Evaluation of sorghum dried distillers’ grains plus solubles as a replacement of a portion of sorghum grain and soybean meal in growing diets for steers

2021 ◽  
pp. 104564
Author(s):  
Stefanía Pancini ◽  
Álvaro Simeone ◽  
Oscar Bentancur ◽  
Virginia Beretta
Keyword(s):  
Soybean Meal ◽  
Distillers Grains ◽  
Dried Distillers Grains ◽  
Sorghum Grain

scholarly journals 169 Increasing levels of sorghum dried distillers grains with solubles in feedlot diets: effects on nutrient digestibility, ruminal degradability and fermentation

2019 ◽  
Vol 97 (Supplement_1) ◽  
pp. 61-61 ◽  
Author(s):  
Stefania Pancini ◽  
Alvaro Simeone ◽  
Oscar Bentancur ◽  
Vitor R G Mercadante ◽  
Virginia Beretta
Keyword(s):  
Soybean Meal ◽  
Latin Square ◽  
Nutrient Digestibility ◽  
Distillers Grains ◽  
Apparent Digestibility ◽  
Distillers Grains With Solubles ◽  
Dried Distillers Grains ◽  
Ruminal Ph ◽  
Ruminal Degradability ◽  
Sorghum Grain

Abstract The objective of this study was to determine the effect of increasing levels of sorghum dry distillers grains with solubles (DDGS) in high concentrate feedlot diets in the nutrient digestibility (%), ruminal degradability (%), pH, NH4 (µg N-NH4/ml) and volatile fatty acid (VFA, mM/l) concentration. Four ruminally cannulated steers (450 ± 63 kg) were used in a 4x4 Latin square design, evaluating four treatments in four periods of 19 days each, with 14 days of adaptation and 5 days of measurements. Animals received a TMR, 92% concentrate (63% sorghum grain, 25% soybean meal, 4% mineral commercial premix), with DDGS (90% DM, 29% CP, 51% NDF, 9% EE) in increasing levels generating 4 treatments: 0, 15, 30, or 45%. Replacing a combination of sorghum grain and soybean meal to maintain diets isoproteic. The TMR was offered ad-libitum to each animal in individual pens. Greater levels of DDGS increased the consumption of NDF (P = 0.0001) and EE (P = 0.0004), and NDF total tract apparent digestibility (linear; P = 0.038), but it decreased quadratically EE total tract apparent digestibility (P = 0.017). The DM (84.2 ± 0.17) and the CP total tract apparent digestibility (85.3 ± 2.0) was not affected by increasing levels of DDGS. Nevertheless, the ruminal degradability of total DM (P = 0.01) and CP decreased linearly (P = 0.01), without affecting NDF degradability (65.6 ± 4.3). Increasing levels of DDGS did not change ruminal pH (5.6 ± 0.14), acetate (45.1 ± 6.3), propionate (24.8 ± 3.6), and butyrate (5.2 ± 0.7) concentration, but NH4 concentration decreased linearly (P < 0.0001) directly related to the decreased CP ruminal degradability. Increasing levels of DDGS inclusion in a high concentrate diet reduce the CP ruminal degradability, without changes in total CP digestibility, what indicates a change of the site of digestion.

scholarly journals 275 Replacing cottonseed meal and sorghum grain with corn dried distillers grains with solubles in lamb feedlot diets: carcass characteristics and sensory panel traits

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 104-105
Author(s):  
Kade M Hodges ◽  
Chris R Kerth ◽  
Travis R Whitney ◽  
Wesley S Ramsey ◽  
Kayley R Wall ◽  
...  
Keyword(s):  
Cottonseed Meal ◽  
Skeletal Maturity ◽  
Control Diet ◽  
Distillers Grains ◽  
Sensory Characteristics ◽  
Sensory Panel ◽  
Distillers Grains With Solubles ◽  
Dried Distillers Grains ◽  
Ribeye Area ◽  
Sorghum Grain

