Re: pearl's list update

"swamp" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED]
> On Tue, 2 Dec 2003 03:25:39 -0000, "pearl" <[EMAIL PROTECTED]>
> wrote:
<..>
> >Support your claims.
>
> I have. You've got a minimum of 60 milliion calories *per head* of
> cattle to account for. Find something wrong w/ my math. I
> double-checked and my numbers work out fine.

O.k.

'Beef cattle may be ready for slaughter at 360kg (800lb) in just
over a year; at 450kg (1000lb) at eighteen months old, or at
500kg (1200lb) a few months later.
http://www.allenandpage.com/smallholders/healthcare/cattle1.htm

That indicates that liveweight gain in the older animal aged1-2
years, from 800 - 1200lbs, is on average 1.09lb a day, not 3.

Of which _liveweight gain_, meat protein [DM] is only about 6.9%.*

'In addition to hay or silage, their rations can gradually be increased
from 1.3kg (3lb) of Beef Finishing Pencils a day, up to 3.5 to 4.5 kg
(8 or 10lb) for the older animals. Silage may be increased from 9kg
(20lb) a day, up to a maximum of about 22kg. (30lbs)
http://www.allenandpage.com/smallholders/healthcare/cattle1.htm

Looks like my estimates were a gross UNDER-estimation.

How many light-bulbs, swamp?


*
Live-weight       900        1040        1146      1258          1403 lb
'harvest'                1    .....    2   ....     3      ....     4     ......   5
Fat  %              17.7 ........22.6  ..... 28.1 .......30.3 ..........34.0
Protein   %       14.5 ........13.9 .......12.6  ......12.0 ..........11.6
Water    %        51.3  ...... 48.0....... 43.9 ...... 42.3.......... 40.1
Bone     %        16.4 ....... 15.4 ...... 15.4 ...... 15.3  .........14.3
carcass weight   450          550         650         750           850 lbs.
http://ars.sdstate.edu/BeefExt/BeefReports/2000/influence_of_body_weight_and_mar.htm

- of which protein (meat DM) gain is
 (1) 14.5% of 450lb carcass    (4)  12% of 750lb carcass
              = 65.25    lbs meat DM         = 90 lbs meat DM
- a gain of 24.74lbs of meat protein for 300lbs of feedlot carcass
gain; or 24.74lbs gain of meat protein for 358lbs liveweight gain,
= 6.9% of liveweight gain.

24.74 lbs of meat protein for a year's hard work, confinement,
slaughter, resources!  Waste, waste, waste, and yet more waste.