Performance, Meat Quality and Meat Metabolomics Outcomes: Efficacy of 3-Nitrooxypropanol in Feedlot Beef Cattle Diets.

Autor: Pedrini, Cibeli Almeida, Machado, Fábio Souza, Fernandes, Alexandre Rodrigo Mendes, Cônsolo, Nara Regina Brandão, Ocampos, Fernanda Maria Marins, Colnago, Luiz Alberto, Perdigão, Alexandre, de Carvalho, Victor Valério, Acedo, Tiago Sabella, Tamassia, Luis Fernando Monteiro, Kindermann, Maik, Gandra, Jefferson Rodrigues
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Zdroj: Animals (2076-2615); Sep2024, Vol. 14 Issue 17, p2576, 22p
Abstrakt: Simple Summary: This study was conducted with the primary aim of assessing the dosage of 3-nitrooxypropanol, its effectiveness in methane mitigation performance of feedlot cattle, and its impact on the quality of meat. The results obtained through its application have already demonstrated its efficacy as an additive for methane reduction. Consequently, further research is warranted to confirm its suitability for use in commercial production. 30 Nellore animals with an average weight of 407.25 ± 2.04 kg, were distributed in a completely randomized design across the following treatments: 1—Control (without inclusion of 3-NOP); 2—BV75 (inclusion of 3-NOP at 75 mg/kg DM); 3—BV100 (inclusion of 3-NOP at 100 mg/kg DM). No significant effects were observed between treatments on ingestive behavior. However, the notable effect on the BWfinal and ADG of animals supplemented with 3-NOP compared to the control group was measurable. Cattle beef receiving 3-NOP exhibited reduced methane emissions (p < 0.0001) for all variables analyzed, resulting in an average decrease of 38.2% in methane emissions compared to the control, along with increased hydrogen emissions (g/day) (p < 0.0001). While supplementation with BV100 demonstrated lower methane emission, the performance was lower than BV75 in DMI, BWfinal, ADG, and ADG carcasses. Partial separation of metabolomics observed between groups indicated changes in meat metabolism when comparing the control group with the 3-NOP group, identifying metabolites with a variable importance projection (VIP) score > 1. In conclusion, supplementation with 3-NOP effectively reduced methane emissions and did not negatively influence animal performance. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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