Effects of combining immunocastration and β-adrenergic agonists on the meat quality of Nellore cattle

Mazon, Madeline Rezende; Antonelo, Daniel Silva; Gómez, Juan Fernando Morales; Nubiato, Keni Eduardo Zanoni; Balage, Juliana Monteiro; Silva, Henrique B.; Tapp, W. N.; Leme, Paulo Roberto; Goulart, Rodrigo Silva; Fukumasu, Heidge; Johnson, B. J.; Pesce, Domingos Marcelo Cenachi; Silva, Saulo da Luz e

doi:10.1016/j.livsci.2019.05.015

Cited by 8 publications

(16 citation statements)

References 40 publications

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“…The ZH diet was removed three days before slaughter according to the withdrawal period required by law for this product, whereas RH diet was removed one day before slaughter according to the required fasting period. Further information about experimental design, facilities, management and performance and carcass data are described in Antonelo et al (2017), Brigida et al (2018), and Mazon et al (2019).…”

Section: Methodsmentioning

confidence: 99%

“…Greater production efficiency is mandatory in the modern beef cattle industry, and the use of feed additives, such as β-adrenergic agonists (β-AA), has demonstrated positive results on performance and meat production (Arp et al, 2014;Cônsolo et al, 2015;Mazon et al, 2019). β-adrenergic agonists are non-hormonal growth promoters that induce muscle hypertrophy in supplemented animals by increasing muscle protein synthesis and/or decreasing protein breakdown (Dunshea et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

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Effects of combining immunocastration and β-adrenergic agonists on the blood metabolites and their correlations with performance and carcass traits of finished Nellore cattle

Antonelo¹,

Gómez²,

Cônsolo³

et al. 2020

Revista Brasileira De Zootecnia

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of combining immunocastration and β-adrenergic agonists on the blood metabolites and their correlations with performance and carcass traits of finished Nellore cattle

Antonelo¹,

Gómez²,

Cônsolo³

et al. 2020

Revista Brasileira De Zootecnia

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“…On the other hand, other studies reported no effects of ZH supplementation on the color attributes of British steers [ 30 ] and Nellore heifers [ 10 ]. Mazon et al [ 11 ] did not observe any effects of ZH supplementation on the L* values of the longissimus of immunocastrated or non-castrated Nellore males, while lower a* and b* values were observed for the ZH-supplemented animal. However, the same author [ 11 ] found lower Chroma for meat from animal supplemented with ZH, indicating a dull meat color, as it was found in the present study.…”

Section: Discussionmentioning

confidence: 99%

“…Previous studies have reported the effects of feeding ZH and the duration of supplementation on meat quality properties, but few of them evaluated the effect of this metabolic modifier on the meat quality of Zebu cattle [ 10 , 11 , 12 ] and non-castrated males [ 11 , 12 ] that have been raised and finished in tropical regions.…”

Section: Introductionmentioning

confidence: 99%

Meat Quality of Nellore Young Bulls—Effects of Different Days on Feed and Zilpaterol Hydrochloride Supplementation

Caetano

Goulart

Silva

et al. 2021

Animals

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Ninety-six Nellore young bulls were fed (90 or 117 day) diets containing ZH (8.33 mg/kg) for 0, 20, 30, or 40 days to evaluate the effects of days on feed (DOF) and length of zilpaterol hydrochloride (ZH) supplementation on meat quality. At the end of feeding period, animals were slaughtered, and samples of the Longissimus muscle were collected to evaluate the chemical composition, fatty acid profile, color stability, shear force, and sensory profile. DOF did not affect chemical composition, shear force, sensory tenderness, and most of fatty acids; however, animals fed for 90 d had lower redness (p < 0.01), sustained juiciness (p < 0.01), and more flavor (p = 0.03) than those fed for 117 d. The ZH supplementation decreased lipid content and redness (p < 0.01), initial and sustained tenderness (p < 0.01), initial and sustained juiciness (p < 0.01), but increased protein (p < 0.01) and shear force (p < 0.01) as compared to non-supplemented animals. The ZH supplementation increased total PUFA, c9,c12-18:2, and 20:4-n6, and decreased c9-20:1 (p < 0.05). Feeding ZH impairs meat quality attributes of Nellore young bulls, regardless of duration of supplementation, while DOF has a small effect on meat quality properties.

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“…To overcome some of these disadvantages of cattle fed in feedlots, mainly in the last days, the use of β AA has been investigated in finishing diets. Zilpaterol hydrochloride (ZH), a β AA, has the potential to increase weight gain, improve feed efficiency, and increase carcass leanness [ 5 , 6 , 7 , 8 ]. The ZH supplementation in feedlots, during the last 20 to 40 DOF, can offset high feed costs and increase profitability in cattle finished in feedlots.…”

Section: Introductionmentioning

confidence: 99%

Effects of the Duration of Zilpaterol Hydrochloride Supplementation and Days on Feed on Performance, Carcass Traits and Saleable Meat Yield of Nellore Bulls

Caetano

Goulart

Silva

et al. 2021

Animals

Self Cite

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This study evaluated the effects of the duration of ZH supplementation and days on feed (DOF) on performance, carcass characteristics, and saleable meat yield of Nellore young bulls. The fixed effects included the duration (0, 20, 30, or 40 d before slaughter plus a 3 d ZH withdrawal period—8.33 mg of ZH/kg of DM) and DOF (90 and 117 d). Feed efficiency (G:F) linearly increased when the duration of ZH supplementation increased (p < 0.01). Nellore bulls fed ZH had greater HCW (p < 0.01), dressing percentage (p < 0.01) and Longissimus muscle area (LMA) (p < 0.01), but less 12th-rib fat (p = 0.04) than the control group. The hot carcass weight (HCW) (p < 0.01), and dressing percentage increased linearly (p < 0.01) with the increase of duration of ZH supplementation. The HCW, ossification, and 12th-rib fat increased with DOF (p < 0.01). The ZH supplemented group had most of the individual cuts of hindquarters and total saleable meat increased compared with the control. Zilpaterol hydrochloride was effective in improving hot carcass weight, hindquarter, and saleable meat yields of Nellore bulls when fed for at least 20 d before slaughter, independently of days on feed.

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Effects of combining immunocastration and β-adrenergic agonists on the meat quality of Nellore cattle

Cited by 8 publications

References 40 publications

Effects of combining immunocastration and β-adrenergic agonists on the blood metabolites and their correlations with performance and carcass traits of finished Nellore cattle

Effects of combining immunocastration and β-adrenergic agonists on the blood metabolites and their correlations with performance and carcass traits of finished Nellore cattle

Meat Quality of Nellore Young Bulls—Effects of Different Days on Feed and Zilpaterol Hydrochloride Supplementation

Effects of the Duration of Zilpaterol Hydrochloride Supplementation and Days on Feed on Performance, Carcass Traits and Saleable Meat Yield of Nellore Bulls

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