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Lupinosis and reproduction reduce the wool growth of Merino ewes
Journal article   Peer reviewed

Lupinosis and reproduction reduce the wool growth of Merino ewes

A.L. Barnes, K.P. Croker, J.G. Allen and N.D. Costa
Australian Journal of Experimental Agriculture, Vol.37(5), pp.515-521
1997
DOI: https://doi.org/10.1071/EA97004
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Abstract

Lupinosis was induced in Merino ewes by subcutaneous injections of phomopsins. Liver damage and impairment of liver function was measured by increases in plasma activities of glutamate dehydrogenase and gamma glutamyl transferase, plasma concentrations of bilirubin, and plasma clearance of bromosulfthalein. The wool growth of the ewes during and after exposure to phomopsins at different periods relative to mating was measured, and the impact of lupinosis on annual wool production assessed. Phomopsin administration decreased the length of staple grown during, and for at least 6 weeks after, exposure to phomopsins. Mean fibre diameter of wool grown during this time was also reduced. Annual wool production of the ewes was affected by exposure to phomopsins, with effects noted on fleece weight, yield, fibre diameter, strength and position of break. These effects were minor and varied between experiments. The adverse effects of reproduction on annual wool production were more significant than those of phomopsins.

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1 Times Cited - Web of Science

InCites Highlights

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Collaboration types
Domestic collaboration
Citation topics
3 Agriculture, Environment & Ecology
3.51 Dairy & Animal Sciences
3.51.1908 Livestock Fiber Traits
Web Of Science research areas
Agriculture, Multidisciplinary
ESI research areas
Agricultural Sciences
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