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Full-Text Articles in Animal Sciences
Evaluation Of The Effects Of Pine-Sourced Biochar On Cattle Performance And Methane And Carbon Dioxide Production From Growing And Finishing Steers, J. L. Sperber, B. C. Troyer, Galen E. Erickson, Andrea K. Watson
Evaluation Of The Effects Of Pine-Sourced Biochar On Cattle Performance And Methane And Carbon Dioxide Production From Growing And Finishing Steers, J. L. Sperber, B. C. Troyer, Galen E. Erickson, Andrea K. Watson
Department of Animal Science: Faculty Publications
A feedlot growing (77-d) and finishing (111-d) experiment was conducted to evaluate the effects of feeding biochar on steer performance, methane and carbon dioxide emissions, and carcass characteristics. Two treatments were evaluated, a control diet without biochar and the same diet with biochar included at 0.8% of dietary DM (growing) or 1.0% of dietary DM (finishing). The growing diet consisted of 40% corn silage, 40% wheat straw, 15% modified distillers grains plus solubles, and 5% supplement, with 0.8% biochar replacing fine ground corn in supplement. The finishing diet consisted of 55% high-moisture corn (HMC), 35% Sweet Bran, 5% wheat straw, …
Evaluation Of Growth Performance, Carcass Characteristics, And Methane And Co2 Emissions Of Growing And Finishing Cattle Raised In Extensive Or Partial-Intensive Cow-Calf Production Systems, Zachary E. Carlson, Levi J. Mcphillips, Rick R. Stowell, Galen E. Erickson, Mary E. Drewnoski, Jim C. Macdonald
Evaluation Of Growth Performance, Carcass Characteristics, And Methane And Co2 Emissions Of Growing And Finishing Cattle Raised In Extensive Or Partial-Intensive Cow-Calf Production Systems, Zachary E. Carlson, Levi J. Mcphillips, Rick R. Stowell, Galen E. Erickson, Mary E. Drewnoski, Jim C. Macdonald
Department of Animal Science: Faculty Publications
An experiment was conducted over 2 yr to measure performance and greenhouse gas (GHG) emissions of weaned calves from two cow-calf production systems. Crossbred steers and heifers (n = 270, initial body weight (BW) = 207 kg, SD = 35) were used in a randomized complete block design, with treatments applied to the cow-calf system. Treatments were: 1) a traditional system consisting of April to June calving with smooth bromegrass pasture and grazed corn residue as forage resources (TRAD); 2) an alternative system consisting of July to September calving utilizing partial-drylot feeding, summer-planted oats, and corn residue grazing (ALT). …
Use Of Bedding Materials In Beef Bedded Manure Packs In Hot And Cool Ambient Temperatures: Effects On Ammonia, Hydrogen Sulfide, And Greenhouse Gas Emissions, Jeff P. Jaderborg, Mindy J. Spiehs, Bryan L. Woodbury, Alfredo Dicostanzo, David B. Parker
Use Of Bedding Materials In Beef Bedded Manure Packs In Hot And Cool Ambient Temperatures: Effects On Ammonia, Hydrogen Sulfide, And Greenhouse Gas Emissions, Jeff P. Jaderborg, Mindy J. Spiehs, Bryan L. Woodbury, Alfredo Dicostanzo, David B. Parker
Roman L. Hruska U.S. Meat Animal Research Center: Reports
Throughout the Upper Midwest, producers have observed increased land and fertilizer prices, resulting in increased popularity of confinement feeding facilities such as mono-slope and hoop barns with bedded packs. Environmental and public pressure has been placed on the agriculture community to reduce ammonia (NH3), hydrogen sulfide (H2S), and greenhouse gas (GHG) emissions from concentrated animal feeding operations (CAFOs). This study was conducted to determine the effects of bedding material (corn stover (CS), bean stover (BS), wheat straw (WS), or pine wood chips (PC)) and ambient temperature (15°C (COOL) or 30°C (HOT)) on NH3, CH4, CO2, N2O, and H2S flux in …
Evaluation Of The Effects Of Biochar On Diet Digestibility And Methane Production From Growing And Finishing Steers, Thomas Winders, Melissa L. Jolly, Hannah C. Wilson, James C. Macdonald, Galen E. Erickson, Andrea K. Watson
Evaluation Of The Effects Of Biochar On Diet Digestibility And Methane Production From Growing And Finishing Steers, Thomas Winders, Melissa L. Jolly, Hannah C. Wilson, James C. Macdonald, Galen E. Erickson, Andrea K. Watson
Department of Animal Science: Faculty Publications
