Specific dynamic action, apparent assimilation efficiency, and digestive rate in an arboreal pitviper, Trimeresurus stejnegeri stejnegeri

Tein Shun Tsai, How Jing Lee, Ming Chung Tu

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The major aims of this study were to assess the effects of temperature (15-35°C) and meal size (less than 30% snake mass) on the metabolism and digestive physiology of Trimeresurus stejnegeri stejnegeri Schmidt, 1925 and to compare the results with those of terrestrial snakes. Specific dynamic action (SDA), peak VO2, and scope of peak VO2 increased with meal size. Temperature had little effect on SDA. With regression analysis, we found that baseline metabolic rates of T. s. stejnegeri were generally smaller than that for frequent feeders and larger than that for infrequent feeders. We generalized three types of SDA profiles among T. s. stejnegeri and terrestrial snakes (including frequent and infrequent feeders). Trimeresurus stejnegeri stejnegeri had a more shallow and extended profile of postprandial metabolism, which did not support our hypothesis that the pace of digestive metabolism of arboreal snakes is faster than that of terrestrial snakes. The apparent assimilation efficiency (range 0.698-0.884) was significantly lower at 15°C. At the preferred temperature (26.5-28.8°C) for a postprandial 50 g snake, the simulated ratios of four parameters (time to peak VO2, first defecation time, gastric digestion time, and final defecation time) to SDA duration approximated 0.2, 0.5-0.7, 0.7, and 1.1, respectively.

Original languageEnglish
Pages (from-to)1139-1151
Number of pages13
JournalCanadian Journal of Zoology
Volume86
Issue number10
DOIs
Publication statusPublished - 2008 Oct 1

Fingerprint

Trimeresurus
thermic effect of food
assimilation efficiency
snake
snakes
assimilation (physiology)
defecation
portion size
metabolism
digestive physiology
temperature
physiology
rate
digestion
regression analysis
stomach
duration

ASJC Scopus subject areas

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

Cite this

Specific dynamic action, apparent assimilation efficiency, and digestive rate in an arboreal pitviper, Trimeresurus stejnegeri stejnegeri. / Tsai, Tein Shun; Lee, How Jing; Tu, Ming Chung.

In: Canadian Journal of Zoology, Vol. 86, No. 10, 01.10.2008, p. 1139-1151.

Research output: Contribution to journalArticle

@article{e05eaa1be9b5479da89d92fba79f00a3,
title = "Specific dynamic action, apparent assimilation efficiency, and digestive rate in an arboreal pitviper, Trimeresurus stejnegeri stejnegeri",
abstract = "The major aims of this study were to assess the effects of temperature (15-35°C) and meal size (less than 30{\%} snake mass) on the metabolism and digestive physiology of Trimeresurus stejnegeri stejnegeri Schmidt, 1925 and to compare the results with those of terrestrial snakes. Specific dynamic action (SDA), peak VO2, and scope of peak VO2 increased with meal size. Temperature had little effect on SDA. With regression analysis, we found that baseline metabolic rates of T. s. stejnegeri were generally smaller than that for frequent feeders and larger than that for infrequent feeders. We generalized three types of SDA profiles among T. s. stejnegeri and terrestrial snakes (including frequent and infrequent feeders). Trimeresurus stejnegeri stejnegeri had a more shallow and extended profile of postprandial metabolism, which did not support our hypothesis that the pace of digestive metabolism of arboreal snakes is faster than that of terrestrial snakes. The apparent assimilation efficiency (range 0.698-0.884) was significantly lower at 15°C. At the preferred temperature (26.5-28.8°C) for a postprandial 50 g snake, the simulated ratios of four parameters (time to peak VO2, first defecation time, gastric digestion time, and final defecation time) to SDA duration approximated 0.2, 0.5-0.7, 0.7, and 1.1, respectively.",
author = "Tsai, {Tein Shun} and Lee, {How Jing} and Tu, {Ming Chung}",
year = "2008",
month = "10",
day = "1",
doi = "10.1139/Z08-090",
language = "English",
volume = "86",
pages = "1139--1151",
journal = "Canadian Journal of Zoology",
issn = "0008-4301",
publisher = "National Research Council of Canada",
number = "10",

}

TY - JOUR

T1 - Specific dynamic action, apparent assimilation efficiency, and digestive rate in an arboreal pitviper, Trimeresurus stejnegeri stejnegeri

AU - Tsai, Tein Shun

AU - Lee, How Jing

AU - Tu, Ming Chung

PY - 2008/10/1

Y1 - 2008/10/1

N2 - The major aims of this study were to assess the effects of temperature (15-35°C) and meal size (less than 30% snake mass) on the metabolism and digestive physiology of Trimeresurus stejnegeri stejnegeri Schmidt, 1925 and to compare the results with those of terrestrial snakes. Specific dynamic action (SDA), peak VO2, and scope of peak VO2 increased with meal size. Temperature had little effect on SDA. With regression analysis, we found that baseline metabolic rates of T. s. stejnegeri were generally smaller than that for frequent feeders and larger than that for infrequent feeders. We generalized three types of SDA profiles among T. s. stejnegeri and terrestrial snakes (including frequent and infrequent feeders). Trimeresurus stejnegeri stejnegeri had a more shallow and extended profile of postprandial metabolism, which did not support our hypothesis that the pace of digestive metabolism of arboreal snakes is faster than that of terrestrial snakes. The apparent assimilation efficiency (range 0.698-0.884) was significantly lower at 15°C. At the preferred temperature (26.5-28.8°C) for a postprandial 50 g snake, the simulated ratios of four parameters (time to peak VO2, first defecation time, gastric digestion time, and final defecation time) to SDA duration approximated 0.2, 0.5-0.7, 0.7, and 1.1, respectively.

AB - The major aims of this study were to assess the effects of temperature (15-35°C) and meal size (less than 30% snake mass) on the metabolism and digestive physiology of Trimeresurus stejnegeri stejnegeri Schmidt, 1925 and to compare the results with those of terrestrial snakes. Specific dynamic action (SDA), peak VO2, and scope of peak VO2 increased with meal size. Temperature had little effect on SDA. With regression analysis, we found that baseline metabolic rates of T. s. stejnegeri were generally smaller than that for frequent feeders and larger than that for infrequent feeders. We generalized three types of SDA profiles among T. s. stejnegeri and terrestrial snakes (including frequent and infrequent feeders). Trimeresurus stejnegeri stejnegeri had a more shallow and extended profile of postprandial metabolism, which did not support our hypothesis that the pace of digestive metabolism of arboreal snakes is faster than that of terrestrial snakes. The apparent assimilation efficiency (range 0.698-0.884) was significantly lower at 15°C. At the preferred temperature (26.5-28.8°C) for a postprandial 50 g snake, the simulated ratios of four parameters (time to peak VO2, first defecation time, gastric digestion time, and final defecation time) to SDA duration approximated 0.2, 0.5-0.7, 0.7, and 1.1, respectively.

UR - http://www.scopus.com/inward/record.url?scp=54349127640&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=54349127640&partnerID=8YFLogxK

U2 - 10.1139/Z08-090

DO - 10.1139/Z08-090

M3 - Article

AN - SCOPUS:54349127640

VL - 86

SP - 1139

EP - 1151

JO - Canadian Journal of Zoology

JF - Canadian Journal of Zoology

SN - 0008-4301

IS - 10

ER -