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Recording replacements
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<blockquote data-quote="Joe" data-source="post: 528362" data-attributes="member: 177"><p>I started recording my replacement ewe lambs this year, previous two years I'd colour tagged according to single, twin, and triplet. Last year I picked bunch of my perceived (start somewhere) best Mayo Mules and let them our with Lleyn rams. All lambs were EID tagged at birth including male lambs and all were recorded for ease of lambing, number of lambs, survival to 8 weeks, 8 week weight and weaning weight. My calcs for a homemade simple EBV was then worked out weightings as 25%, 10%, 25%, 25% & 15% for above categories.</p><p>Bit surprised with the results when calculated, starting with an EBV average of 100 have ewe lambs ranging from 35 to 150 on my scale majority are in 60 to 105 range though. Question is are my weightings and categories fair or slightly unbalanced and need to be adjusted? I would think the final numbers are irrelevant in difference as giving the best lambs and showing improvement is the aim??</p><p> </p><p>slightly different note had a farm walk yesterday and gave my dwg figure for the above Lleyns at 280gms, others were surprised and said it would excellent for a terminal sired lamb. I would have thought 280gms would be ok for Lleyn cross mules but not for terminal sired lambs as they said?</p></blockquote><p></p>
[QUOTE="Joe, post: 528362, member: 177"] I started recording my replacement ewe lambs this year, previous two years I'd colour tagged according to single, twin, and triplet. Last year I picked bunch of my perceived (start somewhere) best Mayo Mules and let them our with Lleyn rams. All lambs were EID tagged at birth including male lambs and all were recorded for ease of lambing, number of lambs, survival to 8 weeks, 8 week weight and weaning weight. My calcs for a homemade simple EBV was then worked out weightings as 25%, 10%, 25%, 25% & 15% for above categories. Bit surprised with the results when calculated, starting with an EBV average of 100 have ewe lambs ranging from 35 to 150 on my scale majority are in 60 to 105 range though. Question is are my weightings and categories fair or slightly unbalanced and need to be adjusted? I would think the final numbers are irrelevant in difference as giving the best lambs and showing improvement is the aim?? slightly different note had a farm walk yesterday and gave my dwg figure for the above Lleyns at 280gms, others were surprised and said it would excellent for a terminal sired lamb. I would have thought 280gms would be ok for Lleyn cross mules but not for terminal sired lambs as they said? [/QUOTE]
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Recording replacements
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