The influence of oscillating dietary protein concentrations on finishing cattle. II. Nutrient retention and ammonia emissions

Archibeque, S. L.; Freetly, H. C.; Cole, N. A.; Ferrell, C. L.

doi:10.2527/jas.2006-208

Cited by 67 publications

(72 citation statements)

References 29 publications

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“…However, Brown et al (2005) reported that DMI was not affected by protein levels who fed diets containing 21-30% CP to Holstein heifer calves. Similarly, Archibeque et al (2007b) showed that DMI did not differ among treatments (p=0.46), but N intake differed (P<0.01) from (Allen 1997).…”

Section: Nutrients Intakementioning

confidence: 79%

Effects of feeding different dietary protein and energy levels on the performance of 12–15-month-old buffalo calves

Shahzad

Tauqir

Ahmad³

et al. 2010

Trop Anim Health Prod

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The study investigated the performance response of different dietary protein and energy levels of Nili-Ravi buffalo calves. Sixty buffalo calves of 12-15 months of age and similar body weight (140 ± 14 kg) were divided in to 12 groups, five animals in each group, according to 4 × 3 factorial arrangements. Twelve rations were formulated containing four levels of crude protein (CP; 10.5%, 12.20%, 13.80%, and 15.55%) each with three levels (1.72, 2.11, and 2.5 Mcal/Kg) of metabolizable energy (ME). Experiment lasted for 100 days; first 10 days were given for dietary adaptation. Daily feed consumption in calves fed all experimental diets were statistically significant (p<0.05) across all treatments. Higher feed intake was observed in buffalo calves fed diets containing 12.20% and 13.85% CP with 2.11 Mcal/kg ME. Results of dry matter (DM) digestion were significantly different (p<0.05) across all treatments. There was a quadratic (p<0.05) response of DM digestibility for levels of dietary protein while, curvilinear (p<0.05) trend with respect to dietary energy levels. Daily weight gain of buffalo calves did not show any treatment effect. The outcome of the present study indicate that 12-15-month-old buffalo calves perform adequately well when fed on diets containing 12.2% CP and 2.10 ME Mcal/Kg.

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Section: Nutrients Intakementioning

confidence: 79%

Effects of feeding different dietary protein and energy levels on the performance of 12–15-month-old buffalo calves

Shahzad

Tauqir

Ahmad³

et al. 2010

Trop Anim Health Prod

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“…Archibeque et al [16] measured a significant 66% reduction of in vitro ammonia volatilization from fresh composite manure and urine samples from an oscillating CP treatment compared to a high CP treatment with no reduction in animal performance [28]. Archibeque et al [16] studied an oscillating treatment that averaged 11.5% CP, and found no difference in the volatilization of ammonia or animal performance between the oscillating treatment and a moderate CP treatment with a constant 11.8% CP. In addition, the timing and the magnitude of the oscillation was considerably different, switching from 9.1% CP to 13.9% CP on a predictable 48 h rotation [16].…”

Section: Ammonia Fluxmentioning

confidence: 99%

“…Archibeque et al [16] studied an oscillating treatment that averaged 11.5% CP, and found no difference in the volatilization of ammonia or animal performance between the oscillating treatment and a moderate CP treatment with a constant 11.8% CP. In addition, the timing and the magnitude of the oscillation was considerably different, switching from 9.1% CP to 13.9% CP on a predictable 48 h rotation [16]. The current study fed an 11.62% CP diet every Wednesday, Thursday, and Saturday and a 13.5% CP diet the remaining days of the week.…”

Section: Ammonia Fluxmentioning

confidence: 99%

“…Steers were fed 11.5% and 13.0% CP diets, and significant decreases in ammonia losses were measured in both the in vitro field trials and in the laboratory. Loss reduction has also been reported from urine and feces in laboratory chambers from livestock receiving a diet with oscillating CP [16]. Cole et al [8] conducted a phase-feeding trial to compare several levels of dietary CP and the timing of feeding different diets.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Reduced Nitrogen Diets on Ammonia Emissions from Cattle Feedlot Pens

et al. 2011

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Reducing crude protein (CP) in livestock diets may lower ammonia emissions. A feeding trial was conducted with crossbred steers at the Southeast Colorado Research Center in Lamar, Colorado from December 2009 to March 2010. Three diet treatments were investigated: Reduced (11.6% CP), Oscillating (13.5% crude protein 4 days/week and 11.6% CP 3 days/week) and Control (13.5% CP). Intact soil core samples (n = 36 per sampling date) were collected from the pen surfaces on three dates corresponding to 45, 92, and 148 days into the feeding cycle. Four pens from each diet treatment were sampled. Cores were placed into flow-through laboratory chambers for seven days and ammonia fluxes were trapped in acid bubblers that were refreshed every 24 h. Average daily ammonia emissions for the Control diet ranged from 6.6 to 9.4 g NH 3 m . Ammonia fluxes from the reduced N treatment were significantly lower (21% to 40%) than from the control diet on the first two sample dates. There was no significant difference between the Oscillating and Control treatments. Reducing CP in cattle feedlot diets may be an effective method for reducing ammonia emissions from pen surfaces. More research is needed to validate these results at commercial scales in different environments to determine if reductions in ammonia can be sustained with lower CP diets without affecting rate of gain, feed efficiency and health.

