Effect of exogenous enzymes on digestibility of barley silage and growth performance of feedlot cattle

1999 ◽  
Vol 79 (3) ◽  
pp. 353-360 ◽  
Author(s):  
T. A. McAllister ◽  
S. J. Oosting ◽  
J. D. Popp ◽  
Z. Mir ◽  
L. J. Yanke ◽  
...  
Keyword(s):  
Organic Matter ◽  
Average Daily Gain ◽  
Xylanase Activity ◽  
Latin Square ◽  
Feedlot Cattle ◽  
Endoglucanase Activity ◽  
Bacterial Populations ◽  
Digestible Organic Matter ◽  
Barley Silage ◽  
Daily Gain

Barley silage was sprayed with water or with a 2:1 combination of commercial cellulase and xylanase preparations, or the enzymes were introduced directly into the rumen, in a digestibility study (replicated incomplete 3 × 3 Latin square) using 10 sheep. Apparent digestibilities of dry matter (DM) and neutral detergent fibre (NDF) were lower (P < 0.05) when enzymes were dosed intraruminally than when applied to silage, but enzymes by either route did not affect (P > 0.05) intake of DM, organic matter or digestible organic matter, or digestibilities of DM or NDF, ruminal pH, xylanase activity, endoglucanase activity or ruminal cellulolytic bacterial populations. Treating the silage portion of an 82.5% barley silage backgrounding diet with the enzyme mix at 0, 1.25, 3.5 or 5.0 L t−1 DM tended to linearly increase (P = 0.08) final weights of steers (n = 24). Average daily gain tended to be (P = 0.06) and feed intake and feed efficiency were (P = 0.04 and P = 0.03, respectively) quadratically related to these enzyme concentrations from days 0 to 56, but not overall (days 0 to 120). In contrast, treatment of both portions (forage and concentrate) of a 70% barley-ryegrass silage finishing diet at 3.5 L t−1 DM increased (P < 0.01) the average daily gain of finishing feedlot cattle by 10%. Carcass weights and traits were not affected (P > 0.1) by enzyme supplementation. In this study, treating the total mixed ration improved feedlot cattle performance more than treating the silage component alone. Key words: Enzymes, beef cattle, growth, barley silage

Effect of dried distillers’ grains from wheat on diet digestibility and performance of feedlot cattle

2008 ◽  
Vol 88 (4) ◽  
pp. 659-665 ◽  
Author(s):  
D. J. Gibb ◽  
X. Hao ◽  
T. A. McAllister
Keyword(s):  
Dry Matter ◽  
Energy Content ◽  
Average Daily Gain ◽  
Feedlot Cattle ◽  
Dried Distillers Grains ◽  
Distillers Dried Grains ◽  
Feeding Value ◽  
And Performance ◽  
Barley Silage ◽  
Daily Gain

In a 55-d backgrounding period, 120 (n = 22) British cross heifers (312 ± 20 kg) received diets containing 55% barley silage, 5% supplement and 0 (n = 24), 20 (n = 24), or 40% (n = 22) wheat distillers’ dried grains with solubles (DDGS). The remainder of the diet was steam-rolled barley. Replacing half (20%) or all (40%) of the barley with DDGS did not affect dry matter intake (DMI) (P = 0.61), average daily gain (ADG) (P = 0.86), or gain:feed (P = 0.94), indicating the energy content of DDGS is similar to that of barley when included in backgrounding diets. During a 133-d finishing period, DDGS were included at 0, 20, 40, or 60% of diet dry matter (DM) or at 60% plus additional calcium, provided as 1% limestone (n = 24). Additional calcium did not (P > 0.1) affect DMI, ADG, or gain:feed. Increasing levels of DDGS linearly increased (P = 0.001) DMI and reduced (P = 0.04) gain:feed and diet NEg content (P = 0.001), but had no effect on ADG (P = 0.20). Feeding 60% DDGS reduced (P < 0.01) DM digestibility as compared with the control. Wheat DDGS has similar feeding value as barley when included at 20% of diet DM, but digestibility and energy content decline with higher levels of inclusion. Key words: Beef, digestibility, distillers' dried grains, wheat

scholarly journals 401 Effect of zinc source and ractopamine hydrochloride on the growth performance and carcass characteristics of steers fed in confinement to harvest

