D. J. Napper

980 citations

17 papers · 805 indexed · h-index 15

Impact in

Agronomy and Crop Science top 1%
- Ruminant Nutrition and Digestive Physiology
- Reproductive Physiology in Livestock
Genetics top 5%
- Genetic and phenotypic traits in livestock

Papers in ⓘ

Agronomy and Crop Science 12
- Ruminant Nutrition and Digestive Physiology 10
- Reproductive Physiology in Livestock 10
Genetics 10
- Genetic and phenotypic traits in livestock 9

Co-authors: John Sutton (10 shared papers)S. V. Morant (3 shared papers)M.S. Dhanoa (2 shared papers)E Schuller (3 shared papers)J. France (1 shared paper)J. A. Bines (5 shared papers)W. H. Broster (5 shared papers)J. D. Oldham (2 shared papers)
Journals: The Journal of Agricultural Science (5 papers)British Journal Of Nutrition (4 papers)Genetics in Medicine (2 papers)Journal of Dairy Science (2 papers)SpringerPlus (1 paper)
Partner nations: United States United Kingdom China

In The Last Decade

D. J. Napper

17 papers receiving 716 citations

Peers

Countries citing papers authored by D. J. Napper

Since Specialization

Citations

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

Fields of papers citing papers by D. J. Napper

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by D. J. Napper. 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 D. J. Napper. The network helps show where D. J. Napper may publish in the future.

Co-authors

The 25 scholars most cited alongside D. J. Napper, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with D. J. Napper Line = papers co-authored together D. J. Napper links everyone, so they are left out of the graph.

All Works

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17 of 17 papers shown

#	Work
1	Rates of Production of Acetate, Propionate, and Butyrate in the Rumen of Lactating Dairy Cows Given Normal and Low-Roughage Diets Journal of Dairy Science ·John Sutton, M.S. Dhanoa, S. V. Morant, J. France, D. J. Napper, E Schuller	2003	236
2	A comparison of starchy and fibrous concentrates for milk production, energy utilization and hay intake by Friesian cows The Journal of Agricultural Science ·John Sutton, J. A. Bines, S. V. Morant, D. J. Napper, D. J. Givens	1987	89
3	Rumen fill and digesta kinetics in lactating Friesian cows given two levels of concentrates with two types of grass silage ad lib British Journal Of Nutrition ·J. Gasa, K. Holtenius, John Sutton, M.S. Dhanoa, D. J. Napper	1991	60
4	The Influence of Insulin and Amino Acid Supply on Amino Acid Uptake by the Lactating Bovine Mammary Gland Journal of Dairy Science ·J.A. Metcalf, John Sutton, J. E. Cockburn, D. J. Napper, D. E. Beever	1991	48
5	The effect of a low-protein ration on milk yield and plasma metabolites in Friesian heifers during early lactation British Journal Of Nutrition ·J. D. Oldham, W. H. Broster, D. J. Napper, J. W. Siviter	1979	45
6	Feeding frequency for lactating cows: effects on digestion, milk production and energy utilization British Journal Of Nutrition ·John Sutton, W. H. Broster, D. J. Napper, J. W. Siviter	1985	44
7	Influence of plane of nutrition and diet composition on rumen fermentation and energy utilization by dairy cows The Journal of Agricultural Science ·John Sutton, W. H. Broster, E Schuller, D. J. Napper, Valerie J. Broster, J. A. Bines	1988	43
8	Performance of dairy cows offered isonitrogenous diets containing urea or fishmeal in early and in mid-lactation British Journal Of Nutrition ·J. D. Oldham, D. J. Napper, Tim Smith, Rosemary J. Fulford	1985	40
9	The influence of plane of nutrition and diet composition on the performance of dairy cows The Journal of Agricultural Science ·W. H. Broster, John Sutton, J. A. Bines, Valerie J. Broster, Tim Smith, J. W. Siviter, V. W. Johnson, D. J. Napper, E Schuller	1985	37
10	Association of IL-13, RANTES, and leukotriene C4 synthase gene promoter polymorphisms with asthma and/or atopy in African Americans Genetics in Medicine ·Ioannis Moissidis, Birjis Chinoy, Krishna Yanamandra, D. J. Napper, Theodore F. Thurmon, Joseph A. Bocchini, Sami L. Bahna	2005	35
11	Effect of altering the starch: fibre ratio in the concentrates on hay intake and milk production by Friesian cows The Journal of Agricultural Science ·John Sutton, S. V. Morant, J. A. Bines, D. J. Napper, D.I. Givens	1993	32
12	Rumen fermentation characteristics and duodenal nutrient flow in lactating cows receiving two types of grass silage with two levels of concentrates Animal Feed Science and Technology ·A. B. McAllan, John Sutton, D. E. Beever, D. J. Napper	1994	24
13	Effect of amount consumed and diet composition on the apparent digestibility of feed in cattle and sheep The Journal of Agricultural Science ·J. A. Bines, W. H. Broster, John Sutton, Valerie J. Broster, D. J. Napper, Tim Smith, J. W. Siviter	1988	23
14	Endothelial Nitric Oxide Synthase genotypes in the etiology of retinopathy of prematurity in premature infants Ophthalmic Genetics ·Krishna Yanamandra, D. J. Napper, Sabyasachi Pramanik, Joseph A. Bocchini, Ramasubbareddy Dhanireddy	2010	20
15	Is an endothelial nitric oxide synthase gene mutation a risk factor in the origin of intraventricular hemorrhage? Neurosurgical FOCUS ·Prasad Vannemreddy, Christina Notarianni, Krishna Yanamandra, D. J. Napper, Joseph A. Bocchini	2009	16
16	The prevalence of platelet activating factor acetylhydrolase single nucleotide polymorphisms in relationship to necrotizing enterocolitis in Northwest Louisiana infants SpringerPlus ·Senthilkumar Sankararaman, Krishna Yanamandra, D. J. Napper, Gloria Caldito, Ramasubbareddy Dhanireddy	2013	12
17	Prevalence of Methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism in Northwest Louisiana newborn population Genetics in Medicine ·Krishna Yanamandra, D. J. Napper, D.W. Jalanivich, Theodore F. Thurmon	2000	1

About D. J. Napper

D. J. Napper is a scholar working on Agronomy and Crop Science, Genetics, Pulmonary and Respiratory Medicine, Animal Science and Zoology and Physiology, having authored 17 papers that have together received 805 indexed citations. Recurring topics across this work include Ruminant Nutrition and Digestive Physiology (10 papers), Reproductive Physiology in Livestock (10 papers), Genetic and phenotypic traits in livestock (9 papers), Neonatal Respiratory Health Research (3 papers), Pasture and Agricultural Systems (1 paper), Animal Nutrition and Physiology (1 paper), Neuroscience of respiration and sleep (1 paper) and Allergic Rhinitis and Sensitization (1 paper). The work is most often cited by research in Agronomy and Crop Science (657 citations), Genetics (381 citations), Animal Science and Zoology (125 citations), Forestry (28 citations) and Environmental Chemistry (59 citations). D. J. Napper has collaborated with scholars based in United States, United Kingdom and China. Frequent co-authors include John Sutton, S. V. Morant, M.S. Dhanoa, E Schuller, J. France, J. A. Bines, W. H. Broster, J. D. Oldham, Tim Smith and Valerie J. Broster. Their work appears in journals such as The Journal of Agricultural Science, British Journal Of Nutrition, Genetics in Medicine, Journal of Dairy Science and SpringerPlus.

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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