1990 …2020

Research output per year

If you made any changes in Pure these will be visible here soon.

Fingerprint Dive into the research topics where Johan Schrama is active. These topic labels come from the works of this person. Together they form a unique fingerprint. If staff member(s) published prior to his/her WUR affiliation, it is possible that the publication overview, Fingerprint and network diagram are incomplete.

  • 14 Similar Researchers

Network Recent external collaboration on country level. Dive into details by clicking on the dots.

Research Output

Carbohydrate utilisation by tilapia: a meta-analytical approach

Maas, R. M., Verdegem, M. C. J., Wiegertjes, G. F. & Schrama, J. W., 17 Jan 2020, In : Reviews in Aquaculture.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
  • Digestible energy versus net energy approaches in feed evaluation for rainbow trout

    Groot, R., Lyons, P. & Schrama, J. W., 14 Feb 2020, Wias Annual Conference 2020: Frontiers in Animal Sciences. WIAS, p. 40-40

    Research output: Chapter in Book/Report/Conference proceedingAbstract

    Open Access
  • Effect of dietary carbohydrate to lipid ratio on performance of Nile tilapia and enhancement of natural food in pond aquaculture

    Kabir, K. A., Verdegem, M. C. J., Verreth, J. A. J., Phillips, M. J. & Schrama, J. W., May 2020, In : Aquaculture Research. 51, 5, p. 1942-1954

    Research output: Contribution to journalArticleAcademicpeer-review

    Open Access
  • Effect of dietary non-protein energy source (starch vs. fat) on total bile acid pool size and composition of rainbow trout (Oncorhynchus mykiss)

    Staessen, T. W. O., Verdegem, M. C. J., Eding, E. H., Nederlof, M. A. J. & Schrama, J. W., 14 Feb 2020, Wias Annual Conference 2020: Frontiers in Animal Sciences. WIAS, p. 82-82

    Research output: Chapter in Book/Report/Conference proceedingAbstract

    Open Access
  • Quantifying methionine requirement of African catfish (clarias gariepinus) using a plant-based diet

    Elesho, F., Verreth, J. A. J., Sutter, D. A. H., Kröckel, S. & Schrama, J. W., 14 Feb 2020, Wias Annual Conference 2020: Frontiers in Animal Sciences. WIAS, p. 65-65

    Research output: Chapter in Book/Report/Conference proceedingAbstract

    Open Access
  • Activities

    Effect of stocking density on the survival rate and grow-out of blue swimming crab (Portunus pelagicus) in brackish water ponds

    Restiana Wisnu Ariyati (Speaker), Sri Rejeki (Contributor), Roel Bosma (Contributor), Johan Schrama (Contributor)
    8 Apr 201912 Apr 2019

    Activity: Talk or presentationOral presentation

    The effect of dietary protein to energy ratio and stocking densities on fish production, food web enhancement and economic benefit of gift Nile tilapia aquaculture in ponds

    Kazi Kabir (Speaker), Marc Verdegem (Contributor), Johan Schrama (Contributor), Johan Verreth (Contributor), Michael J. Phillips (Contributor)
    8 Apr 201912 Apr 2019

    Activity: Talk or presentationOral presentation

    Impact of dietary ingredient composition on fecal characteristics, nutrient availability and waste production in common carp reared in RAS.

    L.T.N. Heinsbroek (Contributor), P. Antony Jesu Prabhu (Speaker), Eleni Fountoulaki (Contributor), E.H. Eding (Contributor), Sachi J. Kaushik (Contributor), J.W. Schrama (Contributor)
    3 Jun 20187 Jun 2018

    Activity: Talk or presentationOral presentation

    Energy evaluation of feed: species comparison in fish

    J.W. Schrama (Speaker)
    3 Jun 2018

    Activity: Talk or presentationInvited talk

    The contribution of microorganisms in bioflocs in making unavailable phosphate, fixed in dietary phytate, available for Nile tilapia

    M.C.J. Verdegem (Speaker), Samara Hutting (Contributor), Joost van Loo (Contributor), J.W. Schrama (Contributor), J.A.J. Verreth (Contributor)
    27 Aug 2018

    Activity: Talk or presentationOral presentation

    Press / Media

    Vis wordt vegetarisch

    Johan Schrama

    1/12/16

    1 item of Media coverage

    Press/Media: Expert Comment

    Kweekvis moet op een visvrij dieet

    Johan Schrama

    26/11/16

    1 item of Media coverage

    Press/Media: Expert Comment

    Projects