PSIV-6 Effect of a Direct Fed Microbial Feed Additive on Finishing Beef Cattle Performance and Liver Abscess Rate

2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 212-212
Author(s):  
Kelton Adair ◽  
Samodha Fernando ◽  
Galen E Erickson ◽  
Alison Bartenslager ◽  
Zachary E Carlson
Keyword(s):  
Beef Cattle ◽  
Liver Abscess ◽  
Average Daily Gain ◽  
Fusobacterium Necrophorum ◽  
Feed Additive ◽  
Bacterial Cells ◽  
Liver Abscesses ◽  
Significant Difference ◽  
Gate System ◽  
Finishing Beef Cattle

Abstract A feedlot study was conducted comparing the effects of a direct-fed microbial feed additive (DFM) to no feed additive (CON) on performance and liver abscess rates in finishing beef cattle. The study utilized 60 crossbred steers (initial BW 274 kg ± 2.23) individually fed using a Calan gate system. Steers were housed in separate pens by treatment to avoid DFM cross-contamination, with pen (barn of 30 steers) assigned randomly to each treatment. Cattle were fed a diet consisting of 15% corn silage, 36.5% high moisture corn, 24.5% dry rolled corn, 20% modified distillers grains, and 4% supplement for 189 days. The DFM counts were estimated using cell cytometry and was top dressed at a concentration of approximately 81 billion bacterial cells/head/day. The DFM additive used in this study was developed to reduce the abundance of Fusobacterium necrophorum and Streptococcus bovis in the rumen. No effect of treatment on hot carcass weight (HCW), average daily gain (ADG), dry matter intake (DMI), feed efficiency (G:F), or carcass traits (Table 1) were observed. No significant difference in the occurrence of liver abscesses between treatment groups were observed with 4 steers having abscessed livers in the CON group and 3 steers in the DFM group. Additionally, there were no differences in the severity of liver abscesses; all observed liver abscesses received the score of A. The DFM utilized in this study did not significantly affect performance, liver abscess rate, or the severity of liver abscesses in finishing beef cattle.

430 Impact of a Natural Feed Additive or Tylosin on Finishing Beef Cattle Performance and Liver Abscess Rate.

2018 ◽  
Vol 96 (suppl_2) ◽  
pp. 230-231
Author(s):  
H C Wilson ◽  
F H Hilscher ◽  
B M Boyd ◽  
J C MacDonald ◽  
G E Erickson
Keyword(s):  
Beef Cattle ◽  
Liver Abscess ◽  
Feed Additive ◽  
Finishing Beef Cattle ◽  
Cattle Performance

scholarly journals Impact of a phytogenic feed additive on growth performance, feed intake, and carcass traits of finishing steers

2019 ◽  
Vol 3 (4) ◽  
pp. 1162-1172
Author(s):  
Tassilo Brand ◽  
Martin Hünerberg ◽  
Tim A McAllister ◽  
Maolong He ◽  
Atef M Saleem ◽  
...  
Keyword(s):  
Growth Performance ◽  
Feed Intake ◽  
Dry Matter ◽  
Average Daily Gain ◽  
Carcass Traits ◽  
Feed Additive ◽  
Muscle Area ◽  
Mineral Supplement ◽  
Liver Abscesses ◽  
Finishing Steers

