P.J. Berger

3.8k total citations
73 papers, 3.0k citations indexed

About

P.J. Berger is a scholar working on Genetics, Agronomy and Crop Science and Animal Science and Zoology. According to data from OpenAlex, P.J. Berger has authored 73 papers receiving a total of 3.0k indexed citations (citations by other indexed papers that have themselves been cited), including 51 papers in Genetics, 35 papers in Agronomy and Crop Science and 18 papers in Animal Science and Zoology. Recurrent topics in P.J. Berger's work include Genetic and phenotypic traits in livestock (51 papers), Reproductive Physiology in Livestock (25 papers) and Genetic Mapping and Diversity in Plants and Animals (12 papers). P.J. Berger is often cited by papers focused on Genetic and phenotypic traits in livestock (51 papers), Reproductive Physiology in Livestock (25 papers) and Genetic Mapping and Diversity in Plants and Animals (12 papers). P.J. Berger collaborates with scholars based in United States, Ireland and Pakistan. P.J. Berger's co-authors include A.E. Freeman, C.M.B. Dematawewa, R.D. Shanks, L.B. Hansen, Michael Messner, Kenneth J. Koehler, David H. Kelley, John R. Thompson, Sharon P. Nappier and R.C. Laben and has published in prestigious journals such as Journal of Nutrition, Journal of Dairy Science and Journal of Animal Science.

In The Last Decade

P.J. Berger

72 papers receiving 2.7k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
P.J. Berger United States 32 2.2k 2.0k 855 542 192 73 3.0k
J. W. Oltjen United States 24 931 0.4× 1.3k 0.7× 832 1.0× 234 0.4× 123 0.6× 97 2.2k
Marcos Inácio Marcondes Brazil 26 942 0.4× 1.9k 1.0× 976 1.1× 306 0.6× 216 1.1× 205 2.5k
P.A. Oltenacu United States 32 1.7k 0.8× 2.1k 1.0× 751 0.9× 661 1.2× 143 0.7× 94 2.8k
D. Pellerin Canada 28 813 0.4× 1.4k 0.7× 951 1.1× 1.2k 2.3× 290 1.5× 97 2.5k
D.M. Galton United States 26 534 0.2× 1.3k 0.7× 414 0.5× 390 0.7× 111 0.6× 46 1.9k
G. M. Jones United States 17 1.1k 0.5× 2.0k 1.0× 598 0.7× 404 0.7× 119 0.6× 68 2.5k
G.W. Rogers United States 27 1.4k 0.6× 1.4k 0.7× 659 0.8× 419 0.8× 88 0.5× 59 2.0k
G.E. Shook United States 25 1.7k 0.8× 2.0k 1.0× 571 0.7× 455 0.8× 174 0.9× 70 2.9k
E. Kennedy Ireland 31 985 0.5× 1.7k 0.9× 756 0.9× 941 1.7× 148 0.8× 130 2.7k
M. O’Donovan Ireland 28 771 0.4× 1.7k 0.8× 430 0.5× 163 0.3× 152 0.8× 100 2.3k

Countries citing papers authored by P.J. Berger

Since Specialization
Citations

This map shows the geographic impact of P.J. Berger's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by P.J. Berger with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites P.J. Berger more than expected).

Fields of papers citing papers by P.J. Berger

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by P.J. Berger. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by P.J. Berger. The network helps show where P.J. Berger may publish in the future.

Co-authorship network of co-authors of P.J. Berger

This figure shows the co-authorship network connecting the top 25 collaborators of P.J. Berger. A scholar is included among the top collaborators of P.J. Berger based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with P.J. Berger. P.J. Berger is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Berger, P.J., et al.. (2025). Improving groundwater treatment decisions using Giardia and total aerobic spores to assess surface water influence. AQUA - Water Infrastructure Ecosystems and Society. 74(2). 186–198.
2.
Mattioli, Mia, Katharine M. Benedict, Jennifer L. Murphy, et al.. (2020). Identifying septic pollution exposure routes during a waterborne norovirus outbreak - A new application for human-associated microbial source tracking qPCR. Journal of Microbiological Methods. 180. 106091–106091. 25 indexed citations
3.
Berger, P.J., et al.. (2010). A Bayesian threshold-linear model evaluation of perinatal mortality, dystocia, birth weight, and gestation length in a Holstein herd. Journal of Dairy Science. 94(1). 450–460. 53 indexed citations
4.
Dentine, M.R., et al.. (2004). Evidence for quantitative trait loci affecting twinning rate in North American Holstein cattle. Animal Genetics. 35(3). 206–212. 34 indexed citations
5.
Berger, P.J., et al.. (2003). Birth Weight as a Predictor of Calving Ease and Perinatal Mortality in Holstein Cattle. Journal of Dairy Science. 86(11). 3745–3755. 292 indexed citations
6.
Berger, P.J., et al.. (2000). Interactions among Factors Affecting Stillbirths in Holstein Cattle in the United States. Journal of Dairy Science. 83(11). 2657–2663. 94 indexed citations
7.
Berger, P.J., John R. Thompson, & C.G. Sattler. (1998). Preliminary investigations on the feasibility of a stillbirth evaluation in the USA. Bulletin - International Bull Evaluation Service/Interbull bulletin. 28. 6 indexed citations
8.
Dematawewa, C.M.B., et al.. (1998). Optimization of Sire Selection Based on Maximization of Guaranteed Income and Risk Associated with Sire Merit. Journal of Dairy Science. 81(3). 807–816. 2 indexed citations
9.
Dematawewa, C.M.B. & P.J. Berger. (1998). Break-Even Cost of Cloning in Genetic Improvement of Dairy Cattle. Journal of Dairy Science. 81(4). 1136–1147. 15 indexed citations
10.
Dematawewa, C.M.B. & P.J. Berger. (1998). Genetic and Phenotypic Parameters for 305-Day Yield, Fertility, and Survival in Holsteins. Journal of Dairy Science. 81(10). 2700–2709. 216 indexed citations
11.
Berger, P.J., et al.. (1997). Effect of Dystocia on Yield, Fertility, and Cow Losses and an Economic Evaluation of Dystocia Scores for Holsteins. Journal of Dairy Science. 80(4). 754–761. 201 indexed citations
12.
Rekik, B. & P.J. Berger. (1997). Predictability of Bull Merit from Genetic Evaluations of Sires and Maternal Grandsires Using an Animal Model. Journal of Dairy Science. 80(5). 957–964. 1 indexed citations
13.
Berger, P.J., et al.. (1992). Factors affecting dystocia and early calf mortality in Angus cows and heifers1. Journal of Animal Science. 70(6). 1775–1786. 69 indexed citations
14.
Rothschild, M. F., et al.. (1991). Genetic and phenotypic trends in Polish large white nucleus swine herds.. Journal of Animal Science. 69(2). 551–551. 11 indexed citations
15.
Rothschild, M. F., et al.. (1991). Population parameter estimates for performance and reproductive traits in Polish Large White nucleus herds.. Journal of Animal Science. 69(1). 91–91. 38 indexed citations
16.
Berger, P.J., et al.. (1987). Ordered Categorical Sire Evaluation for Dystocia in Holsteins. Journal of Dairy Science. 70(11). 2374–2384. 44 indexed citations
17.
Freeman, A.E., et al.. (1987). Reporting of Dystocia Scores and Effects of Dystocia on Production, Days Open, and Days Dry from Dairy Herd Improvement Data. Journal of Dairy Science. 70(10). 2127–2131. 44 indexed citations
18.
Thompson, John R., et al.. (1981). Evaluation of a linear type program in Holsteins [Conformation traits].. Journal of Dairy Science. 1 indexed citations
19.
Young, J.W., et al.. (1976). Effects of 1,3-Butanediol in Alleviating and Preventing Milk Fat Depression in Cows. Journal of Dairy Science. 59(3). 431–438. 1 indexed citations
20.
Topel, David G., James A. Miller, P.J. Berger, et al.. (1976). PALATABILITY AND VISUAL ACCEPTANCE OF DARK, NORMAL AND PALE COLORED PORCINE M. LONGISSIMUS. Journal of Food Science. 41(3). 628–630. 36 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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