This study evaluated how the backgrounding diet can affect water intake, animal performance and feed efficiency of steers fed finishing diets based on grains or forages. Twenty-four crossbred Angus (298 ± 10.2 kg) were during either a moderate (MP, n = 12; triticale hay only, 9.1%crude protein [CP], 1.07 Mcal/kg net energy available for maintenance [NEm], 0.52 gain [NEg]) high plane nutrition (HP, 85% alfalfa 15% beardless wheat hay, 12.62%CP, 1.23 NEm, 0.66 NEg) background phase (85 d)....

The objective of this study was to evaluate the effects replacing corn and soybean meal with a combination wheat bran urea in protein-energy supplement on productive, nutritional, metabolic characteristics grazing suckling beef calves. Fifty-two Nellore calves (87±4.95 days age; 111.3±5.98 kg initial body weight [BW]) were allocated completely randomized design 4 treatments 13 replicates. 140-d trial evaluated consisting progressive (0, 50, 100%) control group receiving only mineral mixture....

This study aimed to understand how molecular mechanisms controlling water and urea metabolism at the finishing phase can be affected by previous plane of nutrition crossbred Angus beef steers. Twenty-four (n = 24) animals were randomly distributed into either a moderate (MP) or high during background for 85 d. Animals then blocked their moved onto 105-d in 2 × factorial arrangement. The forage-finished group received only high-quality alfalfa hay, whereas grain-fed grain diet (80% whole corn...

The objective of this study was to evaluate the effect alternative protein sources (castor bean cake, sunflower and seed) soybean meal on intake performance 40 lambs, initially weighing 19.8±1.84 kg, fed diets based Tifton grass hay. experimental design completely randomized blocks. There were no differences in nutrient castor compared with meal. nutrients cake seed decreased apparent digestibility coefficients dry matter, organic crude protein, neutral detergent fiber average daily weight...

RESUMO -Objetivou-se avaliar as características de carcaça ovinos da raça Santa Inês alimentados com mazoferm em substituição ao farelo soja (0,0; 33,0; 66,0 e 100,0%).Foram utilizados 32 animais machos, não castrados, peso médio inicial 21 ± 2,3 kg idade média quatro meses, distribuídos delineamento blocos casualizados abatidos após 70 dias confinamento.Não foi observado efeito sobre os consumos matéria seca (1,103 kg/dia) NDT (0,74 kg/dia), porém o consumo proteína bruta apresentou...

Context Supplementation during the pre- and post-weaning periods is essential to improve development of beef heifers in tropical pastures. Especially dry period, performance limited due low forage yield poor nutritional value. Aim Evaluate effect supplementation on performance, nutritional, metabolic characteristics Nellore under grazing. Methods Fifty-four were randomly divided between following four plans, with two replicates: NN, not supplemented period; NS, pre-weaning period SN, SS,...

Abstract Aiming to characterize the effects of nutritional status on epigenetic markers, such as DNA 5-methyl cytosine (mC) methylation and RNA N6-methyladenosine (m6A) methylation, bovine sperm, 12 Angus × Hereford crossbred breeding bulls were submitted changes for a period 180 d: no change in body weight (BW) (phase 1 = d), BW loss 2 78 gain 3 90 d) repeated measures design. Animals fed Beardless wheat (Triticum aestivum) hay mineral mix. Statistical analyses performed using SAS 9.4 (SAS...

<p>Objetivou-se avaliar o efeito de diferentes proporções concentrado e bagaço cana-de-açúcar como volumoso exclusivo em dietas para ovinos. Os consumos matéria seca, orgânica, proteína bruta, carboidratos não fibrosos nutrientes digestíveis totais expressos kg/dia, aumentaram linearmente com aumento da proporção na dieta. O mesmo comportamento foi observado a digestibilidade seca. que ocorreu forma contrária fibra detergente neutro, diminuiu os maiores níveis concentrado. Com das nas...

Abstract Creating ensiled forage on a laboratory-scale is tedious and cumbersome process. One must ensure an anaerobic environment for the success of fermentation while also striving to replicate field-scale conditions. The objective this experiment was determine effect silo type nutritive value profiles grass-legume silage. This conducted as generalized complete block design. There one treatment factor (silo type) with 11 levels: baleage control (CON), miniature wrapped (MINI), large bucket...

Abstract Identifying causal relationships is complicated. Researchers usually overlook causality behind which can generate misleading associations. Herein, we carefully examine the parametric relationship and between wildfire smoke exposure animal performance behavior metrics over a period of 2 yr in Reno, Nevada. The animals 2020 season were grain-finished (n = 12) grass-finished 12), whereas during 2021 fed under same diet but finished with either hormonal implant 9), or without 9)....

