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Title:
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Influencia de la época del año y de la fase productiva sobre el volumen y composición de los purines de cerdos de engorde;
Influence of period of year and feeding phase on the yield and composition of slurry from growing-finishing pigs
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Author:
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Babot Gaspa, Daniel; Flores, J.; Coma, J.; Balcells Terés, Joaquim; Soldevila, J.; Álvarez Rodríguez, Javier
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Notes:
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A total of 11 pig farms (2 buildings each) raising (LandracexLarge-White) x Pietrain hybrids from 19 to 100 kg live-weight were used to study the effects of fattening period (cool vs. warm season) and feeding phase (1: 20-40 kg, 16.7% crude protein (CP); 2: 40-70 kg, 15.6% CP and 3: 70-100 kg, 14.8% CP) on productive performance, slurry yield and its composition during 2 consecutive growing-finishing periods. The feed conversion rate was greater in the cool than in warm period of year (P<0.05). The slurry yield and its dry matter content was similar between periods of year (P>0.10) but the cool period induced lower slurry density and greater organic and ammoniacal nitrogen content than the warm period (P<0.05). Water use by pigs and several slurry traits (electrical conductivity, temperature and ammoniacal nitrogen) increased as the fattening cycle progressed (P<0.05), whereas phosphorus content of slurry decreased (P<0.05). |
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Subject(s):
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-Swine
-Excreta
-Manure
-Fertilizer value
-Environment |
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Rights:
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(c) Asociación Interprofesional para el Desarrollo Agrario, 2013
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Document type:
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Conference Object
Article - Published version |
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Published by:
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Asociación Interprofesional para el Desarrollo Agrario
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