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United States Department of Agriculture

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AIP research reports



Report number index  |  Topic index

Dates for updated reports shown in orange


Report number index

Report no. Date Title
AB1 Apr. 2007 All-breed evaluation

AWD1 Nov. 1998 Enhancing genetic improvement for milk yield by reducing generation interval

Base1 Oct. 2004 Genetic base changes for February 2005
Base2 Aug. 2009 Genetic base changes for January 2010
Base3 Oct. 2014 Genetic base changes for December 2014

CE1 Jan. 2005 Brown Swiss and Holstein calving ease

Cull1 Sept. 2009 Reasons that cows in Dairy Herd Improvement programs exit the herd

CH1 Jan. 1994 Changes in USDA-DHIA genetic evaluations (January 1994)
CH2 July 1994 Changes in USDA-DHIA genetic evaluations (July 1994)
CH3 Jan. 1995 Changes in USDA-DHIA genetic evaluations (January 1995)
CH4 July 1995 Changes in USDA-DHIA genetic evaluations (July 1995)
CH5 Jan. 1996 Changes in USDA-DHIA genetic evaluations (January 1996)
CH6 July 1996Changes in USDA-DHIA genetic evaluations (July 1996)
CH7 Feb. 1997 Changes in USDA-DHIA genetic evaluations (February 1997)
CH8 May 1997 Changes in USDA-DHIA genetic evaluations (May 1997)
CH9 Aug. 1997 Changes in USDA-DHIA genetic evaluations (August 1997)
CH10 Feb. 1998 Changes in USDA-DHIA genetic evaluations (February 1998)
CH11 June 1998Current and planned changes in USDA-DHIA genetic evaluations (May 1998)
CH12 Nov. 1998 Changes in USDA-DHIA genetic evaluations (November 1998)
CH13 Feb. 1999Changes in USDA-DHIA genetic evaluations (February 1999)
CH14 May 1999 Current and planned changes in USDA-DHIA genetic evaluations (May 1999)

DPR1 Nov. 2002 Daughter pregnancy rate evaluation of cow fertility

Genomic1 Apr. 2010 Imputation of cow genotypes and adjustment of PTAs
Genomic2 Apr. 2012 Use of chromosomal predicted transmitting abilities
Genomic3 Dec. 2018 Haplotype tests for recessive disorders that affect fertility and other traits (replaced by Genomic4)
Genomic4 Dec. 2018 Haplotype tests for economically important traits of dairy cattle (replaces Genomic3)
Genomic5 Dec. 2020 Haplotype tests for economically important traits of dairy cattle (update)

HIST1 Oct. 2008 The USDA Animal Improvement Programs Laboratory: A century old and just getting started

K2-97 May 1999 State and national standardized lactation averages by breed for cows calving in 1997
K2-98 May 2000 State and national standardized lactation averages by breed for cows calving in 1998
K2-99 Mar. 2001 State and national standardized lactation averages by breed for cows calving in 1999
K2-00 Mar. 2002 State and national standardized lactation averages by breed for cows calving in 2000
K2-01 Feb. 2003 State and national standardized lactation averages by breed for cows calving in 2001
K2-02 Feb. 2004 State and national standardized lactation averages by breed for cows calving in 2002
K2-03 Feb. 2005 State and national standardized lactation averages by breed for cows calving in 2003
K2-04 Mar. 2006 State and national standardized lactation averages by breed for cows calving in 2004
K2-05 Feb. 2007 State and national standardized lactation averages by breed for cows calving in 2005
K2-06 Mar. 2008 State and national standardized lactation averages by breed for cows calving in 2006
K2-07 Feb. 2009 State and national standardized lactation averages by breed for cows calving in 2007
K2-08 Feb. 2010 State and national standardized lactation averages by breed for cows calving in 2008
K2-09 Feb. 2011 State and national standardized lactation averages by breed for cows calving in 2009
K2-10 Feb. 2012 State and national standardized lactation averages by breed for cows calving in 2010
K2-11 Feb. 2013 State and national standardized lactation averages by breed for cows calving in 2011

NFCA-CDCB1 June 2012 Background on the development of a nonfunded cooperative agreement between USDA's Agricultural Research Service (ARS) and the Council on Dairy Cattle Breeding (CDCB)

