scholarly journals PSII-32 Effects of feeding 60% dried distillers grains plus solubles or the equivalent sulfur as calcium sulfate on hydrogen sulfide gas production in the rumen

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 216-217
Author(s):  
Cierrah J Kassetas ◽  
Bryan Neville ◽  
Joel Caton ◽  
Kacie L McCarthy ◽  
Kevin Sedivec ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Repeated Measures ◽  
Calcium Sulfate ◽  
Day Treatment ◽  
Gas Production ◽  
Distillers Grains ◽  
Dried Distillers Grains ◽  
Treatment Interaction ◽  
Beef Bulls ◽  
The Impact

Abstract Objective of this study was to evaluate the impact of feeding 60% dried distillers grains plus solubles (DDGS) or the equivalent sulfur from calcium sulfate (CaSO4) to yearling beef bulls on ruminal hydrogen sulfide (H2S). The hypothesis for this study was that bulls consuming elevated concentrations of sulfur in their diet will have an increase in H2S present in the rumen. Twenty-four crossbred beef bulls (10 months of age, BW=319.6 kg) were assigned one of three treatments 1) corn based diet containing 60% concentrate (CON, S=0.2%, n = 8); 2) diet containing 60% DDGS as a replacement for corn (DDGS, S=0.44% DM, n = 8); 3) CON diet+ equivalent sulfur of DDGS in diet added as CaSO4 (SULF, S=0.43%, n = 8). Bulls were individually fed in Calan gates at 2% of BW. Ruminal gas samples were taken via rumen puncture 4 to 6 hours post feeding on d0, 14 and 42. Concentrations of H2S were determined using hydrogen sulfide detector tubes which were connected to a volumetric gas pump (Gastec, Kanawaga, Japan). Data were analyzed as repeated measures using the MIXED procedures of SAS for effects of day, treatment, and a day × treatment interaction. A day × treatment interaction was present for ruminal H2S (P = 0.005). On d0, there was no effect of treatment (P = 0.97). Bulls fed DDGS or SULF had similar H2S concentration on d14 (P = 0.06), while animals fed CON had lower H2S concentration (P = 0.004). On d42, concentrations of H2S was greater in SULF than all other treatments (P£0.006), while DDGS was greater than CON (P£0.05). Elevated H2S in bulls fed the SULF treatment compared with the DDGS treatment may indicate that ruminal availability of sulfur (S) in CaSO4 was greater than that of the combination of sulfuric acid and S-containing amino acids present in DDGS.

scholarly journals 99 Effects of feeding 60% dried corn distillers grains plus solubles or the equivalent sulfur as calcium sulfate on trace mineral concentrations in serum and seminal plasma

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 80-81
Author(s):  
Cierrah J Kassetas ◽  
Joel Caton ◽  
James D Kirsch ◽  
Sheri T Dorsam ◽  
Kacie L McCarthy ◽  
...  
Keyword(s):  
Enzyme Activity ◽  
Plasma Treatment ◽  
Seminal Plasma ◽  
Repeated Measures ◽  
Calcium Sulfate ◽  
Distillers Grains ◽  
Trace Mineral ◽  
Corn Distillers ◽  
Mineral Concentrations ◽  
Half Sibling

Abstract Thirty-six half-sibling yearling Angus bulls [256 ± 8 d; initial BW = 320 ± 2 kg] were assigned one of three diets: 1) 60% concentrate as corn (CON; n = 12); 2) 60% DDGS (60DDGS; n = 12); 3) CON diet + equivalent sulfur of 60DDGS as CaSO4 (SULF; n = 12) to evaluate effects of feeding 60% DDGS or sulfur as CaSO4 on trace mineral (TM) concentrations in serum and seminal plasma. Bulls were fed in Calan gates for 112 days and targeted to gain 1.6 kg/d. Data were analyzed as repeated measures using PROC MIXED in SAS. In serum, treatment × day interactions were observed (P ≤ 0.03) for Cu, Se, and Mo. For Cu, no differences (P > 0.15) were observed at d 0 or 56, but at d 112, 60DDGS was reduced (P < 0.01) compared with SULF and CON. At d 0, no differences (P > 0.09) were observed for Se; however, at d 56 and 112, 60DDGS was greater (P < 0.01) than CON and SULF. For Mo, at d 0, 60DDGS was greater (P = 0.03) than CON, whereas SULF was intermediate, but at d 56 and 112, CON was greater (P < 0.01) than SULF and 60DDGS. In seminal plasma, treatment × day interactions were observed (P ≤ 0.02) for Cu and Mo. For Cu, no differences (P ≥ 0.09) were observed at d 0 or 56, but at d 112, CON and 60DDGS were greater (P < 0.01) compared with SULF. For Mo, at d 0, 60DDGS was greater (P = 0.03) than SULF, whereas CON was intermediate, but on d 56 and 112, CON was greater (P < 0.01) than 60DDGS and SULF. Differences observed for TM may have influenced enzyme activity and semen kinematics which were previously reported.

