World's Best Scientists 2026 revealed!

D-Index & Metrics

Animal Science and Veterinary

D-Index
21
Citations
1735
World Ranking
3138
National Ranking
80

Overview

R. Molenaar is affiliated with Wageningen University & Research in the Netherlands, contributing to research primarily within the fields of Agricultural and Biological Sciences and Veterinary studies. Their scholarly work focuses on various subfields including Animal Science and Zoology, Small Animals, Aquatic Science, Parasitology, and Genetics.

The main areas of research for Molenaar centre around Animal Nutrition and Physiology, Livestock and Poultry Management, and Animal Behavior and Welfare Studies. Additional topics covered include Meat and Animal Product Quality, Rabbits related to Nutrition, Reproduction, and Health, Aquaculture Nutrition and Growth, and Bird parasitology and diseases.

Molenaar has published extensively, with frequent articles appearing in the following venues:

  • Poultry Science
  • animal
  • Applied Animal Behaviour Science
  • PLoS ONE
  • Frontiers in Veterinary Science

Recent publications include:

  • A review on yolk sac utilization in poultry, 2020, Poultry Science
  • Providing environmental enrichments affects activity and performance, but not leg health in fast- and slower-growing broiler chickens, 2021, Applied Animal Behaviour Science
  • Effects of hatching system on the welfare of broiler chickens in early and later life, 2020, Poultry Science
  • Day-old chicken quality and performance of broiler chickens from 3 different hatching systems, 2020, Poultry Science
  • Effects of incubation temperature pattern on broiler performance, 2020, Poultry Science

Molenaar frequently collaborates with several co-authors, including:

  • H. van den Brand
  • B. Kemp
  • I.C. de Jong
  • Mona F. Giersberg
  • Bahadir Guz

Best Publications

  • Effect of Egg Size on Heat Production and the Transition of Energy From Egg to Hatchling

    A. Lourens;R. Molenaar;H. van den Brand;M. J. W. Heetkamp

  • A review on yolk sac utilization in poultry

    Ilonka van der Wagt;Ingrid C. de Jong;Malcolm A. Mitchell;Roos Molenaar

  • High eggshell temperatures during incubation decrease growth performance and increase the incidence of ascites in broiler chickens

    R. Molenaar;R. Hulet;R. Meijerhof;C.M. Maatjens

  • Effects of moment of hatch and feed access on chicken development.

    D.M. Lamot;I.B. van der Linde;R. Molenaar;C.W. van der Pol

  • Meeting embryonic requirements of broilers throughout incubation: a review

    R. Molenaar;I.A.M. Reijrink;R. Meijerhof;H. van den Brand

  • Relationship between hatchling length and weight on later productive performance in broilers

    R. Molenaar;I.A.M. Reijrink;R. Meijerhof;H. Van Den Brand

  • Effect of eggshell temperature and oxygen concentration on survival rate and nutrient utilization in chicken embryos

    R. Molenaar;R. Meijerhof;I. van den Anker;M.J.W. Heetkamp

  • Effect of eggshell temperature and oxygen concentration during incubation on the developmental and physiological status of broiler hatchlings in the perinatal period

    R. Molenaar;I. van den Anker;R. Meijerhof;B. Kemp

  • Early feeding affects resistance against cold exposure in young broiler chickens

    H. van den Brand;R. Molenaar;I. van der Star;R. Meijerhof

  • Effect of relative humidity during incubation at a set eggshell temperature and brooding temperature posthatch on embryonic mortality and chick quality

    C. W. van der Pol;I. A. M. van Roovert-Reijrink;C. M. Maatjens;H. van den Brand

  • Providing environmental enrichments affects activity and performance, but not leg health in fast- and slower-growing broiler chickens

    Ingrid C. de Jong;Xana E. Blaauw;Jerine A.J. van der Eijk;Carol Souza da Silva

  • Temperature and CO2 during the hatching phase. I. Effects on chick quality and organ development

    C. M. Maatjens;I. A. M. Reijrink;R. Molenaar;C. W. van der Pol

  • Effects of dietary organic minerals, fish oil, and hydrolyzed collagen on growth performance and tibia characteristics of broiler chickens.

    Bahadir Guz;R. Molenaar;I.C. de Jong;B. Kemp

  • Effects of hatching system on the welfare of broiler chickens in early and later life.

    Mona F. Giersberg;Roos Molenaar;Ingrid C. de Jong;Carol Souza da Silva

  • Day-old chicken quality and performance of broiler chickens from 3 different hatching systems

    Carol Souza da Silva;Roos Molenaar;Mona F. Giersberg;T. Bas Rodenburg

  • Differences in egg nutrient availability, development, and nutrient metabolism of broiler and layer embryos

    A. Nangsuay;R. Molenaar;R. Meijerhof;I. van den Anker

  • Effects of pen enrichment on leg health of fast and slower-growing broiler chickens

    Unknown

  • Effects of incubation temperature pattern on broiler performance

    H.J. Wijnen;R. Molenaar;I.A.M. van Roovert-Reijrink;C.W. van der Pol

  • High environmental temperature increases glucose requirement in the developing chicken embryo.

    Roos Molenaar;Joost J. G. C. van den Borne;Ewoud Hazejager;Niels B. Kristensen

  • Effect of eggshell temperature and a hole in the air cell on the perinatal development and physiology of layer hatchlings

    R. Molenaar;S. de Vries;I. van den Anker;R. Meijerhof

  • Lighting schedule and dimming period in early life: consequences for broiler chicken leg bone development

    Carla W. van der Pol;Roos Molenaar;Christiaan J. Buitink;Inge A. M. van Roovert-Reijrink

Frequent Co-Authors

H. van den Brand
H. van den Brand Wageningen University & Research
Bas Kemp
Bas Kemp Wageningen University & Research
M.J.W. Heetkamp
M.J.W. Heetkamp Wageningen University & Research
I.C. de Jong
I.C. de Jong Wageningen University & Research
T.B. Rodenburg
T.B. Rodenburg Utrecht University

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

For those interested in studying Animal Science and Veterinary fields in the USA, exploring related online degrees can broaden career opportunities. Programs like mft master's programs online offer flexible options for students seeking to combine animal care with counseling skills, especially in animal-assisted therapy.

Advanced degrees, such as a phd in counseling online, provide avenues for specialization in behavioral studies, which can complement animal science knowledge in roles like veterinary behavioral research or rehabilitation.

Additionally, understanding the diverse animal degrees available online can guide students toward careers in wildlife management, zoology, or veterinary technology, depending on interest and industry demand.

Interestingly, career pathways can also intersect with other fields, such as sports and recreation management. Learning how to become an athletic director introduces leadership skills applicable to managing veterinary clinics, animal care facilities, or conservation programs.

Best Scientists Citing R. Molenaar

Trending Scientists