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GR Wiggans

Research Profile

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Cattle

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Publications

TOP 3
T A Cooper; GR Wiggans; PM VanRaden
Short communication: Relationship of call rate and accuracy of single nucleotide polymorphism genotypes in dairy cattle.
JR Wright; GR Wiggans; C J Muenzenberger; R R Neitzel
Short communication: genetic evaluation of mobility for Brown Swiss dairy cattle.
PM VanRaden; GR Wiggans; T A Cooper; Jeffrey R O'Connell; L R Bacheller
Confirmation and discovery of maternal grandsires and great-grandsires in dairy cattle.

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All Publications

2013: T A Cooper; GR Wiggans; PM VanRaden
Short communication: Relationship of call rate and accuracy of single nucleotide polymorphism genotypes in dairy cattle.
Journal of dairy science 2013;96(5):3336-9.
2013: JR Wright; GR Wiggans; C J Muenzenberger; R R Neitzel
Short communication: genetic evaluation of mobility for Brown Swiss dairy cattle.
Journal of dairy science 2013;96(4):2657-60.
2013: PM VanRaden; GR Wiggans; T A Cooper; Jeffrey R O'Connell; L R Bacheller
Confirmation and discovery of maternal grandsires and great-grandsires in dairy cattle.
Journal of dairy science 2013;96(3):1874-9.
2013: GR Wiggans; T A Cooper; T S Sonstegard; Curtis Van Tassell; E B Simpson
Technical note: Characteristics and use of the Illumina BovineLD and GeneSeek Genomic Profiler low-density bead chips for genomic evaluation.
Journal of dairy science 2013;96(2):1258-63.
2013: PM VanRaden; GR Wiggans; M Winters; John B. Cole; Erin E Connor; M A Faust; D J Null; M Sargolzaei; Tad S Sonstegard; ME Tooker; A Valentini; B J Van Doormaal; J B C H M van Kaam; G A Doak
Genomic imputation and evaluation using high-density Holstein genotypes.
Journal of dairy science 2013;96(1):668-78.
2012: GR Wiggans; PM VanRaden; T A Cooper
Technical note: adjustment of all cow evaluations for yield traits to be comparable with bull evaluations.
Journal of dairy science 2012;95(6):3444-7.
2012: GR Wiggans; PM VanRaden; T A Cooper; K M Olson; ME Tooker
Use of the Illumina Bovine3K BeadChip in dairy genomic evaluation.
Journal of dairy science 2012;95(3):1552-8.
2011: GR Wiggans; T A Cooper; PM VanRaden; John B. Cole
Technical note: adjustment of traditional cow evaluations to improve accuracy of genomic predictions.
Journal of dairy science 2011;94(12):6188-93.
2011: PM VanRaden; GR Wiggans; John B. Cole; K M Olson; ME Tooker
Genomic inbreeding and relationships among Holsteins, Jerseys, and Brown Swiss.
Journal of dairy science 2011;94(11):5673-82.
2011: GR Wiggans; PM VanRaden; T A Cooper
The genomic evaluation system in the United States: past, present, future.
Journal of dairy science 2011;94(6):3202-11.
2009: GR Wiggans; Tad S Sonstegard; PM VanRaden; Lakshmi Kumar Matukumalli; R D Schnabel; Jeremy F Taylor; F S Schenkel; Curtis Van Tassell
Selection of single-nucleotide polymorphisms and quality of genotypes used in genomic evaluation of dairy cattle in the United States and Canada.
Journal of dairy science 2009;92(7):3431-6.
2009: PM VanRaden; Curtis Van Tassell; GR Wiggans; Tad S Sonstegard; R D Schnabel; Jeremy F Taylor; F S Schenkel
Invited review: reliability of genomic predictions for North American Holstein bulls.
Journal of dairy science 2009;92(1):16-24.
