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putting a $ on agression
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<blockquote data-quote="CattleGuy" data-source="post: 195541" data-attributes="member: 3428"><p>I just read a short article which puts a value on aggressiveness, but in the opposite direction. From the March '06 issue of SimmTalk magazine.</p><p></p><p><strong>Post-Partum Behavior Studied</strong></p><p></p><p>Researchers in Arkansas found that calf survivability is directly related to the aggressiveness of their mothers. In a study of more than 5000 births from 142 sires over 25 years, cows were classified according to their aggressiveness. "Very aggressive" cows had a calf survivability at 93%, while "very attentive" cows were at 86%; "indifferent" cows at 77%; and "apathetic" cows at just 60%. Five breeds were studies with Angus cows being ranked as the most aggressive, followed in order by Charolais, Polled Hereford, Hereford, and Red Poll.</p><p></p><p>Hmm, all the numbers seem low to me but aside from that I have always thought the mean old hags tend to be better mommas. I guess the challenge is how do we raise a cow that is docile enough to be manageable but aggressive enough to really take care of her calf? Do the two neccessarily have to be competing, or exclusive traits?</p></blockquote><p></p>
[QUOTE="CattleGuy, post: 195541, member: 3428"] I just read a short article which puts a value on aggressiveness, but in the opposite direction. From the March '06 issue of SimmTalk magazine. [b]Post-Partum Behavior Studied[/b] Researchers in Arkansas found that calf survivability is directly related to the aggressiveness of their mothers. In a study of more than 5000 births from 142 sires over 25 years, cows were classified according to their aggressiveness. "Very aggressive" cows had a calf survivability at 93%, while "very attentive" cows were at 86%; "indifferent" cows at 77%; and "apathetic" cows at just 60%. Five breeds were studies with Angus cows being ranked as the most aggressive, followed in order by Charolais, Polled Hereford, Hereford, and Red Poll. Hmm, all the numbers seem low to me but aside from that I have always thought the mean old hags tend to be better mommas. I guess the challenge is how do we raise a cow that is docile enough to be manageable but aggressive enough to really take care of her calf? Do the two neccessarily have to be competing, or exclusive traits? [/QUOTE]
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