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Cattle trends- Black to Red?
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<blockquote data-quote="TexasBred" data-source="post: 966965" data-attributes="member: 6897"><p>3way, it's pretty common knowledge that stress in cattle can begin at temps 77-78 degrees but what degree of stress is it?? Feed consumption "may" fall of some and milk production do the same but seldom is it enough in most breeds of cattle to make a substantial difference. Certain breeds of cattle also handle heat much better than others, color having little to know bearing whatsoever on their performance. Probably half or more of the cattle in Texas are black and are in some stage of heat stress 7 months of the year yet they perform. The live long lives, they breed back timely and they raise great calves regardless of when they breed and calve.....Israel has some of the highest producing dairies in the world and have developed a "heat resistant" holstein for a country that is not that condusive to high milk production. All I'm saying is that too much of a deal is made out of "black --vs-- white". All stockyards have losses and once you leave "white" you're talking some stage of "dark". Call it black and whatever you want. Heat may aggravate or add to stress and existing illnesses but I'll bet you a drink of your choice that even in a feed lot few animals of any color die as a direct result of "heat stroke" unless they are totally denied adequate water. Again I'm not denying the existence of heat stress nor the fact the black absorbs light and thus heat more than lighter colors. Only that the results of it are not nearly as severe as many would want you to think unless there is a gross absence of management.</p></blockquote><p></p>
[QUOTE="TexasBred, post: 966965, member: 6897"] 3way, it's pretty common knowledge that stress in cattle can begin at temps 77-78 degrees but what degree of stress is it?? Feed consumption "may" fall of some and milk production do the same but seldom is it enough in most breeds of cattle to make a substantial difference. Certain breeds of cattle also handle heat much better than others, color having little to know bearing whatsoever on their performance. Probably half or more of the cattle in Texas are black and are in some stage of heat stress 7 months of the year yet they perform. The live long lives, they breed back timely and they raise great calves regardless of when they breed and calve.....Israel has some of the highest producing dairies in the world and have developed a "heat resistant" holstein for a country that is not that condusive to high milk production. All I'm saying is that too much of a deal is made out of "black --vs-- white". All stockyards have losses and once you leave "white" you're talking some stage of "dark". Call it black and whatever you want. Heat may aggravate or add to stress and existing illnesses but I'll bet you a drink of your choice that even in a feed lot few animals of any color die as a direct result of "heat stroke" unless they are totally denied adequate water. Again I'm not denying the existence of heat stress nor the fact the black absorbs light and thus heat more than lighter colors. Only that the results of it are not nearly as severe as many would want you to think unless there is a gross absence of management. [/QUOTE]
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