scholarly journals 233 Effects of Harvest Maturity And/or Kernel Processing on Corn Silage Processing Score and Particle Size of Corn Silage

2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 11-12
Author(s):  
Thomas Hamilton ◽  
Julie Walker ◽  
Warren C Rusche ◽  
Zachary K Smith
Keyword(s):  
Particle Size ◽  
Corn Silage ◽  
Experimental Unit ◽  
Randomized Design ◽  
Simple Effect ◽  
Penn State ◽  
Particle Separator ◽  
Harvest Maturity ◽  
Early Harvest ◽  
Corn Hybrid

Abstract A single corn hybrid was used to evaluate harvest maturity (Mat) and/or kernel processing (KP) effects on corn silage processing score (CSPS) and particle size (PS). Treatments were arranged in a 2 × 2 factorial of 1) Mat (early and late) and 2) KP (no or yes). A single corn field was planted on April 27, 2020. There were 12 loads (experimental unit) per simple effect treatment mean. Data were analyzed as a completely randomized design. Early harvest occurred on August 28, 2020 [yield (as is) = 39.1 Mg/hectare; DM = 43.1%; CP, NDF, and starch = 6.5, 46.0, and 32.9%, respectively (DM basis)]. Late harvest occurred on September 9, 2020 [yield = 37.8 Mg/hectare (as is); DM = 49.2%; CP, NDF, and starch = 6.6, 49.8, and 37.5%, respectively (DM basis)]. The same equipment was used for both Mat with KP achieved by narrowing processing rollers. The CSPS was determined as the proportion of starch retained below a 4.75-mm sieve. Grain content (DM basis) of the corn silage was calculated from starch/0.72. Particle size was assessed using the Penn State Particle Separator. A Mat × KP interaction (P = 0.05) was detected for CSPS. Early/no and late/no had decreased (P ≤ 0.05) CSPS compared to early/yes and late/yes had the greatest CSPS (P ≤ 0.05) compared to others. Grain content was 13.9% greater in late compared to early (P = 0.01). A Mat × KP interaction (P = 0.03) was detected for PS. Early/no had the greatest (P ≤ 0.05) PS, early/yes and late/no were intermediate, and late/yes had decreased PS compared to others (P ≤ 0.05). These data indicate that Mat and KP influence CSPS synergistically. Producers should consider KP when corn silage is harvested at a later maturity to enhance CSPS.

scholarly journals 181 Evaluation of mixer performance in cattle finishing diets with 15 or 30 percent dry matter basis inclusion of corn silage

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 129-129
Author(s):  
Elizabeth M Buckhaus ◽  
Zachary K Smith
Keyword(s):  
Dry Matter ◽  
Energy Content ◽  
Corn Silage ◽  
Net Energy ◽  
Finishing Diets ◽  
Randomized Design ◽  
Penn State ◽  
Inclusion Level ◽  
Particle Separator ◽  
Daily Gain

Abstract Batch fraction (BF), corn silage inclusion level (DIET), and mixing duration (DUR) were evaluated in an experiment using finishing diets based on corn silage and a blend of dry-rolled (DRC) and high-moisture corn (HMC). A 2.35 m3 horizontal mixer was used to manufacture all diets. The experiment was designed as a 5 x 2 x 2 factorial arrangement with nine replications per simple treatment mean. Factors included: 1) BF (n = 5), 2) DIET (n = 2) containing (DM basis) 15% corn silage or 30% corn silage replacing the corn blend, and 3) DUR (n = 2) of 20 or 25 mixer revolutions. Diets contained corn silage, a 1:1 ratio of DRC:HMC, a liquid supplement (5% DM inclusion), and a meal supplement (7% DM inclusion). Data were analyzed as a completely randomized design using the GLIMMIX procedure of SAS 9.4 (SAS Inst., Inc., Cary, NC) using a multinomial approach. The Penn State Particle Separator was used to separate fractions of the total mixed ration (TMR) with special interest on the portion of the TMR retained on the 19 mm sieve. No interactions between BF, DIET, and REV were detected (P ≥ 0.44). There was a 53.5% increase (P = 0.01) in retention on the 19 mm sieve from the first BF (first 20% of the TMR unloaded from the mixer) compared to the last BF (last 20% of the TMR unloaded from the mixer). The LOW diet had 71.3% decrease (P = 0.01) in retention on the 19 mm sieve (2.13 vs. 7.43 ± 0.220%) compared to the HIGH diet. Increasing DUR from 20 to 25 revolutions had no appreciable influence (P = 0.23) on particles greater than 19 mm. These data indicate that BF fed could alter dry matter intake, dietary net energy content, and influence daily gain. Wednesday, July 22, 2020

