at pasture

Productive performance, meat quality and fatty acid profile of steers finished in confinement or supplemented at pasture

Grazing lucerne as fattening management for young bulls: technical and economic performance and diet authentication

Effect of two Spanish breeds and diet on beef quality including consumer preferences

Contact Info

Product

Resources

About