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 160-160
Author(s):  
John Wagner ◽  
William T Nelson ◽  
Terry Engle ◽  
Jerry Spears ◽  
Jeff Heldt ◽  
...  
Keyword(s):  
Feed Efficiency ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Feedlot Cattle ◽  
Beef Steers ◽  
Live Animal ◽  
Zinc Source ◽  
Dressing Percentage ◽  
Ractopamine Hydrochloride ◽  
Daily Gain

Abstract Four hundred and thirty-two beef steers (346.3 ± 63.7 kg BW) were used to determine the effects of Zn source on feedlot cattle fed ractopamine hydrochloride. Cattle were blocked in groups of 54 by BW and housed in 48 pens containing 9 steers per pen. Pens within a weight block were randomly assigned to treatments in a 2 x 3 factorial arrangement, with factors being: 1) 0 or 30.1 mg of ractopamine HCl/kg DM fed during the final 29 days on feed; and 2) Zn source: 90 mg of supplemental Zn/kg DM from ZnSO4; Zn sulfate (67%) + Zn methionine (33%); and Zn from Zn hydroxychloride, fed through the entire feeding period. Cattle were fed a high concentrate finishing diet for 154 d and slaughtered at a commercial abattoir. Average daily gain, DMI, feed efficiency and carcass characteristics were determined after slaughter. Zinc source had no impact on live animal performance. Cattle fed ractopamine HCl had greater (P &lt; 0.01) final BW, greater (P &lt; 0.001) ADG, improved (P &lt; 0.001) G:F, heavier (P &lt; 0.01) HCW, and larger (P &lt; 0.05) longissimus muscle compared to non-ractopamine supplemented steers. There was a Zn source by ractopamine interaction (P &lt; 0.01) for dressing percentage. Cattle receiving ractopamine HCl with Zn hydroxychloride had a greater dressing percentage (P &lt; 0.05) when compared to ractopamine HCl cattle fed other Zn sources. Cattle receiving ractopamine HCl with Zn sulfate had a lesser dressing percentage (P &lt; 0.05) when compared to ractopamine HCl cattle fed other Zn sources. Additional Zn source by ractopamine HCl interactions were not significant. These data indicate that Zn source has minimal impacts on feedlot steer performance and carcass characteristics when supplemented to cattle receiving 0.0 or 30.1 mg of ractopamine HCl/kg DM.

scholarly journals 268 Administering an appeasing substance to optimize welfare and performance of receiving cattle

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 193-193
Author(s):  
Eduardo Colombo ◽  
Reinaldo F Cooke ◽  
Alice Brandão ◽  
Jacob Wiegand ◽  
Kelsey Schubach ◽  
...  
Keyword(s):  
Feed Intake ◽  
Feed Efficiency ◽  
Treatment Effects ◽  
Average Daily Gain ◽  
Plasma Concentrations ◽  
Feedlot Cattle ◽  
Skin Area ◽  
And Performance ◽  
Antimicrobial Treatments ◽  
Daily Gain

Abstract This experiment evaluated the impacts of bovine appeasing substance (BAS) administration on performance, health, and physiological responses of feedlot cattle during a 45-d receiving period. A total of 342 recently-weaned Angus-influenced steers, originating from 16 cow-calf operations, were obtained from an auction yard on d -1 and road-transported (12 h) to the feedlot. Upon arrival on d 0, body weight (BW) was recorded and steers were ranked by BW and source and assigned to receive BAS (Nutricorp, Araras, SP, Brazil; n = 171) or placebo (diethylene glycol monoethyl ether; CON; n = 171). Treatments (5 mL) were topically applied to the nuchal skin area of each animal. Within treatment, calves were allocated to 1 of 24 drylot pens (12 pens/treatment) and received a free choice total-mixed ration from d 1 to 45. Calves were assessed for bovine respiratory disease (BRD) signs and feed intake was recorded from each pen daily. Steer BW was again recorded on d 1, 7, 17, 31, and 45, whereas blood samples were collected from 5 steers/pen concurrently with each BW assessment. Average daily gain was greater (P = 0.05) in BAS vs. CON calves, although final BW did not differ (P = 0.36) between treatments. No treatment effects were detected for feed intake (P = 0.95), resulting in greater (P = 0.05) feed efficiency in BAS vs. CON steers. No treatment effects were detected (P ≥ 0.37) for plasma concentrations of haptoglobin, whereas plasma cortisol concentrations were greater (P = 0.05) in CON vs. BAS steers on d 7 (treatment × day; P = 0.07). Incidence of BRD was greater (P ≤ 0.05) in BAS vs. CON on d 6 to 10 and d 18 to 21 (treatment × day; P &lt; 0.01), although overall BRD incidence did not differ (P = 0.24) between treatments. The number of antimicrobial treatments required per steer diagnosed with BRD symptoms to recover from sickness was greater (P = 0.04) in CON vs. BAS calves. No treatment differences were detected (P ≥ 0.41) for mortality incidence, or proportion of steers removed from the experiment due to extreme sickness. Results from this experiment indicate BAS administration upon feedlot entry improved average daily gain by enhancing feed efficiency. Administration of BAS facilitated earlier detection of BRD and reduced the need for antimicrobial treatments. Collectively, these results suggest BAS administration as a promising strategy to benefit performance and immunocompetence of feedlot receiving cattle.

