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Ewe mature weight
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<blockquote data-quote="Global ovine" data-source="post: 4360290" data-attributes="member: 493"><p>Increasing capital stock numbers over the same area. That's more ewes and their replacements.</p><p></p><p></p><p></p><p></p><p></p><p></p><p>Where stocking rate has increased, the animals with superior genetics have been able to maintain productivity levels, this is an increase in efficiency. This has certainly been the NZ experience where lamb output has almost doubled per ewe mainly due to increased lambing/weaning % (even though individual lamb weights at weaning have been rather constant) and improved lamb rearing skills, particularly post weaning, as greater dependency now goes into pasture management.</p><p></p><p>AHDB reports have not shown a similar trend in the UK. Also a greater proportion of the UK flock is on unimproved upland pasture, much with environmental constraints thereby keeping productivity on a flatter plane. As for "Boney heids", these may not affect output, but certainly add to the input costs.</p><p></p><p>There are many reasons why this ratio appears constant across numerous sheep growing countries, all with their own peculiar reasons. However sheep that dramatically fall outside this trend are extremely valuable animals, but will never be identified without a recording programme that accurately measures the difference. This would require an upper level analysis of existing data on the data bases of programmes such as Signet and SIL etc. Money well spent providing the commercial farmers within that country recognise this advantage and are willing to support breeders pursuing that direction.</p></blockquote><p></p>
[QUOTE="Global ovine, post: 4360290, member: 493"] Increasing capital stock numbers over the same area. That's more ewes and their replacements. Where stocking rate has increased, the animals with superior genetics have been able to maintain productivity levels, this is an increase in efficiency. This has certainly been the NZ experience where lamb output has almost doubled per ewe mainly due to increased lambing/weaning % (even though individual lamb weights at weaning have been rather constant) and improved lamb rearing skills, particularly post weaning, as greater dependency now goes into pasture management. AHDB reports have not shown a similar trend in the UK. Also a greater proportion of the UK flock is on unimproved upland pasture, much with environmental constraints thereby keeping productivity on a flatter plane. As for "Boney heids", these may not affect output, but certainly add to the input costs. There are many reasons why this ratio appears constant across numerous sheep growing countries, all with their own peculiar reasons. However sheep that dramatically fall outside this trend are extremely valuable animals, but will never be identified without a recording programme that accurately measures the difference. This would require an upper level analysis of existing data on the data bases of programmes such as Signet and SIL etc. Money well spent providing the commercial farmers within that country recognise this advantage and are willing to support breeders pursuing that direction. [/QUOTE]
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