Ralf Bortfeldt

940 total citations
32 papers, 546 citations indexed

About

Ralf Bortfeldt is a scholar working on Genetics, Molecular Biology and Agronomy and Crop Science. According to data from OpenAlex, Ralf Bortfeldt has authored 32 papers receiving a total of 546 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Genetics, 10 papers in Molecular Biology and 7 papers in Agronomy and Crop Science. Recurrent topics in Ralf Bortfeldt's work include Genetic and phenotypic traits in livestock (12 papers), Genetic Mapping and Diversity in Plants and Animals (7 papers) and Reproductive Physiology in Livestock (4 papers). Ralf Bortfeldt is often cited by papers focused on Genetic and phenotypic traits in livestock (12 papers), Genetic Mapping and Diversity in Plants and Animals (7 papers) and Reproductive Physiology in Livestock (4 papers). Ralf Bortfeldt collaborates with scholars based in Germany, Switzerland and Egypt. Ralf Bortfeldt's co-authors include Gudrun A. Brockmann, Jens Tetens, Markus Jung, Martin Schulze, Stefan Schuster, Monika Reißmann, Martin Pöhl, Konrad Grützmann, Eva M. Strucken and Armin O. Schmitt and has published in prestigious journals such as SHILAP Revista de lepidopterología, Bioinformatics and PLoS ONE.

In The Last Decade

Ralf Bortfeldt

32 papers receiving 532 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ralf Bortfeldt Germany 15 222 152 111 86 71 32 546
Chandra Sekhar Mukhopadhyay India 12 135 0.6× 279 1.8× 88 0.8× 93 1.1× 209 2.9× 80 630
Eyal Klipper Israel 18 104 0.5× 140 0.9× 318 2.9× 91 1.1× 60 0.8× 21 680
Xiangpeng Yue China 15 272 1.2× 147 1.0× 204 1.8× 46 0.5× 75 1.1× 47 567
Kuiqing Cui China 14 213 1.0× 368 2.4× 81 0.7× 73 0.8× 73 1.0× 54 651
Xiaomei Sun China 13 96 0.4× 208 1.4× 26 0.2× 58 0.7× 135 1.9× 48 501
En-Chung Lin Taiwan 12 172 0.8× 180 1.2× 33 0.3× 85 1.0× 21 0.3× 41 439
Marion Schmicke Germany 14 174 0.8× 78 0.5× 317 2.9× 44 0.5× 34 0.5× 74 688
Noriaki IMAEDA Japan 10 127 0.6× 70 0.5× 74 0.7× 68 0.8× 35 0.5× 34 416
P. Brym Poland 13 257 1.2× 101 0.7× 134 1.2× 90 1.0× 103 1.5× 38 508

Countries citing papers authored by Ralf Bortfeldt

Since Specialization
Citations

This map shows the geographic impact of Ralf Bortfeldt'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 Ralf Bortfeldt with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ralf Bortfeldt more than expected).

Fields of papers citing papers by Ralf Bortfeldt

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ralf Bortfeldt. 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 Ralf Bortfeldt. The network helps show where Ralf Bortfeldt may publish in the future.