scholarly journals EFFECT OF PELLET CONTAINING CASSAVA LEAVES MEAL AT VARIOUS PARTICLE SIZE ON BROILER

2016 ◽  
Vol 14 (1) ◽  
pp. 9-13
Author(s):  
R. Noviadi Noviadi ◽  
A. A. Candra
Keyword(s):  
Particle Size ◽  
Animal Husbandry ◽  
Nutrient Digestibility ◽  
Metabolizable Energy ◽  
Production Performance ◽  
Experimental Unit ◽  
Uniform Size ◽  
Cassava Leaves ◽  
Broiler Production ◽  
Randomized Design

The addition of cassava leaves meal (CLM) in broiler rations in the form of  pellets require specific and uniform size because it will determine the characteristics of the material, especially the particle size plays an important role during the process of making ration (mixing and pelleting process).  Research has been conducted from March to October 2013 in the Laboratory of the Department of Animal Husbandry. The study aims to look at the characteristics of the pellet that containing cassava leaves meal by using a variety of screen sizes as well as its influence on metabolizable energy, nutrient digestibility, histology of the digestive tract and broiler performance. Research using a completely randomized design (CRD), with three treatments and seven replicates and each experimental unit consisted of nine broilers. The treatment applied is T1 = CLM  milled using screen of 2 mm, T2 = CLM milled using screen of 3 mm, and T3 = CLM milled using screen of 5 mm. Observations included physical characteristics of the pellets, nutrients digestibility, metabolizable energy, histology of ileum and broiler production performance. The data obtained were tested by analysis of variance and a further test usingDuncan's multiple range test. The results showed that CLM milled using 2 mm screen to produce a compact pellet characteristics and performance of broiler production is better than the screen size 3 and 5 mm and the pellet with CLM milled using a screen 2, 3, and 5 mm produce normal ileal tissue in broiler.

scholarly journals PSXII-22 Performance of Nellore bulls fed with rehydrated corn silage or rehydrated sorghum silage or sorghum grain in substitution of corn grain

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 419-419
Author(s):  
Josimari R Paschoaloto ◽  
Laissa A Guimarães ◽  
Ellem Maria A Matos ◽  
Severino D Junqueira Villela
Keyword(s):  
Body Weight ◽  
Basal Diet ◽  
Corn Silage ◽  
Experimental Unit ◽  
Mineral Supplement ◽  
Final Body Weight ◽  
Randomized Design ◽  
Sorghum Silage ◽  
Sorghum Grain ◽  
Corn Grain

Abstract The aim of this study was to evaluate the corn grain cracked substitution by sorghum grain, rehydrated corn silage, or rehydrated sorghum silage on animal performance. Thirty-two Nellore bulls initially weighing 324.76 ± 36.0 were used in a completely randomized design distributed in four treatments: corn grain (CG), sorghum grain (SG), rehydrated corn silage (RCS) and rehydrated sorghum silage (RSS). Pen was considered the experimental unit. Response variables included: final body weight (FBW) and dry matter intake (DMI). The basal diet consisted of (DM basis) of 30% sorghum silage as roughage, and 70% of concentrate, consisted of corn grain or sorghum grain or rehydrated corn silage, or rehydrated sorghum silage, soybean hulls, soybean meal, and mineral supplement. The data were analyzed using PROC GLM of SAS and means were compared by Tukey test. Feeding sorghum grain, rehydrated corn silage or rehydrated sorghum silage did not affect the DMI and, consequently, did not affect significantly the final body weight (FBW). The FBW means of each treatment were 444.38, 434.69, 464.22, 443.44, and the DMI were 9.57, 9.23, 9.06, 9.19, respectively to corn grain (CG), sorghum grain (SG), rehydrated corn silage (RCS) and rehydrated sorghum silage (RSS) treatments. It was concluded that diets based on corn grain or sorghum grain, rehydrated or not, can support a similar performance of Nellore bulls finished in feedlot.

