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Research Output 1985 2018

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Conference contribution
2013

Coarse Diets for Poultry: Effects on N-Efficiency and Gut Health

Kwakkel, R. P. & Moquet, P. C. A., 2013, Proceedings of the XXIX Curso de especialización FEDNA, 6 & 7 Novembre 2013, Madrid, Spain. p. 103-110

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Improving poultry welfare through academic-industry partnership in research and education

Rodenburg, T. B., Janczak, A. M., de Haas, E. N., de Jong, I. C., Kwakkel, R. P., Hansen, T. B. & Naguib, M., 2013, Book of Abstracts 9th European Symposium on Poultry Welfare, Uppsala, Sweden, 17-20 June 2013. Beekbergen: World’s Poultry Science Association, p. 144

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Influence of protein source and particle size on hindgut protein fermentation, intestinal health and performance in broilers

Qaisrani, S. N., van Krimpen, M. M., Hendriks, W. H. & Kwakkel, R. P., 2013, Proceedings of the 19th European Symposium on Poultry Nutrition 2013, Potsdam, Germany 26-29 August 2013. p. 149

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Unconventional protein sources for poultry feeding – opportunities and threats

van der Poel, A. F. B., van Krimpen, M. M., Veldkamp, T. & Kwakkel, R. P., 2013, Proceedings of the 19th European Symposium on Poultry Nutrition, Potsdam, Germany, 26-29 August 2013. p. 14-24

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

poultry feeding
protein sources
soybean meal
proteins
nutritive value
2012

Effects of ambient temperature, plumage condition, and housing system on energy partitioning and performance in laying hens

van Krimpen, M. M., Binnendijk, G. P., van den Anker, I., Heetkamp, M. J. W., Kwakkel, R. P. & van den Brand, H., 2012, Book of Abstracts of the World's Poultry Congress. Vol. 2012. p. 1107-1112

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

plumage
feathers
laying hens
ambient temperature
cages

Effects of coarseness and protein level (with or without urea supplementation) on performance and gut development in broilers

Wartena, F. C., Chang, C. M., Zhang, J., Smidt, H. & Kwakkel, R. P., 2012, Proceedings of the XXIV World Poultry Congress, 05-09 August 2012, Salvador, Brazil. Salvador: WPSA, Vol. 2012. p. 69-72

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

2011

Effect of dietary energy to digestible methionine ratio on performance of organic housed laying hens

van Krimpen, M. M., Binnendijk, G. P., Ogun, M. & Kwakkel, R. P., 2011, Proceedings of the 18th European Symposium On Poultry Nutrition, 31 Oct.- 04 Nov. 2011, Cesme, Turkey. Turkish Branch of the World's Poultry Science Association, p. 409-411

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

2010

Low protein intake stimulates reflux of uric acid in the hind gut of broiler chickens

Kwakkel, R. P., van den Borne, J. J. G. C. & Smeets, G., 2010, Proceedings of the 13th European Poultry Conference, Tours, France, 23-27 August 2010. p. 301-301

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

The effect of wet feeding and high energy to protein ratio on performance of broilers under normal and high temperature regimes

Mayasari, N., Syafwan, W., Kwakkel, R. P. & Verstegen, M. W. A., 2010, Proceedings of the 13th European Poultry Conference, Tours, France, 23-27 August 2010. p. 209-209

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

2008

Effects of dietary energy concentration, nonstarch polysaccharide concentration and particle sizes of nonstarch polysaccharides on digesta passage rate and gut development in laying hens.

van Krimpen, M. M., Kwakkel, R. P., van der Peet-Schwering, C. M. C., den Hartog, L. A. & Verstegen, M. W. A., 2008, Proceedings 33rd meeting of Dutch speaking nutrition researchers, Wageningen, The Netherlands. p. 87-88

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

2005

Reduction of feather pecking behaviour in laying hens by feeding management - a review

van Krimpen, M. M., Kwakkel, R. P., Reuvekamp, B. F. J., van der Peet-Schwering, C. M. C., den Hartog, L. A. & Verstegen, M. W. A., 2005, Proceedings of the 7th European Symposium on Poultry Welfare, Institute of Genetics and Animal Breeding, Lublin, 15-19 June 2005. Jastrzebiec, Poland: Polish Academy of Sciences, Institute of Genetics and animal breeding, Vol. 23. p. 161-174

