Dietary protein affects nitrogen excretion and ammonia emission from slurry of growing–finishing pigs

Canh, T.T.; Aarnink, A.J.A.; Schutte, J.B.; Sutton, A.L.; Langhout, D.J.; Verstegen, M.W.A.

doi:10.1016/s0301-6226(98)00156-0

Cited by 217 publications

(216 citation statements)

References 11 publications

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“…These significant reductions were achieved without a negative effect on N retention, resulting in an increase in N absorption in the low-CP diets. Reductions previously reported in total N, urinary N (Canh et al, 1998a;Carpenter et al, 2004) and faecal N (Lee and Kay, 2003;Portejoie et al, 2004;Leek et al, 2005) are in line with those found in the current study. Carpenter et al (2004) reported a proportional reduction of 0.06 in total daily N excretion per 10 g/kg reduction in dietary CP to 150 g/kg.…”

Section: Discussionsupporting

confidence: 93%

“…Firstly, there are a number of factors that drive the volatilisation of NH 3 such as the equilibrium of ammonia with ammonium, pH, temperature and ammonia concentration (McCrory and Hobbs, 2001). The pH of slurry is of huge relevance to ammonia emissions from pig manure (Sommer and Husted, 1995;O'Connell et al, 2005), with just a minor change having a substantial effect (Canh et al, 1998a). Secondly, there may not have been enough inulin present to bring about a reduction in manure pH and manure ammonia emissions.…”

Section: Discussionmentioning

confidence: 99%

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The effect of high and low dietary crude protein and inulin supplementation on nutrient digestibility, nitrogen excretion, intestinal microflora and manure ammonia emissions from finisher pigs

Lynch

Sweeney

Callan

et al. 2007

Animal

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A 2 3 2 factorial experiment was performed to investigate the interaction between a high-and low-crude-protein (CP) diet (200 v. 140 g/kg) and inulin supplementation (0 v. 12.5 g/kg) on nutrient digestibility, nitrogen (N) excretion, intestinal microflora, volatile fatty acid (VFA) concentration and manure ammonia emissions from 24 boars (n 5 6, 74.0 kg live weight). The diets were formulated to contain similar concentrations of digestible energy and lysine. Pigs offered the high-CP diets had a higher excretion of urinary N (P , 0.001), faecal N (P , 0.01) and total N (P , 0.001) than the pigs offered the low-CP diets. Inulin supplementation increased faecal N excretion (P , 0.05) and decreased the urine N : faeces N ratio (P , 0.05) compared with the inulin-free diets. There was no effect (P . 0.05) of dietary treatment on N retention. There was an interaction (P , 0.05) between dietary CP concentration and inulin supplementation on caecal Enterobacteria spp. Pigs offered the diet containing 200 g/kg of CP plus inulin decreased the population of Enterobacteria spp. compared to those with the inulinsupplemented 140 g/kg CP diet. However, CP level had no significant effect on the population of Enterobacteria spp. in the unsupplemented diets. Inulin supplementation increased caecal Bifidobacteria (P , 0.01) compared with the inulin-free diets. There was no effect of inulin supplementation on VFA concentration or intestinal pH (P . 0.05). Pigs offered the 200 g/kg CP diets had higher (P , 0.05) manure ammonia emissions from 0 to 240 h of storage than pigs offered the 140 g/kg CP. In conclusion, inulin supplementation resulted in an increase in Bifidobacteria concentration and a reduction in Enterobacteria spp. at the high CP level indicating that inulin has the ability to beneficially manipulate gut microflora in a proteolytic environment.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

The effect of high and low dietary crude protein and inulin supplementation on nutrient digestibility, nitrogen excretion, intestinal microflora and manure ammonia emissions from finisher pigs

Lynch

Sweeney

Callan

et al. 2007

Animal

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“…Similar results were obtained by Kay and Lee (1997) and Canh et al (1998) between dietary levels of 187 and 130 g kg -1 and between 16.5 and 12.5% crude protein respectively. Reductions in ammonia emission equivalent to 9.8% per 10 g kg -1 reduction in dietary crude protein are reported by Kay and Lee (1997).…”

