Two experiments were conducted to assess the effects of water medication technology on beef cattle behaviour and performance in tropical conditions. Experiment 1 involved 30 Droughtmaster yearling steers monitored over seven days a controlled environment. Feed consumptions with Smart Pro® systems, three treatments administered via uDOSE® technology. The results indicated an average intake 13.6 L/head/d. 2 had 120 from four genetic groups grazing extensive pasture system. Throughout 24-day...

Water-based nutrient injection technology, widely used in sectors like viticulture, hydroponics, and intensive animal systems, has previously seen limited application livestock production. Early mechanical dispensers for nutrients, such as non-protein nitrogen (NPN) phosphorus (P), were prone to malfunction, leading inconsistent dosing potential health risks. This contributed skepticism slow adoption among producers. However, recent technological advancements have renewed interest...

Abstract Two experiments were conducted to determine the potential for essential oil blend Agolin Ruminant L (Agolin) reduce enteric methane (CH4) emissions from beef cattle when delivered via drinking water. Experiment 1 evaluated aqueous solutions of (50 mg/L) and a nonprotein nitrogen mineral solution (uPRO ORANGE [uPRO]; 1.7 mL/L) individually in combination, where was added concentrated uPRO at 3%, 4.5%, 6% (w/w) prior dilution with water mL/L, total 5 treatments. These incubated 48 h...

The addition of methane-reducing compounds (MRCs) to livestock drinking water presents an alternative method for enteric methane mitigation in extensive systems where these cannot be fed through the diet. This work evaluated several such with potential deployed this manner. Methane-reducing were selected based on existing literature and likelihood dissolution when combined a commercially available water-based nutrient supplement (uPRO) (uPRO ORANGE®, DIT AgTech, QLD, Australia). This, turn,...

The objective of this study was to evaluate the effect 3-nitrooxypropanol (3-NOP) in combination with different feed additives on growth performance, carcass traits, meat quality, enteric methane (CH

This study evaluated different herbage allowances from mid to late pregnancy on pre- and postpartum physiological responses, milk production, the performance of Nellore cows preweaning growth their female offspring. Sixty multiparous were blocked by body weight (BW; 425 ± 36 kg) condition score (BCS; 3.67 0.23, scale 1–5) randomly allocated twelve pastures. Treatments consisted two (HA) during pregnancy: low HA (LHA; 2.80 kg DM/kg BW) high (HHA; 7.60 BW). Both treatment groups fed 1 g/kg BW...

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...

A adubação nitrogenada possibilita aumentar a capacidade de suporte das pastagens, entretanto, o uso elevadas doses pode causar efeitos negativos no crescimento gramíneas forrageiras. partir do pressuposto, objetivou-se avaliar influência crescentes nitrogênio sob as características morfogênicas e estruturais, acúmulo biomassa eficiências conversão recuperação em pastagem Megathyrsus maximus cv. BRS Zuri. Foram testadas cinco (0, 200, 400, 600 800 Kg nitrogênio/ha) delineamento experimental...

Understanding economic scenarios is crucial in all production chains. Tropical pastures are Brazil’s primary food source for beef cattle production, and current pasture management not ideal due to land degradation. An evaluation assists farmers with improving using novel techniques, such as nitrogen (N) fertilization, which straightforward practical. The effects of different N fertilizer levels were evaluated. This study was conducted over three years (2014/2015, 2015/2016, 2016/2017) four...

The objective of this study was to compare rehydrated corn grain silages using water or whey and inoculated (Lactobacillus plantarum Propionibacterium acidipropionici) not. We also verified whether rehydration with associated the bacterial inoculant improves material conservation. treatments were as follows: without (SWa); (SWaI); (SWe); (SWeI). A completely randomized design used, three replications, in a 2 × factorial scheme (RE: whey, IN: inoculation addition chlorine), during following...

Objetivou-se avaliar o efeito do descarte de água residuária suinocultura (ARS) sobre os parâmetros químicos um Latossolo Vermelho-Amarelo distrófico sob cultivo pastagens e determinar uma dose máxima para utilização. A área experimental era ocupada pela forrageira Pennisetum purpureum cv. BRS Kurumi. O experimento teve início em 19 setembro 2013, com duração 93 dias (quatro ciclos produção da forrageira). Foram realizadas quatro aplicações 0, 15, 30, 45, 60 litros ARS nas parcelas, dosagens...

Este estudo avalia o aumento de produtividade da forrageira Urochloa brizantha cv. Xaraés, fertirrigada utilizando diferentes doses água residuária suinocultura (ARS), através experimento em blocos, com parcelas 6 m2 fertirrigadas após cada corte 0, 15, 30, 45 e 60 litros ARS, dosagens que correspondem a 100, 200, 300 400 m3 ha-1 respectivamente. Cortou-se forragem ao atingir 95% interceptação luminosa (altura 35 cm); retiradas amostras representativas para avaliação matéria seca (MS);...

Esta revisão tem por objetivo demonstrar a utilização de águas residuárias no solo, mostrando as controvérsias e limitações dessa aplicação. Em virtude práticas inadequadas quais proporcionam perdas matéria orgânica consequentes alterações nas propriedades físicas, químicas biológicas do sua reduzida fertilidade sido estudada. Desse modo, aplicação forma indiscriminada sem critérios pode constituir um fator negativo, levando à degradação da estrutura solo causando desequilíbrios ambientais....

Objetivou-se avaliar a qualidade fermentativa da silagem de capim-elefante (Pennisetum purpureum) adicionada tortas nabo forrageiro (Raphanus sativus), pinhão manso (Jatropha curcas) ede tremoço (Lupinus albus L). O experimento foi conduzido no Laboratório Pesquisa Animal Universidade Federal Lavras (UFLA), onde os coprodutos foram ensilados em silos experimentais PVC,adaptados com válvula tipo Bunsen. delineamento utilizado o inteiramente casualizado (DIC) trêsrepetições, tratamentos...

Abstract This study was conducted to evaluate the impact of maternal nutrition, during middle and final thirds pregnancy Nellore dams pregnant with female calves, on milk yield performance offspring from calving weaning. The experiment lasted 390 days, divided into two phases: gestational phase (150 days - June November 2019) nursing (240 November/2019 July/2020). Forty-two multiparous calves were used [initial BW 425 ± 36 kg body condition score (BCS) 3.67 0.23] in a randomized block design...

Abstract The study aimed to evaluate the impact of forage allowance (FA) on performance, during pregnancy until weaning, dams pregnant with Nellore female calves subjected two different FA middle and final thirds pregnancy. experiment lasted 390 days, divided into phases: gestational phase (150 days - from June November 2019) nursering (240 November/2019 July/2020). Multiparous n = 42; initial BW 425 ± 36 kg body condition score (BCS) 3.67 0.23] were used in a randomized block design...

Abstract The objective was to evaluate the effect of different forage allowance in mid late gestation on performance cow/calf pair. experiment started at final 151 days (D-151) until weaning (D205). Nellore cows pregnant with male calves [n = 56; 444±42 kg body weight (BW)] were blocked by initial BW and randomly assigned receive allowances (FA): (1) Low (LFA; 2.81 kgDM)/kgBW; (2) High (HFA; 7.58 kgDM/kgBW) calving (d0); divided into 6 blocks 12 paddocks 7.5 ha each consisting Urochloa...