Nicola Walker

3.1k total citations · 1 hit paper
54 papers, 2.3k citations indexed

About

Nicola Walker is a scholar working on Agronomy and Crop Science, Animal Science and Zoology and Genetics. According to data from OpenAlex, Nicola Walker has authored 54 papers receiving a total of 2.3k indexed citations (citations by other indexed papers that have themselves been cited), including 45 papers in Agronomy and Crop Science, 16 papers in Animal Science and Zoology and 10 papers in Genetics. Recurrent topics in Nicola Walker's work include Ruminant Nutrition and Digestive Physiology (45 papers), Reproductive Physiology in Livestock (16 papers) and Genetic and phenotypic traits in livestock (10 papers). Nicola Walker is often cited by papers focused on Ruminant Nutrition and Digestive Physiology (45 papers), Reproductive Physiology in Livestock (16 papers) and Genetic and phenotypic traits in livestock (10 papers). Nicola Walker collaborates with scholars based in United Kingdom, United States and Canada. Nicola Walker's co-authors include À. Bach, Frédérique Chaucheyras‐Durand, Lucy P. Meagher, Subathira Sivakumaran, D. Pacheco, Graeme T. Attwood, M.H. Tavendale, C. J. Newbold, Nest McKain and R. J. Wallace and has published in prestigious journals such as SHILAP Revista de lepidopterología, Applied and Environmental Microbiology and Journal of Dairy Science.

In The Last Decade

Nicola Walker

54 papers receiving 2.1k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Methane production from in vitro rumen incubations with Lotus pedunculatus and Medicago sativa, and effects of extractable condensed tannin fractions on methanogenesis