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“…Feedlot diets containing DDGS tend to be higher in protein than NRC recommendations, often reaching levels of 15 to 18% CP. Several recently published articles evaluated the effects of protein concentrations in beef cattle diet on ammonia emissions and manure quality (Cole et al, 2005;Todd et al, 2006;Archibeque et al, 2007;Spiehs et al, 2012), but the impact of dietary protein levels on the manure concentrations and GHG emissions is deficient. In particular, in the Northern Plains with abundant DDGS, no research has been done comparing the effect of a high protein diet and NRC-recommended protein diet fed to cattle on manure composition and GHG emissions from the feedlot surfaces.…”

Section: Introductionmentioning

confidence: 99%

Effects of pen bedding and feeding high crude protein diets on manure composition and greenhouse gas emissions from a feedlot pen surface

Borhan

Gautam

Engel

et al. 2013

Journal of the Air & Waste Management Association

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Greenhouse gas (GHG) emissions from concentrated animal feeding operations vary by stage of production and management practices. The objective of this research was to study the effect of two dietary crude protein levels (12 and 16%) fed to beef steers in pens with or without corn stover bedding. Manure characteristics and GHG emissions were measured from feedlot pen surfaces. Sixteen equal-sized feedlot pens (19 Â 23 m) were used. Eight were bedded approximately twice a week with corn stover and the remaining eight feedlot pens were not bedded. Angus steers (n ¼ 138) were blocked by live weights (lighter and heavier) with 7 to 10 animals per pen. The trial was a 2 Â 2 factorial design with factors of two protein levels and two bedding types (bedding vs. non bedding), with four replicates. The study was conducted from June through September and consisted of four~28-day periods. Manure from each pen was scrapped once every 28 days and composite manure samples from each pen were collected. Air samples from pen surfaces were sampled in Tedlar bags using a Vac-U-Chamber coupled with a portable wind tunnel and analyzed with a greenhouse gas gas chromatograph within 24 hr of sampling. The manure samples were analyzed for crude protein (CP), total nitrogen (TN), ammonia (NH 3 ), total volatile fatty acid (TVFA), total carbon (TC), total phosphorus (TP), and potassium (K). The air samples were analyzed for methane (CH 4 ), carbon dioxide (CO 2 ), and nitrous oxide (N 2 O) concentrations. The concentration of TN was significantly higher (p < 0.05) in manure from pens with cattle fed the high protein diets. The volatile fatty acids (VFAs) such as acetic, propionic, isobutyric, butyric, isovaleric, and valeric acids concentrations were similar across both treatments. There were no significant differences in pen surface GHG emissions across manure management and dietary crude protein levels.Implications: Livestock manure produces odor and emits GHGs (CO 2 , CH 4 , and N 2 O) at different stages of production and management practices that have significant environmental concerns. Thus, it is important to measure GHG contributions from different sources and develop appropriate mitigation strategies for minimizing GHG contribution from livestock production facilities. Two dietary protein levels (12 and 16%) fed to beef steers in pens with or without corn stover bedding were studied. The results indicated that dietary protein levels and bedding vs. no bedding had very little effect on GHG emissions and manure composition under open feedlot conditions in North Dakota climatic conditions and management practices. IntroductionThe overall gaseous emissions from concentrated livestock operations vary by animal type and growth stage due to different diets, daily feed intake, quality of diet, and feed conversion mechanism. In the U.S., total greenhouse gases (GHG) including methane emissions from agricultural sources (livestock production, agricultural soils, and rice production) were estimated to be approximately 500 metric tons CO 2 e...

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The influence of oscillating dietary protein concentrations on finishing cattle. II. Nutrient retention and ammonia emissions

Cited by 67 publications

References 29 publications

Effects of feeding different dietary protein and energy levels on the performance of 12–15-month-old buffalo calves

Effects of feeding different dietary protein and energy levels on the performance of 12–15-month-old buffalo calves

Influence of Reduced Nitrogen Diets on Ammonia Emissions from Cattle Feedlot Pens

Effects of pen bedding and feeding high crude protein diets on manure composition and greenhouse gas emissions from a feedlot pen surface

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