Group Title: Mimeo report - University of Florida Everglades Experiment Station ; 61- 16
Title: Performance of cattle of British and Brahman breeding when fattened in drylot and on pasture
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Permanent Link: http://ufdc.ufl.edu/UF00067513/00001
 Material Information
Title: Performance of cattle of British and Brahman breeding when fattened in drylot and on pasture
Series Title: Everglades Station Mimeo Report
Physical Description: 4 leaves : ; 29 cm.
Language: English
Creator: Chapman, H. L ( Herbert L. ), 1923-
Palmer, A. Z
Crockett, J. R ( Joe Richard ), 1926-
Carpenter, J. W
Everglades Experiment Station
Publisher: Everglades Experiment Station
Place of Publication: Belle Glade Fla
Publication Date: 1961
 Subjects
Subject: Beef cattle breeds -- Feeding and feeds -- Florida   ( lcsh )
Beef cattle -- Feed utilization efficiency -- Florida   ( lcsh )
Genre: non-fiction   ( marcgt )
 Notes
Statement of Responsibility: H.L. Chapman, Jr., A.Z. Palmer, J.R. Crockett and J.W. Carpenter.
General Note: "April 18, 1961."
General Note: Caption title.
 Record Information
Bibliographic ID: UF00067513
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 64637214

Full Text

63 &o tI,
.-4 t- 1b


Everglades Station Mimeo 61-16


April 18, 1961


Performance of Cattle of British and Brahman Breeding When Fattened
in Drylot and on Pasture 1/


H. L. Chapman, Jr., A. Z. Palmer, J. R. Crockett and J. W. Carpenter 2/ _/


The data presented in this paper are results from the first two of four
experiments conducted at the Everglades Experiment Station to evaluate the
relative merits of fattening cattle on good, well managed pasture and in
drylot. During these first two studies steers of different breed composi-
tion were used, in order to determine if various breeds performed similarly
on the different feeding regimes.

Experimental Procedures


The first experiment (819-1) had the following design:


Number of animals
Breed of steer Pasture Drylot Source

Hereford 24 24 Purchased
Brahman 8 8 U.S. Sugar Corp., Clewiston
Hereford x Brahman 8 8 Cross-7 Ranch, Ft. Pierce
Angus x Brahman 8 8 Wm. T. Stitt, Clewiston
Charbray 8 8 K-Bar Ranch, Zephyrhills
Santa Gertrudis 8 8 Montgomery Ranch, Arcadia
TOTAL 6V


The second experiment (819-2) had the following experimental design:

Number of animals
Breed of Steer Pasture Drylot Source


Hereford x Brahman 12 12
Charbray 12 12
Angus 12 12
Santa Gertrudis 12 12
TOTAL W M


Cross-7 Ranch, Clewiston
K-Bar Ranch, Zephyrhills
M & M Ranch hatchee
J. D. Hawi RidWu4ade


I/ Presented at 10th Annual Beef Cattle Short Course, U
Gainesville, Florida.
2/ Associate Animal Nutritionist, Associate Animal Husbh
iate and Assistant Animal Husbandman.
3/ Acknowledgment is made to R. W. Kidder, J. V. McLeod
their assistance in these studies.






Tbale 1. E.E.S. 819-1.


Hereford Angus
x x Vanta
Hereford Brahman Brahman Brahman Charbray Gertrudis Average
Overall Average
Number steers 48 16 16 16 16 16
Initial wt. (lb.) 773 841 739 769 789 664
Initial slaughter grade S- U+ U+ S- S- U+
Daily gain (lb.)/ 1.67 1.51 1.77 1.82 1.81 1.89
Intransit shrink (%) 3.21 3.69 2.93 3.42 3.02 3.55
Dressing percent (%)1/ 60.35 61.84 59.13 60.23 60.17 58.83
48-hr. cooler shrink (5)1/ 1.33 1.31 1.47 1.29 1.47 1.36
Change-in-grade (1/3) 3.3 2.6 2.9 4.0 2.9 3.1
Return ($) 19.73 16.70 18.43 27.30 26.34 29.65

Dry lot
Number steers 24 8 8 8 8 8 64
Daily gain (Ib.)2/ 1.63 1.35 1.66 1.77 1.65 1.73 1.63
Intransit shrink ()-/ 2.79 3.22 1.66 3.72 2.07 3.62 2.83
Dressing percent ()-/ 60.08 61.70 58.CO 60.40 59.66 58.49 59.81
48-hr. cooler shrink (M) 1.33 1.40 1.45 1.32 1.55 1.33 1.38
Change-in-grade (1/3) 3.5 2.9 2.4 3.9 3.2 3.9 3.3
Return ($) 15.70 10.19 8.52 23.58 18.44 22.46 16.29
Pasture
Number steers 24 8 8 8 8 8 64
Daily gain (Ib.) 1.70 1.68 1.89 1.86 1.97 2.07 1.82
Intransit shrink (%) 3.62 4.16 4.19 3.12 3.97 3.48 3.72
Dressing percent (M) 60.62 61.98 60.26 60.07 60.68 59.16 60.49
48-hr. cooler shrink (M) 1.32 1.21 1.49 1.26 1.39 1.39 1.34
Change-in-grade (1/3) 3.2 2.2 3.5 4.1 2.6 2.2 3.0
Return ($) 23.76 23.20 28.34 31.03 34.24 36.85 28.12
I/ Effect of breed significant (P = 0.05) for gain, dressing percent and cooler shrink.
/ Effect of dry lot and pasture significant (P = 0.05) for gain, intran-zit shrink and dressing percent.


