scholarly journals Effect of feeding condensed tannins in high protein finishing diets containing corn distillers grains on ruminal fermentation, nutrient digestibility, and route of nitrogen excretion in beef cattle1

2018 ◽  
Vol 96 (10) ◽  
pp. 4398-4413 ◽  
Author(s):  
Karen M Koenig ◽  
Karen A Beauchemin
Keyword(s):  
Condensed Tannins ◽  
Nutrient Digestibility ◽  
High Protein ◽  
Distillers Grains ◽  
Nitrogen Excretion ◽  
Ruminal Fermentation ◽  
Finishing Diets ◽  
Corn Distillers ◽  
Effect Of Feeding

scholarly journals PSIV-22 The effects of altering ruminal fermentable carbohydrate supply in finishing diets containing distillers grains on rumen fermentation characteristics and nitrogen utilization

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 220-220
Author(s):  
Cody Ream ◽  
Allison V Stevens ◽  
Gwinyai Chibisa
Keyword(s):  
Dry Matter ◽  
Latin Square ◽  
Ammonia Concentration ◽  
Distillers Grains ◽  
Ruminal Fermentation ◽  
Carbohydrate Source ◽  
Finishing Cattle ◽  
Finishing Diets ◽  
Ruminal Ph ◽  
Total Urine

Abstract This study examined the effects of altering ruminal fermentable carbohydrate (RFC) supply by feeding different amounts of corn and wheat in finishing cattle diets containing 15% corn dried distillers grains [DDGS; dry matter (DM) basis] on ruminal fermentation characteristics and nitrogen (N) utilization. Six ruminally-cannulated crossbred heifers were used in a replicated 3 × 3 Latin square design with 28 d periods. Dietary treatments were either corn (73% of diet DM; CON), 53:20 corn:wheat blend (20W) or 33:40 corn:wheat blend (40W) as the major fermentable carbohydrate source. Diets were isonitrogenous (12% CP; DM basis). Feed intake was measured daily. Indwelling pH logger were used to measure ruminal pH (d 22 to 28) and ruminal fluid was collected from d 26 to 28 to determine fermentation characteristics, as were feces and urine to measure N excretion. Data was analyzed using PROC MIXED in SAS. Dry matter and N intake tended to be lower (P ≤ 0.07) for heifers fed the 40W compared to the CON and 20W diets. There was no diet effect (P = 0.15) on total VFA concentration; however, the duration and area for pH < 5.5 tended to be longer (P = 0.07) and greater (P = 0.096), respectively, for heifers fed the 20W and 40W compared to the CON diet. There was no diet effect (P ≥ 0.44) on ruminal ammonia concentration and total urine N excretion (g and % of N intake). However, urine urea N (UUN) excretion as a percentage of total urine N tended to be lower (P = 0.05) in heifers fed the 20W and 40W compared to the CON diet. In summary, although altering RFC supply by feeding increasing amounts of wheat resulted in a decrease in UUN excretion, it also caused a decrease in ruminal pH that possibly compromised DM intake.

The effect of lactose inclusion in finishing diets on nutrient digestibility, nitrogen excretion, lactobacilli concentrations and ammonia emissions from boars

2005 ◽  
Vol 2005 ◽  
pp. 86-86
Author(s):  
K. M. Pierce ◽  
T. Sweeney ◽  
J. J. Callan ◽  
C. Byrne ◽  
P. McCarthy ◽  
...  
Keyword(s):  
Nutrient Digestibility ◽  
Nitrogen Excretion ◽  
Ammonia Emissions ◽  
Pig Production ◽  
Finishing Diets ◽  
Finishing Pig

There is growing interest in the manipulation of dietary ingredients a means of reducing nitrogen excretion (NE) and ammonia (NH3) losses from pig production. Significant quantities of lactose may reach the hindgut of the older pig undigested, yielding a substrate for bacteria (Kim et al., 1978). It is hypothesised that increasing concentrations of lactose in finishing pig diets will alter NE patterns and reduce NH3-N emission.

scholarly journals 223 Effects of high protein DDGS in SFC or DRC-based diets on nutrient digestibility and ruminal fermentation characteristics

2019 ◽  
Vol 97 (Supplement_2) ◽  
pp. 128-128
Author(s):  
Lauren Ovinge ◽  
Mitch Norman ◽  
Kaylee Wheeler ◽  
Galen E Erickson
Keyword(s):  
Latin Square ◽  
Ammonia Concentration ◽  
Nutrient Digestibility ◽  
High Protein ◽  
Starch Digestibility ◽  
Experimental Unit ◽  
Ruminal Fermentation ◽  
Dried Distillers Grains ◽  
Ruminal Ph ◽  
Treatment Design

