Foetal-Maternal Blood Respiratory Properties of an Ovoviviparous Snake the Cottonmouth, Agkistrodon Piscivorus-Reference-Cited by-同舟云学术

Foetal-Maternal Blood Respiratory Properties of an Ovoviviparous Snake the Cottonmouth, Agkistrodon Piscivorus

Published:1984-01-01 Issue:1 Volume:108 Page:247-255
ISSN:1477-9145
Container-title:Journal of Experimental Biology
language:en
Short-container-title:

Author:

BIRCHARD GEOFFREY F.¹,BLACK CRAIG P.¹,SCHUETT GORDON W.²,BLACK VIRGINIA¹

Affiliation:

1. Department of Biology, University of Toledo Toledo, Ohio 43606, U.S.A. and Department of Pediatrics, Wayne State University Medical School Detroit, MI 48201, U.S.A.

2. Department of Biology, University of Toledo Toledo, Ohio 43606, U.S.A. and Department of Pediatrics, Wayne State University Medical School Detroit, MI 48201, U.S.A.; Department of Biology, Central Michigan University, Mt. Pleasant, MI 48859, U.S.A.

Abstract

The respiratory properties of maternal, foetal and juvenile whole blood were studied in the ovoviviparous snake, Agkistrodon piscivorus. Haematocrit, haemoglobin concentration, O2 capacity, Bohr effect and Hill coefficients were not significantly different in foetal and maternal blood and were similar to values previously reported from snakes. A significant difference in foetal-maternal blood P50 (foetal 19.5, maternal 48.8) was found. Nucleoside triphosphate (NTP) levels were lower in foetal than in maternal and juvenile snakes. The foetal-maternal difference in P50 and NTP levels disappeared soon after birth (juvenile P50 45.5). Starch gel electrophoresis revealed no difference in foetal and maternal haemoglobins. We suggest that the foetal-maternal shift in blood oxygen affinity is modulated directly and/or indirectly by NTP levels. Note:

Publisher

The Company of Biologists

Subject

Insect Science,Molecular Biology,Animal Science and Zoology,Aquatic Science,Physiology,Ecology, Evolution, Behavior and Systematics

Link

http://journals.biologists.com/jeb/article-pdf/108/1/247/1224918/247.pdf

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