Abstract The objective of this study was to examine how different backgrounding and finishing systems might affect nitrogen (N) metabolism, consequently water requirements cattle. Further, we investigated if the previous plane nutrition results obtained in subsequent phase. Cattle (n = 24) were randomly distributed into either a moderate (MP; crude protein (CP): 9.10%) or high (HP; CP: 12.62%) during background phase for 85 d. Animals then blocked by their moved onto 105-d forage-finished...

Abstract Since the 1960s, detergent fiber fractions have had a fundamental role in animal nutrition. Not only was this system an improvement on measurement of cell wall material, it has also helped advance our understanding and prediction forage intake digestibility. The ANKOM analyzer, introduced 1990s, streamlined assay, multiple technical improvements been that increased level automation procedure. To date, however, there not evaluation influence choice apparatus results. objective study...

Abstract Herein, we investigate the effects of a long-term release trenbolone acetate and estradiol implant (200 mg 40 respectively, Revalor-XS; Merck Animal Health; Summit, NJ) on implanted [IMP; n = 9, body weight (BW) 473.13 kg ± 25.22] non-implanted (NIMP; BW 481.13 21.78) finished Angus Hereford steers fed single diet three times daily (0600, 1100, 1600 h). The objectives were to identify water feed efficiency parameters mechanisms IMP NIMP steers. Parameters evaluated included dry...

Abstract This study aimed to characterize the effects of dietary restriction and subsequent re-alimentation on body composition hepatic gene expression epigenetic markers DNA methylation, RNA m6A histone acetylation in liver postpubertal beef bulls. Twelve Angus × Hereford crossbred bulls (n = 6, 23 ± 0.55 mo [young bulls], 558 6.1 kg; n 47 1.2 [mature 740 30.5 kg) were submitted two regimes per offering same hay: low plane nutrition (90 d) compensatory growth d). Each animal acted as its...

Abstract Buffers are an essential component in various biochemical and biophysical assays, enabling the control of pH shifts environment. The Tilley Terry (1963) Goering Van Soest (1970) methods dominate vitro forage digestibility research with equally viable results. However, utilize distinct buffer solutions to Given this divergence, it is interest whether differences estimates a factor methodology, or employed method. objective study was determine effects DM (IVDMD) methodology solution...

Abstract This study aimed to evaluate the effect of hemp varieties and cannabidiol (CBD) concentrations on in vitro ruminal microbiota diversity abundance relative do alfalfa (Medicago sativa). Two ruminally cannulated Angus steers were used as inoculum donors for incubation. 160-mL serum bottles containing 200 mg air-dried either alfalfa, fedora 17 (F17) felina 32 after late harvest (F32S) or without seeds (F32O) incubated 14 mL buffering media 4 rumen inoculum. A stock solution 1mg/mL CBD...

Abstract Identifying causal relationships on a large-scale system is highly complicated, and when not careful, statistical theories may be violated, biological spurious claims generated. The causality between livestock health/performance wildfire smoke has been investigated. To critically evaluate the effects of wildfire, air quality data was obtained validated with sensors (1.6 km from feedlot) before analyses. Herein, we examine influence environmental parameters dry matter intake (DMI),...

Abstract The objective of this study was to evaluate how the previous nitrogen levels (PNL) in diet might affect balance and nitrogen-related genes rumen either forage-fed or grain-fed steers during finishing. Twenty-four crossbred Angus were randomly distributed into one two backgrounding nutritional plans: moderate (MP; crude protein (CP): 9.10%) high (HP; CP:12.6%). After 85 d, animals blocked by PNL, transitioned, fed a finishing for 105 which consisted alfalfa only (forage-fed; CP:...

Abstract Changes to native plant compositions of drylands are often associated loss wildlife, increased frequency, and severity wildfires; further, it complicates the grazing permits allocation during periods restoration. The goals herein investigate germination rates seed species after in situ incubation evaluate their potential dispersal as supplements for cattle. Native: Indian ricegrass (Achnatherum hymenoides; ACHY), white yarrow (Achillea millefolium; ACMI), crested wheatgrass...

Abstract The use of cover crops in agriculture has had positive effects on soil health and sustainability. In the western US, utilizing for silage production provides many same benefits while providing forage ruminants, serving multiple sectors with water costs. Therefore, aim this study was to determine mixed grass legume combined different inoculants quality vitro rumen fermentation. Four mixes (100% sorghum [0SB], 67% + 33% soybean [33SB], [67SB], 100% [100SB]) were prepared 6 treatments...

Abstract Water requirements for beef cattle are often computed according to body weight (BW) and environmental variables. Inherent variation in conditions within geographical locations, addition a cascade of physiological changes triggered as consequence such variability somewhat fomented by multicollinearity amongst these This conundrum generates instability current predictive models reaching optimization equilibrium inflating its overall predictability robustness. The goals herein involved...