Author:
Bauer E.,Williams B. A.,Voigt C.,Mosenthin R.,Verstegen M. W. A.
Abstract
AbstractA comparison of in vitro microbial activity was made between inocula from faeces of adult and unweaned pigs, using a range of carbohydrate-rich substrates. The substrates tested were classified into groups (fibre-rich, grains, gums, pectin, saccharides, storage carbohydrates, and miscellaneous). Proximate and fibre analyses were determined for all substrates tested. Fermentation kinetics were measured according to the cumulative gas production technique. End-point products such as gas, volatile fatty acids and ammonia were also determined. The faeces from the adult pigs (ATF) were collected from four castrated finisher pigs (Dutch Landrace×Great Yorkshire). These were offered a diet based on highly digestible maize starch and fish meal, so as to be as free as possible of fermentable carbohydrates. The unweaned piglet faeces were collected from 19 unweaned piglets (male and female) which were 27 to 30 days old. The parameters were tested for significance by an analysis of variance using the Tukey's studentized range test of multiple comparisons. There were significant differences in the fermentation patterns both due to source of substrate and inoculum. It would appear that the metabolic activity of the microflora does differ significantly between adult and weanling pigs, though this varied for the different carbohydrates tested. Suggestions are made as to how to select potential carbohydrate ingredients for an in vivo experiment, based on their in vitro fermentation characteristics.
Publisher
Cambridge University Press (CUP)
Subject
Animal Science and Zoology
Reference35 articles.
1. Effect of dietary fiber on microbial activity and microbial gas production in various regions of the gastrointestinal tract of pigs;Jensen;Applied and Environmental Microbiology,1994
2. Williams B. A. , Voigt C. and Verstegen M. W. A. 1998. The faecal microbial population can be representative of large intestinal microfloral activity. Proceedings of the British Society of Animal Science, 1998, p. 165.
Cited by
109 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献