Abstact: The purpose of this study was to evaluate the effect of a phytogenic feed additive (Digestarom [DA]; Biomin, Getzersdorf, Austria) on growth performance, feed intake, carcass traits, fatty acid composition, and liver abscesses of finishing steers. One hundred twenty Angus × Charolais crossbred steers (488 ± 26.5 kg) were used in a 110-d feeding experiment. Steers were blocked by weight and randomly assigned to 12 pens with 10 steers per pen. Each pen was allocated to one of three diets. Each diet contained 86.5% barley, 10.0% barley silage, and 3.5% vitamin and mineral supplement on a dry matter (DM) basis. The diets contained 0, 0.05, and 0.1 g DA/kg complete diet (DM basis), to achieve average daily DA intakes of 0 (control), 0.5 (LowDA), and 1.0 g (HighDA) per steer. Diets were prepared once daily and provided ad libitum. Two pens per treatment were equipped to record individual feed intake behavior. Steers were weighed every 28 d and carcass traits and liver scores were recorded at slaughter. Dry matter intake (average: 9.34 kg/d) did not differ (P > 0.05) among diets. Average daily gain tended to increase linearly as DA increased (control: 1.82; LowDA: 1.87; and HighDA: 1.95 kg/d; P < 0.09), but gain:feed ratio was not affected. Supplementation of DA affected longissimus muscle area quadratically (P = 0.05) with the largest area observed for LowDA. However, dressing percentage decreased linearly in response to increasing level of DA (P < 0.01). Total abscessed livers were not affected, whereas proportion of severe liver abscesses was numerically lower with DA (30.8% and 42.5% for LowDA and HighDA) compared to the control (50%).

scholarly journals Use of barley or corn silage when fed with barley, corn, or a blend of barley and corn on growth performance, nutrient utilization, and carcass characteristics of finishing beef cattle

2019 ◽  
Vol 4 (1) ◽  
pp. 129-140 ◽  
Author(s):  
Jordan A Johnson ◽  
Brittney D Sutherland ◽  
John J McKinnon ◽  
Tim A McAllister ◽  
Gregory B Penner
Keyword(s):  
Body Weight ◽  
Beef Cattle ◽  
Growth Performance ◽  
Carcass Characteristics ◽  
Corn Silage ◽  
Neutral Detergent Fiber ◽  
Feed Ratio ◽  
Final Body Weight ◽  
Liver Abscesses ◽  
Finishing Beef Cattle

Abstract The objective of this study was to evaluate the effects of the source of silage, cereal grain, and their interaction on growth performance, digestibility, and carcass characteristics of finishing beef cattle. Using a completely randomized design within an 89-d finishing study, 288 steers were randomly assigned to 1 of 24 pens (12 steers/pen) with average steer body weight (BW) within a pen of 464 kg ± 1.7 kg (mean ± SD). Diets were arranged in a 2 × 3 factorial with corn silage (CS) or barley silage (BS) included at 8% (dry matter [DM] basis). Within each silage source, diets contained dry-rolled barley grain (BG; 86% of DM), dry-rolled corn grain (CG; 85% of DM), or an equal blend of BG and CG (BCG; 85% of DM). Total tract digestibility of nutrients was estimated from fecal samples using near-infrared spectroscopy. Data were analyzed with pen as the experimental unit using the Mixed Model of SAS with the fixed effects of silage, grain, and the two-way interaction. Carcass and fecal kernel data were analyzed using GLIMMIX utilizing the same model. There were no interactions detected between silage and grain source. Feeding CG increased (P < 0.01) DM intake by 0.8 and 0.6 kg/d relative to BG and BCG, respectively. Gain-to-feed ratio was greater (P = 0.04) for BG (0.172 kg/kg) than CG (0.162 kg/kg) but did not differ from BCG (0.165 kg/kg). Furthermore, average daily gain (2.07 kg/d) and final body weight did not differ among treatments (P ≥ 0.25). Hot carcass weight (HCW) was 6.2 kg greater (372.2 vs. 366.0 kg; P < 0.01) and dressing percentage was 0.57 percentage units greater (59.53 vs. 58.96 %; P = 0.04) for steers fed CS than BS, respectively. There was no effect of dietary treatment on the severity of liver abscesses (P ≥ 0.20) with 72.0% of carcasses having clear livers, 24.4% with minor liver abscesses, and 3.6% with severe liver abscesses. Digestibility of DM, organic matter, crude protein, neutral detergent fiber, and starch were greater for BG (P < 0.01) than CG or BCG. As expected, grain source affected the appearance of grain kernels in the feces (P ≤ 0.04). Feeding CS silage increased the appearance of fractured corn kernels (P = 0.04), while feeding BS increased fiber appearance in the feces (P = 0.02). Current results indicate that when dry rolled, feeding BG resulted in improved performance and digestibility compared with CG and BCG. Even at low inclusion levels (8% of DM), CS resulted in improved carcass characteristics relative to BS.

