Progress report on programs for developing lightweight calves in south and central Florida /

Material Information

Progress report on programs for developing lightweight calves in south and central Florida /
Series Title:
Mimeo report ;
Chapman, H. L ( Herbert L. ), 1923-
Palmer, A. Z
Carpenter, J. W ( James Woodford )
Agricultural Research Center, Ona
Place of Publication:
Ona, FL
Agricultural Research Center,
Agricultural Research Center
Publication Date:
Copyright Date:
Physical Description:
2 p. : ; 28 cm.


Subjects / Keywords:
Calves -- Weight -- Florida ( lcsh )
Calves ( jstor )
Pastures ( jstor )
Agriculture ( jstor )
government publication (state, provincial, terriorial, dependent) ( marcgt )
non-fiction ( marcgt )


General Note:
Caption title.
General Note:
"April, 1972."
Statement of Responsibility:
H.L. Chapman, Jr., A.Z. Palmer and J.W. Carpenter.

Record Information

Source Institution:
University of Florida
Holding Location:
University of Florida
Rights Management:
All applicable rights reserved by the source institution and holding location.
Resource Identifier:
85894312 ( OCLC )


This item has the following downloads:

Full Text

Ona Agricultural Research Center -*
S RC-1972-8 Apri,, 197 NAY 11 1972

Progress Report on Programs for Developing lightweight
Calves in South and Central Flori.F.AS niv. of F ida
Univ. of Florida
H. L. Chapman, Jr., A. Z. Palmer and J. W. Carpenter-

On January 1, 1970, more than 1 million head, or 65% of the cattle in
Florida, were located south of a line along the northern boundary of Pinellas,
Hillsboro, Polk and Orange Counties.- Based on a 75% calf crop there were
'about 435,000 calves born in this part of the state during 1970, with over
half of them sold at weaning to be slaughtered or shipped out of state.
During.this year a total of 423,540 head of stocker calves were shipped out of
Florida to other areas. If economical programs can be developed for growing
out these stocker cattle in south and central Florida, it would greatly
increase Florida's income from beef cattle.

Experimental Procedure

One hundred and seventy calves with an average initial weight of 221
pounds were divided into five equal groups on the basis of weight, sex and
breed. The groups were randomly allotted to the treatments shown in Table 1.
Each group contained 30 lightweight heifer calves purchased in Collier County
and four lightweight steer calves born at the Ona ARC. Four groups were fed
on Pangolagrass pasture, receiving 0.5, 1.0, 1.5 and 2.0% of their body
Weight of.a concentrate mixture containing 34.1% dried citrus pulp, 34.1%
corn hominy, 14.6% 41% cottonseed meal, 9.8% cane molasses, 4.9% dehydrated
alfalfa meal and 2.5% Ona #2 mineral mixture. The fifth group was full-fed
the same mixture in drylot, along with Pangolagrass hay. The groups"fed the
two lower concentrate levels on pasture also received some Pangolagrass hay
toward the end of the experiment, because their pasture became deficient.
The calves were sold for slaughter when they reached approximately 475
pounds. After 110 were sold the remaining 59 head were all placed in drylot

11 Animal Nutritionist and Director, Agricultural Research Center, Ona,
Florida, and Meat Scientists, Department of Animal Science, Gainesville.
2/ Florida Agricultural Statistics, Livestock Summary. Florida Crop and
Livestock Reporting Service. 1969-70.

and full fed. Thirty-nine of the remaining 59 calves were from the groups
fed the two lower levels of feed on pasture. It took 198 days to market
the entire-group of calves.


A brief summary of results is presented in Table 1. The initial value
per pound was the price delivered to the Ona ARC. The final values were the
actual prices received when the calves were sold. Feed costs were charged at
$62.00 ton for the concentrate mixture and $35.00 for Pangolagrass hay. The
greatest return over steer and feed costs was made from the group fed 1.5
and 2.0% of their body weight on pasture.

Table 1. Average data, per group, for calves fattened on different


Feed intake on pasture (% body wt.) Full-fed
0.5 1.0 1.5 2.0 drylot

Number of calves 34 33 34 34 34
Initial weight, lb. 7515 7280 7500 7530 7460
Initial value ($/cwt) 32.60 32.60 32.60 32.60 32.60
Initial value ($) 2449.89 2373.28 2445.00 2454.78 2431.96
Sales weight, lb. 12870 13665 14745 15370 15705
Total income ($) 3481,11 3649.15 4002.30 4230.25 4357.74
Final value ($/cwt) 27.05 26.70 27.14 27.52 27.75
Carcass yield (%) 58.62 : 59.91 61.10 63.54 62.94
Feed cost/group 1032.25 1105.80 1116.54 1311.32 1789.82
Return/group ($) 1.03 170.07 440.76 464.15 135.96
Return/head ($) 0.03 5.15 12.96 13,65 4.00

One animal became lost in woods and was
Return over calf and feed cost.

taken from experiment.


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not reflect current scientific knowledge
or recommendations. These texts
represent the historic publishing
record of the Institute for Food and
Agricultural Sciences and should be
used only to trace the historic work of
the Institute and its staff. Current IFAS
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site maintained by the Florida
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