Abstract The effect of high protein dried distillers grains plus solubles in steam flaked corn (SFC) or dry rolled corn (DRC)-based diets on rumen fermentation and nutrient digestion was evaluated. Six ruminally and duodenally cannulated heifers were utilized in a 6×6 Latin Square experiment using a 2×3 factorial treatment design. One factor was SFC or DRC-based diets, and the other factor was a control with no DGS (CON), regularly produced DDGS (DDGS), or High Protein DDGS (HiPro) included at 30% in the diet (DM basis). Data were analyzed using the MIXED procedure of SAS, with individual steer within period as the experimental unit. There was an interaction of apparent total tract starch digestibility (P 0.01), as including either DDGS or HiPro reduced starch digestibility in DRC-based diets and tended (P = 0.06) to reduce starch digestibility in SFC-based diets. Digestibility of starch was greater (P < 0.01) for SFC versus DRC-based diets across distillers treatments. Dry matter and OM apparent total tract digestibility was lowest (P < 0.01) for HiPro and DDGS was intermediate. There was no difference in molar acetate proportions (P > 0.43) between treatments. Dry rolled corn tended (P = 0.08) to have greater propionate proportion than SFC (44 vs 38%; respectively). Ammonia concentration was greater (P < 0.01) for DRC-based diets, and greatest for CON (P < 0.01) over DDGS and HiPro treatments. Average ruminal pH was unaffected by treatment (P > 0.16). Digestible energy (Mcal/kg) tended (P = 0.08) to be greater for CON over HiPro and DDGS. The use of HiPro did not affect apparent total tract nutrient digestibility as compared to DDGS in SFC or DRC-based diets. The use of either distillers product did result in a reduction in energy intake and digestibility, without affecting ruminal metabolic parameters.

Effect of grain type and dried distillers grains plus solubles oil concentration on site of digestion in cattle fed finishing diets

2018 ◽  
Vol 98 (2) ◽  
pp. 368-375 ◽  
Author(s):  
Mary A. Rodenhuis ◽  
Faithe E. Keomanivong ◽  
Marc L. Bauer ◽  
Kendall C. Swanson
Keyword(s):  
Crude Protein ◽  
Distillers Grains ◽  
Starch Digestibility ◽  
Ether Extract ◽  
Finishing Diets ◽  
Dried Distillers Grains ◽  
Oil Concentration ◽  
Corn Distillers ◽  
Feeding Diets ◽  
Lipid Digestibility

The objective of this experiment was to determine the effects of grain type (rolled corn vs. rolled barley) and oil concentration of dried corn distillers grains plus solubles (DDGS; moderate = 7.9% vs. low = 4.5% ether extract) on site of digestion. Seven ruminally and duodenally cannulated Holstein steers (716 ± 8.9 kg) were used in a 4 × 7 Youden square with experimental periods of 24 d. True ruminal organic matter (OM) and crude protein (CP) digestibility (% of intake) as well as intestinal (% of entering duodenum) and total tract starch digestibility was greater (P ≤ 0.03) in steers fed diets containing barley than in steers fed diets containing corn. Ruminal disappearance and ruminal, intestinal, and total tract OM, CP, and starch digestibility were not influenced (P ≥ 0.11) by feeding diets containing DDGS with differing oil concentration. Total tract lipid digestibility (%) was greater (P < 0.001) in steers fed diets containing moderate-oil DDGS than low-oil DDGS. These data indicate that including a low-oil DDGS, as compared with a moderate-oil DDGS, in finishing diets containing rolled corn or rolled barley does not influence intake or site of digestion of nonlipid components.

339 Effect of feeding brown midrib corn silage in growing diets for beef cattle on nutrient digestibility and ruminal fermentation characteristics

2017 ◽  
Vol 95 (suppl_2) ◽  
pp. 165-165
Author(s):  
F. H. Hilscher ◽  
M. J. Jolly-Briethaupt ◽  
J. L. Gramkow ◽  
M. M. Norman ◽  
J. N. Anderson ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Nutrient Digestibility ◽  
Corn Silage ◽  
Brown Midrib ◽  
Ruminal Fermentation ◽  
Effect Of Feeding

scholarly journals Effects of Black Wattle (Acacia mearnsii) Condensed Tannins on Intake, Protozoa Population, Ruminal Fermentation, and Nutrient Digestibility in Jersey Steers

Animals ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1011 ◽  
Author(s):  
Andre S. Avila ◽  
Maximiliane A. Zambom ◽  
Andressa Faccenda ◽  
Maria L. Fischer ◽  
Fernando A. Anschau ◽  
...  
Keyword(s):  
Organic Matter ◽  
Condensed Tannins ◽  
Crude Protein ◽  
Dry Matter ◽  
Nutrient Utilization ◽  
Nutrient Digestibility ◽  
Neutral Detergent Fiber ◽  
Ruminal Fermentation ◽  
Acacia Mearnsii ◽  
Black Wattle

The objective of this study was to evaluate the effect of inclusion of condensed tannins (CT) from black wattle (Acacia mearnsii) on feed intake, ruminal protozoa population, ruminal fermentation, and nutrient digestibility in Jersey steers. Five ruminally-cannulated steers were used in a 5 × 5 Latin square design, with five periods of 20 days each (14 days for diet adaptation and six days for sample collection per period). Treatments were composed of dietary inclusion levels of condensed tannins at 0, 5, 10, 15, and 20 g/kg of diet dry matter. Intakes of dry matter, organic matter, ether extract, crude protein, neutral detergent fiber, and total digestible nutrients were not affected by condensed tannins. The ruminal pH was reduced linearly with tannin levels. Ruminal ammonia nitrogen concentration was not affected by tannins. Tannins reduced the molar proportion of acetate and did not affect the ruminal protozoal population, which might be related to the low doses used. Digestibilities of dry matter, organic matter, and neutral detergent fiber were not altered; however, there was a linear reduction in crude protein digestibility. Based on these results, CT extracts from black wattle are not recommended for improving nutrient utilization in steers at the tested levels.

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