scholarly journals PSIV-20 Impact of OutPace® Feed Additive on nursery pig growth performance: A meta-analysis

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 175-176
Author(s):  
Benjamin Bass ◽  
Stacie Crowder ◽  
Terry Weeden ◽  
Murali Raghavendra Rao ◽  
Brenda de Rodas ◽  
...  
Keyword(s):  
Feed Intake ◽  
Feed Efficiency ◽  
Meta Analysis ◽  
Block Design ◽  
Phase 1 ◽  
Average Daily Gain ◽  
Feed Additive ◽  
Significant Difference ◽  
The Impact ◽  
Daily Gain

Abstract OutPace® Feed Additive (OP), contains a carefully researched blend of activated medium chain fatty acids (MCFAs; PMI, Arden Hills, MN), formulated to help mitigate the effects of stress in nursery pigs. Several studies using OP in both late and full nursery periods resulted in improved pig performance. A meta-analysis using 9 studies (4 studies during late nursery [15 to 26.8 kg BW] and 5 studies during the full nursery [5.9 to 25.4 kg]) was done to determine the impact of OP (included at 0.25% Phase 1 and 2; 0.125% Phase 3) on average daily gain, average daily feed intake, and feed conversion. The combined data was considered a randomized complete block design. Analysis of variance was completed with mixed models using the GLIMMIX procedure of SAS (SAS 9.4, SAS Institute Inc., Cary, NC) and least squares means were compared using Fisher’s least significant difference (P < 0.05). In the analysis of 5 studies conducted in late nursery (45 pens/treatment of 6 to 20 pigs/pen), pigs provided OP had higher average daily gain (0.67 vs 0.63 kg/d; P < 0.05), increased average daily feed intake (0.99 vs 0.97 kg/d; P < 0.05), and improved feed efficiency (0.67 vs 0.65 kg gain/kg feed intake; P < 0.05) compared to pigs fed control diets. Additionally, when pigs were provided OP throughout the nursery period (20 pens/treatment of 7 to 20 pigs/pen), average daily gain was increased 6.1% (0.48 vs 0.45 kg/d; P < 0.05), average daily feed intake tended to be increased 2.2% (0.62 vs 0.61 kg/d; P < 0.1), and feed efficiency was improved 2.7% (0.76 vs 0.74 kg gain/kg feed intake; P < 0.05) compared to pigs provided control diets. In conclusion, providing OP to pigs during the nursery period improved ADG and feed efficiency.

scholarly journals Effects of active dry yeast on growth performance, rumen fermentation characteristics and slaughter performance in beef cattle

2019 ◽  
Author(s):  
Siqiang Liu ◽  
Mei Yuan ◽  
Kun Kang ◽  
Zhisheng Wang ◽  
Lizhi Wang ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Relative Abundance ◽  
Average Daily Gain ◽  
Neutral Detergent Fiber ◽  
Carcass Weight ◽  
Control Group ◽  
Microbial Composition ◽  
Significant Difference ◽  
Slaughter Performance ◽  
Active Dry Yeast