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

2004

Nutrition affects fat-free body composition in broiler chickens

Eits, R. M., Kwakkel, R. P. & Verstegen, M. W. A., 2004, Worlds Poultry Journal. Vol. 6. p. 34-36

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Organic broilers in the Netherlands

Rodenburg, T. B., van der Hulst-van Arkel, M. C. & Kwakkel, R. P., 2004, Proceedings of the 2nd SAFO Workshop, Witzenhausen, Germany, 25-27 March 2004. Hovi, M., Sundrum, A. and, P. S. (ed.). p. 139-145

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

2003

Academic education programmes in poultry breeding

Groen, A. F., Kwakkel, R. P. & Leenstra, F. R., 2003, Proceedings 3rd European Poultry Genetics Symposium, 17-19 September 2003, Wageningen. p. 49-54

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Efficay of mushroom and polysaccharides against avain coccidiosis: Immunisation with our without live oocyst

Guo, F., Kwakkel, R. P., Williams, B. A., Suo, X., Parmentier, H. K. & Verstegen, M. W. A., 2003, WPSA Proceedings 14th European Symposium on Poultry Nutrition. Lillehammer, Norway: S.n., p. 164-166

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Potential feed savings and bird contamination in restricted fed broilers on pasture

Bassler, A., Elwinger, K., Kwakkel, R. P. & Ciszuk, P., 2003, Proceedings of the 14th European Symposium on Poultry Nutrition (WPSA), Lillehammer, Norway, August 10 - 14, 2003. Lillehammer, Norway: WPSA, p. 93-94

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

2002

Amino acid requirements and heat stress in turkeys

Veldkamp, T., Ferket, P. R. & Kwakkel, R. P., 2002, Proceedings of the 29th Annual Carolina Poultry Nutrition Conference, North Carolina, USA, 2002. p. 1-12

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Heat stress and dietary utilization in male turkeys : the role of energy and amino acids

Veldkamp, T., Kwakkel, R. P., Ferket, P. R. & Verstegen, M. W. A., 2002, Proceedings of the 25th Technical Turkey Conference : Leyburn, 2002. p. 27-31

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

In vitro fermentation characteristics of two mushrooms and a herb and their polysaccharide fractions, using poultry cecal contents as inocula

Guo, F. C., Williams, B. A., Kwakkel, R. P. & Verstegen, M. W. A., 2002, Proceedings of the 11th European Poultry Conference (WPSA), Bremen, Germany, 2002. - [S.l.] : [s.n.], 2002. p. 117

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Low-input interventions for traditional free-range indigenous chicken production systems in Western Kenya

Okitoi, L. O., Udo, H. M. J., Mukisira, E. A., de Jong, R. & Kwakkel, R. P., 2002, Proceedings of the 11th European Poultry Confrence (WPSA), Bremen, Germany, 2002. p. 171

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Outdoor broiler production at arable farms : an exploratory study

Kwakkel, R. P., 2002, Proceedings of the 11th European Poultry Conference (WPSA), Bremen, Germany, 2002. p. 73-74

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

2001

Advances in Nutritional Technology

van der Poel, A. F. B., Vahl, J. L. & Kwakkel, R. P., 2001, Advances in Nutritional Technology. : 1st World Feed Conference., Utrecht, The Netherlands, 2001. van der Poel, A. F. B., Vahl, J. L. & Kwakkel, R. P. (eds.). p. 262

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Compensatory growth and efficiency of broiler meat production.

Eits, R. M., van de Kruijs, I. H. C. & Kwakkel, R. P., 2001, Compensatory growth and efficiency of broiler meat production. : 13th European Symposium on Poultry Nutrition (WPSA)., Blankenberge, Belgium. p. 27-28

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Low density diets improve plumage condition in non-debeaked layers

van der Lee, A. G., Hemke, G. & Kwakkel, R. P., 2001, Proceedings of the 13th European Symposium on Poultry Nutrition . : 13th European Symposium on Poultry Nutrition (WPSA)., Blankenberge, Belgium, 2001. p. 244-245

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Nutrition affects fat-free body composition in broiler chickens.

