<%BANNER%>

UFIR IFAS



Economic Importance of Genetic Improvements in Milk Production, Reproduction, and Productive Life
http://edis.ifas.ufl.edu/ ( Publisher's URL )
CITATION PDF VIEWER
Full Citation
STANDARD VIEW MARC VIEW
Permanent Link: http://ufdc.ufl.edu/IR00001637/00001
 Material Information
Title: Economic Importance of Genetic Improvements in Milk Production, Reproduction, and Productive Life
Physical Description: Fact Sheet
Creator: de Vries, Albert
Publisher: University of Florida Cooperative Extension Service, Institute of Food and Agriculture Sciences, EDIS
Place of Publication: Gainesville, Fla.
Publication Date: 2005
 Notes
Acquisition: Collected for University of Florida's Institutional Repository by the UFIR Self-Submittal tool. Submitted by Melanie Mercer.
Publication Status: Published
General Note: "Original publication date November, 2005. Reviewed February, 2010."
General Note: "AN158"
 Record Information
Source Institution: University of Florida Institutional Repository
Holding Location: University of Florida
Rights Management: All rights reserved by the submitter.
System ID: IR00001637:00001

Downloads

This item is only available as the following downloads:

AN15800 ( PDF )


Full Text

PAGE 1

Albert de Vries2

PAGE 2

Economic Importance of Genetic Improvements in Milk Production, Reproduction, and.... 2

PAGE 3

Economic Importance of Genetic Improvements in Milk Production, Reproduction, and.... 3 Minima and maxima of PTAs for milk, fat, protein, daughter pregnancy rate (DPR), and productive life (PL) in the August 2005 USDA-AIPL Holstein Sire Summaries. PTA PTA Milk (305-d lbs) PTA Fat n(305-d lbs) PTA Protein n(305-d lbs) PTA DPR n(%) PTA PL (months) Minimum 285 15 16 -2.1 -2.0 Maximum 3110 102 81 2.7 5.0 Source: http://aipl.arsusda.gov/. 32 x $2.54 + + 1.4 x $5.00 = $363.25. Then for

PAGE 4

Economic Importance of Genetic Improvements in Milk Production, Reproduction, and.... 4 Economic values and relative values of the 11 traits in the net merit (NM$), fluid merit (FM$) and cheese merit (CM$) indices as calculated by USDA-AIPL in 2005. Trait PTA Units Standard Deviation (SD) Economic Value n($/PTA unit) Relative Value n(%) NM$ CM$ FM$ NM$ CM$ FM$ Protein Pounds 25 4.81 6.68 1.33 33 36 9 Fat Pounds 32 2.54 2.54 2.54 22 18 22 Milk yield Pounds 832 0 -0.056 0.104 0 -10 24 Productive life Months 1.5 26 26 26 11 9 11 Somatic cell score Log 0.2 -166 -166 -166 -9 -7 -9 Udder Composite 0.78 33 33 33 7 6 7 Feet/legs Composite 0.88 15 15 15 4 3 4 Body size Composite 0.94 -12 -12 -12 -3 -2 -3 Daughter pregnancy ratePercent 1.4 17 17 17 7 5 7 Service sire calving difficultyPercent 1.7 -5 -5 -5 -2 -2 -2 Daughter calving difficulty Percent 1.4 -5 -5 -5 -2 -2 -2

PAGE 5

Economic Importance of Genetic Improvements in Milk Production, Reproduction, and.... 5 Example calculation of the fluid merit (FM$) of a Holstein animal. Trait PTA Reliability (%) Economic Value n(FM, $/PTA unit) Lifetime Economic Value ($) Protein +70 90 1.33 93.10 Fat +80 90 2.54 203.20 Milk yield +2,000 90 0.104 208.00 Productive life +2.5 60 26 65.00 Somatic cell score +3 (-3.1)75 -166 16.60 Udder +1.5 80 33 49.50 Feet/legs +0.5 75 15 7.50 Size -1 85 -12 12.00 Daughter pregnancy rate +0.3 55 17 5.10 Service sire calving difficulty+6 (-8) 90 -5 10.00 Daughter calving difficulty +7 (-8) 60 -5 5.00 FM$ 675.00 Reliability( estimated) 86% Milk component prices and economic values used by USDA-AIPL. Index Milk yield ($/lbs) Fat ($/lbs) Protein ($/lbs) NM$ price 0.012 1.30 2.30 CM$ price -0.009 1.30 3.00 FM$ price 0.051 1.30 1.00 Feed cost -0.012 -0.35 -0.50 Lifetime (# lactations) 3 3 3 Economic Values NM$ (lifetime) 0.000 2.54 4.81 CM$ (lifetime) -0.056 2.54 6.68 FM$ (lifetime) 0.104 2.54 1.34

PAGE 6

Economic Importance of Genetic Improvements in Milk Production, Reproduction, and.... 6 Possible economic values of milk yield, fat and protein per PTA unit and lifetime value of 1 pound extra milk with 3.5% fat and 3.0% protein per lactation. The components of the FM$ index are multiplied by marginal income over feed cost divided by 0.078 (factor). Marginal income over feed cost ($/lbs) Factor Milk yield n($/PTA unit) Fat n($/PTA unit) Protein n($/PTA unit) 1 lbs milk with 3.5% fat and 3.0% protein ($ lifetime) 0.070 0.901 0.091 2.194 1.072 0.200 0.078* 1.000 0.104 2.537 1.335 0.233 0.080 1.030 0.108 2.641 1.416 0.243 0.100 1.288 0.143 3.535 2.103 0.330 0.120 1.545 0.178 4.429 2.791 0.417 *Current USDA-AIPL assumption.

PAGE 7

Economic Importance of Genetic Improvements in Milk Production, Reproduction, and.... 7 Estimates of the economic value of productive life for various heifer prices and herd lifetimes. 25% 35% 45% Annual cull rate Beef price Heifer price 48.1 34.3 26.7 Lifetime (months) 525 1300 $16 $23 $29 525 1700 $24 $34 $44 525 2100 $33 $46 $59

PAGE 8

Economic Importance of Genetic Improvements in Milk Production, Reproduction, and.... 8

PAGE 9

Economic Importance of Genetic Improvements in Milk Production, Reproduction, and.... 9 Economic values for productive life (PL), daughter pregnancy rate (DPR), and milk according to USDA-AIPL and for 2 hypothetical farms A and B. USDA-AIPL Farm A Farm B 1 month PL $26 $16 $36 1 % DPR $17 $10 $24 1 lbs milk in 305-days* $0.233 $0.33 $0.33 *Milk with 3.5% fat and 3.0% protein. value of improvements in 1 unit PTA productive life (PL), daughter pregnancy rate (DPR), and milk according to USDA-AIPL and for 2 hypothetical farms A and B. USDA-AIPL Farm A Farm B 1 month PL is worth: 111.59 48.48 109.09Lbs 305-day milk* 1 month PL is worth: 1.53 1.60 1.50% DPR 1 % DPR is worth: 72.96 30.30 72.73Lbs 305-day milk* *Milk with 3.5% fat and 3.0% protein.