2008: GR Wiggans; Shogo Tsuruta; Ignacy Misztal
Technical note: adaptation of an animal-model method for approximation of reliabilities to a sire-maternal grandsire model.
Journal of dairy science 2008;91(10):4058-61.
2008: GR Wiggans; John B. Cole; L L M Thornton
Multiparity evaluation of calving ease and stillbirth with separate genetic effects by parity.
Journal of dairy science 2008;91(8):3173-8.
2007: John B. Cole; GR Wiggans; PM VanRaden; RH Miller
Stillbirth (co)variance components for a sire-maternal grandsire threshold model and development of a calving ability index for sire selection.
Journal of dairy science 2007;90(5):2489-96.
2007: John B. Cole; GR Wiggans; PM VanRaden
Genetic evaluation of stillbirth in United States Holsteins using a sire-maternal grandsire threshold model.
Journal of dairy science 2007;90(5):2480-8.
2007: PM VanRaden; ME Tooker; John B. Cole; GR Wiggans; J H Megonigal
Genetic evaluations for mixed-breed populations.
Journal of dairy science 2007;90(5):2434-41.
2007: GR Wiggans; L L M Thornton; R R Neitzel; N Gengler
Short communication: Genetic evaluation of milking speed for Brown Swiss dairy cattle in the United States.
Journal of dairy science 2007;90(2):1021-3.
2006: Melvin T Kuhn; JL Hutchison; GR Wiggans
Characterization of Holstein heifer fertility in the United States.
Journal of dairy science 2006;89(12):4907-20.
2006: GR Wiggans; L L M Thornton; R R Neitzel; N Gengler
Genetic parameters and evaluation of rear legs (rear view) for Brown Swiss and Guernseys.
Journal of dairy science 2006;89(12):4895-900.
2006: N Gengler; GR Wiggans; L L M Thornton; J R Wright; T Druet
Accounting for heterogeneous variances in multitrait evaluation of Jersey type traits.
Journal of dairy science 2006;89(8):3143-51.
2005: N Gengler; GR Wiggans; A Gillon
Adjustment for heterogeneous covariance due to herd milk yield by transformation of test-day random regressions.
Journal of dairy science 2005;88(8):2981-90.
2005: GR Wiggans; R C Goodling
Accounting for pregnancy diagnosis in predicting days open.
Journal of dairy science 2005;88(5):1873-7.
2005: John B. Cole; R C Goodling; GR Wiggans; PM VanRaden
Genetic evaluation of calving ease for Brown Swiss and Jersey bulls from purebred and crossbred calvings.
Journal of dairy science 2005;88(4):1529-39.
2004: GR Wiggans; N Gengler; JR Wright
Type trait (co)variance components for five dairy breeds.
Journal of dairy science 2004;87(7):2324-30.
2004: RH Miller; H Duane Norman; GR Wiggans; JR Wright
Relationship of test-day somatic cell score with test-day and lactation milk yields.
Journal of dairy science 2004;87(7):2299-306.
2004: PM VanRaden; AH Sanders; ME Tooker; RH Miller; H Duane Norman; Melvin T Kuhn; GR Wiggans
Development of a national genetic evaluation for cow fertility.
Journal of dairy science 2004;87(7):2285-92.
2004: N Gengler; GR Wiggans; A Gillon
Estimated heterogeneity of phenotypic variance of test-day yield with a structural variance model.
Journal of dairy science 2004;87(6):1908-16.
2003: J Bormann; GR Wiggans; T Druet; N Gengler
Within-herd effects of age at test day and lactation stage on test-day yields.
Journal of dairy science 2003;86(11):3765-74.
2003: Curtis Van Tassell; GR Wiggans; Ignacy Misztal
Implementation of a sire-maternal grandsire model for evaluation of calving ease in the United States.
Journal of dairy science 2003;86(10):3366-73.
2003: GR Wiggans; PM VanRaden; J C Philpot
Technical note: detection and adjustment of abnormal test-day yields.
