The effect of salt gland removal on cloacal ion and water excretion in the growing kittiwake, Rissa tridactyla
The supraorbital salt glands were surgically removed from five nestling kittiwakes, Rissa tridactyla, which, with four sham-operated birds, were reared in individual cages for 29 days on a diet of weighed fish. The daily cloacal excreta were weighed and analyzed for Na + , K + , Cl − , and water. Sa...
Published in: | Canadian Journal of Zoology |
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Canadian Science Publishing
1972
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Online Access: | http://dx.doi.org/10.1139/z72-083 http://www.nrcresearchpress.com/doi/pdf/10.1139/z72-083 |
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crcansciencepubl:10.1139/z72-083 2023-12-17T10:49:17+01:00 The effect of salt gland removal on cloacal ion and water excretion in the growing kittiwake, Rissa tridactyla Hughes, Maryanne Robinson 1972 http://dx.doi.org/10.1139/z72-083 http://www.nrcresearchpress.com/doi/pdf/10.1139/z72-083 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 50, issue 5, page 603-610 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1972 crcansciencepubl https://doi.org/10.1139/z72-083 2023-11-19T13:38:48Z The supraorbital salt glands were surgically removed from five nestling kittiwakes, Rissa tridactyla, which, with four sham-operated birds, were reared in individual cages for 29 days on a diet of weighed fish. The daily cloacal excreta were weighed and analyzed for Na + , K + , Cl − , and water. Salt gland removal did not greatly affect cloacal ion excretion. In both groups cloacal fluid contained 30% of the ingested water and 20–50% of the ingested ions. The cloacal fluid of control birds was always hypotonic to the food, that of glandless birds hypertonic. In all samples the solid excreta (mainly uric acid) comprised 10% of the weight, but contained 25–50% of the cloacally excreted Na + and Cl − and up to 60% of the K + . Fecal material might account for 10% of the ingested NaCl. Since cloacal excreta contained only one-half of the ingested ion load, extrarenal salt excretion may still have existed in the kittiwakes lacking supraorbital salt glands. These birds did not secrete after acute salt loading, but the plastic cage liners of these birds had nearly as much NaCl on them as did those of control birds, suggesting secretion from the head region. The tears were approximately isotonic to the plasma. Salt gland removal did not affect adrenal, lacrymal, or Hardenian glands, kidney, or body weight, but glandless birds had slightly larger hearts. Article in Journal/Newspaper rissa tridactyla Canadian Science Publishing (via Crossref) Canadian Journal of Zoology 50 5 603 610 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Hughes, Maryanne Robinson The effect of salt gland removal on cloacal ion and water excretion in the growing kittiwake, Rissa tridactyla |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
The supraorbital salt glands were surgically removed from five nestling kittiwakes, Rissa tridactyla, which, with four sham-operated birds, were reared in individual cages for 29 days on a diet of weighed fish. The daily cloacal excreta were weighed and analyzed for Na + , K + , Cl − , and water. Salt gland removal did not greatly affect cloacal ion excretion. In both groups cloacal fluid contained 30% of the ingested water and 20–50% of the ingested ions. The cloacal fluid of control birds was always hypotonic to the food, that of glandless birds hypertonic. In all samples the solid excreta (mainly uric acid) comprised 10% of the weight, but contained 25–50% of the cloacally excreted Na + and Cl − and up to 60% of the K + . Fecal material might account for 10% of the ingested NaCl. Since cloacal excreta contained only one-half of the ingested ion load, extrarenal salt excretion may still have existed in the kittiwakes lacking supraorbital salt glands. These birds did not secrete after acute salt loading, but the plastic cage liners of these birds had nearly as much NaCl on them as did those of control birds, suggesting secretion from the head region. The tears were approximately isotonic to the plasma. Salt gland removal did not affect adrenal, lacrymal, or Hardenian glands, kidney, or body weight, but glandless birds had slightly larger hearts. |
format |
Article in Journal/Newspaper |
author |
Hughes, Maryanne Robinson |
author_facet |
Hughes, Maryanne Robinson |
author_sort |
Hughes, Maryanne Robinson |
title |
The effect of salt gland removal on cloacal ion and water excretion in the growing kittiwake, Rissa tridactyla |
title_short |
The effect of salt gland removal on cloacal ion and water excretion in the growing kittiwake, Rissa tridactyla |
title_full |
The effect of salt gland removal on cloacal ion and water excretion in the growing kittiwake, Rissa tridactyla |
title_fullStr |
The effect of salt gland removal on cloacal ion and water excretion in the growing kittiwake, Rissa tridactyla |
title_full_unstemmed |
The effect of salt gland removal on cloacal ion and water excretion in the growing kittiwake, Rissa tridactyla |
title_sort |
effect of salt gland removal on cloacal ion and water excretion in the growing kittiwake, rissa tridactyla |
publisher |
Canadian Science Publishing |
publishDate |
1972 |
url |
http://dx.doi.org/10.1139/z72-083 http://www.nrcresearchpress.com/doi/pdf/10.1139/z72-083 |
genre |
rissa tridactyla |
genre_facet |
rissa tridactyla |
op_source |
Canadian Journal of Zoology volume 50, issue 5, page 603-610 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z72-083 |
container_title |
Canadian Journal of Zoology |
container_volume |
50 |
container_issue |
5 |
container_start_page |
603 |
op_container_end_page |
610 |
_version_ |
1785573681390419968 |