Co-authorship network of co-authors of Ralf Bortfeldt

This figure shows the co-authorship network connecting the top 25 collaborators of Ralf Bortfeldt. A scholar is included among the top collaborators of Ralf Bortfeldt 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 Ralf Bortfeldt. Ralf Bortfeldt 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.
Schulze, Martin, Sophie Beyer, Frederike Beyer, et al.. (2020). Relationship between pubertal testicular ultrasonographic evaluation and future reproductive performance potential in Piétrain boars. Theriogenology. 158. 58–65. 5 indexed citations
2.
Bortfeldt, Ralf, et al.. (2019). Impact of hygiene on bacterial contamination in extended boar semen: An eight-year retrospective study of 28 European AI centers. Theriogenology. 146. 133–139. 28 indexed citations
3.
Großfeld, R., et al.. (2019). Development of predictive models for boar semen quality. Theriogenology. 134. 129–140. 14 indexed citations
4.
Schulze, Martin, Gábor Á. Czirják, K. Müller, et al.. (2018). Antibacterial defense and sperm quality in boar ejaculates. Journal of Reproductive Immunology. 131. 13–20. 12 indexed citations
5.
Fuchs-Kittowski, Frank, et al.. (2018). TransportLog 1.0 - Mobile Sensing-App zur Analyse des Einflusses von Transportstress auf die Eberspermaqualität.. Publikationsdatenbank der Fraunhofer-Gesellschaft (Fraunhofer-Gesellschaft). 83–86. 1 indexed citations
6.
Schulze, Martin, et al.. (2018). Effect of vibration emissions during shipping of artificial insemination doses on boar semen quality. Animal Reproduction Science. 192. 328–334. 28 indexed citations
7.
Wirthgen, Elisa, Ralf Bortfeldt, Sarah Peter, et al.. (2018). Increased Concentrations of Insulin-Like Growth Factor Binding Protein (IGFBP)-2, IGFBP-3, and IGFBP-4 Are Associated With Fetal Mortality in Pregnant Cows. Frontiers in Endocrinology. 9. 310–310. 11 indexed citations
8.
Bortfeldt, Ralf, et al.. (2016). Milk protein polymorphisms and casein haplotypes in Butana cattle. Journal of Applied Genetics. 58(2). 261–271. 16 indexed citations
9.
Bortfeldt, Ralf, et al.. (2014). The role of obesity genes for milk fat yield in Holstein dairy cattle. Proceedings of the World Congress on Genetics Applied to Livestock Production. 457. 2 indexed citations
10.
Bortfeldt, Ralf, et al.. (2014). Short communication: Validation of somatic cell score–associated loci identified in a genome-wide association study in German Holstein cattle. Journal of Dairy Science. 97(4). 2481–2486. 17 indexed citations
11.
Bortfeldt, Ralf, et al.. (2014). Single nucleotide polymorphism and haplotype effects associated with somatic cell score in German Holstein cattle. Genetics Selection Evolution. 46(1). 35–35. 44 indexed citations
12.
Pöhl, Martin, Ralf Bortfeldt, Konrad Grützmann, & Stefan Schuster. (2013). Alternative splicing of mutually exclusive exons—A review. Biosystems. 114(1). 31–38. 56 indexed citations
13.
Schäfer, Nadine, Zhonghao Yu, Asja Wagener, et al.. (2013). Changes in metabolite profiles caused by genetically determined obesity in mice. Metabolomics. 10(3). 461–472. 21 indexed citations
14.
Bortfeldt, Ralf, et al.. (2013). Impact of Variation at the FTO Locus on Milk Fat Yield in Holstein Dairy Cattle. PLoS ONE. 8(5). e63406–e63406. 24 indexed citations
15.
Bortfeldt, Ralf, Stefan Schuster, & Ina Koch. (2011). Exhaustive Analysis of the Modular Structure of the Spliceosomal Assembly Network: A Petri Net Approach. Studies in health technology and informatics. 162. 244–78. 4 indexed citations
16.
Bortfeldt, Ralf, et al.. (2011). BDNF Contributes to the Genetic Variance of Milk Fat Yield in German Holstein Cattle. SHILAP Revista de lepidopterología. 2. 16–16. 12 indexed citations
17.
Günther, Torsten, Armin O. Schmitt, Ralf Bortfeldt, et al.. (2011). Where in the Genome Are Significant Single Nucleotide Polymorphisms from Genome-Wide Association Studies Located?. OMICS A Journal of Integrative Biology. 15(7-8). 507–512. 8 indexed citations
18.
Bortfeldt, Ralf, Stefan Schuster, & Ina Koch. (2010). Exhaustive Analysis of the Modular Structure of the Spliceosomal Assembly Network: A Petri Net Approach. In Silico Biology. 10(1,2). 89–123. 12 indexed citations
19.
Schmitt, Armin O., Ralf Bortfeldt, & Gudrun A. Brockmann. (2010). Tracking chromosomal positions of oligomers - a case study with Illumina's BovineSNP50 beadchip. BMC Genomics. 11(1). 80–80. 7 indexed citations
20.
Störk, Theresa, H. Eichstädt, Martin Möckel, et al.. (1992). Changes of diastolic function induced by cigarette smoking: An echocardiographic study in patients with coronary artery disease. Clinical Cardiology. 15(2). 80–86. 28 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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