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Descripción
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| Incubations were carried out with batch cultures to study the effects of different nitrogen (N) sources on in vitro fermentation by ruminal micro-organisms of two substrates of variable fermentation rate. The substrates were composed by starch and cellulose in proportions of 75:25 (starch) or 25:75 (cellulose). Three treatments were made by replacing ammonia-N (NH4Cl) with purified soyabean protein (SP) at levels of 0 (NNP), 50% (S50) and 100% (S100) of total N. Compared with NNP, S50 and S100 treatments increased CH4 production by 51.0 and 50.6% for starch and by 7.7 and 29.7% for cellulose substrates, respectively. The increases in volatile fatty acids (VFA) production were 4.4 and 6.3% for starch and 33.1 and 58.9% for cellulose substrates, respectively. These results indicate that the influence of N source on CH4 and VFA production are influenced by the characteristics of the incubated substrate | |
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Internacional
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No |
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Nombre congreso
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XVI JORNADAS SOBRE PRODUCCIÓN ANIMAL |
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Tipo de participación
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960 |
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Lugar del congreso
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Zaragoza |
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Revisores
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Si |
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ISBN o ISSN
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978-84-606-7969-1 |
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DOI
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Fecha inicio congreso
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19/05/2015 |
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Fecha fin congreso
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20/05/2015 |
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Desde la página
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206 |
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Hasta la página
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208 |
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Título de las actas
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TOMO I: Nutrición y Alimentación. Alimentos y digestibilidad in vitro |