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red angus vs black angus
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<blockquote data-quote="Sean M" data-source="post: 885179" data-attributes="member: 13381"><p>I found a study on it. It shows that lighter coloured animals perform better during heat stress but it's important to look at the final results table:</p><p></p><p>Table 1. Carcass characteristics of Angus, Hereford and Murray Grey steers after 165-183 days on feed.</p><p>Traits Angus Hereford Murray Grey P value</p><p>Initial wt (kg) 436 ± 4.0a 427 ± 3.3a 386 ± 20.3b P<0.01</p><p>Final wt (kg) 599 ± 7.44 592 ± 8.32 577 ± 20.3 ns</p><p>HCW (kg) 359.7± 5.3 362.9± 3.6 338 ± 16.8 ns</p><p>Dressing (%) 60 ± 0.7a 62 ±1 a 58 ± 1.4b P<0.01</p><p>EMA (cm²) 79.6 ± 1 79.8 ± 0.8 78.1 ± 2.7 ns</p><p>P8 fat (mm) 19.7 ± 0.7a 19.5 ± 0.6a 14.4 ± 1.1b P<0.01</p><p>Marbling 1.6 ± 0.09 1.56 ±0.07 1.52 ±0.14 ns</p><p>Values in rows followed by different letters are significantly different</p><p></p><p>(Apologies about the formatting)</p><p></p><p><a href="http://web.mac.com/marykat1/Clubhouse/colourcool_files/heat.pdf" target="_blank">http://web.mac.com/marykat1/Clubhouse/colourcool_files/heat.pdf</a></p><p></p><p>Heat index explanation: <a href="http://www.coolcows.com.au/go-on-alert/thi.htm" target="_blank">http://www.coolcows.com.au/go-on-alert/thi.htm</a></p></blockquote><p></p>
[QUOTE="Sean M, post: 885179, member: 13381"] I found a study on it. It shows that lighter coloured animals perform better during heat stress but it's important to look at the final results table: Table 1. Carcass characteristics of Angus, Hereford and Murray Grey steers after 165-183 days on feed. Traits Angus Hereford Murray Grey P value Initial wt (kg) 436 ± 4.0a 427 ± 3.3a 386 ± 20.3b P<0.01 Final wt (kg) 599 ± 7.44 592 ± 8.32 577 ± 20.3 ns HCW (kg) 359.7± 5.3 362.9± 3.6 338 ± 16.8 ns Dressing (%) 60 ± 0.7a 62 ±1 a 58 ± 1.4b P<0.01 EMA (cm²) 79.6 ± 1 79.8 ± 0.8 78.1 ± 2.7 ns P8 fat (mm) 19.7 ± 0.7a 19.5 ± 0.6a 14.4 ± 1.1b P<0.01 Marbling 1.6 ± 0.09 1.56 ±0.07 1.52 ±0.14 ns Values in rows followed by different letters are significantly different (Apologies about the formatting) [url]http://web.mac.com/marykat1/Clubhouse/colourcool_files/heat.pdf[/url] Heat index explanation: [url]http://www.coolcows.com.au/go-on-alert/thi.htm[/url] [/QUOTE]
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