not meaning to burst the bubble of excitement over the lifetime production but the info is meaningless without comparison. Is this a 10%/20% improvement on say 1997 it is noticable that nearly all are by minus bulls and non were born after 1995 (bar Bos.June) so well in advance of GMI or the doom merchants rants on fertility. The true test will only come in time with the likes of Boskenna June and hopefully others but my view is forget fertility there are still hugh improvements in udder conformation to be made before worrying about calving index. If they haven't got the udder to last you wont get many reaching 5000 kg f&p.Management has far bigger impact on fert than any of us like to admit. coxy
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In 2007 there were 24 Guernsey cows that have bettered the Lifetime production standard of the Grand Diploma of Merit (GDM) which is set at 5000 kilos of Fat and Protein. The awards are made automatically by the computer system and a list is kept in the office but no longer published for "cost saving" reasons. At a time when dairy cow fertility is said to be in decline then these cows are deserving of greater recognition.
With 3 cows classified Excellent and 8 VG of the 17 Classified this would tend to support the theory that high classification ultimately supports high lifetime production. Two of these cows are daughters of GDM cows and Buckmotts Polyanthus 88 was the dam of Easby Iceman. It may be that we should introduce a further award as the trend is for cows to reach GDM in fewer lactations ( the youngest to date Boskenna June Ex 94 in six lactations).
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Thursday, 01 October 2009 20:16
mike cox
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