scholarly journals 224 Impact of bunk management strategy on animal performance, carcass characteristics, and hydrogen sulfide gas concentrations in steers fed modified distillers grains with solubles

2019 ◽  
Vol 97 (Supplement_2) ◽  
pp. 130-131
Author(s):  
Leslie Lekatz ◽  
Bryan Neville
Keyword(s):  
Hydrogen Sulfide ◽  
Carcass Characteristics ◽  
Distillers Grains ◽  
Beef Steers ◽  
Adaptation Period ◽  
Animal Performance ◽  
Entire Study ◽  
Distillers Grains With Solubles ◽  
Carcass Characteristic ◽  
Treatment Interaction

Abstract The objective of this study was to evaluate the impacts of bunk management on animal performance, carcass characteristic, and hydrogen sulfide gas concentrations in beef steers fed modified distillers grains with solubles (MDGS; DM basis). One hundred and thirty-nine steers (initial BW = 240 ± 5.17 kg) were allocated into 16 pens and assigned to one of two treatments: 1) Control-managed bunks: bunks devoid of feed prior to feeding; and 2) Long-managed bunks: bunks with approximately 2.54cm of feed remaining at the time feeding. Treatments were applied during a 28-d adaptation period, during which time, steers were adapted to a common finishing ration containing 25% MDGS (DM basis). Ruminal hydrogen sulfide gas was collected by rumenocentesis from two steers from each of three pens per treatment on d 0, 7, 14, and 28, which correspond to days of diet transition. Animal performance data were collected throughout the study and carcass characteristic data were collected when steers reached market weight. There were no differences (P < 0.13) in BW, ADG, or F:G between treatments during the adaptation period or throughout the entire study. Steers managed with long bunks had greater (P = 0.001) intake during adaptation; however, overall DMI was not different (P = 0.14) between treatments. Hydrogen sulfide gas concentrations were not affected by the day x treatment interaction (P = 0.30) but were affected by day (P = 0.003) with hydrogen sulfide concentrations increasing throughout adaptation. Hydrogen sulfide concentrations tended (P = 0.07) to be greater in steers with long-managed bunks vs. control-managed bunks. There were no differences (P > 0.53) in carcass characteristics. In summary, bunk management had no effect on performance or carcass characteristics and only tended to impact hydrogen sulfide gas concentrations.

scholarly journals PSI-32 Impact of titrating levels of dried distillers grains with solubles as a replacement of soybean meal on Boer goat fat quality

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 254-254
Author(s):  
Linnea Rimmer ◽  
Cassandra K Jones
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Distillers Grains ◽  
Fatty Acid Profiles ◽  
Boer Goat ◽  
Distillers Grains With Solubles ◽  
Dried Distillers Grains ◽  
Fat Quality ◽  
The Impact

Abstract Due to the rising goat population in the United States, there is growing economic incentive to feed dried distillers grains with solubles (DDGS) over soybean meal (SBM). However, there is limited knowledge of how this may affect carcass composition. Therefore, the objective of this experiment was to evaluate the impact of titrating levels of DDGS as a replacement of SBM on Boer goat fatty acid profiles. Thirty-two Boer goat kids were fed isocaloric and isonitrogenous diets consisting of 0%, 33%, 66%, and 100% DDGS replacing SBM. There were no detected differences (P &gt; 0.05) in final body weight after a 47-d growth experiment. Goats were slaughtered in a commercial, USDA-inspected facility, backfat samples collected between the 12th and 13th rib, and samples analyzed for fatty acid profile via AOAC Official Method 996.06. Data were analyzed with goat as the experimental unit in a completely randomized design. Dietary treatment did not impact (P &gt; 0.05) the overall fatty acid profile or iodine value (50 to 52 points) of fat samples. This may be because fatty acids go through biohydrogenation by rumen bacteria, limiting the impact of diet on fatty acid profile. That said, increasing levels of DDGS impacted (P = 0.03) both C16:1 and C18:3 in a quadratic manner. Specifically, goats fed 0% and 100% DDGS replacing SBM had higher C16:1 than those fed intermediate levels of DDGS, while the opposite was true for C18:3. No other fatty acid was affected (P &gt; 0.05), nor were there shifts in the ratio of saturated vs. unsaturated, or the total sum of n-3 fatty acids. In summary, fatty acid profiles are not significantly impacted by increasing levels of DDGS in place of SBM, and therefore DDGS can be used in Boer goat diets without impacting fat quality.

