Utilization of copper during lactation and neonatal development in muskoxen
Post-natal availability of copper may affect survival of arctic ruminants such as muskoxen (Ovibos moschatus), because neonates must develop rapidly before their first winter. We hypothesized that supplemental injections of Cu for lactating females would increase Cu in milk and in circulation within...
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Language: | English |
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2002
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Online Access: | http://dx.doi.org/10.1139/z02-139 http://www.nrcresearchpress.com/doi/pdf/10.1139/z02-139 |
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crcansciencepubl:10.1139/z02-139 2024-03-24T08:59:56+00:00 Utilization of copper during lactation and neonatal development in muskoxen Rombach, Emmajean P Barboza, Perry S Blake, John E 2002 http://dx.doi.org/10.1139/z02-139 http://www.nrcresearchpress.com/doi/pdf/10.1139/z02-139 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 80, issue 8, page 1460-1469 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 2002 crcansciencepubl https://doi.org/10.1139/z02-139 2024-02-26T15:23:03Z Post-natal availability of copper may affect survival of arctic ruminants such as muskoxen (Ovibos moschatus), because neonates must develop rapidly before their first winter. We hypothesized that supplemental injections of Cu for lactating females would increase Cu in milk and in circulation within their offspring. Milk was low in Cu (<4 μg Cu·g 1 dry matter) but was not affected by Cu supplementation through peak lactation. Muskoxen are born with high concentrations of Cu in the liver but low activity of the Cu enzyme ceruloplasmin in serum. Levels of serum ceruloplasmin and Cu increase as neonates mature, reaching adult levels in late summer, but this transition coincides with poor growth and diarrhea. Reserves of Cu established in utero are likely depleted as metabolic processes mature and as young make the transition from a milk-based to a forage-based diet. Therefore, availability of trace minerals in utero and in autumn forages may influence the growth, immune function, and survival of young muskoxen in their first year. Article in Journal/Newspaper Arctic ovibos moschatus Canadian Science Publishing Arctic Canadian Journal of Zoology 80 8 1460 1469 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
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 Rombach, Emmajean P Barboza, Perry S Blake, John E Utilization of copper during lactation and neonatal development in muskoxen |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Post-natal availability of copper may affect survival of arctic ruminants such as muskoxen (Ovibos moschatus), because neonates must develop rapidly before their first winter. We hypothesized that supplemental injections of Cu for lactating females would increase Cu in milk and in circulation within their offspring. Milk was low in Cu (<4 μg Cu·g 1 dry matter) but was not affected by Cu supplementation through peak lactation. Muskoxen are born with high concentrations of Cu in the liver but low activity of the Cu enzyme ceruloplasmin in serum. Levels of serum ceruloplasmin and Cu increase as neonates mature, reaching adult levels in late summer, but this transition coincides with poor growth and diarrhea. Reserves of Cu established in utero are likely depleted as metabolic processes mature and as young make the transition from a milk-based to a forage-based diet. Therefore, availability of trace minerals in utero and in autumn forages may influence the growth, immune function, and survival of young muskoxen in their first year. |
format |
Article in Journal/Newspaper |
author |
Rombach, Emmajean P Barboza, Perry S Blake, John E |
author_facet |
Rombach, Emmajean P Barboza, Perry S Blake, John E |
author_sort |
Rombach, Emmajean P |
title |
Utilization of copper during lactation and neonatal development in muskoxen |
title_short |
Utilization of copper during lactation and neonatal development in muskoxen |
title_full |
Utilization of copper during lactation and neonatal development in muskoxen |
title_fullStr |
Utilization of copper during lactation and neonatal development in muskoxen |
title_full_unstemmed |
Utilization of copper during lactation and neonatal development in muskoxen |
title_sort |
utilization of copper during lactation and neonatal development in muskoxen |
publisher |
Canadian Science Publishing |
publishDate |
2002 |
url |
http://dx.doi.org/10.1139/z02-139 http://www.nrcresearchpress.com/doi/pdf/10.1139/z02-139 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic ovibos moschatus |
genre_facet |
Arctic ovibos moschatus |
op_source |
Canadian Journal of Zoology volume 80, issue 8, page 1460-1469 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z02-139 |
container_title |
Canadian Journal of Zoology |
container_volume |
80 |
container_issue |
8 |
container_start_page |
1460 |
op_container_end_page |
1469 |
_version_ |
1794399843730325504 |