The objectives of these studies were to evaluate the effects of biochar (0%, 0.8%, or 3% of diet dry matter) on diet digestibility and methane and carbon dioxide production from cattle on growing and finishing diets. The growing diet consisted of 21% brome hay, 20% wheat straw, 30% corn silage, 22% wet distillers grains plus solubles, and 7% supplement. The finishing diet consisted of 53% dry-rolled corn, 15% corn silage, 25% wet distillers grains plus solubles, and 7% supplement. In both trials biochar replaced fine ground corn in the supplement. Six crossbred steers (initial body weight [BW] 529 kg; SD …
Increasing The Concentration Of Linolenic Acid In Diets Fed To Jersey Cows In Late Lactation Does Not Affect Methane Production, J. V. Judy, G. C. Bachman, T. M. Brown-Brandl, S. C. Fernando, K. E. Hales, K. J. Harvatine, P. S. Miller, P. J. Kononoff
Increasing The Concentration Of Linolenic Acid In Diets Fed To Jersey Cows In Late Lactation Does Not Affect Methane Production, J. V. Judy, G. C. Bachman, T. M. Brown-Brandl, S. C. Fernando, K. E. Hales, K. J. Harvatine, P. S. Miller, P. J. Kononoff
Department of Animal Science: Faculty Publications
Although the inclusion of fat has reduced methane production in ruminants, relatively little research has been conducted comparing the effects of source and profile of fatty acids on methane production in lactating dairy cows. A study using 8 multiparous (325 ± 17 DIM; mean ± SD) lactating Jersey cows was conducted to determine effects of feeding canola meal and lard versus extruded byproduct containing flaxseed as a high-C18:3 fat source on methane production and diet digestibility in late-lactation dairy cows. A crossover design with 32-d periods (28-d adaptation and 4-d collections) was used to compare 2 different fat sources. Diets …
Reducing Methane Production With Corn Oil And Calcium Sulfate: Responses On Whole-Animal Energy And Nitrogen Balance In Dairy Cattle, J. V. Judy, G. C. Bachman, T. M. Brown-Brandl, S. C. Fernando, K. E. Hales, P. S. Miller, R. R. Stowell, P. J. Kononoff
Reducing Methane Production With Corn Oil And Calcium Sulfate: Responses On Whole-Animal Energy And Nitrogen Balance In Dairy Cattle, J. V. Judy, G. C. Bachman, T. M. Brown-Brandl, S. C. Fernando, K. E. Hales, P. S. Miller, R. R. Stowell, P. J. Kononoff
Department of Animal Science: Faculty Publications
The addition of fat and calcium sulfate to diets fed to ruminants has resulted in a reduction in methane production, but the effects on energy balance have not been studied. A study using indirect calorimetry and 16 multiparous (8 Holstein and 8 Jersey; 78 ± 15 d in milk; mean ± standard deviation) lactating dairy cows was conducted to determine how mitigating methane production by adding corn oil or calcium sulfate to diets containing reduced-fat distillers grains affects energy and nitrogen balance. A replicated 4 × 4 Latin square design with 35-d periods (28 d of adaption and 4 d …
The Influence Of Fat And Hemicellulose On Methane Production And Energy Utilization In Lactating Jersey Cattle, O. R. Drehmel, T. M. Brown-Brandl, J. V. Judy, S. C. Fernando, P. S. Miller, K. E. Hales, Paul J. Kononoff
The Influence Of Fat And Hemicellulose On Methane Production And Energy Utilization In Lactating Jersey Cattle, O. R. Drehmel, T. M. Brown-Brandl, J. V. Judy, S. C. Fernando, P. S. Miller, K. E. Hales, Paul J. Kononoff
Department of Animal Science: Faculty Publications
Feeding fat to lactating dairy cows may reduce methane production. Relative to cellulose, fermentation of hemicellulose is believed to result in less methane; however, these factors have not been studied simultaneously. Eight multiparous, lactating Jersey cows averaging (±SD) 98 ± 30.8 d in milk and body weight of 439.3 ± 56.7 kg were used in a twice-replicated 4 × 4 Latin square to determine the effects of fat and hemicellulose on energy utilization and methane production using a headbox-type indirect calorimetry method. To manipulate the concentration of fat, porcine tallow was included at either 0 or 2% of the diet …
Energy Balance And Diurnal Variation In Methane Production As Affected By Feeding Frequency In Jersey Cows In Late Lactation, J. V. Judy, G. C. Bachman, T. M. Brown-Brandl, S. C. Fernando, K. E. Hales, P. S. Miller, R. R. Stowell, P. J. Kononoff
