Intrinsic ability of the faecal microbial flora to ferment dietary fibre at different growth stages of pigs

Goff, Gwénola Le; Noblet, Jean; Cherbut, C.

doi:10.1016/s0301-6226(02)00191-4

Cited by 34 publications

(23 citation statements)

References 27 publications

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“…The probable explanation for this is that as pigs grow, their digestive tract bacterial profile becomes more stable, especially the hind-gut bacteria (Varel et al, 1982), and also the capacity of the hindgut increases in response to fibrous diets (Bach Knudsen and Jørgensen, 2001). Previous studies have confirmed that the ability of pigs to digest and utilize fibre in the diet is proportional to their age and live body weight (Fernandez et al, 1986;Shi and Noblet, 1993;Reverter et al, 1999;Le Goff et al, 2003). However, Jørgensen et al (1996) found that animals given a high fiber diet in fact had higher daily live weight gain compared with pigs on a low fiber diet.…”

Section: Pig Performancementioning

confidence: 88%

Effect of Dietary Fiber Level on the Performance and Carcass Traits of Mong Cai, F1 Crossbred (Mong횞Cai??Yorkshire) and Landrace횞Yorkshire Pigs

Len¹,

Lindberg²,

Ogle³

2008

Asian Australas. J. Anim. Sci

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:The effects of feeding diets containing 20% (L) or 30% (H) neutral detergent fiber (NDF) (DM basis) on performance and carcass traits were studied in three breeds of pig, including pure Mong Cai (MC), crossbred Landrace×Yorkshire (LY) and crossbred MC×Yorkshire (F1). The experiment had a factorial design with two factors, breed and diet. Eighteen piglets of each breed (60±3 days) were randomly allocated to three treatments: L-L, low fiber diet in both growing and finishing periods; L-H, low and high fiber diet in the growing and finishing period, respectively; and H-H, high fiber diet in both periods. The diets were iso-energetic and iso-nitrogenous within feeding period. The main fibrous ingredients of the diets were rice bran and cassava residue. There were no effects of fiber level on daily dry matter feed intake (DMI), expressed as g/kg metabolic body weight (BW 0.75 ), in both feeding periods (p>0.05). DMI was highest for MC, followed by F1 and LY (p<0.001). Average daily gain (ADG) in L-L and L-H was higher than in H-H in the growing period (p<0.001) and overall (p<0.05), while feed conversion ratio (FCR) was higher in H-H than in L-L and L-H in the growing period (p<0.05) and overall, but no significant differences between treatments were found in the finishing period. In both periods, Landrace×Yorkshire had the highest ADG and the lowest FCR, followed by F1 and Mong Cai (p<0.001). There were no interactions between breed and diet for performance and carcass traits. Carcass and dressing percentage was lower for L-H and H-H than for L-L (p<0.05). There were no significant differences among treatments in back fat thickness and lean meat percentage, or in crude protein and ether extract contents of lean meat. Carcass, dressing and lean meat percentage was highest for LY, lowest for MC and intermediate for F1 (p<0.001). It can be concluded that feeding a high fiber diet in the growing period reduced pig performance, but there was no effect in the finishing period. Pure Mong Cai pigs are not particularly suitable for meat purposes, although the F1 cross with Large White had reasonably good growth performance and carcass quality.

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Section: Pig Performancementioning

confidence: 88%

Effect of Dietary Fiber Level on the Performance and Carcass Traits of Mong Cai, F1 Crossbred (Mong횞Cai??Yorkshire) and Landrace횞Yorkshire Pigs

Len¹,

Lindberg²,

Ogle³

2008

Asian Australas. J. Anim. Sci

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“…The reduction of fecal pH of the heaviest weight of pigs could be due to more intensive fermentation activity in the gut as pigs grow. Indeed, previous studies with heavy pigs (Le Noblet and Le Goff, 2001;Le Goff et al, 2003;Galassi et al, 2004Galassi et al, , 2005Galassi et al, , 2007Galassi et al, , 2010) demonstrated better fiber utilization in the final part of the growth of finishing pigs.…”

