Biochemical adaptation of camelids [Camelidae] during periods where feed is withheld

Wensvoort, J.; Kyle, D.J.; Oerskov, E.R.; Bourke, D.A.

Biochemical adaptation of camelids [Camelidae] during periods where feed is withheld

2001

Wensvoort, J. (P.O.Box 9220, Dubai (United Arab Emirates)) | Kyle, D.J. | Oerskov, E.R. | Bourke, D.A.

Biochemical changes during fasting or the withholding of feed for 5 day were studied in serum of camelids (dromedary camel, llama) and ruminants (sheep, steers). Camels maintained low levels of beta-hydroxybutyrate (BHB) and high levels of glucose but showed some increased levels of non-esterified fatty acid (NEFA) and urea when fasting. Sheep and steers showed a rise in serum BHB and much higher increases of NEFA than camels and llamas. Sheep showed decreased serum glucose. The llama showed some increase in BHB but NEFA was lower than the other three species. The results indicate that camelids have a unique ability to control lipolytic and gluconeogenic activity to prevent or postpone the state of ketosis. Understanding and manipulation of these metabolic mechanisms in cattle and sheep could have great benefit to the livestock industry.

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AGROVOC Keywords

acide gras adaptation biochemical reactions blood boeuf buey bullocks cetose cetosis control methods dromadaire dromedaries dromedarios dubai escocia fatty acids fonction physiologique glucosa glucose inanition ketosis lama llama llamas metabolism metabolisme metabolismo ovin ovinos physiological functions reindeer renne reno sang sangre scotland sheep starvation underfeeding

Bibliographic information

Published in

Rangifer (Norway) | Research, Management and Husbandry of Reindeer and other Northern Ungulates

Volume 21 Issue 1 ISSN 0333-256X

Pagination

pp. 45-48

Other Subjects

Sous alimentation; Adaptacion; Hipoalimentacion; Funcion fisiologica; Inanicion; Reacciones bioquimicas; Acidos grasos; Methode de lutte; Metodos de control; Doubai; Reaction biochimique; Ecosse

Language

English

Note

Summary (En)

4 figures; 15 ref.

Type

Summary

In AGRIS since: 2001-08-15

Format: AGRIS AP

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Biochemical adaptation of camelids [Camelidae] during periods where feed is withheld

2001

AGROVOC Keywords

Bibliographic information