AbstractThis study aimed to investigate the effects of active dry yeast (ADY) on rumen microbial composition and slaughter performance of beef cattle. Thirty-two finishing beef cattle (simmental crossbred cattle ♂ × cattle-yaks ♀), with an average body weight of 110 ± 12.85 kg, were randomly assigned to one of four treatments: the low plane of nutrition group (Control), low plane of nutrition group + ADY 2 g/head/d (ADY2), low plane of nutrition group + ADY 4 g/head/d (ADY4) and high plane of nutrition group (HPN). ADY supplementation increased average daily gain (P<0.001), and the carcass weight of ADY4 group had no significant difference with HPN group (P>0.05). The serum glutamic-pyruvic transaminase activity in control and ADY4 group was higher than HPN group (P=0.001). The neutral detergent fiber (P=0.022) and acid detergent fiber (P=0.043) digestibility in HPN group was greater than control, but no difference was obtained among ADY2, ADY4 and HPN group (P>0.05). The rumen ammonium nitrogen content in control was greater than ADY2 and ADY4 group (P=0.003), and no difference was obtained ADY2, ADY4 and HPN group (P>0.05). The propionic acid content in the rumen in ADY2, ADY4, and HPN group were greater than control group (P<0.001). The simpson (P=0.014) and shannon (P=0.045) indexes in control and HPN group were greater than ADY4 group. At the phylum level, the relative abundance of Firmicutes in the HPN group was higher than ADY4 group (P=0.015). At the genus level, HPN and ADY4 were clustered together, and the relative abundance of Ruminococcaceae UCG-002 in ADY4 group was higher than control and HPN group (P=0.004). In conclusion, supplementation ADY 4 g/head/d shift the rumen microbial composition of beef cattle fed low plane of nutrition to a more similar level with cattle fed with HPN diet, produced comparable carcass weight with HPN diet.

PSXIII-24 Is it possible to finish beef cattle in feedlot and be environmentally friendly?

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 436-436
Author(s):  
Andre Pastori D Aurea ◽  
Lauriston Bertelli Fernandes ◽  
Luis Eduardo Ferreira
Keyword(s):  
Beef Cattle ◽  
Dry Matter ◽  
Essential Fatty Acids ◽  
Average Daily Gain ◽  
Environmentally Friendly ◽  
Dry Matter Intake ◽  
Omega 3 ◽  
Growth Promoters ◽  
Finishing Beef Cattle ◽  
Natural Additive

Abstract To improve production without affecting the environment, the objective of this research was to evaluate a natural additive to replace the conventional growth promoters in finishing beef cattle diets. 160 Nellore bulls were assigned into two treatments, where the only difference was the additive used: natural additive (Fator P - 600 mg/kg DM) and conventional growth promoters (25 mg/kg DM of monensin + 20 mg/kg DM of virginiamycin). The Fator P® is an organic additive certificated by IBD, which is a blend of the compounds; amino acids (lysine, methionine, and tyrosine), choline, minerals, probiotics and essential fatty acids (omega 3 and omega 6). The diet contained 14% CP and 76% TDN. Nellore young bulls (n = 160), weighing 433 ± 7 kg, with an average age of 24 months, were used. The feedlot facilities contained 16 collective pens, in which 10 animals were allocated. The animal performance was evaluated for 84 days, with 21 days of adaptation. Means were compared with 5% of significance. The conventional growth promoters reduced the dry matter intake. Natural 11.33 kg/day and 10.9 kg/day for the conventional. The conventional growth promoters reduced in 0.43 kg of dry matter intake (P = 0.042) or 0.1% of body weight (P = 0.001; 2.26% to 2.16%). No difference in average daily gain (P = 0.58). 1.655 kg/day for natural and 1.625 for the conventional. The feed efficiency ratio wasn’t different (P = 0.71), natural 146 g / kgMSˉ¹ and 148 g / kgMSˉ¹ for conventional. There were no difference in carcass yield (P = 0.89), mean 56.3%. The natural additives can improve the dry matter intake and can be used as an alternative to antibiotics in high concentrate diets for beef cattle in feedlot system. Thus, finishing beef cattle in the feedlot can be environmentally friendly.

307 Effect of Feeding Distilllers Grain from Wheat on Growth Performance of Growing and Finishing Beef Cattle

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 170-171
Author(s):  
Wenzhu Yang
Keyword(s):  
Beef Cattle ◽  
Growth Performance ◽  
Average Daily Gain ◽  
Barley Grain ◽  
Canola Meal ◽  
Finishing Diets ◽  
Ruminal Ph ◽  
Ruminal Acidosis ◽  
Research Findings ◽  
Finishing Beef Cattle