Section: Growth and Slaughter Performancesmentioning

confidence: 94%

Digestibility and metabolic utilization of diets containing whole-ear corn silage and their effects on growth and slaughter traits of heavy pigs1

Zanfi

Colombini

Mason

et al. 2014

Journal of Animal Science

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“…Their findings are in agreement with our results, where the amount of gas produced in first 10 h of incubation and MFRs from PEC and XYL where higher in CC-36 than in CC-78. According to Le Goff et al (2003) the faeces of young pigs contain relatively large amounts of (intestinally) unfermented carbohydrates, which enhance the bacterial activity in the inoculum and provoke higher gas production. We believe that the conclusion of Le Goff et al (2003) is not valid for the fermentation in caecum.…”

Section: Effect Of Rabbit Agementioning

confidence: 99%

“…According to Le Goff et al (2003) the faeces of young pigs contain relatively large amounts of (intestinally) unfermented carbohydrates, which enhance the bacterial activity in the inoculum and provoke higher gas production. We believe that the conclusion of Le Goff et al (2003) is not valid for the fermentation in caecum. If the carbohydrates appear in the faeces of young animals then they were not fermented in the caecum.…”

Section: Effect Of Rabbit Agementioning

confidence: 99%

The effect of rabbit age on in vitro caecal fermentation of starch, pectin, xylan, cellulose, compound feed and its fibre

Lavrenčič

2007

Animal

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In vitro gas production kinetics of six different substrates, pectin (PEC), xylan (XYL), starch (STA), cellulose (CEL), commercial compound feed (FEED; 201 g crude protein per kg, 155 g crude fibre per kg, 334 g neutral-detergent fibre (NDF) per kg and 190 g acid-detergent fibre (ADF) per kg) and an NDF prepared from commercial compound feed (NDF FEED ) were determined using the caecum contents of weaned rabbits (36 days of age) and of rabbits at slaughter age (78 days of age) as inoculums. The cumulated gas production over 96 h of incubation was modelled with Gompertz model, and the kinetic parameters compared. The total potential gas production (parameter 'B' of the Gompertz model) was not affected (P . 0.05) by the inoculum source, except with STA, where rabbits at slaughter weight had significantly higher total potential fermentability (314 ml/g dry matter (DM)) than those at weaning age (189 ml/g DM). Intensities of fermentation (maximum fermentation rate; MFR) of PEC (32.2 ml/h) and XYL (24.4 ml/h) were significantly greater in rabbits at weaning, while that of STA (45 ml/h) was significantly lower than at slaughter age (23.0, 14.3 and 14.0 ml/h for PEC, XYL and STA, respectively). The MFRs of CEL and NDF FEED were very similar between inoculum sources. In the first 10 h of fermentation which correspond to the normal retention time of the substrates in the caecum, the highest amount of gas was produced from PEC, followed by FEED and XYL. These substrates had a time of maximum fermentation rate (TMFR) at both rabbit ages short enough (8.0 and 9.5 h for PEC, 9.5 and 6.6 h for FEED, 13.7 and 14.2 h for XYL at weaning and at slaughter age, respectively) to be almost completely fermented in vivo.

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Intrinsic ability of the faecal microbial flora to ferment dietary fibre at different growth stages of pigs

Cited by 34 publications

References 27 publications

Effect of Dietary Fiber Level on the Performance and Carcass Traits of Mong Cai, F1 Crossbred (Mong횞Cai??Yorkshire) and Landrace횞Yorkshire Pigs

Effect of Dietary Fiber Level on the Performance and Carcass Traits of Mong Cai, F1 Crossbred (Mong횞Cai??Yorkshire) and Landrace횞Yorkshire Pigs

Digestibility and metabolic utilization of diets containing whole-ear corn silage and their effects on growth and slaughter traits of heavy pigs1

The effect of rabbit age on in vitro caecal fermentation of starch, pectin, xylan, cellulose, compound feed and its fibre

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