Eits, R. M., Kwakkel, R. P. & Verstegen, M. W. A., 2001, Nutrition affects fat-free body composition in broiler chickens. : 13th European Symposium on Poultry Nutrition (WPSA)., Blankenberge, Belgium, 2001. p. 37-38

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Reverse colonic chyme movements in broilers as affected by dietary texture and nitrogen content.

van den Brink, M. H., Kwakkel, R. P., van der Poel, A. F. B. & Schreurs, V. V. A. M., 2001, Reverse colonic chyme movements in broilers as affected by dietary texture and nitrogen content : 13th European Symposium on Poultry Nutrition (WPSA), Blankenberge, Belgium. p. 264-265

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

2000

The use of chickens to control wheat plants in fields for grass seed production : design of a mixed crop-poultry farming system

Kwakkel, R. P. & Koops, W. J., 2000, Seminar-plus on Organic Farming : WIAS, Wageningen University 2000 / R.P. Kwakkel. - Wageningen : Wageningen University, 2000. p. np

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

1999

Towards a new net energy system in the Netherlands

Scheele, C. W., Verstegen, M. W. A., Kwakkel, R. P., Dekker, R. D. & Kwakernaak, C., 1999, Proceedings 12th European Symposium on Poultry Nutrition (WPSA), Veldhoven, The Netherlands, 15-19 August (1999). - [S.l.] : [s.n.], 1999. p. 399-407

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

1998

An analysis to improve the use of fossil energy in the Dutch Poultry Industry.

Vermeij, I., Kwakkel, R. P., de Boer, I. J. M. & Koops, W. J., 1998, Proc. 10th European Poultry Conference 'The Poultry Industry Towards the 21th Century', 21-26 June, Jerusalem, Israel, Vol. 2. p. 767-770

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Dynamic modelling of Ca and P flows in layers: prospects to reduce dietary digestible P-levels.

Tolboom, J. G. & Kwakkel, R. P., 1998, British Poultry Science, extracted from: WPSA (UK Branch) Spring Meeting 25-26 March. p. 45-46

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Dynamische modellering van Ca- en P-huishouding in leghennen. Mogelijkheden om oP-gehalten in voeders te verlagen.

Tolboom, J. G., Kwakkel, R. P. & Blok, M. C., 1998, Proc. 23e Studiedag voor Nederlandstalige Voedingsonderzoekers, Utrecht, The Netherlands. p. 16-17

Research output: Chapter in Book/Report/Conference proceedingConference contributionProfessional

Influence of dietary protein source on post prandial deposition of amino acids.

Kwakkel, R. P., Schreurs, V. V. A. M., de Ruijter, E. M. I., Koopmanschap, R. E., Schadereit, R. & Krawielitzki, K., 1998, Proc. 10th European Poultry Conference (WPSA) 'The Poultry Industry towards the 21st Century', 21-26 June. WPSA-Israel Branch (eds.), Jerusalem, Israel, Vol. 1. p. 420-424

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

1997

Amino acid utilization and feeding strategies.

Kwakkel, R. P. & Schreurs, V. V. A. M., 1997, Proc. 11th European Symp. Poultry Nutrition (WPSA), Faaborg, Denmark, 24-28 August. p. 116-130

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Amino acid utilization as affected by diurnal changes in the feeding pattern.

Kwakkel, R. P. & Schreurs, V. V. A. M., 1997, Proc. of two Mini Symposia held at the Universities of Natal (Pietermaritzburg) and Stellenbosch, South Africa, 20 and 23 October (1997) 15 pp.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

De modulerende invloed van de eiwitbron, caseïne vs. soja, op de opslag van aminozuren na een voerbeurt. Een verkennende studie met [15N]lysine en [13C]leucine bij vleeskuikens.

de Ruijter, E. M. I., Schreurs, V. V. A. M., Kwakkel, R. P., Koopmanschap, R. E., Schadereit, R. & Krawielitzki, K., 1997, Proc. 22e studiedag Nederlandstalige Voedingsonderzoekers, Gent, Belgium. p. 36-37

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Effects of fine- and coarse particle diets on gizzard growth and fermentation characteristics of the caecal contents in broiler chickens.

