Article (Scientific journals)
Effect of pig faecal donor and of pig diet composition on in vitro fermentation of sugar beet pulp.
Bindelle, Jérôme; Buldgen, André; Lambotte, Damien et al.
2007In Animal Feed Science and Technology, 132, p. 212-226
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Keywords :
Pig; Dietary fibre; Bodyweight; In vitro fermentation; Gas-test technique; Sugar beet pulp; Porcin; Fibre alimentaire; Poids corporel; Fermentation in vitro; Technique du gaz-test; Betterave sucrière
Abstract :
[en] Two experiments were undertaken to investigate the influence of (1) pig bodyweight and (2) dietary fibre content of the diet on the in vitro gas production of sugar beet pulp fibre using faecal inoculum. In the first experiment, inocula prepared from young pigs (Y; 16–50 kg), growing pigs (G; 62–93 kg) and sows (S; 216–240 kg) were compared. Sugar beet pulp, hydrolysed in vitro with pepsin and then pancreatin, was used as the fermentation substrate. The cumulated gas productions over 144 h were modelled and the kinetics parameters compared. Lag times (Y: 4.6 h; G: 6.4 h; S: 9.2 h) and halftimes to asymptote (Y: 14.7 h; G: 15.9 h; S: 20.8 h) increased with pig bodyweight (P<0.001) and the fractional degradation rates of the substrate differed between the pig categories (Y: 0.110 h−1; G: 0.115 h−1; S: 0.100 h−1; P<0.001). The final gas productionwas not affected (P=0.10) by the inoculum source. In the second experiment hydrolysed sugar beet pulp was fermented with four inocula prepared from pigs fed diets differing in their total and soluble dietary fibre contents, i.e. low fibre diet rich in soluble fibre (LOW-S) or in insoluble fibre (LOW-I) or high fibre diet rich in soluble fibre (HIGHS) or in insoluble fibre (HIGH-I). The total and the soluble dietary fibres influenced the kinetics of gas production. The presence of soluble fibres decreased the lag times, whatever the total dietaryfibre content (2.7 h for LOW-S versus 3.5 h for LOW-I, 4.0 h for HIGH-S versus 4.4 h for HIGH-I; P<0.001). The half-times to asymptote were higher with the low fibre diets (P<0.001) and, for similar total dietary fibre contents, they were lower when the proportion of soluble fibres increased (LOW-S: 9.9 h; LOW-I: 11.4 h; HIGH-S: 8.9 h; HIGH-I: 10.1 h; P<0.001). The fractional degradation rates of the substrate were the highest with the fibre-rich diet containing a high proportion of soluble fibres (0.158 h−1; P<0.001). In conclusion, the bodyweight of the faeces donors and the dietary fibre composition of the pig diet influence the in vitro fermentation kinetics of hydrolysed sugar beet pulp, but not the final gas production.
Disciplines :
Animal production & animal husbandry
Agriculture & agronomy
Author, co-author :
Bindelle, Jérôme  ;  Université de Liège - ULiège > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech
Buldgen, André;  Faculté Universitaire des Sciences Agronomiques de Gembloux - FUSAGx > Unité de Zootechnie
Lambotte, Damien;  Centre de Recherches Agronomiques - CRA W, Gembloux > Département de Productions et Nutrition Animales
Wavreille, José;  Centre de Recherches Agronomiques - CRA W, Gembloux > Département de Productions et Nutrition Animales
Leterme, Pascal;  Prairie Swine Centre, Saskatoon, Canada
Language :
English
Title :
Effect of pig faecal donor and of pig diet composition on in vitro fermentation of sugar beet pulp.
Publication date :
2007
Journal title :
Animal Feed Science and Technology
ISSN :
0377-8401
Publisher :
Elsevier Science, Amsterdam, Netherlands
Volume :
132
Pages :
212-226
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 02 September 2009

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