scholarly journals Pengaruh Suplementasi Ampas Tahu, Ampas Tempe dan Ampas Kecap dalam Ransum Terhadap Performan Domba Lokal Jantan

2017 ◽  
Vol 5 (1) ◽  
pp. 1
Author(s):  
Eka Handayanta
Keyword(s):  
Body Weight ◽  
Organic Matter ◽  
Crude Protein ◽  
Average Daily Gain ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Soy Sauce ◽  
Feed Consumption ◽  
Feed Conversion ◽  
Daily Gain

<p class="Style2"><em>The aim of this research to determine the effect of supplementation of tofu. </em><em>tempe, and soy sauce waste in ration on male local sheep performance. This </em><em>research was carried out during three month, take place on July until October </em><em>200E in Minifarm Dept. of Animal Science, Agriculture Faculty of Sebelas Maret </em><em>University, located in Jatikuwung. Gondangrejo, Karanganyar. It used </em><em>12 </em><em>male </em><em>local sheeps with average body weight of </em><em>15.86 ±0.93 </em><em>kg, divided into four treatments and three replications, each replication consist of one sheep.</em><em> </em><em>The ration consisted of king grass only as basal diet, </em><em>as many as four percent </em><em>base on body weight. The treatment given is in the form of feed supplement, that </em><em>namely without supplement </em><em>(RO), </em><em>250 </em><em>gram tofu waste (R1), </em><em>250 </em><em>gram tempe </em><em>waste </em><em>(R2), and </em><em>250 </em><em>gram soy sauce waste </em><em>(R3). </em><em>The data variables collected </em><em>were </em><em>feed consumption, dry and organic matter digestibility, crude protein </em><em>consumption, energy consumption, average daily gain, and feed conversion ratio. </em><em>All of data except average daily gain was analyzed by completely randomized </em><em>design one way classification. While average daily gain was analyzed by </em><em>covariance analyze. The result were significant followed by Duncan new multiple </em><em>range test.</em><em> </em><em>The result showed that average of </em><em>R0, RI, </em><em>R2 and </em><em>R3 </em><em>for feed consumption </em><em>430.52; 720.44; 704.44; 549.08 </em><em>gram/day, dry matter digestibility (%) </em><em>61,07; 72,46; 69,68: 63,60, organic matter digestibility (%) </em><em>64,41: 74,94; 72.41; 64,7 1, </em><em>crude protein consumption 47.66; 106.77; 85.83; 73.70 gram/day, energy consumption </em><em>281.82; 482.65; 432.67; 330.83 </em><em>gram/day, average daily gain </em><em>50.00.</em><em><sup>­</sup></em><em>1X00: 116.19; 38.10 </em><em>gram/day and feed conversion ratio </em><em>8.74; 5.61; 6.06; 15.2. </em><em>The result of variance analyze showed that feed supplementation have highly </em><em>significant effect (P&lt;0.01) on all of the data variable colected. Conclusion of this </em><em>research was supplementation of tofu waste and tempe waste could improved </em><em>performance, while soy sauce waste could not improved the performance of male </em><em>local sheep.</em></p><p><em> </em></p><em>Key words : sheep, tofu waste, tempe waste, soy sauce waste, performance</em>

Effect of leucaena supplementation level, and provision of urea, on utilisation by sheep of Rhodes grass hay

2001 ◽  
Vol 41 (2) ◽  
pp. 155 ◽  
Author(s):  
I. W. Karda ◽  
G. McL. Dryden
Keyword(s):  
Organic Matter ◽  
Rumen Fluid ◽  
Latin Square ◽  
Rhodes Grass ◽  
Microbial Nitrogen ◽  
Grass Hay ◽  
Digestible Organic Matter ◽  
Ruminal Degradation ◽  
Chloris Gayana ◽  
Dietary Treatments

Tarramba leucaena (Leucaena leucocephala cv. Tarramba) foliage had per kilogram dry matter, 169 g protein and 29.8 g condensed tannins. Its value as a supplement, given either with or without urea, to sheep given a low-quality Callide Rhodes grass (Chloris gayana cv. Callide) hay was studied. Six rumen fistulated sheep (mean s.d. liveweight, 34 1.4 kg) were used to compare 6 dietary treatments in an incomplete latin square design. Rhodes grass hay was given ad libitum either alone, or with urea 7 g/day (U), or with leucaena 150 g/day (L150), or leucaena with urea (L150U), or leucaena 300 g/day (L300), or leucaena with urea (L300U). Digestible organic matter intake was increased significantly by leucaena supplementation although digestibility of the whole diet did not alter. Rumen fluid ammonia-N was not altered by leucaena supplementation, but was increased by urea. This suggests that Tarramba foliage protein has some resistance to ruminal degradation. Liquid and solids passage rates were not affected by the treatments. Microbial nitrogen supply to the intestine (g/day), and the efficiency of microbial nitrogen synthesis (g/kg organic matter apparently digested in the rumen), were increased by leucaena supplementation (P<0.01). Microbial protein synthesis was the only response in which 300 g/day air-dry Tarramba foliage gave improved results over 150 g/day.

INFLUENCE OF HIGH-MOISTURE BARLEY ON THE PERFORMANCE AND CARCASS CHARACTERISTICS OF FEEDLOT CATTLE

1988 ◽  
Vol 68 (3) ◽  
pp. 811-820 ◽  
Author(s):  
J. J. KENNELLY ◽  
G. W. MATHISON ◽  
G. de BOER
Keyword(s):  
Dry Matter ◽  
Free Choice ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Barley Grain ◽  
Feedlot Cattle ◽  
Feed Conversion ◽  
High Moisture ◽  
Feeding Value ◽  
Daily Gain

Three factorial experiments were conducted to determine the relative feeding value of dry barley (DB) and high-moisture barley (HMB), and to evaluate the influence of method of ensiling (Pit vs. Harvestore® (HAV) silo), source of roughage (hay vs. silage), and level of concentrate (90 vs. 75%) on the performance and carcass characteristics of feedlot cattle. In exp. 1, 252 steers (initial wt 357 kg) were assigned on the basis of weight to six treatments (two pens × 21 animals per pen). A mixed diet consisting of 85.2% barley grain (dry matter (DM) basis) was offered free choice. The barley portion of the ration consisted of either 0, 25, 50, 75 or 100% DB with the balance being HMB from a pit silo. The sixth treatment consisted of feeding 100% HMB for the first 57 d and 100% DB for the remainder of the trial. Overall average daily gain (ADG) for steers fed 100% DB (1.70 kg d−1) was significantly higher than observed for animals fed 100, 75 or 50% HMB (1.46, 1.49 and 1.56 kg d−1, respectively). The kg of feed DM required per kg gain (FC) varied between 5.76 and 7.13 and was not (P > 0.05) influenced by treatment. No differences (P > 0.05) were observed in carcass characteristics. In exp. 2, 360 steers (initial wt 340 kg) were allotted on the basis of weight to six treatments designed to evaluate the effect of source (Pit vs. HAV) and level of HMB, in diets containing 10.2% silage, on animal performance. Overall ADG (1.11 – 1.17 kg d−1), FC (6.66 – 7.01) and carcass characteristics were similar (P > 0.05) for animals fed Pit HMB, HAV HMB and DB. In exp. 3, 264 weanling calves (initial wt 216 kg) were allotted on the basis of weight to six treatments which differed in type of barley (HMB vs. DB), source of roughage (hay vs. silage) and level of concentrate (75 vs. 90%; DM basis). The feeding period was 127 d. Daily gains varied between 0.78 and 0.91 kg d−1 and FC ranged from 6.40 to 7.10 and were not influenced (P > 0.05) by source of barley or source or level of roughage. While animals fed DB had significantly higher ADG than those fed HMB in exp. 1, the overall results from the three experiments indicate that on a DM basis HMB has similar feeding value to DB, and that there is no major difference between Pit and HAV-stored HMB for feedlot cattle. Key words: High moisture, barley, cattle, gain, feed conversion

Effect of amount of rumen degradable protein on the utilization of wheat straw by Dohne Merino wethers

2003 ◽  
Vol 76 (2) ◽  
pp. 319-326
Author(s):  
J. van E. Nolte ◽  
A.V. Ferreirat ◽  
H.H. Köster
Keyword(s):  
Organic Matter ◽  
Wheat Straw ◽  
Volatile Fatty Acids ◽  
Latin Square ◽  
Ammonia Nitrogen ◽  
Microbial Nitrogen ◽  
Digestible Organic Matter ◽  
Microbial Efficiency ◽  
Forage Intake ◽  
Degradable Protein

AbstractA 5 ✕ 5 Latin square was conducted with ruminally and duodenally cannulated Dohne Merino wethers consuming wheat straw to determine the effect of different rumen degradable protein (RDP) levels on forage intake, fermentation characteristics, nutrient flow and digestion. The wethers had ad libitum access to water and wheat straw (32 g crude protein (CP) per kg dry matter (DM); 742 g neutral-detergent fibre (NDF) per kg DM) that was offered twice daily, immediately after intraruminal infusion of the supplements at 07:00 and 19:00 h. The supplemental RDP (calcium caseinate; 900 g CP per kg DM) levels were: 0, 40, 80, 120 and 160 g/day. Each period consisted of 14 days of adaptation and 6 days of sampling. Forage and total organic matter (OM) intakes increased in a linear manner (P < 0•01) with increasing supplemental RDP levels. Digestible organic matter intake (DOMI) displayed a quadratic increase with elevated amounts of RDP (P < 0•01). The effects of treatments on rumen and total tract digestion, as well as fluid dilution rate were minimal. Microbial nitrogen (MN) flow to the duodenum and microbial efficiency increased quadratically (P < 0•04) with increased RDP supplementation. Rumen ammonia nitrogen (NH3-N) concentrations increased linearly (P < 0•01) and total volatile fatty acids (VFA) tended to increase linearly (P = 0•07). In conclusion, RDP supplementation to Dohne Merino wethers consuming wheat straw generally enhanced rumen fermentation and forage intake. A total RDP intake (sources: calcium caseinate and wheat straw) of 3•30 g/kg M0•75 or 0•12 of DOM maximized DOMI.

SOME EFFECTS OF METHANE INHIBITION IN RUMINANTS (STEERS)

1972 ◽  
Vol 52 (4) ◽  
pp. 703-712 ◽  
Author(s):  
E. D. JOHNSON ◽  
A. S. WOOD ◽  
J. B. STONE ◽  
E. T. MORAN JR.
Keyword(s):  
Corn Oil ◽  
Average Daily Gain ◽  
Saturated Fat ◽  
Latin Square ◽  
Soluble Carbohydrate ◽  
Once Daily ◽  
Unsaturated Fat ◽  
Post Feeding ◽  
Beet Pulp ◽  
Daily Gain

Four steers were used in a 4 × 4 latin square experiment to assess comparative antimethanogenic effects of including bromochloromethane (BCM) (5.5 g once daily), unsaturated fat (corn oil), and saturated fat (tallow) at 5% in experimental diets. Basic dietary ingredients were citrus pulp and beet pulp plus hay. Average daily gain (ADG) and ruminal parameters including soluble carbohydrate and total volatile fatty acid (TVFA) concentrations, VFA’s percentages, and pH were measured. Only BCM proved significantly (P < 0.05) antimethanogenic. Maximal inhibition occurred 0–6 hr post-feeding, by 15 hr inhibition was reduced by 50% and absent at 24 hr. Ruminal TVFA, pH, and average daily gain were not significantly affected (P > 0.05) by CH4 inhibition, although average daily gain showed the following trend: BCM > saturated fat > unsaturated fat > control. Inhibition caused lower (P < 0.05) ruminal acetate, and higher (P < 0.05) propionate over 24 hr post-feeding, higher (P < 0.05) butyrate from 3–15 hr post-feeding, and consistent measurable quantities of valerate and isovalerate. Soluble CHO concentration was maximal 0–6 hr post-feeding.

scholarly journals THE PERFORMANCE OF DAIRY AND FEEDLOT CATTLE FED SULFUR DIOXIDE-TREATED HIGH-MOISTURE BARLEY

1988 ◽  
Vol 68 (2) ◽  
pp. 471-482 ◽  
Author(s):  
D. M. GIBSON ◽  
J. J. KENNELLY ◽  
G. W. MATHISON
Keyword(s):  
Sulfur Dioxide ◽  
Milk Yield ◽  
Dry Matter ◽  
Average Daily Gain ◽  
Milk Composition ◽  
Feedlot Cattle ◽  
High Moisture ◽  
Lactating Dairy Cows ◽  
Dietary Treatments ◽  
Daily Gain

Two experiments were conducted to determine the influence of feeding sulfur dioxide (SO2)-treated high-moisture barley (HMB) on the performance of lactating dairy cows and feedlot cattle. High-moisture barley was ensiled or treated with 1% (wt/wt) liquid SO2. In exp. 1, 36 lactating Holstein cows were assigned to three treatments for a 6-wk trial. Diets contained 35% rolled barley on a dry matter (DM) basis and differed only in the type of barley fed: dry barley, ensiled HMB or SO2-treated HMB. While no differences (P > 0.05) were observed in DM intake, milk yield, milk composition, milk taste or odour, cows fed SO2-treated HMB tended to have lower milk yield (21.7 kg d−1) than those fed ensiled (22.6 kg d−1) or dry barley (24.6 kg d−1). In experiment 2, 64 steers were allotted to four dietary treatments: (1) dry barley, (2) ensiled HMB, (3) SO2-treated HMB, and (4) SO2-treated HMB plus sodium bicarbonate. All diets contained 85% barley (DM) and were supplemented with thiamin (5.5 mg kg−1 DM). The results of the feedlot trial were confounded by the feeding of spoiled SO2-treated HMB, primarily between days 29 and 57 of the 96-d trial, at approximately 40% of the diet DM. During the period that spoiled SO2-treated grain was being fed, four steers (two from each treatment) developed polioencephalomalacia. Steers fed SO2-treated HMB (diets 3 and 4), had 10.1% lower DM intake (P < 0.01), 31% lower average daily gain and required 32% more DM per kilogram of gain than steers fed diets 1 or 2 (P < 0.001). Feeding SO2-treated HMB to either dairy or feedlot cattle cannot be recommended at the present time. Key words: Sulfur dioxide, preservative, barley, cattle (dairy, beef)

Use of triticale silage in diets for growing steers

1992 ◽  
Vol 72 (1) ◽  
pp. 181-184 ◽  
Author(s):  
D. R. ZoBell ◽  
L. A. Goonewardene ◽  
D. F. Engstrom
Keyword(s):  
Key Words ◽  
Feed Efficiency ◽  
Dry Matter ◽  
Average Daily Gain ◽  
Barley Grain ◽  
Dry Matter Intake ◽  
High Moisture ◽  
Key Words Barley ◽  
Barley Silage ◽  
Daily Gain

A total of 120 steers were fed either barley silage (BS) or triticale silage (TS) combined with barley (B) or high-moisture barley (HMB) grain, as a total mixed ration in a 2 × 2 factorial design with three replications. The barley and triticale yields were 9.8 and 8.7 t ha−1, respectively. No differences (P > 0.05) in weight, average daily gain, dry matter intake or feed efficiency were observed for treatments or interactions. TS can be used to replace BS at moderate levels in growing steer rations containing barley grain. Key words: Barley, triticale, silage, steers, performance

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