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2002 Paul M. VanRaden Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville, MD Selection of dairy.

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Presentation on theme: "2002 Paul M. VanRaden Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville, MD Selection of dairy."— Presentation transcript:

1 2002 Paul M. VanRaden Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville, MD paul@aipl.arsusda.gov Selection of dairy cattle for lifetime profit

2 NAAB Dairy Trade Mission – Lifetime Profit (2)P.M. VanRaden 2002 Objectives  Document USA Net Merit index  Discuss traits to include, estimation of economic values  Compare current national selection indexes  Begin with table from Holstein International (February 1999, p 71)

3 NAAB Dairy Trade Mission – Lifetime Profit (3)P.M. VanRaden 2002

4 NAAB Dairy Trade Mission – Lifetime Profit (4)P.M. VanRaden 2002

5 NAAB Dairy Trade Mission – Lifetime Profit (5)P.M. VanRaden 2002

6 NAAB Dairy Trade Mission – Lifetime Profit (6)P.M. VanRaden 2002 Expression of Economic Indexes  Report proportion of emphasis (relative value / Σ |relative values|)  Reformat into two-way table of traits by countries (Bennet Cassell’s idea)  Also display history of USA indexes (table of traits by years)

7 NAAB Dairy Trade Mission – Lifetime Profit (7)P.M. VanRaden 2002 Relative emphasis on traits in USDA economic indexes (PD$, MFP$, CY$, and NM$) and Holstein Association TPI across time Year Introduced and Index Name 19711976197719801984198719891992199419972000 Trait PD$TPIMFP$TPICY$TPI NM$TPI NM$ Protein 275340345043504136 Fat 48464540341725171621 Milk 52602760-2 6 5 % Fat 20 Longevity 201314 SCS 6 1 9 Udder 17 11 9 7 Feet / legs 5 5 4 Size -4 Final Score 4020 17 14

8 NAAB Dairy Trade Mission – Lifetime Profit (8)P.M. VanRaden 2002 Relative emphasis in selection indexes for other countries with many Holsteins Country (Interbull Code) USADEUFRANZLNLDCANGBRAUSITADNKSWEESP % of Interbull Population 17.4 15.312.310.69.34.7 4.54.34.11.5 1.2 Index NameNM$RZGISUBWDPSLPIPLIAPRPFTS – ITMIICO Trait Protein 36453542354357364221 51 Fat 211110138141112 104 Milk 5-22-14-19-20-3-4 % Protein 235 % Fat 22 Longevity 14613101281512866 SCS / mastitis 914131137101512 Fertility 1137910 Other diseases 23

9 NAAB Dairy Trade Mission – Lifetime Profit (9)P.M. VanRaden 2002 Relative emphasis in selection indexes for other countries with many Holsteins (cont.) Country (Interbull Code) USADEUFRANZLNLDCANGBRAUSITADNKSWEESP % of Interbull Population 17.415.312.310.69.34.7 4.54.34.11.51.2 Index NameNM$RZGISUBWDPSLPIPLIAPRPFTS – ITMIICO Trait Udder traits788171391217 Feet / legs4513116598 Size-422-134-42 Dairy character3 Rump21 Final score429 Calving ease310612 Growth / meat46 Milking Speed <146 Temperament523

10 NAAB Dairy Trade Mission – Lifetime Profit (10)P.M. VanRaden 2002 Questions  Do cow shows and judging contests help or harm education?  What is feed cost for protein, fat?  Does milk volume have negative value only because of quotas? Milk volume quotas in Europe? People quotas in Australia, NZ?

11 NAAB Dairy Trade Mission – Lifetime Profit (11)P.M. VanRaden 2002 Prices of Milk and Water  Cost to USA consumers ($ / liter) American bottled water0.16 Canadian spring water0.51 Skim milk0.66 2% milk0.68 3.5% (whole) milk0.72 French Alps water1.35  Milk requires water, cheese does not

12 NAAB Dairy Trade Mission – Lifetime Profit (12)P.M. VanRaden 2002 Conclusions  Many traits in addition to yield contribute to dairy cattle profit  Longevity, fertility, and health traits have high value  Direction unclear for some traits  Indexes have improved rapidly in recent years

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