Computer Programs from Purdue Animal Sciences
The following computer programs have been developed and are available from
the Department of Animal Sciences at Purdue University. MS-DOS operating
systems only! See each entry for the appropriate method for obtaining the
program(s). Some programs are now available online.
MANURE MANAGEMENT
NUTRITION
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FATVALUE - calculates the performance necessary
for breakeven conditions with or without fat, or, given the performance
with and without fat, calculates the breakeven price for fat.
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PURATION Programs - balancing rations for beef,
sheep, swine and horses.
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SUBVALUE - Substitution value of feedstuffs - Available
for FREE DOWNLOAD.
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TDN2NETE - is a simple program for converting TDN
values to Net Energy for Maintenance and Net Energy for Gain values. Available
for FREE DOWNLOAD.
NUTRITION
FATVALUE
The value of fat is calculated incorrectly in most least-cost ration solutions,
since the basic assumption that source of a nutrient is unimportant because
performance will be equal once requirements are met regardless of source
of nutrient does not hold true. FATVALUE calculates the performance necessary
for breakeven conditions with or without fat, or, given the performance
with and without fat, calculates the breakeven price for fat. Taken into
account are: the composition and price of other reference ingredients (corn,
soybean meal), the feed efficiency without fat, rate of gain and the %
utilization of time saved from improvement in gain, and carcass compositional
changes from feeding fat. PRICE: $15.00. Order
using instruction for PURATION Programs.
The paper explaining FATVALUE given at the 1995 Purdue Swine Day progam
is available as FATVALUE.DOC
in Word 6 for Windows, or FATVALUE.TXT
as a plain text file.
Programs in this series deal with balancing rations for beef, sheep,
swine and horses (dairy has been retired). They are all programs were designed
for MS-DOS computers, but run in a window in the various versions of Microsoft
Windows and NT . Price: $25 each program. Also includes the free program
SUBVALUE, for substitution values of feedstuffs.
SUBVALUE - Substitution value of feedstuffs
A program for calculating the substitution value of a feedstuff, based
on its content of the three most expensive nutrients (energy, protein/lysine,
phosphorus) and the price of reference feedstuffs. Based on Pork Industry
Handbook factsheet PIH 112; operates also for feeds for other species,
such as forages for cattle. FREE. Please download from this location. If
you order from Dr. Forsyth there may be a charge for postage and handling.
Contact dforsyth@purdue.edu to
order if you have trouble with the following procedure.
SUBVALUE is available for downloading in several forms.
-
Recommended: A self-extracting version with a modern SETUP for installation
in WINDOWS 9x and later versions of WINDOWS and NT is available as
SUBVALUE.EXE.
OR, an EXCELL worksheet version is available as subvalue2.xls.
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Alternatively, the program SUBVALUE may be obtained by downloading the
archive files
RUNPUR.ZIP
(193,805 bytes) and
SUBVALUE.ZIP
(5340 bytes) into a subdirectory on your hard drive. Unpack them with PKUNZIP,
by typing PKUNZIP RUNPUR and PKUNZIP SUBVALUE from DOS or from the RUN
command from Program Manager in Windows. After unpacking, the archive files
can be deleted. A batch file named SUBVALUE.BAT will issue the command
RUN SUBVALUE to cause the program to execute. Instructions for loading
the program to Windows 3.11 and changing to the supplied icon are in the
file
INSTLWIN.TXT
(1859 Kb).
(Download PKZ204G.EXE
(202,574 bytes), to obtain PKUNZIP, into a separate directory and execute
it in order to unpack the archive if you do not have pkunzip or another
program that unpacks zipped files.)
TDN2NETE
As with SUBVALUE, the program TDN2NETE may be obtained by downloading the
self-extracting version with Windows 9x+ installation, as
TDN2NETE.EXE
(recommended), or the archive files RUNPUR.ZIP
(193,805 bytes) and TDN2NETE.ZIP.
Follow the directions given for SUBVALUE in the preceeding
section. TDN2NETE is a simple program for converting TDN (Total Digestible
Nutrient) values to Net Energy for Maintenance and Net Energy for Gain
values. Also computes TDN values from ADF (Acid Detergent Fiber) values.
Based on NRC formulas. FREE. May be a charge for postage and handling,
if ordered. Please download from this site if you are able. Contact dforsyth@purdue.edu
to
order.
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