Relationship among slurry characteristics and gaseous emissions at different types of commercial Spanish pig farms

Beccaccia, A. and Ferrer, Pablo and Ibáñez, M. A. and Estellés, F. and Rodríguez, Carlos and Moset, Verónica and Blas, C. de and Calvet, S. and García Rebollar, Paloma (2015). Relationship among slurry characteristics and gaseous emissions at different types of commercial Spanish pig farms. "Spanish Journal of Agricultural Research", v. 13 (n. 1); pp. 1-15. ISSN 1695-971X. https://doi.org/10.5424/sjar/2015131-6575.

Description

Title: Relationship among slurry characteristics and gaseous emissions at different types of commercial Spanish pig farms
Author/s:
  • Beccaccia, A.
  • Ferrer, Pablo
  • Ibáñez, M. A.
  • Estellés, F.
  • Rodríguez, Carlos
  • Moset, Verónica
  • Blas, C. de
  • Calvet, S.
  • García Rebollar, Paloma
Item Type: Article
Título de Revista/Publicación: Spanish Journal of Agricultural Research
Date: 2015
ISSN: 1695-971X
Volume: 13
Subjects:
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Producción Animal [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

This study aimed to analyse several factors of variation of slurry composition and to establish prediction equations for potential methane (CH4) and ammonia (NH3) emissions. Seventy-nine feed and slurry samples were collected at two seasons (summer and winter) from commercial pig farms sited at two Spanish regions (Centre and Mediterranean). Nursery, growing-fattening, gestating and lactating facilities were sampled. Feed and slurry composition were determined, and potential CH4 and NH3 emissions measured at laboratory. Feed nutrient contents were used as covariates in the analysis. Near infrared reflectance spectroscopy (NIRS) was evaluated as a predicting tool for slurry composition and potential gaseous emissions. A wide variability was found both in feed and slurry composition. Mediterranean farms had a higher pH (p<0.001) and ash (p=0.02) concentration than those located at the Centre of Spain. Also, type of farm affected ether extract content of the slurry (p=0.02), with highest values obtained for the youngest animal facilities. Results suggested a buffer effect of dietary fibre on slurry pH and a direct relationship (p<0.05) with fibre constituents of manure. Dietary protein content did not affect slurry nitrogen content but decreased (p=0.003) total and volatile solids concentration. Prediction models of potential NH3 emissions (R2=0.89) and CH4 yield (R2=0.61) were obtained from slurry composition. Predictions from NIRS showed a high accuracy for most slurry constituents (R2>0.90) and similar accuracy of prediction of potential NH3 and CH4 emissions (R2=0.84 and 0.68, respectively) to models using slurry characteristics, which can be of interest to estimate emissions from commercial farms and establish mitigation strategies or optimize biogas production.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainAGL2011-30023UnspecifiedUnspecifiedUnspecified

More information

Item ID: 37476
DC Identifier: http://oa.upm.es/37476/
OAI Identifier: oai:oa.upm.es:37476
DOI: 10.5424/sjar/2015131-6575
Official URL: http://revistas.inia.es/index.php/sjar/article/view/6575
Deposited by: Memoria Investigacion
Deposited on: 26 Oct 2015 16:16
Last Modified: 26 Oct 2015 16:16
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