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Histochemical and enzymatic differences in skeletal muscle from Svalbard reindeer during the summer and winter

Kiessling, Anders and Kiessling, Karl-Heinz and Nilssen, K and Andersson, IL (1986). Histochemical and enzymatic differences in skeletal muscle from Svalbard reindeer during the summer and winter. Rangifer. 6, 2-8
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Abstract

Enzyme activities and fibre properties in four muscles from Svalbard reindeer, collected during the summer, have been compared with corresponding muscles during the winter. In two muscles, gluteobiceps and semimembranosus, oxidative capacity is higher in winter than in summer; in the other two muscles, semitendinosus and longissimus dorsi, there is no difference with time of the year. The capacity to oxidize fatty acids is low in winter compared with summer, especially in semitendinosus and longissimus. These changes are similar in both sexes. Histochemical studies of the three main fibre types, I (BetaR), HA (°cR) and IIB (aW), from the four muscles show that in male reindeers the muscle fibres are narrower at the end of the winter season than during the summer. The decrease of muscle tissue amounts to about one third of the total volume (33%), of which I accounts for 5%, IIA for 2% and IIB for 26%. The results indicate that the Svalbard reindeer use lean tissue in general, and IIB fibres in particular, in order to survive the hostile arctic winter period at Svalbard.

Authors/Creators:Kiessling, Anders and Kiessling, Karl-Heinz and Nilssen, K and Andersson, IL
Title:Histochemical and enzymatic differences in skeletal muscle from Svalbard reindeer during the summer and winter
Series/Journal:Rangifer (0333-256X)
Year of publishing :1986
Volume:6
Page range:2-8
Number of Pages:6
Publisher:Swedish University of Agricultural Sciences, Dept. of Animal Nutrition and Management, Reindeer Husbandry Unit
ISSN:0333-256X
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Zoology
Agrovoc terms:reindeer, wintering, muscle fibres, enzymes, starvation
Keywords:Svalbard reindeer, starvation, muscle fibres, muscle enzyme activity
URN:NBN:urn:nbn:se:slu:epsilon-e-4902
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-4902
ID Code:15475
Faculty:VH - Faculty of Veterinary Medicine and Animal Science
Department:(VH) > Institutionen för husdjurens utfodring och vård
Deposited By: SLUpub Connector
Deposited On:28 May 2018 10:14
Metadata Last Modified:28 May 2018 10:15

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