Journal of dairy science 2003;86(8):2721-4.
2003: GR Wiggans; Ignacy Misztal; Curtis Van Tassell
Calving ease (Co)variance components for a sire-maternal grandsire threshold model.
Journal of dairy science 2003;86(5):1845-8.
2001: G Banos; GR Wiggans; RL Powell
Impact of paternity errors in cow identification on genetic evaluations and international comparisons.
Journal of dairy science 2001;84(11):2523-9.
2000: H Duane Norman; RH Miller; JR Wright; GR Wiggans
Herd and state means for somatic cell count from dairy herd improvement.
Journal of dairy science 2000;83(12):2782-8.
1999: DW Heyen; Joel Ira Weller; Micha Ron; Mark R Band; Jonathan E Beever; E Feldmesser; Yang Da; GR Wiggans; PM VanRaden; Harris Lewin
A genome scan for QTL influencing milk production and health traits in dairy cattle.
Physiological genomics 1999;1(3):165-75.
1999: Curtis Van Tassell; GR Wiggans; H Duane Norman
Method R estimates of heritability for milk, fat, and protein yields of United States dairy cattle.
Journal of dairy science 1999;82(10):2231-7.
1999: N Gengler; GR Wiggans; J R Wright
Animal model genetic evaluation of type traits for five dairy cattle breeds.
Journal of dairy science 1999;82(6):1350.
1999: Yang Da; PM VanRaden; M Ron; Jonathan E Beever; AA Paszek; J Song; GR Wiggans; R Ma; Joel Ira Weller; Harris Lewin
Standardization and conversion of marker polymorphism measures.
Animal biotechnology 1999;10(1-2):25-35.
1998: RL Powell; GR Wiggans; H Duane Norman
Equity of elite cow status across states.
Journal of dairy science 1998;81(9):2518-23.
1998: Kent Weigel; TJ Lawlor; PM VanRaden; GR Wiggans
Use of linear type and production data to supplement early predicted transmitting abilities for productive life.
Journal of dairy science 1998;81(7):2040-4.
1997: N Gengler; GR Wiggans; J R Wright; H Duane Norman; C W Wolfe
Application of canonical transformation with missing values to multitrait evaluation of Jersey type.
Journal of dairy science 1997;80(10):2563-71.
1997: RL Powell; GR Wiggans; M Sieber
Consistency of international genetic evaluations of Holstein bulls.
Journal of dairy science 1997;80(9):2177-83.
1997: RL Powell; PM VanRaden; GR Wiggans
Relationship between United States and Canadian genetic evaluations of longevity and somatic cell score.
Journal of dairy science 1997;80(8):1807-12.
1997: N Gengler; GR Wiggans; J R Wright; H Duane Norman; C W Wolfe
Estimation of (co)variance components for Jersey type traits using a repeatability model.
Journal of dairy science 1997;80(8):1801-6.
1997: GR Wiggans; M E Goddard
A computationally feasible test day model for genetic evaluation of yield traits in the United States.
Journal of dairy science 1997;80(8):1795-800.
1997: J K Lee; PM VanRaden; H Duane Norman; GR Wiggans; TR Meinert
Relationship of yield during early lactation and days open during current lactation with 305-day yield.
Journal of dairy science 1997;80(4):771-6.
1995: M M Schutz; PM VanRaden; GR Wiggans; H Duane Norman
Standardization of lactation means of somatic cell scores for calculation of genetic evaluations.
Journal of dairy science 1995;78(8):1843-54.
1995: GR Wiggans; PM VanRaden; J Zuurbier
Calculation and use of inbreeding coefficients for genetic evaluation of United States dairy cattle.
Journal of dairy science 1995;78(7):1584-90.
1995: PM VanRaden; GR Wiggans
Productive life evaluations: calculation, accuracy, and economic value.
Journal of dairy science 1995;78(3):631-8.
