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

Antonelo, Daniel Silva; Gómez, Juan Fernando Morales; Cônsolo, Nara Regina Brandão; Mazon, Madeline Rezende; Nubiato, Keni Eduardo Zanoni; Souza, Camilla de; Netto, Arlindo Saran; Silva, Saulo da Luz e

doi:10.37496/rbz4920190146

Cited by 2 publications

(3 citation statements)

References 37 publications

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“…Parr et al [ 36 ] observed an increase in serum NEFA concentrations in response to the use of ZH. However, several studies, including the current study, did not find any effect of ZH in serum NEFA concentrations [ 29 , 37 , 38 ]. On the other hand, Cônsolo et al [ 6 ] observed that serum NEFA and glucose concentrations were lower in ZH fed than that in the control group.…”

Section: Discussioncontrasting

confidence: 73%

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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

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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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Section: Discussioncontrasting

confidence: 73%

“…Previous studies reported a decrease of serum urea in animals fed ZH, due to either an increase in tissue nitrogen deposition or a decrease of protein catabolism in muscle tissue [ 29 , 35 , 36 , 37 ]. As expected, in the present study, serum urea was 8.5% greater in the control group compared to the ZH group.…”

Section: Discussionmentioning

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

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“…Regarding LW, the only correlated compound was SDMA (r = 0.51). In a study conducted by Antonelo et al [ 50 ], a weak correlation of slaughter BW with blood creatine kinase (r = 0.23) and albumin (r = −0.24) was found in Nellore cattle. These authors also found a correlation between blood profile (Urea, Creatinine, Albumin, triglycerides, cholesterol, etc.)…”

Section: Discussionmentioning

confidence: 99%

Effects of Different Prenatal Nutrition Strategies on the Liver Metabolome of Bulls and Its Correlation with Body and Liver Weight

Polizel¹,

Cançado²,

Fernandes³

et al. 2022

Metabolites

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This study investigated the effect of prenatal nutrition on liver metabolome and on body (BW) and liver weight (LW) of Nellore bulls at slaughter. Three treatments were applied in 126 cows during pregnancy: NP—control (mineral supplementation); PP—protein-energy supplementation in the third trimester; and FP—protein-energy supplementation during the entire pregnancy. Offspring BW and LW were evaluated, and a targeted metabolomics analysis was performed on their livers (n = 18, 22.5 ± 1 months of age). Data were submitted to principal component analysis (PCA), analysis of variance (ANOVA), enrichment analysis, and Pearson’s correlation analysis. The phenotypes did not show differences between treatments (p > 0.05). Metabolites PCA showed an overlap of treatment clusters in the analysis. We found significant metabolites in ANOVA (p ≤ 0.05; Glycine, Hydroxytetradecadienylcarnitine, Aminoadipic acid and Carnosine). Enrichment analysis revealed some biological processes (Histidine metabolism, beta-Alanine metabolism, and Lysine degradation). Pearson’s correlation analysis showed 29 significant correlated metabolites with BW and 1 metabolite correlated with LW. In summary, prenatal nutrition did not show effects on the phenotypes evaluated, but affected some metabolites and biological pathways, mainly related to oxidative metabolism. In addition, BW seems to influence the hepatic metabolome more than LW, due to the amount and magnitude of correlations found.

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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

Cited by 2 publications

References 37 publications

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

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

Effects of Different Prenatal Nutrition Strategies on the Liver Metabolome of Bulls and Its Correlation with Body and Liver Weight

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