The digestive strategy of the common marmoset, Callithrix jacchus

Caton, Judith; Hill, David M.; Hume, I. D.; Crook, Graeme A.

doi:10.1016/0300-9629(95)02013-6

Cited by 65 publications

(98 citation statements)

References 14 publications

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“…The value for MRT of polystyrene beads (8.3 +1.5 hr) from Power [1991] was the shortest of all the studies. The mean difference between liquid and particulate markers found by Caton et al [1996] was 2.47 hr with a standard deviation of 0.833 hr. Based on these data a sample of ten animals was sufficient to detect a mean difference of 0.66 hr between liquid and particulate markers at P = 0.05 with an power of 80%.…”

Section: Resultsmentioning

confidence: 84%

“…Surprisingly, there were no significant correlations among either marker's MRT and DMI, ADDM, fecal DM, or body mass. The MRT results were compared with the results from Caton et al [1996] and Power [1991] (Fig. 2).…”

Section: Resultsmentioning

confidence: 99%

“…The difference between MRT for Co and for Cr was examined using paired-sample (-tests. The differences in MRT values among the three data sets (this study, Caton et al [1996], and Power [1991]) were examined using ANOVA.…”

Section: Statistical Analysesmentioning

confidence: 99%

“…Marmoset gut morphology does differ from that of other callitrichids; marmosets have a larger proportion of the intestinal tract represented by the cecum and colon than do tamarins and lion tamarins [Ferrari & Martins, 1992;Ferrari et al, 1993;Power, 1991] and a more complex cecum [Coimbra-Filha et al, 1980]. An earlier study of passage rate of digesta in three common marmosets using both a particulate (chromium-mordanted fiber) and a liquid marker (cobalt EDTA) indicated that the liquid marker passed through the marmoset digestive tract more slowly than did the particulate marker [Caton et al, 1996]. Caton and colleagues hypothesized the common marmoset has a cecal-colonic separation mechanism, in which particulate matter is largely excluded from the cecum, and liquid digesta (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…The results for passage rate were compared with the results from Caton et al [1996] for liquid and particulate markers, and from Power [1991] for polystyrene beads, a seed-like particulate marker.…”

Section: Introductionmentioning

confidence: 99%

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Digestion in the common marmoset (Callithrix jacchus), a gummivore–frugivore

Power

Myers

2009

American J Primatol

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Wild common marmosets (Callithrix jacchus) feed on fruits, insects, and gums, all of which provide different digestive challenges. Much of the ingested mass of fruits consists of seeds. In general, seeds represent indigestible bulk to marmosets and could inhibit feeding if they are not eliminated rapidly. In contrast, gums are (Winked polysaccharides that require microbial fermentation. Their digestion would benefit from an extended residence time within the gut. Earlier research found that mean retention time (MRT) for a liquid digestive marker (cobalt EDTA) was significantly longer than MRT for a particulate marker (chromium-mordanted fiber), suggesting that common marmosets preferentially retain liquid digesta. We conducted two four-day-long digestion trials on 13 individually housed adult common marmosets fed a single-item, purified diet in order to examine the relations among MRT of cobalt EDTA and chromium-mordanted fiber, food dry matter intake (DMI), and apparent digestibility of dry matter (ADDM). We compared the MRT values with the data from the previous study mentioned above and a study using polystyrene beads. There were no significant correlations among MRT, ADDM, or DMI, although increases in DMI between trials were associated with decreases in MRT. ADDM was consistent within individuals between trials; but the mean values ranged from 75.0 to 83.4% among individuals. We found no difference in MRT between the liquid (17.5 +1.6 hr) and particulate (17.9+1.4 hr) markers. Although these values were not significantly different than found previously, the MRT for chromium-mordanted fiber tended to be longer. This probably reflects the relatively small size of the chromium-mordanted fiber particles used in this study. An inverse relationship between particle size and MRT was evident; the mean MRT of polysterene beads, the largest marker, was only 8.3 +1.5 hr. Marmosets appear to retain liquids and small particles within the gut longer than large particles. Am. J. Primatol. 71:957-963, 2009.