Abstract The uniqueness of wheat-based distiller grain (wDG) with high protein and digestible fibre gives great feeding opportunities for cattle as energy, protein or fiber source. This abstract summarizes recent research findings on the use of wDG in beef cattle diets. For growing beef cattle, steers fed diets (forage:concentrate, 55:45) with increasing replacement of barley grain with wDG from 0, 8, 16, 24 to 32% (DM basis) linearly (P &lt; 0.01) increased average daily gain (ADG) from 1.09 to 1.28 kg/d and DM intake (DMI) from 7.26 to 7.94 kg/d without affecting gain:feed (0.158). By comparing protein source of canola meal and corn DG in diets containing 60% of silage and 40% of barley grain, steers fed wDG diet had similar ADG (1.46 kg/d) with corn DG (1.51 kg/d), and had no differences in gain:feed (0.178) with canola meal (0.183). For finishing beef cattle, with increasing wDG from 10, 20 to 40% in the place of barley grain of finishing diets, the DMI linearly (P &lt; 0.01) increased from 10.2 to 10.9 kg/d, whereas, the gain:feed linearly (P &lt; 0.01) decreased from 0.172 to 0.159 without altering the ADG (1.74 kg/d). The wDG was also suggested to be fed as fiber source to replace roughage in finishing diet. Entirely substitution of wDG for roughage of finishing diet decreased (P &lt; 0.01) ruminal pH from 5.95 to 5.75 of beef heifers; however, the ADG and gain:feed of steers were not affected. The results suggested that although substitution of wDG for roughage in finishing diets may increase the incidence of ruminal acidosis, this outcome does not appear to adversely impact the performance of the cattle. The wDG can be successfully incorporated to substitute a portion of grain or roughage within growing and finishing diets with minimal or no adverse impact on cattle growth performance.

scholarly journals 186 Utilizing craft brewing side streams of trub, hops, and yeast mix (THYM) as a novel feed additive and an alternative to monensin in beef cattle diets

2020 ◽  
Vol 98 (Supplement_2) ◽  
pp. 50-50
Author(s):  
Kendra P Phipps ◽  
Deidre D Harmon ◽  
Matt H Poore ◽  
Ethan Henderson ◽  
Robert Bryant ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Repeated Measures ◽  
Dry Matter ◽  
Negative Impact ◽  
Rumen Fluid ◽  
Average Daily Gain ◽  
Fatty Acid Analysis ◽  
Feed Additive ◽  
D 63 ◽  
Matter Basis

Abstract The objective of this experiment was to evaluate craft brewing side streams of trub, hops and yeast mix (THYM) as a potential feedstuff and replacement for monensin in growing beef cattle rations. British-cross steers (n = 45, initial BW = 732 ± 58kg) were stratified by BW and randomly assigned to 1 of 15 pens (3 head/pen). Treatment diets were randomly assigned to pen and consisted of a corn silage based total mixed ration (TMR) with no supplementation (CON; 70.99% TDN, 12.25% CP), supplementation with monensin (MON; 22g/907kg ration, dry matter basis) or supplementation with the brewery side streams (THYM; 70.95% TDN, 12.49% CP, 2.65% THYM, dry matter basis). Steers were adjusted to a TMR for 14 d prior to a 63 d collection period. Body weight and serum urea nitrogen (SUN) were measured on d 0 and every 21 d thereafter. Rumen fluid was collected via esophageal/rumen tube at d 42 and 63 for short chain fatty acid analysis (SCFA). Data were analyzed using the MIXED procedure of SAS 9.4 (Cary, NC) with treatment as the main effect and using repeated measures. Average daily gain and dry matter intake did not differ among treatments (P = 0.40 and P = 0.96, respectively), but a tendency was noted for THYM to have greater average gain:feed than the CON treatment. SUN concentrations were least on d 0 (P &lt; 0.01) but did not differ among treatments at any time (P =0.11). On d 42, THYM had a greater (P = 0.05) A:P than MON. Concentrations of propionic and valeric acid were greater (P &lt; 0.05) for CON than THYM on d 63, while SCFA concentrations tended to be greater (P = 0.08) for CON than THYM. THYM also tended to have a greater A:P on d 63 than CON. Interpretation of the data indicates that inclusion of THYM in growing cattle rations has no negative impact on animal performance.

