Salinity, organic content, micronutrients and heavy metals in pig slurries from South-eastern Spain

Moral, R.; Pérez-Murcia, M.D.; Pérez‐Espinosa, A.; Moreno‐Caselles, J.; Paredes, C.; Rufete, B.

doi:10.1016/j.wasman.2007.01.009

Cited by 135 publications

(70 citation statements)

References 17 publications

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“…One of the main concerns related to pig slurry composting is the concentration of Cu and Zn, which can be particularly high in pig slurry from piglets (Moral et al, 2008). These are mainly recovered from the pig slurry in the solid fraction, and later, after composting, in the compost produced.…”

Section: Resultsmentioning

confidence: 99%

Treatment of swine manure: case studies in European’s N-surplus areas

García-González

Riaño

Teresa³

et al. 2016

Sci. agric. (Piracicaba, Braz.)

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Section: Resultsmentioning

confidence: 99%

Treatment of swine manure: case studies in European’s N-surplus areas

García-González

Riaño

Teresa³

et al. 2016

Sci. agric. (Piracicaba, Braz.)

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“…Therefore, understanding the factors of variation of slurry composition under commercial conditions is essential to predict and control these emissions. However, it has also been reported that pig slurry composition in commercial farms is very heterogeneous and depends on multiple and interacting factors including the animal itself (breed and physiological status), feed composition and consumption, the housing system, manure management practices or environmental conditions (Sánchez & González, 2005;Conn et al, 2007;Moral et al, 2008;Martínez-Suller et al, 2010;Álvarez-Rodríguez et al, 2013).…”

Section: Description Of Farm Selection and Sample Collectionmentioning

confidence: 99%

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

Becaccia

Ferrer

Ibáñez

et al. 2015

Span. j. agric. res.

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This study aimed to analyse several factors of variation of slurry composition and to establish prediction equations for potential methane (CH 4 ) and ammonia (NH 3 ) 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 CH 4 and NH 3 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 NH 3 emissions (R 2 =0.89) and CH 4 yield (R 2 =0.61) were obtained from slurry composition. Predictions from NIRS showed a high accuracy for most slurry constituents (R 2 >0.90) and similar accuracy of prediction of potential NH 3 and CH 4 emissions (R 2 =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. Additional key words: ammonia; methane; NIRS; animal nutrition; prediction model.

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“…For example, the total amount of organic dry substance produced in Germany by about 16 million cattle, 26 million pigs, 114 million poultry and 4 million sheep and horses accounts for 57,500 tonnes organic dry substance in 2001, whereas in Japan the total amount of animal waste is about 90 million tonnes per year (Haga, 1998;Köttner, 2001). Manure production in Spain was about 190 million tonnes per year (Moral et al, 2008). The yearly production of poultry and livestock waste in Russia exceeds 700 million m 3 (Kalyuzhnyi et al, 1998).…”

Section: The Problem Of Animal Wastementioning

confidence: 99%