Por favor, use este identificador para citar o enlazar este ítem: https://hdl.handle.net/20.500.12008/51622

Título:

Daily Gain, Feed Conversion, and Rumen Fermentation in Finishing Steers Fed a Total Mixed Ration Supplemented with a Blend of Essential Oils, Tannins, and Bioflavonoids or Monensin

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Autor:

Repetto, José Luis
Ciancio Bruni Falero, Eliana Yoselin
Castro, Guillermo
Santana Fernández, Álvaro
Cajarville, Cecilia

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BOVINOS
ALIMENTACION DE LOS ANIMALES
ADITIVOS ALIMENTARIOS
MONENSINA
ACEITES ESENCIALES
TANINOS
ENGORDE

Año de publicación:

2025

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Resumen:

This study investigated the effects of adding a blend of essential oils, tannins, bioflavonoids (ANAVRIN®, VetosEurope, Lugano, Switzerland), monensin, and their combination on the daily gain, feed conversion, and rumen fermentation of finishing steers fed a total mixed ration (TMR). Thirty finishing steers (441 kg body weight, 34.3 months old) consuming a TMR were blocked by BW and randomly assigned to three treatments according to the addition of (1) EOTB (ANAVRIN® at 0.35 g/100 kg body weight), (2) MON (monensin at 0.033 g/kg dry matter), and (3) EOTB + MON (at the same dose as in (1) and (2). A 60-day feeding trial was conducted, including a 19-day adaptation period. Data collected included daily dry matter intake (DMI), average daily gain (ADG), feed conversion ratio (FCR), and rumen fermentation parameters (pH, NH3-N, and volatile fatty acid (VFA) concentrations). EOTB resulted in higher DMI compared to EOTB + MON, while no significant differences were observed in ADG or FCR. The ruminal pH and NH3-N concentrations were similar among treatments, but there were interactions among treatment × hour for VFAs. The EOTB + MON led to a more stable VFA concentration in rumen suggesting possible complementary supplementation effects. However, more studies are needed to confirm this and to go deeper into the underlying mechanism of action.

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Animals, 2025, 15(4), 594, 1-11

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Repetto, J, Ciancio Bruni Falero, E, Castro, G, Santana Fernández, Á y Cajarville, C. Daily Gain, Feed Conversion, and Rumen Fermentation in Finishing Steers Fed a Total Mixed Ration Supplemented with a Blend of Essential Oils, Tannins, and Bioflavonoids or Monensin. Animals. [en línea] 2025, 15(4), 594, 1-11

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Licencia Creative Commons Atribución (CC - By 4.0)
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