NM$1 Nov. 2000 Net merit as a measure of lifetime profit — 2000 version
NM$2 July 2003 Net merit as a measure of lifetime profit: 2003 revision
NM$3 July 2006 Net merit as a measure of lifetime profit: 2006 revision
NM$4 Dec. 2009 Net merit as a measure of lifetime profit: 2010 revision
NM$5 Oct. 2014 Net merit as a measure of lifetime profit: 2014 revision
NM$6 Feb. 2017 Net merit as a measure of lifetime profit: 2017 revision
NM$7 July 2018 Net merit as a measure of lifetime profit: 2018 revision (update)
NM$8 May 2021 Net merit as a measure of lifetime profit: 2021 revision

PL1 Jan. 2001 Revised methods to compute multitrait productive life
PL2 Nov. 2003 Methods used to predict multi-trait productive life

PROT1 June 2000 Genetic evaluations for true protein

SB1 Aug. 2006 Genetic evaluation of stillbirth

SCC1 Dec. 1999 Somatic cell counts of milk from 1998 Dairy Herd Improvement herds
SCC2 Feb. 2001 Somatic cell counts of milk from Dairy Herd Improvement herds during 1999 and 2000
SCC3 Mar. 2002 Somatic cell counts of milk from Dairy Herd Improvement herds during 2001
SCC4 Feb. 2003 Somatic cell counts of milk from Dairy Herd Improvement herds during 2002
SCC5 Feb. 2004 Somatic cell counts of milk from Dairy Herd Improvement herds during 2003
SCC6 Mar. 2005 Somatic cell counts of milk from Dairy Herd Improvement herds during 2004
SCC7 Mar. 2006 Somatic cell counts of milk from Dairy Herd Improvement herds during 2005
SCC8 Feb. 2007 Somatic cell counts of milk from Dairy Herd Improvement herds during 2006
SCC9 Mar. 2008 Somatic cell counts of milk from Dairy Herd Improvement herds during 2007
SCC10 Feb. 2009 Somatic cell counts of milk from Dairy Herd Improvement herds during 2008
SCC11 Feb. 2010 Somatic cell counts of milk from Dairy Herd Improvement herds during 2009
SCC12 Feb. 2011 Somatic cell counts of milk from Dairy Herd Improvement herds during 2010
SCC13 Feb. 2012 Somatic cell counts of milk from Dairy Herd Improvement herds during 2012
SCC14 Feb. 2013 Somatic cell counts of milk from Dairy Herd Improvement herds during 2013

SCR1 July 2008 Sire conception rate: New national AI bull fertility evaluation

Source1 Nov. 2005 Source of bulls with highest and lowest evaluations for various traits by country scale



Topic index

Topic Report no. Date Title
U.S. yield traits AB1 Apr. 2007 All-breed evaluation
CH2 July 1994 Changes in USDA-DHIA genetic evaluations (July 1994)
CH3 Jan. 1995 Changes in USDA-DHIA genetic evaluations (January 1995)
CH6 July 1996 Changes in USDA-DHIA genetic evaluations (July 1996)
CH7 Feb. 1997 Changes in USDA-DHIA genetic evaluations (February 1997)
CH9 Aug. 1997 Changes in USDA-DHIA genetic evaluations (August 1997)
CH10 Feb. 1998 Changes in USDA-DHIA genetic evaluations (February 1998)
CH12 Nov. 1998 Changes in USDA-DHIA genetic evaluations (November 1998)
CH13 Feb. 1999 Changes in USDA-DHIA genetic evaluations (February 1999)
HIST1 Oct. 2008 The USDA Animal Improvement Programs Laboratory: A century old and just getting started
K2-97 May 1999 State and national standardized lactation averages by breed for cows calving in 1997
K2-98 May 2000 State and national standardized lactation averages by breed for cows calving in 1998
K2-99 Mar. 2001 State and national standardized lactation averages by breed for cows calving in 1999
K2-00 Mar. 2002 State and national standardized lactation averages by breed for cows calving in 2000
K2-01 Feb. 2003 State and national standardized lactation averages by breed for cows calving in 2001
K2-02 Feb. 2004 State and national standardized lactation averages by breed for cows calving in 2002
K2-03 Feb. 2005 State and national standardized lactation averages by breed for cows calving in 2003
K2-04 Mar. 2006 State and national standardized lactation averages by breed for cows calving in 2004
K2-05 Feb. 2007 State and national standardized lactation averages by breed for cows calving in 2005
K2-06 Mar. 2008 State and national standardized lactation averages by breed for cows calving in 2006
K2-07 Feb. 2009 State and national standardized lactation averages by breed for cows calving in 2007
K2-08 Feb. 2010 State and national standardized lactation averages by breed for cows calving in 2008
K2-09 Feb. 2011 State and national standardized lactation averages by breed for cows calving in 2009
K2-10 Feb. 2012 State and national standardized lactation averages by breed for cows calving in 2010
K2-11 Feb. 2013 State and national standardized lactation averages by breed for cows calving in 2011
NM$1 Nov. 2000 Net merit as a measure of lifetime profit — 2000 version
NM$2 July 2003 Net merit as a measure of lifetime profit: 2003 revision
NM$3 July 2006 Net merit as a measure of lifetime profit: 2006 revision
NM$4 Dec. 2009 Net merit as a measure of lifetime profit: 2010 revision
NM$5 Oct. 2014 Net merit as a measure of lifetime profit: 2014 revision
NM$6 Feb. 2017 Net merit as a measure of lifetime profit: 2017 revision
NM$7 July 2018 Net merit as a measure of lifetime profit: 2018 revision (update)
PROT1 June 2000 Genetic evaluations for true protein