(On feed 142 days)








Table 2. E.E.S. 819-2. (on feed 131 days)

Hereford
x Santa
Brahman Angus Charbray Gertrudis Average


Overall Average
Number steers
Initial wt. (lb.)
Initial slaughter grade
Daily gain (Ib.)
Intransit shrink (5)
Dressing percent (s) ,
48-hr. cooler shrink ()./
Change-in-grade (1/3)V/
Return ($)

Dry lot
Number steers
Daily gain (lb.),
Intransit shrink (%)2/
Dressing percent (M)
46-hr. cooler shrink ($)
Change-in-grade (1/3)2c/
Return ($)

Pasture
Number steers
Daily gain (lb.)!
Intransit shrink (%)
Dressing percent (%)
48-hr. cooler shrink (0)
Change-in-grade (1/3)
Return ($)


24
724
U+
1.84
4.1
59.20
3.16
1.9
16.88


12
1.98
4.39
58.77
3.18
2.5
15.68


12
1.69
3.76
59.63
3.14
1.3
18.08


24
772
S-
1.96
4.8
60.18
2.93
1.9
22.02


12
2.35
5.63
60.48
3.06
2.4
33.78


12
1.63
3.89
59.89
2.80
1.3
10.25


24
735
U+
1.96
4.7
59.89
3.20
1.4
21.99


12
2.13
4.55
59.07
3.18
1.6
20.43


12
1.79
4.86
60.71
3.23
1.2
23.55


24
784
U+
1.94
4.3
59.19
3.48
1.2
17.81


12
2.03
5.13
59.32
3.63
1.7
17.57


12
1.84
3.57
59.05
3.32
0.8
18.05


48
2.12
4.92
59.41
3.26
2.0
21.86


48
1.74
4.02
59.82
3.12
1.2
17.48


l/ E" fect of breed significant (P = 0.05) for cooler shrink
2/ r'-ect of dry lot pnd pasture significant (P = 0.053 for


and change-in-grade.
.. erag- a~ g.--rin', intransit shrink Jnd change-in-g.r-de


-~-~--~~- -- -- -- --







Table 3. Effect of breed and treatment upon carcass characteristics, E.E.S. 819-1 and E.E.S. 819-2
Circum- Unadjusted
Carcass Chuck length ference rib-eye Marbling Panel Shear
length thickness of leg of round area of tenderness test
(in.) (in.) (in.) (in.) (sq. in.) rib-eye- scores scores


EE.E.S. 819-1
Breed comparisons
Hereford
Brahman
HxB
AxB
Charbray
Santa Gertrudis
Pasture and dry lot


Pasture
Dry lot


E.E.S. 819-2
Breed comparisons
HxB
Charbray
Angus
Santa Gertrudis
Pasture and dry lot


Pasture
Dry lot


47-31/
48.6
46.6
47.7
49.2
47.4
comparisons


48.2
47.4


48.8 /W
49.6
48.0
50.0
comparisons


49.1
49.1


Determined by federal grader: traces 3; slight amount, 4; small amount, 5.
Average of an 8 member panel: excellent, 6; good, 5; average, 4; fair, 3; poor, 2;
Pounds of pressure necessary to shear a one-half inch core of meat.
Significant at P = 0.01 level of probability.
Significant at P = 0.05 level of probability.


inedible, 1.


6.95/
6.7
6.6
6.9
6.5
6.1


30.44
32.9
31.2
30.3
32.4
31.3


31.5
31.3


30.64/
31.9
29.3
31.8


30.9
30.9


33.0
32.4
31.7
32.6
33.3
31.0


32.74/
31.9


30.74
30.7
32.6
31.3


31.2
32.9


6.6
6.6


6.0v
5.9
6.8
6.1


6.1
6.3


9.87./
9.68
9.81
10.08
10.39
9.33


10.135/
9.59


9.65
10.01
9.79
10.25


9.9
9.9


4.4k
3.9
3.8
4.5
3.7
3.3


3.8
4.0


3.o-/
3.0
4.2
2.6


2.92/
3.4


4.5
4.2
4.8
4.6
4.3
4.1


4.22/
4.6


4.5
4.7


8.3
8.0
7.8
7.8
8.6
8.7


8.3
8.1


8.0
7.9
7.7
8.1


8.2/
7.6


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