TABLE 1. ESTIMATED MONTHLY DRY MATTER PRODUCTION BY QUALITY FOR SELECTED PAS-
TURES IN SOUTH CENTRAL OKLAHOMA
|
_______Pasture |
Nitrogen |
______Item______ |
Unit |
Jan. |
Feb. |
Mar. |
Apr. |
May |
Jun.’ |
Jul . |
Aug. |
Sept. |
Oct. |
Nov. |
Dec. |
|
Midland Bermuda |
200 |
Bermuda Hay |
Ton |
0.00 |
0.00 |
0.00 |
0.00 |
Dry Matter 1.18 0.42 |
0.00 |
0.00 |
0.26 |
0.00 |
0.00 |
0.00 | |
|
Total DM |
Cwt. |
0.00 |
0.00 |
0.00 |
11.52 |
28.06 |
19.54 |
15.03 |
12.53 |
11.02 |
2.51 |
0.00 |
0.00 | ||
|
Pasture DM 2.2 |
Cwt. |
0.00 |
0.00 |
0.00 |
0.00 |
10.10 |
10.10 |
8.35 |
8.35 |
8.27 |
1.88 |
0.00 |
0.00 | ||
|
Pasture DP |
Cwt. |
0.00 |
0.00 |
0.00 |
0.00 |
0.75 |
0.75 |
0.51 |
0.51 |
0,55 |
0.17 |
0.00 |
0.00 | ||
|
100 |
Bermuda Hay |
Ton |
0.00 |
o.oo |
0.00 |
0.00 |
0.00 |
0.81 |
0.00 |
0.46 |
0.00 |
0.00 |
0.00 |
0.00 | |
|
Total DM |
Cwt. |
0.00 |
0.00 |
0.00 |
7.84 |
19.09 |
13.29 |
10.23 |
8.52 |
7.50 |
1.70 |
0.00 |
0.00 | ||
|
Pasture DM 2.2 |
Cwt. |
0.00 |
0.00 |
0.00 |
0.00 |
6.85 |
6.85 |
5.68 |
5.68 |
5.63 |
1.28 |
0.00 |
0.00 | ||
|
Pasture DP |
Cwt. |
0.00 |
0.00 |
0.00 |
0.00 |
0.51 |
0.51 |
0.35 |
0.35 |
0.37 |
0.08 |
0.00 |
0.00 | ||
|
50 |
Bermuda Hay |
Ton |
0.00 |
0.00 |
0.00 |
0.00 |
0.45 |
0.00 |
0.00 |
0.36 |
0.00 |
0.00 |
0.00 |
0.00 | |
|
Total DM |
Cwt. |
0.00 |
0.00 |
0.00 |
5.74 |
13.97 |
9.73 |
7.49 |
6.24 |
5.49 |
1.25 |
0.00 |
0.00 | ||
|
Pasture DM 2.2 |
Cwt. |
0.00 |
0.00 |
0.00 |
0.00 |
6.09 |
6.09 |
0.00 |
0.00 |
4.06 |
0.94 |
0.00 |
0.00 | ||
|
Pasture DM 1.8 |
Cwt. |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
4.06 |
4,06 |
0.00 |
0.00 |
0.00 |
0.00 | ||
|
Pasture DP |
Cwt. |
0.00 |
0.00 |
0.00 |
0.00 |
0.45 |
0.45 |
0.22 |
0.22 |
0.25 |
0.06 |
0.00 |
0.00 | ||
|
Weeping Lovegrass Average Soil Rotation Grazing |
200 |
W. Love Hay |
Ton |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.97 |
0.00 |
0.41 |
0.00 |
0.00 |
0.00 |
0.00 |
|
Total DM |
Cwt. |
0.00 |
O-OO |
0.00 |
11.04 |
16.79 |
16.79 |
12.99 |
11.75 |
10.51 |
8.39 |
0.00 |
0.00 | ||
|
Pasture DM 2.6 |
Cwt. |
0.00 |
0.00 |
0.00 |
7.15 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 | ||
|
Pasture DM 2.2 |
Cwt. |
0.00 |
0.00 |
0.00 |
0.00 |
7.15 |
7.15 |
7.15 |
7.15 |
0.00 |
0.00 |
0.00 |
0.00 | ||
|
Pasture DM 1.8 |
Cwt. |
0.00 |
o.oo |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
16.08 |
0.00 | ||
|
Pasture DP |
Cwt. |
0.00 |
0.00 |
0.00 |
0.75 |
0.54 |
0.54 |
0.44 |
0.44 |
0.00 |
0.00 |
0.18 |
0.00 | ||
|
100 |
W. Love Hay |
Ton |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.80 |
0.00 |
0.39 |
0.00 |
0.00 |
0.00 |
0.00 | |
|
Total DM |
Cwt. |
0.00 |
0.00 |
0.00 |
9.21 |
14.00 |
14.00 |
10.84 |
9.80 |
8.77 |
7.00 |
