Effect of 3-Nitrooxypropanol Combined with Different Feed Additives on Growth Performance, Carcass Traits, Enteric Methane Emissions, and Physiological Response in Feedlot Beef Cattle Fed a High-Concentrate Finishing Diet

• DOI: 10.20944/preprints202409.2127.v1
• Publication Date: 2024-09-27T01:04:10Z
• Authors: William Luiz de S...; Maria Betânia Nie...; Abmael da Silva C...; Victor Valério de...; Alexandre Perdigão; Tiago Sabella Acedo; Diogo Fleury Azev...; Luis Fernando Mon...; Maik Kindermann; Ricardo Andrade Reis
• Keywords: Feedlot; Beef Cattle; Methane Emissions; Carcass weight; Cattle feeding; Feed additive

The objective was to evaluate the effect of 3-nitrooxypropanol (3-NOP) in combination with dif-ferent feed additives on growth performance, carcass traits, meat quality, enteric methane (CH4) emissions, nutrient intake and digestibility, blood parameters feedlot beef cattle. In ex-periment (Exp.) 1, one hundred sixty-eight Nellore bulls (initial bodyweight (BW) 410 ± 8 kg) were allocated 24 pens a completely randomized block design. Exp. 2, thirty (Initial BW 3 collective pen Three treatments applied: Control (CTL): Sodium monensin (26 mg/kg dry matter, DM), M3NOP: CTL 3-NOP (100 DM) Combo: essential oils 25-Hydroxy-Vit-D3 (0.10 organic chromium (4 zinc (60 DM). Exp Combo had greater (P