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Section: Resultsmentioning

confidence: 84%

Section: Resultsmentioning

confidence: 99%

Section: Statistical Analysesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Digestion in the common marmoset (Callithrix jacchus), a gummivore–frugivore

Power

Myers

2009

American J Primatol

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Intake, digestibility, and passage of a commercially designed diet by two propithecus species

et al. 1999

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The digestibility and passage of an experimental diet was used to compare the digestive physiology of two Propithecus species: P. verreauxi and P. tattersalli. Though both animals have a similar feeding ecology, the captive status of P. verreauxi is considered more stable than that of P. tattersalli. The test diet included a local tree species, Rhus copallina, at 15% of dry matter intake (DMI) and Mazuri Leafeater Primate Diet at 85% of DMI. The chemical composition of the diet (dry matter basis) was 25% crude protein, 34% neutral detergent fiber (NDF), and 22% acid detergent fiber (ADF) with a gross energy of 4.52 kcal/g. After a 6 week acclimation to the experimental diet, animals were placed in research caging. After a 7 day adjustment period, animals were dosed with chromium mordant and Co-EDTA as markers for digesta passage and all feed refusals and feces were collected at timed intervals for 7 days. Digestibility values, similar for both species, were approximately 65% for dry matter, crude protein, and energy, and 40% and 35% respectively, for NDF and ADF. Transit times (1718.5 hr) and mean retention times (3134 hr) were not significantly different between species, and there was no difference between the chromium mordant and Co-EDTA. Serum values for glucose, urea, and non-esterified fatty acids (NEFA) were obtained during four different time periods to monitor nutritional status. While there was no change in serum glucose, serum urea increased over time. The NEFAs increased across all four time periods for P. verreauxi and increased for the first three periods then decreased in the last period for P. tattersalli. Results obtained indicate no difference in digestibility nor digesta passage between species, and that both Propithecus species were similar to other post-gastric folivores. Am.

show abstract

Intake, digestibility, and passage of a commercially designed diet by two propithecus species

et al. 1999

View full text Add to dashboard Cite

The digestibility and passage of an experimental diet was used to compare the digestive physiology of two Propithecus species: P. verreauxi and P. tattersalli. Though both animals have a similar feeding ecology, the captive status of P. verreauxi is considered more stable than that of P. tat-tersalli. The test diet included a local tree species, Rhus copallina, at 15% of dry matter intake (DMI) and Mazuri Leafeater Primate Diet at 85% of DMI. The chemical composition of the diet (dry matter basis) was 25% crude protein, 34% neutral detergent fiber (NDF), and 22% acid detergent fiber (ADF) with a gross energy of 4.52 kcal/g. After a 6 week acclimation to the experimental diet, animals were placed in research caging. After a 7 day adjustment period, animals were dosed with chromium mordant and Co-EDTA as markers for digesta passage and all feed refusals and feces were collected at timed intervals for 7 days. Digestibility values, similar for both species, were approximately 65% for dry matter, crude protein, and energy, and 40% and 35% respectively, for NDF and ADF. Transit times (1718.5 hr) and mean retention times (3134 hr) were not significantly different between species, and there was no difference between the chromium mordant and Co-EDTA. Serum values for glucose , urea, and non-esterified fatty acids (NEFA) were obtained during four different time periods to monitor nutritional status. While there was no change in serum glucose, serum urea increased over time. The NEFAs increased across all four time periods for P. verreauxi and increased for the first three periods then decreased in the last period for P. tattersalli. Results obtained indicate no difference in digestibility nor digesta passage between species, and that both Propithecus species were similar to other post-gastric folivores. Am.

show abstract

The digestive strategy of the common marmoset, Callithrix jacchus

Cited by 65 publications

References 14 publications

Digestion in the common marmoset (Callithrix jacchus), a gummivore–frugivore

Digestion in the common marmoset (Callithrix jacchus), a gummivore–frugivore

Intake, digestibility, and passage of a commercially designed diet by two propithecus species

Intake, digestibility, and passage of a commercially designed diet by two propithecus species

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