Download
1 / 6
60 likes | 177 Views
Castle Milk Moorit Breeding Programme. May 2007 Update. Very early days but still good progress. With your help we have a improved the data available to us for decision making We have wide-spread awareness by members of the actions they could take to be part of the programme
E N D
Castle Milk Moorit Breeding Programme May 2007 Update
Very early days but still good progress • With your help we have a improved the data available to us for decision making • We have wide-spread awareness by members of the actions they could take to be part of the programme • We have tangible evidence of people considering genetic line when choosing rams to keep/buy • Highlights so far • Increased the number of sheep with ‘significant’ line 1 genetics from 139 to 167 (20%) • Increased the number of sheep with ‘significant’ line 2 genetics from 235 to 253 (7.6%) • Increased the number of sheep with ‘significant’ line 3 genetics from 249 to 276 (10.8%) • Maintained or enhanced the overall percentage of Lines 1, 2 and 3 in the overall flock ie we have stopped the decline • We need to work on • Continuing to preserve the male lines • Where possible ensure the preserved male lines are matched to females with the same genetic lines
June 2006 vs May 2007 • All data assumes: • Birth notified animals born over 4 years ago that have not been registered are dead or permanently non-breeding • Castrates have been excluded from all figures • Animals over 10 years old are non-breeding • A review of current data shows that out of 130 ewes over 10 years shown as alive in the flock book only 5 had lambs registered in 2006. • The original analysis data was checked and amended to ensure it used the same principles (it assumed animals over 10 years were dead but did include older birth notified animals) • 2007 Data includes all animals notified/registered up to 1 May and does include some 2007 lambs. • ‘Significant‘ is: • Greater than 0.05% line 1 genetics • Greater than 1% line 2 genetics • Greater than 2% line 3 genetics
Ram Data Number of significant rams as % of total ram flock Number of significant rams vs ‘the rest’ % of line genetics in the total ram flock We have increased the absolute number of genetically significant rams in all 3 lines and increased the % of rams in the flock carrying significant line 1 genetics but the overall % of these lines in the flock is still very small, but with both line 2 and 3 improving.
Ewe data Number of significant ewes as % of total ewe flock Number of significant ewes vs ‘the rest’ % of line genetics in the total ewe flock The absolute number of genetically significant ewes has increased only slightly and as a % of the total ewe flock has fallen. This may be due to significant ewes becoming non-breeding as they age, an effect that is less pronounced in rams as we have much fewer 9+ year old rams still alive. Overall the total flock % is holding steady inspite of these loses and a large increase in ewe numbers (+362)
Total flock data (2104 sheep as at 1/5/07) Number of significant sheep as % of total flock Number of significant sheep vs ‘the rest’ % of line genetics in the total flock The absolute number of genetically significant sheep has increased overall but as a % of the total flock has fallen because of the ewes. Though due to the efforts to preserve more of the significant rams the overall total flock % is holding steady and for line 3 increasing.