308 Effects of Roughage Source on Growth Performance, Carcass Characteristics, and Rumination Time of Beef Steers Fed Steam-flaked Corn Finishing Diets

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 168-168
Author(s):  
Wyatt N Smith ◽  
Catherine L Lockard ◽  
Caleb G Lockard ◽  
Megan Homolka ◽  
Kendall Karr ◽  
...  
Keyword(s):  
Growth Performance ◽  
Average Daily Gain ◽  
Neutral Detergent Fiber ◽  
Beef Steers ◽  
Final Body Weight ◽  
Finishing Diets ◽  
Randomized Design ◽  
Penn State ◽  
Dietary Treatments ◽  
Particle Separator

Abstract We hypothesized that roughage source would not impact rumination time and growth performance if the different sources provided a similar concentration of dietary neutral detergent fiber (NDF) and physically effective NDF (peNDF). This experiment’s objective was to evaluate rumination time, and growth performance steers consuming finishing diets with differing roughage sources (corn stalks, cotton burrs, or wheat silage). Beef steers (n = 49; BW = 317 + 5.6 kg) were used in a completely randomized design with 3 dietary treatments. Steers consumed a steam-flaked corn-based diet containing corn stalks (CS), cotton burrs (CB), or wheat silage (WS) included at 7% (DM basis). Dietary NDF was similar (P = 0.36) across treatments. Each steer was fitted with a sensory collar to record daily rumination. Weekly ingredient and dietary samples were estimated for physically effective NDF (epeNDF) using the Penn State Particle Separator. Actual physically effective NDF (apeNDF) was calculated based upon rumination time. Neither initial nor final body weight (BW) differed between treatments (P > 0.52); nor did average daily gain (ADG), dry matter intake or carcass adjusted variables of FBW, ADG, empty BW, or empty body fat (P > 0.31). However, gain to feed (G:F) tended to differ (P = 0.06) between treatments. The CS diet had the greatest G:F with no difference (P = 0.75) between CB and WS. Dietary NDF and epeNDF were similar (P > 0.35) among roughage sources; however, CB had the least apeNDF, consistent with lower rumination time (P < 0.01). When energy values were calculated from animal performance, the CS diet had the greatest observed energy values, followed by WS and CB having the least. These results indicate roughage source impacted rumination time, although steers were fed a steam-flaked corn-based finishing diet with similar dietary roughage and NDF inclusions.

scholarly journals Evaluation of batch fraction, corn silage inclusion level, and mixing duration on long particle distribution of finishing diets for beef cattle

F1000Research ◽  
2020 ◽  
Vol 9 ◽  
pp. 1085
Author(s):  
Elizabeth M. Buckhaus ◽  
Dathan T. Smerchek ◽  
Zachary K. Smith
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Dry Matter ◽  
Energy Content ◽  
Corn Silage ◽  
Net Energy ◽  
Randomized Design ◽  
Particle Retention ◽  
Inclusion Level

