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Is small cow size a myth?
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<blockquote data-quote="djinwa" data-source="post: 1116234" data-attributes="member: 8265"><p>A lot of people say certain cows are very efficient because they have good body condition. But how do you know if it didn't take a lot of feed to do that? Does anyone measure individual cow's intake? Do you feed cows individually so some don't take more than their share? The poor doers might be the light eaters, and the easy keepers might be the big eaters. So easy keepers might just be big eaters which isn't efficiency.</p><p></p><p>Efficiency is good condition and production on less feed.</p><p></p><p></p><p>Neither is calf size a good measure of efficiency. If a cow weans a 20% heavier calf, but eats 30% more to do it, that is not efficient.</p><p></p><p>Anyway, if you really want to measure efficiency, you have to do what this researcher is doing:</p><p></p><p><a href="https://www.youtube.com/watch?v=_6hSQMz8hyo" target="_blank">https://www.youtube.com/watch?v=_6hSQMz8hyo</a></p></blockquote><p></p>
[QUOTE="djinwa, post: 1116234, member: 8265"] A lot of people say certain cows are very efficient because they have good body condition. But how do you know if it didn't take a lot of feed to do that? Does anyone measure individual cow's intake? Do you feed cows individually so some don't take more than their share? The poor doers might be the light eaters, and the easy keepers might be the big eaters. So easy keepers might just be big eaters which isn't efficiency. Efficiency is good condition and production on less feed. Neither is calf size a good measure of efficiency. If a cow weans a 20% heavier calf, but eats 30% more to do it, that is not efficient. Anyway, if you really want to measure efficiency, you have to do what this researcher is doing: [url=https://www.youtube.com/watch?v=_6hSQMz8hyo]https://www.youtube.com/watch?v=_6hSQMz8hyo[/url] [/QUOTE]
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