Carcass traits and meat quality of steers on pasture submitted to different dietary supplementation

Menezes, Bruna Biava de; Fernandes, Henrique Jorge; Morais, Maria da Graça; Rosa, Edneia Pereira; Souza, Aparecido Ribeiro de; Feijó, G. L. D.; Franco, Gumercindo Loriano

doi:10.5433/1679-0359.2019v40n6p2693

Cited by 2 publications

(1 citation statement)

References 10 publications

(13 reference statements)

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“…The improved performance of bulls receiving high levels of concentrate supplement was not enough to influence the final weight and carcass yield. Many studies (Pompei et al, 2018;Menezes et al, 2019) observed this same effect, and the main explanation involves the use of contemporary animals of the same breed and diets with similar energy content.…”

Section: Resultsmentioning

confidence: 79%

Are the effects of dietary lipid content in grazing beef cattle independent of the amount of concentrate supplement?

Damasceno¹,

Valente²,

Barbizan³

et al. 2021

Semina: Ciênc. Agrár.

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This study aimed to evaluate the effects of levels of concentrate supplement and dietary lipids on the nutritional characteristics, metabolic parameters, and performance of Nellore bulls grazing tropical pasture. Twenty-seven Nellore bulls were allotted to 2 × 2 completely randomized factorial design with two levels of supplementation and two levels of dietary lipids. The concentrate supplement was fed at 4 g kg-1 BW (low supplementation) and 8 g kg-1 BW (high supplementation), whereas the dietary lipid content was 28 g of ether extract (EE) g-1 on a dry matter basis (DM) (low-lipid diet) and 42 g EE kg-1 DM (high-lipid diet). There was no interaction between the level of concentrate supplement and dietary lipid content on all studied variables. High levels of supplementation led to shorter grazing time and reduced forage dry matter intake (DMF). On the other hand, the DM intake increased with increasing levels of concentrate supplement, with no significant effects on DM digestibility. The dietary lipid content did not affect forage and DM intakes. However, the digestibility of DM and neutral detergent fiber (NDF) were lowest in high-lipid diets. Bulls receiving high levels of supplementation had higher average daily gains than low-supplemented animals. Neither the amount of concentrate supplement nor the dietary lipid content affected the hot carcass yield and carcass weight. Carcass fat deposition was greater in bulls fed high-lipid diets than in animals receiving low-lipid diets. The effects of the level of concentrate supplement and dietary lipid content on the nutritional characteristics and performance of grazing beef cattle are independent. Concentrate supplementation at 8 g kg-1 BW increases cattle performance but decreases forage utilization. Diets containing 42 g EE kg-1 DM reduces the digestibility of dry matter and fiber fractions, but increases backfat thickness.

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Section: Resultsmentioning

confidence: 79%

Are the effects of dietary lipid content in grazing beef cattle independent of the amount of concentrate supplement?

Damasceno¹,

Valente²,

Barbizan³

et al. 2021

Semina: Ciênc. Agrár.

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Effects of grazing on grassland or wood-pasture, slaughtering age and ageing time on meat production and quality in Podolian young bulls

Giannico,

Karatosidi,

Carbonara

et al. 2024

Veterinary Quarterly

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Podolian cattle is an autochthonous breed well adapted to the harsh semi-arid environments of the Southern Italy regions; the extensive rearing system used for these indigenous animals is based on grazing on spontaneous pastures, such as grasslands or wood pastures These grazing systems respect animal welfare and enrich animal products with characteristics closely related to the feeding system and the farming environment. The aim of the present study was to characterize the nutritional value of a forage crop and a wood-pasture and to evaluate the effects of grazing by Podolian young bulls on the performances and meat quality in relation to the age at slaughter (14 or 18 months) and to the ageing time of meat (3, 9 or 14 days). The metabolizable energy and the gas production were greater in April and June for both pasture systems. Young bulls raised on the grassland showed greater slaughter weights ( p < 0.05) as compared to those fed on the woodland system, at both the slaughtering ages. The Warner Bratzler Shear (WBS) force values for raw and cooked meat were not influenced by the pasture system but they significantly ( p < 0.01) decreased in relation to the ageing time in all the groups. Ageing markedly ( p < 0.05) increased the malondialdehyde (MDA) concentration from 3 to 14 days of storage, regardless of the pasture system and the slaughtering age. The n-6/n-3 polyunsaturated fatty acid ratio of meat was markedly lower in grassland animals, regardless of the age of slaughter. In conclusion, 18 months old grassland beef showed better performances and yield of meat cuts. Ageing for 9 days positively affected meat WBS without increasing MDA concentration.

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Carcass traits and meat quality of steers on pasture submitted to different dietary supplementation

Cited by 2 publications

References 10 publications

Are the effects of dietary lipid content in grazing beef cattle independent of the amount of concentrate supplement?

Are the effects of dietary lipid content in grazing beef cattle independent of the amount of concentrate supplement?

Effects of grazing on grassland or wood-pasture, slaughtering age and ageing time on meat production and quality in Podolian young bulls

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