Background:  Differing fractions of a batch of feed, differing ingredient characteristics, and inadequate mix time can lead to non-uniformity within a mix of feed.  Methods: The experiment was designed as a 5 x 2 x 2 factorial arrangement with seven replications per simple treatment mean. Factors included: 1) batch fraction (BF; n = 5); 2) corn silage inclusion level (CSLVL; n = 2) 15% or 30% inclusion (dry matter basis); and 3) mixing duration (DR; n = 2) of 20 or 25 mixer revolutions. Data were analyzed as a completely randomized design using a binomial approach. The Penn State Particle Separator was used to separate fractions of the total mixed ration (TMR). Results: No interactions between BF, CSLVL, and DR were detected (P ≥ 0.31) for any dependent variables. There was an increase (P = 0.01) in retention on the 19 mm sieve from the first BF compared to the last BF. CSLVL altered (P = 0.01) retention on the 19 mm sieve. Increasing DR from 20 to 25 revolutions had no appreciable influence (P = 0.23) on particles greater than 19 mm.  CSLVL (P = 0.01) and DR (P = 0.01) altered particle retention on the 8 mm sieve. BF (P = 0.01), CSLVL (P = 0.01), and DR (P = 0.02), influenced particle retention on the 4 mm sieve. CSLVL impacted (P ≤ 0.01) particles remaining in the bottom pan and particles greater than 4 mm. BF (P = 0.01) and CSLVL (P = 0.01) altered particles greater than 8 mm. Conclusions: These data indicate that BF and CSLVL fed alters particle size distribution that in turn could alter dry matter intake, dietary net energy content, and influence daily gain. Mixing DR had no appreciable influence on particle size distribution of the TMR.

scholarly journals Consumption and ingestive behaviour of lambs fed varying levels of babassu mesocarp bran

2020 ◽  
pp. 2335-2348
Author(s):  
Carolina Moreira Araújo ◽  
Karla Alves Oliveira ◽  
Gilberto de Lima Macedo Junior ◽  
Jhone Tallison Lira de Sousa ◽  
Luciano Fernandes Sousa
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Dry Matter Intake ◽  
Fibre Intake ◽  
Randomized Design ◽  
Penn State ◽  
Acid Detergent Fibre ◽  
Completely Randomized Design ◽  
Particle Separator ◽  
Ingestive Behaviour

Voluntary consumption (VolC) and ingestive behaviour (IB) of lambs fed diets containing different percentages (0.0; 7.5; 15.0 and 22.5%) of babassu mesocarp bran (I-BMB) were evaluated. The trial was at the Federal University of Tocantins, Campus de Araguaína-TO. Twenty lambs were evaluated using a completely randomized design, and five replications were performed. VolC data was obtained by measuring total volumes of both food supplied and food remaining after feeding. IB was evaluated throughout two, non-consecutive 24-h periods, with observations were recorded every five minutes that described the following behavioural variables: resting (REST), rumination (RUM), intake (INT) and chewing (CHEW). The particle size was also measured using a Penn State particle separator. All VolC parameters (dry matter intake, DMI; crude protein intake, CPI; neutral detergent fibre intake, NDFI; and acid detergent fibre intake, ADFI) increased linearly with I-BMB intake. I-BMB consumption did not interfere with water intake, nor did it affect I-BMB did not affect the duration of DMI, NDFI and ADFI. However, linear increases of rumination and chewing activities associated with DMI, NDFI and ADFI were observed as I-BMB levels increased. In summary, effects of inclusion I-BMB in diets of lambs included increased voluntary consumption, and reduced rumination and chewing, but not ingestion, efficiency. When economically favorable, these data suggest that inclusion of up to 22.5% I-BMB within balanced diets should be applied.

scholarly journals CORN WITH DIFFERENT PARTICLE SIZES IN LAYING HENS FEEDING: PERFORMANCE, EGG QUALITY AND INTESTINAL MORPHOLOGY

2020 ◽  
Vol 23 (1cont) ◽  
Author(s):  
Elis Regina de Moraes Garcia ◽  
Flavia Kleszcz da Cruz ◽  
Diovani Paiano ◽  
Jovanir Inês Muller Fernandes ◽  
Luciana Kazue Otutumi ◽  
...  
Keyword(s):  
Particle Size ◽  
Laying Hens ◽  
Egg Quality ◽  
Intestinal Morphology ◽  
Feed Consumption ◽  
Experimental Unit ◽  
Egg Mass ◽  
Randomized Design ◽  
Morphometry Analysis ◽  
Intestinal Morphometry