Energy Balance And Diurnal Variation In Methane Production As Affected By Feeding Frequency In Jersey Cows In Late Lactation, J. V. Judy, G. C. Bachman, T. M. Brown-Brandl, S. C. Fernando, K. E. Hales, P. S. Miller, R. R. Stowell, P. J. Kononoff
Department of Animal Science: Faculty Publications
Methane (CH4) production of ruminants typically increases with increased dry matter intake (DMI). However, few studies have observed the effects of feeding multiple times a day and its effects on diurnal variation in CH4 production and energy balance in late-lactation dairy cattle. A study using headbox-style indirect calorimetry and 12 multiparous (225 ± 16.2 d in milk; mean ± SD) lactating Jersey cows was conducted to determine the effects of feeding twice daily on diurnal variation in CH4 production and total energy balance. A crossover design with 14-d periods (10 d of adaption and 4 d …
Dietary Strategies For Mitigation Of Methane Production By Growing And Finishing Cattle, Anna C. Pesta
Dietary Strategies For Mitigation Of Methane Production By Growing And Finishing Cattle, Anna C. Pesta
Department of Animal Science: Dissertations, Theses, and Student Research
Interest in reducing methane (CH4) emissions by cattle has increased recently. Loss of feed energy as CH4 represents both an environmental concern and an energetic loss to the animal. Manipulation of dietary composition has proven to be an effective mitigation strategy. Experiments were conducted to evaluate the effect of several dietary characteristics on CH4 production in growing and finishing cattle, and to develop a novel, non-invasive method for quantifying emissions from animals in a production setting. Short-term gaseous emissions of CH4 and carbon dioxide (CO2) were measured and the CH4:CO2 …
Case Study: Producer Concerns And Perceptions Regarding The Effect Of Methane On Cattle Production And The Environment: A Survey Of Nebraska Producers, B. M. Boyd, A. Jones, Lisa Franzen-Castle, K. Jenkins, Richard J. Rasby, Matt K. Luebbe, Richard R. Stowell, Samodha C. Fernando, Galen E. Erickson
Case Study: Producer Concerns And Perceptions Regarding The Effect Of Methane On Cattle Production And The Environment: A Survey Of Nebraska Producers, B. M. Boyd, A. Jones, Lisa Franzen-Castle, K. Jenkins, Richard J. Rasby, Matt K. Luebbe, Richard R. Stowell, Samodha C. Fernando, Galen E. Erickson
Department of Animal Science: Faculty Publications
Enteric methane production from cattle and its effect on climate change has been a topic of debate. Multiple studies have explored methods to reduce cattle enteric methane production while simultaneously improving performance. However, most strategies developed have not been widely implemented by cattle producers. Knowledge of producer concerns and perceptions on methane production from cattle and its effect on the environment may be limited. Therefore, the objectives of this survey were to determine what Nebraska producers know about methane production by cattle and how it affects performance and to determine whether different age groups, regions of Nebraska, and production size …
Anaerobic Digestion Of Finishing Cattle Manure With And Without Distillers Grains In The Diet., Andrea K. Watson, Terry J. Klopfenstein, Galen E. Erickson, Samodha C. Fernando, Jana L. Harding, Adam L. Shreck
Anaerobic Digestion Of Finishing Cattle Manure With And Without Distillers Grains In The Diet., Andrea K. Watson, Terry J. Klopfenstein, Galen E. Erickson, Samodha C. Fernando, Jana L. Harding, Adam L. Shreck
Department of Animal Science: Faculty Publications
Two treatments (cattle diet) were used in anaerobic digestion of finishing cattle manure. Diet 1 contained 82.5% dry rolled corn (DRC) (CONT) and diet 2 contained 40% wet distillers grains plus solubles (DM basis) replacing DRC (WDGS). Cattle were housed in stanchions for 3 d with complete manure collection in a cement pit. Manure (feces and urine) was sampled and analyzed for minerals, DM and OM. Manure collected was weighed into individual allotments based on DM and frozen. Continuously stirred anaerobic digesters (n = 7, 1 L capacity) were inoculated and maintained for 5 mo before the trial to ensure …