In vitro gas production including methane from bermudagrasses supplemented with dried distillers grains with solubles

2020 ◽  
Vol 36 (2) ◽  
pp. 172-182
Author(s):  
W.B. Smith ◽  
M.D. Miller ◽  
W.L. Crossland ◽  
T.R. Callaway ◽  
L.O. Tedeschi ◽  
...  
Keyword(s):  
Gas Production ◽  
Distillers Grains ◽  
Distillers Grains With Solubles ◽  
Dried Distillers Grains ◽  
In Vitro Gas Production

scholarly journals Effect of Dried Distillers Grains With Solubles and Red Osier Dogwood Extract on Fermentation Pattern and Microbial Profiles of a High-Grain Diet in an Artificial Rumen System

2021 ◽  
Vol 8 ◽  
Author(s):  
Walaa Mohamed Sayed Gomaa ◽  
Atef Mohamed Saleem ◽  
Tao Ran ◽  
Long Jin ◽  
Mohamed Samir ◽  
...  
Keyword(s):  
Microbial Community ◽  
Diversity Index ◽  
Basal Diet ◽  
Barley Grain ◽  
Gas Production ◽  
Neutral Detergent Fiber ◽  
Distillers Grains ◽  
Distillers Grains With Solubles ◽  
Dried Distillers Grains ◽  
Fermentation Pattern

The objective of this study was to evaluate the effect of dried distillers grains with solubles (DDGS) and red-osier dogwood (ROD) extract on in vitro fermentation characteristics, nutrient disappearance, and microbial profiles using the rumen simulation technique. The experiment was a completely randomized design with a 2 × 2 factorial arrangement of treatments and four replicates per treatment. A basal diet [10% barley silage, 87% dry-rolled barley grain, and 3% vitamin and mineral supplement, dry matter (DM) basis] and a DDGS diet (as per basal diet with 25% of wheat DDGS replacing an equal portion of barley grain) were supplemented with ROD extract at 0 and 1% (DM basis), respectively. The experimental period was 17 d, consisting 10 days of adaptation and 7 days of data and sample collection. The substitution of wheat DDGS for barley grain did not affect gas production; disappearances of DM, organic matter, and crude protein; total volatile fatty acid (VFA) production; and microbial protein production. However, replacing barley grain with wheat DDGS increased (P = 0.01) fermenter pH and molar proportion of branched-chain VFA, switched (P = 0.06) the fermentation pattern to higher acetate production due to increased (P = 0.01) disappearance of neutral detergent fiber (NDF), and decreased (P = 0.08) methane (CH4) production. In the basal barley diet, the ROD extract increased the acetate to propionate (A:P) ratio (P = 0.08) and reduced the disappearance of starch (P = 0.06) with no effect on any other variables. No effects of ROD in the DDGS diet were observed. The number of operational taxonomic unit (OTUs) and the Shannon diversity index of the microbial community had little variation among treatments. Taxonomic analysis revealed no effect of adding the ROD extract on the relative abundance of bacteria at the phylum level with either the basal diet or DDGS diet, while at the genus level, the microbial community was affected by the addition of both DDGS and the ROD extract. Prevotella and Fibrobacter were the most abundant genera in the basal diet; however, Treponema became the most abundant genus with the addition of the ROD extract. These results indicated that the substitution of wheat DDGS for barley grain may mitigate enteric CH4 emissions. The trend of reduced starch fermentability and increased NDF disappearance with the addition of ROD extract suggests a reduced risk of rumen acidosis and an improvement in the utilization of fiber for cattle-fed high-grain diet.

166 Air emissions from swine industrial livestock operations and sleep among residents in nearby residential communities

SLEEP ◽  
2021 ◽  
Vol 44 (Supplement_2) ◽  
pp. A68-A68
Author(s):  
Chandra Jackson ◽  
Nathaniel MacNell ◽  
Christopher Heaney
Keyword(s):  
Hydrogen Sulfide ◽  
Confidence Interval ◽  
Sleep Duration ◽  
Repeated Measures ◽  
Fixed Effects ◽  
Atmospheric Concentration ◽  
Life Study ◽  
Repeated Measures Design ◽  
Residential Communities ◽  
The Impact

Abstract Introduction Waste from swine industrial livestock operations (ILOs) produces air pollutants that have been associated with negative health outcomes among nearby residents. Methods Using a repeated-measures design, we assessed the impact of odor emissions on sleep duration and awakenings, important components and determinants of health and quality-of-life. Study participants from 16 residential communities in eastern North Carolina hosting swine ILOs, from 2003 to 2005, completed twice-daily diaries in which they rated the strength of hog odors and indicated whether they were asleep or awake per hour for two weeks. Simultaneously, a monitoring trailer placed in a central location in each community measured the atmospheric concentration of hydrogen sulfide (H2S). Subject-conditional fixed-effects regression models were used to estimate associations between two markers of swine ILO pollutant exposures (H2S and swine odor) and two self-reported sleep outcomes (nightly sleep duration and awakening from sleep). Results Among 80 participants, nightly (across a 12-hour period) swine odor was associated with lower-nightly sleep duration (mean difference = -14.3 minutes, 95% confidence interval -25.0 to -3.3 minutes) compared to odor-free nights and detection of nightly hydrogen sulfide was associated with a 23% increased hazard of awakening (Hazard ratio = 1.23, 95% confidence interval 0.98 to 1.55) compared to nights with no detection of hydrogen sulfide. Conclusion These results suggest that emissions reductions and odor abatement are important public health goals in designing policy and technology solutions to the problems of livestock production and waste management. Support (if any) This work was funded, in part, by the Intramural Program at the NIH, National Institute of Environmental Health Sciences (Z1AES103325-01).

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