This work was carried out to evaluate the effect of different particle size corn on the performance, egg quality and intestinal morphology of Hisex Brown laying hens. A total of 128 birds were used, in a completely randomized design with four treatments, four replicates and eight birds per experimental unit. Experimental rations had corn with different particle size: 565, 620, 781 and 1085 μm of mean geometric diameter (MGD). Feeding was ad libitum at 8:00 am and 4:00 p.m. The variables analyzed were: feed consumption, laying percentage, egg mass and weight, food conversion (was calculated by dividing the feed consumed by the total egg weight (kg.kg-1) and the number of eggs produced (kg.dozen-1)), shell percentage and thickness, Haugh unit, yolk color index and morphometry analysis of the intestinal mucosa. The use of corn with MGD until to 1085 μm in rations does not affect the performance and eggs quality of Hisex Bronw laying hens. However, there are indications that the intestinal morphometry of laying hens is negatively influenced by the increase in particle size of corn.

scholarly journals 248 Evaluation of RUP Content of NexPro Dried Distillers Grains plus Solubles in Corn Silage Based Growing Calf Diets

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 137-137
Author(s):  
Aksel Wiseman ◽  
Zachary Carslon ◽  
Levi McPhillips ◽  
Scott Tilton ◽  
Andrea K Watson ◽  
...  
Keyword(s):  
Soybean Meal ◽  
Corn Silage ◽  
High Protein ◽  
Distillers Grains ◽  
Experimental Unit ◽  
Dried Distillers Grains ◽  
Randomized Design ◽  
Test Protein ◽  
Gate System ◽  
And Performance

Abstract An 85 d growing study was conducted to evaluate the effect of supplementing NexPro, a high-protein dried distillers grains plus solubles from the FluidQuip MSC post-fermentation separation process, in a corn-silage based diet and to determine the RUP content of NexPro and performance of growing cattle fed this feedstuff. Crossbred steers (n = 120, initial BW = 250 ± 24kg) were individually fed using the Calan gate system and assigned randomly to treatment. Treatments were arranged as a 3×4 + 1 factorial with test protein type (Soybean meal [SBM]; non-enzymatically browned soybean meal [SoyPass]; high-protein DDGS [NexPro]) and supplemental protein concentration (4.5, 9.0, 13.5, or 18.0% diet DM) as factors. Crude protein content of NexPro, SoyPass and SBM were 51.4, 48.8, and 52.4%, respectively. All treatments were compared to a control with 0.0% inclusion of test protein and a corn-based, urea-containing RDP supplement. Diets contained 80% corn silage with test protein replacing RDP supplement as inclusion increased. Data were analyzed using the GLIMMIX procedure as a completely randomized design with individual animal as experimental unit. By design, RUP intake increased linearly (P < 0.01) across all treatments. Ending BW responded linearly (P < 0.01) for all treatments. Steers fed SoyPass or NexPro had no change (P > 0.18) in DMI, while SBM had a tendency for a quadratic increase (P = 0.07). Gains increased linearly (P < 0.01) for SoyPass and increased quadratically (P = 0.01) for SBM and NexPro. This resulted in linear increases (P < 0.01) in feed efficiency with increasing inclusions of test proteins. In situ mobile bag technique was used to determine RUP content of the supplemental proteins. The RUP content as a % of CP for NexPro, SoyPass and SBM were 50, 74, and 22%, respectively. Feeding DDGS from the FluidQuip process improved calf performance by increasing DMI, ADG, and efficiency in growing diets.

scholarly journals Particle Size Influences Preferential Consumption of Hay and Baleage in Total Mixed Dairy Rations