Kwakkel, R. P., Williams, B. A. & van der Poel, A. F. B., 1997, Proc. 11th European Symp. on Poultry Nutrition (WPSA), Faaborg, Denmark, 24-28 August. p. 249-251

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Gut motility as affected by diets differing in particle size distribution: impact on bird health and feed processing.

Kwakkel, R. P., van der Poel, A. F. B. & Williams, B. A., 1997, Proc. Scientific Day of the Southern African Branch of the WPSA, Pretoria, South Africa, 16 October. p. 28-32

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Multiphasic growth of the layer pullet: implications for their feeding and subsequent performance.

Kwakkel, R. P., 1997, Proc. Scientific Day of the Southern African Branch of the WPSA, Pretoria, South Africa, 16 October. p. 4-14

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

1996

Effect of amino acid profile in pullet starter diets on post-prandial 15N-enrichment and amino acid profile in liver, gut and breast muscle.

Dersjant, F. J., Kwakkel, R. P., Schreurs, V. V. A. M., Koopmanschap, R. E. & Schadereit, R., 1996, Proc. 7th Int. Symp. Protein metabolism and nutrition, A.F. Nunes et al. (eds.), EAAP Publ. 81, Estaçâo Zootechnica Nacional Portugal. p. 353-355

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

1995

Multiphasic growth in the layer pullet: Biological aspects and practical relevance for its rearing.

Kwakkel, R. P., 1995, Proc. 10th European Symp. on Poultry Nutrition (WPSA), Antalya, Turkey. p. 53-62

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

1994

Use of classical growth analysis: multiphasic growth in the layer pullet: a special application.

Kwakkel, R. P. & Koops, W. J., 1994, Proc. 9th Eur. Poultry Conf. (WPSA), Minisymposium: Modelling growth. Glasgow, UK. p. 9-12

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Use of classical growth analysis.

Kwakkel, R. P. & Koops, W. J., 1994, Proc. 9th Eur. Poultry Conf. Glasgow 2. p. 9-12

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

1993

A multiphasic analysis of White Leghorn pullet growth.

Kwakkel, R. P. & Ducro, B. J., 1993, Proc. 8th Int. Poultry Breeders Conf., Glasgow, UK (1993) 17 pp.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

1992

Nutritional studies on body development and performance in laying-type pullets and hens: a multiphasic approach.

Kwakkel, R. P., 1992, Proc. 19th World's Poultry Sci. Congr., Amsterdam, Vol. 2. p. 480-484

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

1991

Multiphasic analysis of component growth in pullets.

Kwakkel, R. P. & Koops, W. J., 1991, Proc. 8th Eur. Symp. Poultry nutrition, Venice, Italy. p. 368-371

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

1989

Effect of type and period of restriction during rearing on growth and early laying performance of laying-type pullets.

Kwakkel, R. P., de Koning, F. L. S. M. & Verstegen, M. W. A., 1989, Proc. 7th Eur. Symp. Poultry nutrition, Lloret de Mar, Spain. p. 275-276

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

1988

Het effect van verschillende voerstrategieen tijdens de opfok op lichaamsontwikkeling, -samenstelling en vroege eiproduktie van opfokhennen.

Kwakkel, R. P., Eek, R. G. H., de Rouw, D. L. A. M., Reuvekamp, B. F. J. & Janssen, W. M. M. A., 1988, Proc. 13th Conf. Dutch research workers in Animal nutrition, Beekbergen. p. 40-41

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Invloed van de voeding tijdens de opfok van leghennen op de externe kwaliteit van de eiproduktie.

Kwakkel, R. P., Zandstra, T. & Verstegen, M. W. A., 1988, Proc. 3e Zodiac Symp. Kwaliteiten in de dierlijke produktie, P.R. Wiepkema et al. (red.). Pudoc, Wageningen. p. 226-232

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

1987

Effect of lysine intake and feeding level in leghorn pullets during rearing on productive performance.

Kwakkel, R. P. & Janssen, W. M. M. A., 1987, Proc. 6th Eur. Symp. Poultry nutrition, WPSA, Konigslutter, FR Germany. p. 28-29

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic