Does feeding frequency, independent of total energy consumption, affect lizard digestive efficiency or growth?

K. T. Moeller, R. Elms, S. Sampson, M. L. Jackson, M. Seward, Dale Denardo

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Down-regulation of the digestive system between large meals is thought to afford energetic benefits to animals that feed infrequently. However, this idea has not been thoroughly tested. Thus, we assessed the realized benefits of infrequent feeding by examining how the timing of meal consumption influenced digestive efficiency and whole-body growth of juvenile Gila monsters, a binge-feeding lizard. All animals in our study received the same total energy intake for each feeding cycle, but meals were distributed differently over time among groups. One group had a 10-14-day period of down-regulation between meal sets while the other group had a constantly activated digestive system. The groups did not show differences in growth; however, differences in digestive efficiency for a specific meal indicate that feeding regime may have caused digestive adjustments (e.g. more efficient digestion) in one treatment group. Overall, our findings show that the energetic benefits of down-regulation may depend more on species, extent of digestive regulation, or duration of fasting than previously supposed.

Original languageEnglish (US)
Pages (from-to)225-230
Number of pages6
JournalJournal of Zoology
Volume296
Issue number3
DOIs
StatePublished - Jul 1 2015

Fingerprint

feeding frequency
meals (menu)
lizard
lizards
digestive system
energetics
fasting
animal
digestion
energy intake
energy consumption
regulation
duration
energy
animals

Keywords

  • Binge feeding
  • Digestive regulation
  • Down-regulation
  • Reptile

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Ecology, Evolution, Behavior and Systematics

Cite this

Does feeding frequency, independent of total energy consumption, affect lizard digestive efficiency or growth? / Moeller, K. T.; Elms, R.; Sampson, S.; Jackson, M. L.; Seward, M.; Denardo, Dale.

In: Journal of Zoology, Vol. 296, No. 3, 01.07.2015, p. 225-230.

Research output: Contribution to journalArticle

Moeller, K. T. ; Elms, R. ; Sampson, S. ; Jackson, M. L. ; Seward, M. ; Denardo, Dale. / Does feeding frequency, independent of total energy consumption, affect lizard digestive efficiency or growth?. In: Journal of Zoology. 2015 ; Vol. 296, No. 3. pp. 225-230.
@article{f486d00bb22e479ba2cb26241f4b313d,
title = "Does feeding frequency, independent of total energy consumption, affect lizard digestive efficiency or growth?",
abstract = "Down-regulation of the digestive system between large meals is thought to afford energetic benefits to animals that feed infrequently. However, this idea has not been thoroughly tested. Thus, we assessed the realized benefits of infrequent feeding by examining how the timing of meal consumption influenced digestive efficiency and whole-body growth of juvenile Gila monsters, a binge-feeding lizard. All animals in our study received the same total energy intake for each feeding cycle, but meals were distributed differently over time among groups. One group had a 10-14-day period of down-regulation between meal sets while the other group had a constantly activated digestive system. The groups did not show differences in growth; however, differences in digestive efficiency for a specific meal indicate that feeding regime may have caused digestive adjustments (e.g. more efficient digestion) in one treatment group. Overall, our findings show that the energetic benefits of down-regulation may depend more on species, extent of digestive regulation, or duration of fasting than previously supposed.",
keywords = "Binge feeding, Digestive regulation, Down-regulation, Reptile",
author = "Moeller, {K. T.} and R. Elms and S. Sampson and Jackson, {M. L.} and M. Seward and Dale Denardo",
year = "2015",
month = "7",
day = "1",
doi = "10.1111/jzo.12227",
language = "English (US)",
volume = "296",
pages = "225--230",
journal = "Environment and Development Economics",
issn = "1355-770X",
publisher = "Cambridge University Press",
number = "3",

}

TY - JOUR

T1 - Does feeding frequency, independent of total energy consumption, affect lizard digestive efficiency or growth?

AU - Moeller, K. T.

AU - Elms, R.

AU - Sampson, S.

AU - Jackson, M. L.

AU - Seward, M.

AU - Denardo, Dale

PY - 2015/7/1

Y1 - 2015/7/1

N2 - Down-regulation of the digestive system between large meals is thought to afford energetic benefits to animals that feed infrequently. However, this idea has not been thoroughly tested. Thus, we assessed the realized benefits of infrequent feeding by examining how the timing of meal consumption influenced digestive efficiency and whole-body growth of juvenile Gila monsters, a binge-feeding lizard. All animals in our study received the same total energy intake for each feeding cycle, but meals were distributed differently over time among groups. One group had a 10-14-day period of down-regulation between meal sets while the other group had a constantly activated digestive system. The groups did not show differences in growth; however, differences in digestive efficiency for a specific meal indicate that feeding regime may have caused digestive adjustments (e.g. more efficient digestion) in one treatment group. Overall, our findings show that the energetic benefits of down-regulation may depend more on species, extent of digestive regulation, or duration of fasting than previously supposed.

AB - Down-regulation of the digestive system between large meals is thought to afford energetic benefits to animals that feed infrequently. However, this idea has not been thoroughly tested. Thus, we assessed the realized benefits of infrequent feeding by examining how the timing of meal consumption influenced digestive efficiency and whole-body growth of juvenile Gila monsters, a binge-feeding lizard. All animals in our study received the same total energy intake for each feeding cycle, but meals were distributed differently over time among groups. One group had a 10-14-day period of down-regulation between meal sets while the other group had a constantly activated digestive system. The groups did not show differences in growth; however, differences in digestive efficiency for a specific meal indicate that feeding regime may have caused digestive adjustments (e.g. more efficient digestion) in one treatment group. Overall, our findings show that the energetic benefits of down-regulation may depend more on species, extent of digestive regulation, or duration of fasting than previously supposed.

KW - Binge feeding

KW - Digestive regulation

KW - Down-regulation

KW - Reptile

UR - http://www.scopus.com/inward/record.url?scp=84936184914&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84936184914&partnerID=8YFLogxK

U2 - 10.1111/jzo.12227

DO - 10.1111/jzo.12227

M3 - Article

VL - 296

SP - 225

EP - 230

JO - Environment and Development Economics

JF - Environment and Development Economics

SN - 1355-770X

IS - 3

ER -