2008 ◽  
Vol 42 (2008) ◽  
pp. 45-49
Author(s):  
Yedilaklil Hunde ◽  
Jamie Patton ◽  
Dennis Padgitt ◽  
David Vlieger
Keyword(s):  
Particle Size ◽  
Milk Fat ◽  
State University ◽  
Fiber Concentration ◽  
Lactating Cows ◽  
Balanced Diet ◽  
Alfalfa Hay ◽  
Penn State ◽  
Nutritional Needs ◽  
Particle Separator

Lactating cows require complete balanced rations to meet their high nutritional requirements and to maximize milk and milk fat production. Total mixed rations (TMR) were developed to meet these nutritional needs by thoroughly mixing necessary feedstuffs into a single ration; hence providing a balanced diet in each bite. However, the actual nutrient and fiber concentration consumed by cows can dramatically differ from that of the ration due to selective feeding. The objectives of this study were to 1) evaluate the palatability of alfalfa hay TMR and alfalfa baleage TMR and 2) determine the effect of TMR fiber sources on the preferential sorting of rations. Sixty-four lactating dairy cows at the R.T. Wright University Farm at Northwest Missouri State University, Maryville, Missouri, were fed TMR containing either 35 percent alfalfa baleage or 35 percent alfalfa hay. Fresh TMR was weighed and distributed evenly within the feed bunk every 24 hours and orts (unconsumed feedstuffs) were collected and weighed to determine the amount of feed consumed. Feed samples from the bulk ration and arts mixture were collected for analysis of particle size distribution via a Penn State Particle Separator. Results indicate the cows clearly preferred shorter (< 0.79 cm) feed particles in both the baleage TMR and hay TMR. In addition, the cows preferred and consumed more alfalfa baleage TMR than alfalfa hay TMR. No relationships between moisture content and TMR preference were identified.

scholarly journals 314 How physically effective fiber affects ruminal pH in beef cattle fed high-concentrate diets

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 10-10
Author(s):  
Lourdes Llonch Fernández ◽  
Lorena Castillejos Velázquez ◽  
Alfred Ferret Quesada
Keyword(s):  
Particle Size ◽  
Dry Matter ◽  
Latin Square ◽  
Dry Matter Intake ◽  
Barley Straw ◽  
Hammer Mill ◽  
Ruminal Ph ◽  
Average Intake ◽  
Penn State ◽  
Particle Separator

Abstract To assess the effect of physically effective fiber (peNDF) on ruminal pH, 8 Simmental heifers with 258±5.7kg BW were randomly assigned to 1 of 4 treatments in a replicated 4x4 Latin square design. Diets were formulated with an 83 to 17 concentrate to straw ratio, and offered ad libitum as total mixed ration. Barley straw was chopped with a feeder wagon, and then processed either by: a) sifting with the 3-screen Penn State Particle Separator to obtain straw particle size greater than 4 mm, or b) grinding in a hammer mill through a 2-mm screen to obtain straw particle size lesser than 4 mm. Treatments after mixing the processed straws to obtain different peNDF proportions were: 5%, 7%, 9%, and 11%. Concentrate was ground through a 3-mm screen and manually mixed with the straw. The study was performed in 4 3-wk periods: 2-wk diet adaptation and 1-wk sampling. A ruminal bolus (smaXtec, Graz, Austria) was orally inserted in each heifer to measure ruminal pH every 10 min. Dry matter intake was individually measured. Data were analyzed using the mixed procedure of SAS. No significant effects were found in average and minimum pH (6.66 and 5.87 on average, respectively). Time under pH lesser than 5.8 was significantly longer (P < 0.01) in 5% (134 min/d) than 7%, 9% and 11% (63 min/d on average). Time under pH lesser than 5.6 tended to be longer (P = 0.074) in 5% (65 min/d), and shorter in 9% and 11% (25 min/d on average). Time under pH lesser than 5.5 was unaffected by treatment (23 min/d on average). Intake of DM was greater (P < 0.001) in 5% and 7% than 9% and 11%. These results suggest that the risk of subclinical acidosis decreases from 7 to 11% of peNDF, but DMI also decreases in 9% and 11%.

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