Foreign yield traits CH3 Jan. 1995 Changes in USDA-DHIA genetic evaluations (January 1995)
CH4 July 1995 Changes in USDA-DHIA genetic evaluations (July 1995)
CH5 Jan. 1996 Changes in USDA-DHIA genetic evaluations (January 1996)
CH7 Feb. 1997 Changes in USDA-DHIA genetic evaluations (February 1997)
CH11 June 1998 Current and planned changes in USDA-DHIA genetic evaluations (May 1998)
CH13 Feb. 1999 Changes in USDA-DHIA genetic evaluations (February 1999)
CH14 May 1999 Current and planned changes in USDA-DHIA genetic evaluations (May 1999)
Source1 Nov. 2005 Source of bulls with highest and lowest evaluations for various traits by country scale

Other traits AB1 Apr. 2007 All-breed evaluation
CE1 Jan. 2005 Brown Swiss and Holstein calving ease
CH1 Jan. 1994 Changes in USDA-DHIA genetic evaluations (January 1994)
CH2 July 1994 Changes in USDA-DHIA genetic evaluations (July 1994)
CH3 Jan. 1995 Changes in USDA-DHIA genetic evaluations (January 1995)
CH4 July 1995 Changes in USDA-DHIA genetic evaluations (July 1995)
CH5 Jan. 1996 Changes in USDA-DHIA genetic evaluations (January 1996)
CH10 Feb. 1998 Changes in USDA-DHIA genetic evaluations (February 1998)
CH13 Feb. 1999 Changes in USDA-DHIA genetic evaluations (February 1999)
CH14 May 1999 Current and planned changes in USDA-DHIA genetic evaluations (May 1999)
DPR1 Nov. 2002 Daughter pregnancy rate evaluation of cow fertility
HIST1 Oct. 2008 The USDA Animal Improvement Programs Laboratory: A century old and just getting started
NM$1 Nov. 2000 Net merit as a measure of lifetime profit — 2000 version
NM$2 July 2003 Net merit as a measure of lifetime profit: 2003 revision
NM$3 July 2006 Net merit as a measure of lifetime profit: 2006 revision
NM$4 Dec. 2009 Net merit as a measure of lifetime profit: 2010 revision
NM$5 Sept. 2014 Net merit as a measure of lifetime profit: 2014 revision
NM$6 Feb. 2017 Net merit as a measure of lifetime profit: 2017 revision
NM$7 July 2018 Net merit as a measure of lifetime profit: 2018 revision (update)
PL1 Jan. 2001 Revised methods to compute multitrait productive life
PL2 Nov. 2003 Methods used to predict multi-trait productive life
SB1 Aug. 2006 Genetic evaluation of stillbirth
SCC1 Dec. 1999 Somatic cell counts of milk from 1998 Dairy Herd Improvement herds
SCC2 Feb. 2001 Somatic cell counts of milk from Dairy Herd Improvement herds during 1999 and 2000
SCC3 Mar. 2002 Somatic cell counts of milk from Dairy Herd Improvement herds during 2001
SCC4 Feb. 2003 Somatic cell counts of milk from Dairy Herd Improvement herds during 2002
SCC5 Feb. 2004 Somatic cell counts of milk from Dairy Herd Improvement herds during 2003
SCC6 Mar. 2005 Somatic cell counts of milk from Dairy Herd Improvement herds during 2004
SCC7 Mar. 2006 Somatic cell counts of milk from Dairy Herd Improvement herds during 2005
SCC8 Feb. 2007 Somatic cell counts of milk from Dairy Herd Improvement herds during 2006
SCC9 Mar. 2008 Somatic cell counts of milk from Dairy Herd Improvement herds during 2007
SCC10 Feb. 2009 Somatic cell counts of milk from Dairy Herd Improvement herds during 2008
SCC11 Feb. 2010 Somatic cell counts of milk from Dairy Herd Improvement herds during 2009
SCC12 Feb. 2011 Somatic cell counts of milk from Dairy Herd Improvement herds during 2010
SCC13 Feb. 2012 Somatic cell counts of milk from Dairy Herd Improvement herds during 2011
SCC14 Feb. 2013 Somatic cell counts of milk from Dairy Herd Improvement herds during 2013
SCR1 July 2008 Sire conception rate: New national AI bull fertility evaluation
Source1 Nov. 2005 Source of bulls with highest and lowest evaluations for various traits by country scale