2005 432 citations Nicola Walker et al. profile →

Peers

Countries citing papers authored by Nicola Walker

Since Specialization

Citations

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

Fields of papers citing papers by Nicola Walker

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Nicola Walker

This figure shows the co-authorship network connecting the top 25 collaborators of Nicola Walker. A scholar is included among the top collaborators of Nicola Walker 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 Nicola Walker. Nicola Walker is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	The effect of feeding and visiting behavior on methane and hydrogen emissions of dairy cattle measured with the GreenFeed system under different dietary conditions 2024 ·Journal of Dairy Science ·(unknown), A. Bannink, J. Dijkstra, Nicola Walker, Sanne van Gastelen	5
2	Evaluating the impact of 3-nitrooxypropanol supplementation on enteric methane emissions in pregnant nonlactating dairy cows offered grass silage 2024 ·SHILAP Revista de lepidopterología ·(unknown), L. Shalloo, (unknown), Nicola Walker, (unknown)	1
3	Long-term effects of 3-nitrooxypropanol on methane emission and milk production characteristics in Holstein-Friesian dairy cows 2024 ·Journal of Dairy Science ·Sanne van Gastelen, (unknown), J. Dijkstra, (unknown), (unknown), Nicola Walker, A. Bannink	33
4	The effect of twice daily 3-nitroxypropanol supplementation on enteric methane emissions in grazing dairy cows 2024 ·Journal of Dairy Science ·(unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), Nicola Walker, (unknown), (unknown)	9
5	343 Combination of Feed Additives to Reduce Methane Emissions and Increase Performance By Feedlot Cattle 2023 ·Journal of Animal Science ·(unknown), (unknown), (unknown), (unknown), (unknown), (unknown), Tiago S Acedo, (unknown), Nicola Walker, Maik Kindermann, (unknown), Ricardo Andrade Reis	1
6	Gas exchange, rumen hydrogen sinks, and nutrient digestibility and metabolism in lactating dairy cows fed 3-nitrooxypropanol and cracked rapeseed 2023 ·Journal of Dairy Science ·(unknown), Martin Riis Weisbjerg, Mogens Larsen, Ole Højberg, Claes Ohlsson, Nicola Walker, Anne Louise Frydendahl Hellwing, Peter Lund	17
7	Effects of dietary supplementation with 3-nitrooxypropanol on enteric methane production, rumen fermentation, and performance in young growing beef cattle offered a 50:50 forage:concentrate diet 2023 ·Journal of Animal Science ·(unknown), Luis Fernando Monteiro Tamassia, Nicola Walker, Alexios Karagiannis, Maik Kindermann, Sinéad M. Waters	7
8	Methane mitigation potential of 3-nitrooxypropanol in lactating cows is influenced by basal diet composition 2022 ·Journal of Dairy Science ·Sanne van Gastelen, J. Dijkstra, J.M.L. Heck, Maik Kindermann, A. Klop, (unknown), (unknown), Nicola Walker, A. Bannink	50
9	3-Nitrooxypropanol substantially decreased enteric methane emissions of dairy cows fed true protein- or urea-containing diets 2022 ·Heliyon ·(unknown), Camila Muñoz, (unknown), Natalie L. Urrutia, (unknown), (unknown), Irmgard Immig, Maik Kindermann, Nicola Walker, Emilio M. Ungerfeld	11
10	Enteric methane emission, milk production, and composition of dairy cows fed 3-nitrooxypropanol 2020 ·Journal of Dairy Science ·A. Melgar, (unknown), K. Nedelkov, S.E. Räisänen, H. Stefenoni, M.E. Fetter, Xianjiang Chen, J. Oh, Stéphane Duval, Maik Kindermann, Nicola Walker, A.N. Hristov	57
11	An Investigation into Rumen Fungal and Protozoal Diversity in Three Rumen Fractions, during High-Fiber or Grain-Induced Sub-Acute Ruminal Acidosis Conditions, with or without Active Dry Yeast Supplementation 2017 ·Frontiers in Microbiology ·Suzanne L. Ishaq, Ousama AlZahal, Nicola Walker, B.W. McBride	44
12	Effect of yeast supplementation on performance, rumination time, and rumen pH of dairy cows in commercial farm environments 2017 ·Journal of Dairy Science ·(unknown), N.S. Jessop, R.H. Fawcett, Mike Webster, Darren J. Shaw, Nicola Walker, Alastair Macrae	21
13	Effect of wheat dried distillers grains and enzyme supplementation on growth rates, feed conversion ratio and beef fatty acid profile in feedlot steers 2015 ·animal ·Zhixiong He, Ming He, (unknown), Lei Xu, Nicola Walker, K. A. Beauchemin, Tim A. McAllister, Wen Yang	11
14	Effects of an exogenous protease on the fermentation and nutritive value of corn silage harvested at different dry matter contents and ensiled for various lengths of time 2014 ·Journal of Dairy Science ·(unknown), Nicola Walker, L. Kung	40
15	The effect of an exogenous protease on the fermentation and nutritive value of high-moisture corn 2014 ·Journal of Dairy Science ·L. Kung, (unknown), Nicola Walker	30
16	Differing effects of 2 active dried yeast (Saccharomyces cerevisiae) strains on ruminal acidosis and methane production in nonlactating dairy cows 2011 ·Journal of Dairy Science ·Yao-Liang Chung, Nicola Walker, S. M. McGinn, K. A. Beauchemin	99
17	Relation between phylogenetic position, lipid metabolism and butyrate production by different Butyrivibrio-like bacteria from the rumen 2006 ·Antonie van Leeuwenhoek ·Delphine Paillard, Nest McKain, L.C. Chaudhary, Nicola Walker, (unknown), I. Koppová, Neil McEwan, J Kopečný, Philip E. Vercoe, Petra Louis, R. J. Wallace	133
18	Influence of Dipeptidyl Peptidase Inhibitors on Growth, Peptidase Activity, and Ammonia Production by Ruminal Microorganisms 2004 ·Current Microbiology ·Hongrong Wang, Nest McKain, Nicola Walker, R. J. Wallace	5
19	Cleavage of di- and tripeptides by Prevotella ruminicola 1995 ·Anaerobe ·R. J. Wallace, J Kopečný, G.A. Broderick, Nicola Walker, Sichao Liu, C. J. Newbold, Nest McKain	10
20	The effect of tetronasin and monensin on fermentation, microbial numbers and the development of ionophore‐resistant bacteria in the rumen 1993 ·Journal of Applied Bacteriology ·C. J. Newbold, R. J. Wallace, Nicola Walker	40

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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