scholarly journals Supplementation for beef cattle on Marandu grass pastures with different herbage allowances

2016 ◽  
Vol 56 (1) ◽  
pp. 123 ◽  
Author(s):  
A. P. De Oliveira ◽  
D. R. Casagrande ◽  
L. M. A. Bertipaglia ◽  
R. P. Barbero ◽  
T. T. Berchielli ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Dry Matter ◽  
Average Daily Gain ◽  
Protein Supplementation ◽  
Stocking Rate ◽  
Beef Heifers ◽  
Protein Energy ◽  
Continuous Grazing ◽  
Significant Difference ◽  
Daily Gain

The objective of this study was to evaluate the performance of beef heifers on Stapf. cv. Marandu grass pastures that were managed at three herbage allowances under continuous grazing with a variable stocking rate and were provided with mineral mix supplement or supplements with energy and protein. Seventy-two test heifers and 48 put-and-take heifers were used in a randomised design in a 3 × 2 factorial arrangement [three herbage allowances (1.5, 2.0, and 2.5 kg of green dry matter/kg of bodyweight, and two supplementation levels (mineral mix or 0.3% bodyweight of a mineral–protein–energy supplement)], with two replicates per treatment (paddocks), to maintain the pre-established forage allowance. No significant difference was observed in the gain per hectare as a function of the herbage allowance, but 2.5 kg green dry matter/kg bodyweight provided the greatest average daily gain of bodyweight (0.605 kg/animal/day). The energy/protein supplementation provided the greatest average daily gain compared with animals fed only the mineral mix. The supplements in the diet of beef heifers fed at 0.3% of bodyweight increased bodyweight gains without compromising the gain per hectare at different herbage allowances.

Performance of finishing beef cattle fed diets containing maize silages inoculated with lactic-acid bacteria and Bacillus subtilis

2019 ◽  
Vol 59 (2) ◽  
pp. 266 ◽  
Author(s):  
Carlos H. S. Rabelo ◽  
André L. S. Valente ◽  
Rondineli P. Barbero ◽  
Fernanda C. Basso ◽  
R. A. Reis
Keyword(s):  
Bacillus Subtilis ◽  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Beef Cattle ◽  
Growth Performance ◽  
Average Daily Gain ◽  
Protein Digestibility ◽  
Acid Detergent Fibre ◽  
Finishing Beef Cattle ◽  
Silage Additives

Our objective was to evaluate the effect of lactic-acid bacteria and Bacillus subtilis as silage additives on feed intake and growth performance of finishing feedlot beef cattle. Whole-maize forage was ensiled either with distilled water (untreated), or inoculated with Lactobacillus buchneri and L. plantarum at a rate 1 × 105 cfu/g fresh forage for each bacteria (LBLP); or inoculated with B. subtilis and L. plantarum at a rate 1 × 105 cfu/g fresh forage for each bacteria (BSLP). Thirty-six young crossbreed bulls (316 ± 33.9 kg) were used in the feedlot program for 110 days, and they were assigned (n = 12) to one of three diets containing untreated, LBLP, or BSLP silages in a 40:60 forage:concentrate ratio. Dry matter (DM) intake, average daily gain, and carcass yield of bulls were unaffected by silage inoculation. Conversely, bulls fed the BSLP silage had lower DM, organic matter, and crude protein digestibility compared with bulls fed untreated silage. Bulls fed both inoculated silages had a reduction of ~12% in neutral detergent fibre and acid detergent fibre digestibility compared with that in bulls fed untreated silage. Bulls fed the LBLP silage spent more time chewing (496 min/day) than bulls fed untreated silage. There was little effect of silage inoculation on rumen fermentation, but bulls fed the inoculated silages had a lower concentration of ammonia-N. In conclusion, adding L. plantarum combined with L. buchneri or B. subtilis to maize silage do not improve the growth performance of finishing feedlot beef cattle.

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