H.O. de Waal
- Agronomy and Crop Science top 5%
- Genetics
- Animal Science and Zoology top 5%
- Food Science top 10%
- Ecology
- Co-authors
- L.M.J. SchwalbachL. A. CardosoJ.P.C. GreylingNico L. AvenantAndré M. AlmeidaM.D. FairGernot OsthoffP.J. Botes
- Topics
- Ruminant Nutrition and Digestive Physiology (20 papers)Genetic and phenotypic traits in livestock (10 papers)Rangeland Management and Livestock Ecology (8 papers)
- Journals
- Journal of ZoologyComparative Biochemistry and Physiology Part A Molecular & Integrative PhysiologySmall Ruminant Research
- Partner nations
- South AfricaPortugalMozambique
In The Last Decade
H.O. de Waal
38 papers receiving 299 citations
Peers
Comparison fields: 5 of 57
- Agronomy and Crop Science 178
- Genetics 121
- Animal Science and Zoology 88
- Food Science 71
- Ecology 62
Countries citing papers authored by H.O. de Waal
This map shows the geographic impact of H.O. de Waal'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 H.O. de Waal with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites H.O. de Waal more than expected).
Fields of papers citing papers by H.O. de Waal
This network shows the impact of papers produced by H.O. de Waal. 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 H.O. de Waal. The network helps show where H.O. de Waal may publish in the future.
Co-authorship network of co-authors of H.O. de Waal
This figure shows the co-authorship network connecting the top 25 collaborators of H.O. de Waal. A scholar is included among the top collaborators of H.O. de Waal 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 H.O. de Waal. H.O. de Waal is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 1 | |
| 2 | 2 | |
| 3 | Herd management, milk production and reproduction of urban dairy farms in the Harar milkshed | 3 |
| 4 | A study of mineral status in the carcass of Boer goat bucks: influence of suplementation | 5 |
| 5 | 25 | |
| 6 | GROWTH AND CARCASS TRAITS OF YOUNG BOER GOAT BUCKS FED A DIET OF WINTER VELD HAY AND SUPPLEMENTED | 1 |
| 7 | In sacco dry matter disappearanceo f herbagea nd maizem eal from the rumen of lactating Dorper and Merino ewess upplementedw ith protein and energy on native pasture | 3 |
| 8 | The effects of long-term variation in rainfall and dry matter production of veld on the financial position of a beef weaner enterprise | 3 |
| 9 | Animal production from native pasture (veld) in the Free State Region - A perspective of the grazing ruminant | 25 |
| 10 | Effects of sodium chloride on sheep. 1. Diet composition, body mass changes and wool production of young Merino wethers grazing native pasture | 7 |
| 11 | 2 | |
| 12 | Supplementation of lactating Dorper and Merino ewes on Themeda cymbopogon veld. 1. Body mass changes of ewes and their lambs | 3 |
| 13 | Effects of sodium chloride on sheep. 2. Voluntary feed intake and changes in certain rumen parameters of young Merino wethers grazing native pasture | 8 |
| 14 | Supplementation of lactating Dorper and Merino ewes on Themeda cymbopogon veld. 2. Diet quality and feed intake | 6 |
| 15 | 1 | |
| 16 | The evaluation of dryland Cenchrus ciliaris l. cv Molopo for weaner calf production in the central grassveld. | 1 |
| 17 | A note on the insertion of rumen cannulae in pregnant ewes | 2 |
| 18 | Practical implications of the effect of drying and treatment on nitrogen content and in vitro digestibility of samples collected by oesophageally fistulated animals | 20 |
| 19 | Supplementing sheep with protein and phosphorus on native pasture of the central Orange Free State. 2.Feed intake, mass changes and wool production* | 11 |
| 20 | Supplementing sheep with protein and phosphorus on native pasture of the central Orange Free State. I. Diet composition, digestibility and rumen ammonia concentration | 8 |
About H.O. de Waal
H.O. de Waal is a scholar working on Agronomy and Crop Science, Forestry and Management, Monitoring, Policy and Law, having authored 44 papers that have together received 356 indexed citations. Recurring topics across this work include Ruminant Nutrition and Digestive Physiology (20 papers), Genetic and phenotypic traits in livestock (10 papers) and Rangeland Management and Livestock Ecology (8 papers). The work is most often cited by research in Agronomy and Crop Science (178 citations), Forestry (39 citations) and Animal Science and Zoology (88 citations). H.O. de Waal has collaborated with scholars based in South Africa, Portugal and Mozambique. Frequent co-authors include L.M.J. Schwalbach, L. A. Cardoso, J.P.C. Greyling, Nico L. Avenant, André M. Almeida, M.D. Fair, Gernot Osthoff, P.J. Botes, A. Hugo and А. Малан. Their work appears in journals such as Journal of Zoology, Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology and Small Ruminant Research.
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.