Delivery and base AB1 Apr. 2007 All-breed evaluation
AWD1 Nov. 1998 Enhancing genetic improvement for milk yield by reducing generation interval
Base1 Oct. 2004 Genetic base changes for February 2005
Base2 Aug. 2009 Genetic base changes for January 2010
Base3 Oct. 2014 Genetic base changes for December2014
CE1 Jan. 2005 Brown Swiss and Holstein calving ease
CH1 Jan. 1994 Changes in USDA-DHIA genetic evaluations (January 1994)
CH3 Jan. 1995 Changes in USDA-DHIA genetic evaluations (January 1995)
CH7 Feb. 1997 Changes in USDA-DHIA genetic evaluations (February 1997)
CH8 May 1997 Changes in USDA-DHIA genetic evaluations (May 1997)
CH13 Feb. 1999 Changes in USDA-DHIA genetic evaluations (February 1999)
DPR1 Nov. 2002 Daughter pregnancy rate evaluation of cow fertility
HIST1 Oct. 2008 The USDA Animal Improvement Programs Laboratory: A century old and just getting started
NFCA-CDCB1 June 2012 Background on the development of a nonfunded cooperative agreement between USDA's Agricultural Research Service (ARS) and the Council on Dairy Cattle Breeding (CDCB)

Identification and inbreeding AB1 Apr. 2007 All-breed evaluation
CH10 Feb. 1998 Changes in USDA-DHIA genetic evaluations (February 1998)
CH12 Nov. 1998 Changes in USDA-DHIA genetic evaluations (November 1998)
CH13 Feb. 1999 Changes in USDA-DHIA genetic evaluations (February 1999)
CH14 May 1999 Current and planned changes in USDA-DHIA genetic evaluations (May 1999)
HIST1 Oct. 2008 The USDA Animal Improvement Programs Laboratory: A century old and just getting started

Edits and corrections CH13 Feb. 1999 Changes in USDA-DHIA genetic evaluations (February 1999)
CH14 May 1999 Current and planned changes in USDA-DHIA genetic evaluations (May 1999)

Management Cull1 Sept. 2009 Reasons that cows in Dairy Herd Improvement programs exit the herd

Genomics Genomic1 Apr. 2010 Imputation of cow genotypes and adjustment of PTAs
Genomic2 Apr. 2012 Use of chromosomal predicted transmitting abilities
Genomic3 Dec. 2018 Haplotype tests for recessive disorders that affect fertility and other traits (replaced by Genomic4)
Genomic4 Dec. 2018 Haplotype tests for economically important traits of dairy cattle replaces Genomic3)
Genomic5 Dec. 2020 Haplotype tests for economically important traits of dairy cattle (update)


Last Modified: 07/22/2021