Module 10: Wean more lambs
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Introduction
Introduction1 quiz -
Wean more lambsThe importance of timing
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Managing ewes for joining
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Managing rams for joining
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Length of joining
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Manage ewes during pregnancy to improve lamb survival
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Minimising ewe stress
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Important principles to increase lamb survival
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Selection of lambing paddocks
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Manage weaners for lifetime productivity
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Age at weaning
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Prepare your ewes for next joining
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Genetic selection for reproductive performance1 quiz
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SummaryConclusion1 quiz
Management of lambs after weaning has an important influence on reducing post-weaning mortality and increasing lifetime productivity and profitability. Three key management aspects affect weaner productivity:
- Weaners need to reach target weaning weight (45% of standard reference weight) and keep growing to ensure highest survival rates.
- Access to quality feed to achieve growth targets and meet market specifications.
- Ewe weaners need to reach growth targets after weaning to achieve satisfactory reproduction performance as maiden ewes and throughout their lifetime.
There is a strong association between post-weaning survival, liveweight and growth rate. Small increases in weaning weight make a profound difference to weaner survival. The close association between growth rate, liveweight and mortality risk means supplementary feeding is often a cost-effective option for weaners. Pay special attention to weaner health, such as vaccination, drenching and flystrike prevention.
Early selection of paddocks is a critical component of managing lambs immediately after weaning. Ideal weaning paddocks feature high feed quality, low grass seed infestation, low worm risk and high-quality stock water.