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cow longevity
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<blockquote data-quote="1wlimo" data-source="post: 839083" data-attributes="member: 16646"><p>Is it that longevity has been lost in breeding that cows or is it that we are now feeding cows differently and they can ot cope as well on the different feed?</p><p></p><p>I say this because the herd I have been looking after was aimed at bull sales. The heifers selected for WW, YW, etc and on a silage based winter diet a poor reprductive performance and poor calf growth due to low milk, and a high cull rate. Last winter no silage, just hay and green feed and an overall better performance, much improved milk and calf growth.</p><p></p><p>Simularly in dairy when a high grain diet was fed they burnt out cows very rapidly, compared to herds with a high forage intake. </p><p></p><p>I am willing to acept my thoughts on this a wrong, just a thought.</p></blockquote><p></p>
[QUOTE="1wlimo, post: 839083, member: 16646"] Is it that longevity has been lost in breeding that cows or is it that we are now feeding cows differently and they can ot cope as well on the different feed? I say this because the herd I have been looking after was aimed at bull sales. The heifers selected for WW, YW, etc and on a silage based winter diet a poor reprductive performance and poor calf growth due to low milk, and a high cull rate. Last winter no silage, just hay and green feed and an overall better performance, much improved milk and calf growth. Simularly in dairy when a high grain diet was fed they burnt out cows very rapidly, compared to herds with a high forage intake. I am willing to acept my thoughts on this a wrong, just a thought. [/QUOTE]
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