Effects of benzoic acid and inulin on ammonia-nitrogen excretion, plasma urea levels, and the pH in faeces and urine of weaner pigs
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 243-245 |
Journal / Publication | Livestock Science |
Volume | 134 |
Issue number | 1-3 |
Online published | 11 Jul 2010 |
Publication status | Published - Sept 2010 |
Externally published | Yes |
Link(s)
Abstract
The present experiment tested the hypothesis that dietary supplementation with BA and IN would reduce total ammonia-N (NH3-N) excretion. Ninety-six female pigs (Large White×Landrace) aged 21±3days and weighing 5.87±0.077kg (mean±S.E.) were used in a 2×3 factorial experiment, with the respective factors being benzoic acid (BA; 0 and 5g/kg) and inulin (IN; 0, 40 and 80g/kg) in the diets. Pigs were housed individually and fed their respective diet for 3weeks. Blood samples from 6 focus pigs per diet were collected on days 14 and 21, and digesta, urine and faecal samples were collected at slaughter on day 21. Feeding only BA decreased (P=0.050) the combined faecal and urinary NH3-N concentration while IN increased (P=0.001) the NH3-N proportion in faeces and proportionally decreased (P=0.001) the NH3-N proportion in urine. Additionally, dietary BA reduced the pH level in urine (P=0.001) and faeces (P=0.033), and plasma urea levels were decreased with both BA (P=0.010) and IN (P=0.008). No significant BA×IN interactions were noted. These data suggest that BA and IN can reduce NH3-N excretion by different mechanisms, possibly by reducing excreta pH and bacterial populations (BA), as well as changing bacterial metabolic activities (BA and IN).
Research Area(s)
- Ammonia-N, Benzoic acid, Inulin, Pig
Citation Format(s)
Effects of benzoic acid and inulin on ammonia-nitrogen excretion, plasma urea levels, and the pH in faeces and urine of weaner pigs. / Halas, Danka; Hansen, Christian Fink; Hampson, David J. et al.
In: Livestock Science, Vol. 134, No. 1-3, 09.2010, p. 243-245.
In: Livestock Science, Vol. 134, No. 1-3, 09.2010, p. 243-245.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review