Abstract Carcass and sensory panel traits were evaluated in Dorper ram lambs (n = 46) fed feedlot diets where cottonseed meal (CSM) and sorghum grain were replaced with dried distillers grains with solubles (DDGS). In a randomized design study, lambs were individually fed ad libitum 70.9% concentrate diets for 61 d in individual pens. The positive control diet (CNTL) contained CSM, sorghum grain, and other concentrates, but no DDGS. Four treatment diets were similar to CNTL, but did not contain CSM. Corn DDGS replaced 0% (0DDGS), 33% (33DDGS), 66% (66DDGS) or 100% (100DDGS) of the sorghum grain in the treatment diets. Lambs fed CNTL were contrasted to those fed 0DDGS and linear and quadratic effects were evaluated within the four treatment diets. At 48-h postmortem, the longissimus thoracis was removed from the carcass, frozen, thawed, cooked, and evaluated by a trained sensory panel. Lambs fed CNTL had greater (P ≤ 0.03) hot carcass weight (HCW) and ribeye area (REA) than lambs fed 0DDGS. As DDGS incrementally replaced sorghum grain, HCW and flank fat quadratically increased (P ≤ .05), marbling linearly decreased (P = 0.03), ribeye area tended to linearly increase (P = 0.06), and skeletal maturity tended to linearly decrease (P = 0.06). No differences in sensory characteristics were observed (P ≥ 0.06) between lambs fed CNTL or 0DDGS. As DDGS incrementally replaced sorghum grain, juiciness linearly increased (P = 0.03), cook loss quadratically increased (P = 0.05), lamb flavor identity tended to quadratically increase (P = 0.09) and certain flavor attributes quadratically increased (brown, roasted, umami; P ≤ 0.03), quadratically decreased (metallic; P = 0.004), or linearly increased (bloody; P = 0.003). Results indicated that carcass and sensory characteristics are not negatively affected (some are enhanced) when DDGS replaces CSM and sorghum grain in Dorper lamb feedlot diets.

Effect of dried distillers’ grains and solubles when replacing corn or soybean meal on rumen microbial growth in vitro as measured using DNA as a microbial marker

2014 ◽  
Vol 94 (2) ◽  
pp. 349-356 ◽  
Author(s):  
E. Castillo-Lopez ◽  
T. J. Klopfenstein ◽  
S. C. Fernando ◽  
P. J. Kononoff
Keyword(s):  
Soybean Meal ◽  
Crude Protein ◽  
Microbial Growth ◽  
Treatment Time ◽  
Distillers Grains ◽  
Yeast Cells ◽  
Fermentation Time ◽  
Dried Distillers Grains ◽  
Time Interaction

Castillo-Lopez, E., Klopfenstein, T. J., Fernando, S. C. and Kononoff, P. J. 2014. Effect of dried distillers’ grains and solubles when replacing corn or soybean meal on rumen microbial growth in vitro as measured using DNA as a microbial marker. Can. J. Anim. Sci. 94: 349–356. The objectives were to evaluate the use of rDNA markers to measure the effects of dried distillers’ grains with solubles (DDGS) and the potential treatment×time interaction on microbial crude protein (MCP) synthesis in vitro and secondly to measure the contribution of yeast based protein originating from DDGS. Treatments were: (1) CONT, control with no DDGS, but with alfalfa hay, corn silage, ground corn (GC) and soybean meal (SBM) included at 25% (DM basis); (2) LOWCORN, 20% DDGS (DM basis) replacing GC; (3) LOWSBM, 20% DDGS (DM basis) replacing SBM; and (4) LOWCORNSBM, 20% DDGS (DM basis) replacing 10% GC and 10% SBM. Treatments (0.5 g) were incubated in 50 mL of inoculum in duplicate. At 0, 4, 16, 32, 48 and 96 h of fermentation total DNA was extracted from each treatment and MCP was measured using rDNA markers. The sum of bacterial crude protein (BCP) and protozoal crude protein (PCP) was considered as MCP. Data were analyzed as a completely randomized design. The treatment×time interaction was tested and the SLICE option was included to evaluate the effect of treatment at each fermentation time point. There was a tendency to a treatment×time interaction (P=0.07) for MCP. Specifically, at 16 h, LOWCORNSBM yielded greater (P<0.05) MCP compared to either CONT or LOWCORN with estimates of 68.5, 33.8 and 23.3±8.9 mg g–1DM, for LOWCORNSBM, CONT and LOWCORN, respectively. At 48 h, however, LOWCORN yielded greater MCP (P<0.05) compared with LOWSBM with estimates of 72.2 and 32.5±8.9 mg g–1DM, for LOWCORN and LOWSBM, respectively. Yeast crude protein (YCP) was not affected (P=0.21) and averaged 0.04±0.02 mg g–1of substrate (DM basis). Overall, rDNA markers were effective for quantifying MCP, but further research on the methodology is needed. With DDGS inclusion, MCP was maintained; however, yeast cells were extensively degraded during fermentation.

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