Section: Ammoniasupporting

confidence: 89%

“…Reductions in ammonia emission equivalent to 9.8% per 10 g kg -1 reduction in dietary crude protein are reported by Kay and Lee (1997). Comparing in vivo and in vitro measurements of ammonia release, Canh et al, (1998) report that emissions were reduced by 10% and 12.5%, respectively, per 10 g kg -1 decrease in dietary crude protein. Kendall et al (2000) reported a reduction in ammonia concentration from 29.6 ppm to 12.9 ppm (approximately a 56% reduction) in the exhaust air from 12.6% and 9.35% crude protein diets, respectively, supplemented with synthetic lysine.…”

Section: Ammoniamentioning

confidence: 99%

The influence of diet crude protein level on odour and ammonia emissions from finishing pig houses

Hayes

Leek

Curran

et al. 2004

Bioresource Technology

111

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Publication information Bioresource Technology, 91 (3): 309-315Publisher Elsevier Item record/more information http://hdl.handle.net/10197/4333 Publisher's statementThis is the author's version of a work that was accepted for publication in Bioresource Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Bioresource Technology ( and 8.27 g day -1 animal -1 respectively (P 0.001). There was no significant difference in the average daily intake and the average daily gain for the four diets (P>0.05).Manipulation of dietary crude protein levels would appear to offer a low cost alternative, in relation to end of pipe treatments, for the abatement of odour and ammonia emissions from finishing pig houses.

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“…Even though feed production is the major source of emissions from livestock, emissions from livestock enteric fermentation and manure are also influenced by the composition of livestock diets (Canh et al, 1998;Beauchemin et al, 2008). Included in feed production is the expansion of agricultural land into natural areas, which accounts for 9% of livestock's emissions (Barona et al, 2010;Gerber et al, 2013a).…”

Section: Introductionmentioning

confidence: 99%

Localising livestock protein feed production and the impact on land use and greenhouse gas emissions

Sasu-Boakye

Cederberg

Wirsenius

2014

Animal

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Livestock farmers in Sweden usually grow feed grains for livestock but import protein feed from outside Sweden. Aside from the economic implications, some environmental issues are associated with this practice. We used life cycle assessment to evaluate the impact of local protein feed production on land use and greenhouse gas emissions, compared with the use of imported protein feed, for pig meat and dairy milk produced in Sweden. Our results showed that local production reduced greenhouse gas emissions by 4.5% and 12%, respectively, for pigs and dairy cows. Land use for feed production in Sweden increased by 11% for pigs and 25% for dairy cows, but total land use decreased for pig production and increased for dairy milk production. Increased protein feed cultivation in Sweden decreased inputs needed for animal production and improved some ecological processes (e.g. nutrient recycling) of the farm systems. However, the differences in results between scenarios are relatively small and influenced to an extent by methodological choices such as co-product allocation. Moreover, it was difficult to assess the contribution of greenhouse emissions from land use change. The available accounting methods we applied did not adequately account for the potential land use changes and in some cases provided conflicting results. We conclude that local protein feed production presents an opportunity to reduce greenhouse gas emissions but at a cost of increasing land occupation in Sweden for feed production.

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Dietary protein affects nitrogen excretion and ammonia emission from slurry of growing–finishing pigs

Cited by 217 publications

References 11 publications

The effect of high and low dietary crude protein and inulin supplementation on nutrient digestibility, nitrogen excretion, intestinal microflora and manure ammonia emissions from finisher pigs

The effect of high and low dietary crude protein and inulin supplementation on nutrient digestibility, nitrogen excretion, intestinal microflora and manure ammonia emissions from finisher pigs

The influence of diet crude protein level on odour and ammonia emissions from finishing pig houses

Localising livestock protein feed production and the impact on land use and greenhouse gas emissions

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