0.00 |
0.00 | ||
|
Pasture .DM 2.6 |
Cwt. |
0.00 |
0.00 |
0.00 |
6.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 | ||
|
Pasture DM 2.2 |
Cwt. |
0.00 |
0.00 |
0.00 |
0.00 |
6.00 |
6.00 |
6.00 |
6.00 |
0.00 |
'0.00 |
0.00 |
0.00 | ||
|
Pasture DM 1.8 |
Cwt. |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
12.00 |
0.00 | ||
|
Pasture DP |
Cwt. |
0.00 |
0.00 |
0.00 |
0.63 |
0.40 |
0.40 |
0.37 |
0.37 |
0.00 |
0.00 |
0.13 |
0.00 | ||
|
50 |
W. Love Hay |
Ton |
∩.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.54 |
0.00 |
0.00 |
0.27 |
0.00 |
0.00 |
0.00 | |
|
Total DM |
Cwt. |
0.00 |
0.00 |
0.00 |
6.23 |
9.46 |
9.46 |
7.32 |
6.63 |
5.93 |
4.73 |
0.00 |
0.00 | ||
|
Pasture DM 2.6 |
Cwt. |
0.00 |
0.00 |
0.00 |
4.04 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 | ||
|
Pasture DM 2.2 |
Cwt. |
0.00 |
0.00 |
0.00 |
0.00 |
4.04 |
4.04 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 | ||
|
Pasture DM 1.8 |
Cwt. |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
4.04 |
4.04 |
0.00 |
0.00 |
8.00 |
0.00 | ||
|
Forage DP |
Cwt. |
0.00 |
0.00 |
0.00 |
0.36 |
0.36 |
0.23 |
0.23 |
0.23 |
0.00 |
0.00 |
0.09 |
0.00 | ||
stocker steers and hired labor. Sell activities include
wheat, soybeans, grain sorghum, stocker steers, cull
cows and steers and heifer calves. Base prices for
cattle are approximate 1965-75 average prices,
seasonally adjusted [2]. Base prices for crops are
1972-75 average prices. Input prices approximate
1975 levels.
OPTIMAL LIVESTOCK FARM ORGANIZATIONS-
AN EXAMPLE
The optimal organization for a 700-acre livestock
farm in southcentral Oklahoma was derived with base
assumptions concerning prices and available
resources. Livestock activities consist of 62 spring
cow-calf units wintered on pasture DM 2.2, 11 fall
cow calf units wintered on pasture DM 2.2, 55
cow-calf units wintered on hay 2.2, 15 fall cow-calf
units wintered on pasture DM 1.8 supplemented with
pasture DM 2.6, and 124 head of October to June
stocker steers on pasture DM 2.6.
Production and distribution of pasture forage is
summarized in Table 4. Spring cow-calf and a small
group of fall cow-calf units utilized the pasture DM
2.2 produced by the fescue pasture. Pasture DM 2.6
produced by the fescue-clover and bermuda-wheat for
grain activities were allocated to stocker steers. A
small proportion was limit grazed (grazing alternated
between high and poor quality forages) by the fall
cow-calf units as a protein and energy supplement
combined with pasture DM 1.8.
An excess of pasture DM 1.8 in the July-August
and September-October time periods and hay 1.8
suggests a need for activities which use low quality
125
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