1994: RL Powell; GR Wiggans; PM VanRaden
Factors affecting calculation and use of conversion equations for genetic merit of dairy bulls.
Journal of dairy science 1994;77(9):2679-86.
1994: GR Wiggans
Meeting the needs at the national level for genetic evaluation and health monitoring.
Journal of dairy science 1994;77(7):1976-83.
1994: RL Powell; GR Wiggans; H Duane Norman
Effect of sampling status and adjustment for heterogeneous variance on bias in bull evaluations.
Journal of dairy science 1994;77(3):883-90.
1994: M M Schutz; PM VanRaden; GR Wiggans
Genetic variation in lactation means of somatic cell scores for six breeds of dairy cattle.
Journal of dairy science 1994;77(1):284-93.
1992: GR Wiggans; PM VanRaden; RL Powell
A method for combining United States and Canadian bull evaluations.
Journal of dairy science 1992;75(10):2834-9.
1992: Yang Da; M Grossman; Ignacy Misztal; GR Wiggans
Estimation of genetic parameters for somatic cell score in Holsteins.
Journal of dairy science 1992;75(8):2265-71.
1991: GR Wiggans; PM VanRaden
Method and effect of adjustment for heterogeneous variance.
Journal of dairy science 1991;74(12):4350-7.
1991: PM VanRaden; GR Wiggans; C A Ernst
Expansion of projected lactation yield to stabilize genetic variance.
Journal of dairy science 1991;74(12):4344-9.
1991: PM VanRaden; GR Wiggans
Derivation, calculation, and use of national animal model information.
Journal of dairy science 1991;74(8):2737-46.
1991: H Duane Norman; RL Powell; GR Wiggans
Comparison of genetic evaluations from animal model and modified contemporary comparison.
Journal of dairy science 1991;74(7):2309-16.
1991: RL Powell; GR Wiggans
Animal model evaluations for Mexican Holsteins.
Journal of dairy science 1991;74(4):1420-7.
1989: GR Wiggans
Animal model evaluation of dairy goats for milk, fat, and protein yields with crossbred animals included.
Journal of dairy science 1989;72(9):2411-6.
1988: GR Wiggans; J W Van Dijk; Ignacy Misztal
Genetic evaluation of dairy goats for milk and fat yield with an animal model.
Journal of dairy science 1988;71(5):1330-7.
1987: GR Wiggans; G E Shook
A lactation measure of somatic cell count.
Journal of dairy science 1987;70(12):2666-72.
1987: T A Gipson; M Grossman; GR Wiggans
Relation of registration with yield and termination of first lactation in dairy goats.
Journal of dairy science 1987;70(8):1710-8.
1987: Joel Ira Weller; GR Wiggans; T J Lawlor
Genetic evaluation of dairy goat does for milk and fat as an extension of buck evaluation.
Journal of dairy science 1987;70(3):681-6.
1986: R Bar-Anan; Joel Ira Weller; GR Wiggans; K Osterkorn
Prediction of annualized lactation yield from partial lactations.
Journal of dairy science 1986;69(7):1897-903.
1985: R Bar-Anan; M Ron; GR Wiggans
Associations among milk yield, yield persistency, conception, and culling of Israeli Holstein dairy cattle.
Journal of dairy science 1985;68(2):382-6.
1984: GR Wiggans; RL Powell
Increasing pedigree contribution to dairy sire evaluation.
Journal of dairy science 1984;67(4):893-6.
1984: M Ron; R Bar-Anan; GR Wiggans
Factors affecting conception rate of Israeli Holstein cattle.
Journal of dairy science 1984;67(4):854-60.
1984: GR Wiggans; F N Dickinson; G J King; Joel Ira Weller
Genetic evaluation of dairy goat bucks for daughter milk and fat.
Journal of dairy science 1984;67(1):201-7.
1983: R Bar-Anan; M Ron; GR Wiggans
Associations among progeny tests of single or pooled lactations.
Journal of dairy science 1983;66(3):595-600.