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Key traits being overlooked

Sheep producers backcrossing away from the Dohne breed to Poll Merinos with the perception of improving wool quality have been urged to consider their gross margins.

December 10, 2013 4:09am

Richard Koschitzke has increased his wool value and surplus ewe sales and turns lambs off earlier by introducing Dohnes into his flock.


Sheep producers backcrossing away from the Dohne breed to Poll Merinos with the perception of improving wool quality have been urged to consider their gross margins.

Australian Dohne Breeders Association vice-president John Nadin said the backcrossing trend emerging from this year’s spring ram sales was a matter of growers and agents misunderstanding the breed’s role in the Australian sheep industry.

Mr Nadin said the profit drivers of fertility, lamb growth rates, increased surplus sheep sales and carrying capacity were being overlooked in the pursuit of increased fleece weight.

‘‘We have got a few in the industry trying to turn the Dohne into a Merino and that’s not its role,’’ he said.

‘‘The Dohne is a strain of Merino, just like the Peppin, Saxon and Spanish — they all have a place.’’

Mr Nadin said the increased weaning percentage and less dry ewes put the Dohne on par with Merinos in terms of wool cut and streets ahead on carcase value, growth rates and doing ability.

‘‘What is hard to measure is the Dohne’s doing ability, ease of management, ability to finish quickly, perform and grow into a productive animal after a hard start,’’ he said.

Southern NSW mixed farmers Richard and Lesley Koschitzke switched from first-cross ewes to a self-replacing Dohne flock three years ago.

Mr Koschitzke, of Brocklesby, is impressed with the robustness of the Dohne ewe, and he has doubled the income from his wool clip.

His 10-month-old Dohne ewe lambs cut 3.5kg of 19.6 micron wool with a length of 82mm, staple strength of 31Newtons/kilotex and value of $22.56/head.

This year, Mr Koschitzke grain-fed 90 F3 Dohne wether lambs and cull ewes from 16 to 22kg carcase weight, selling them through the saleyards for $90 ($8 skin value). The lambs had cut 3.5kg of wool valued at $22.

He sold dry cast-for-age ewes for $90.

‘‘The Dohne ewe offers me many more options, with the gross margins greater than cropping in the drier seasons,’’ Mr Koschitzke said.

Australian WoolNetwork senior wool and sheep specialist Michael Crooks confirmed instances of backcrossing among commercial producers in his territory of south-eastern South Australia.

Mr Crooks, based at Portland, said Dohne ram selection had improved in recent years resulting in increased wool quality, coupled with higher conception and lambing rates.

He said the biggest gains had been for crossbred prime lamb flocks using Dohne rams, with wool clip value jumping from $600 to $1000 a bale on average.

South African sheep and wool consultant Cameron McMaster said inferior wool quality and style in the Dohne breed was a myth.

Mr McMaster said the foundation flock had been based on careful selection for fertility, meat and Merino wool traits.

He has branded the backcrossing trend as a ‘‘retrogressive step’’, saying South African woolgrowers had trod the same path with negative consequences.

Mr McMaster said the producers rapidly lost much of the gain they had made in terms of reproduction and growth rate.

Kim Woods

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