Marinus M Van Krimpen
In memory of

Marinus M Van Krimpen
Wageningen University & Research | WUR · Department of Animal Nutrition

PhD

About

265
Publications
56,415
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2,605
Citations
Citations since 2017
56 Research Items
2026 Citations
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Introduction
Marinus M Van Krimpen currently works at the Department of Animal Nutrition, Wageningen University & Research. Marinus does research in Animal Science. One of his current projects is 'Improving phosphorus efficiency in organic pigs and poultry.'

Publications

Publications (265)
Article
Full-text available
High calcium (Ca) intake and fine limestone reduces precaecal phosphorus (P) absorption independently of P solubility in broilers. This study aimed to determine whether dietary total Ca: total P ratio (Ca:P) and limestone particle size (LPS) affect gene expression of P transporters in the small intestine. A total of 384 one-day-old Ross 308 male br...
Article
Full-text available
Expression levels of genes (RT-qPCR) related to Ca and P homeostasis (transporters and claudins (CLDN)) were determined in porcine jejunal and colonic mucosa. Forty growing pigs (BW 30.4±1.3 kg) received a low and high Ca content (2.0 and 9.6 g/kg, respectively) diet with or without microbial phytase (500 FTU/kg) for 21 days. Dietary Ca intake enha...
Article
Full-text available
Improving leg health will support broiler health and welfare. Known factors to improve leg health are: replacing inorganic by organic macro minerals in the diet, providing environmental enrichments and using slower-growing broilers. However, it remains unknown how fast- and slower-growing broilers respond to a combination of providing organic macro...
Article
Full-text available
An experiment was performed to study the effects of a low inclusion level of Chlorella vulgaris (CV) biomass in broiler diets on performance, immune response related to inflammatory status, and the intestinal histomorphology. The study was performed with 120 Ross 308 male broiler chickens from 0–35 days of age. The broilers were housed in 12 floor...
Article
Full-text available
Sixty growing male pigs were used to test the hypothesis that high dietary Ca content reduces P absorption to a greater extent in microbial phytase-supplemented diets via reducing inositol phosphate (IP) degradation and enhancing P precipitation. Pigs were equally allotted over diets with three Ca contents 2.0, 5.8 and 9.6 g/kg with or without micr...
Article
Full-text available
The fatty acid content of microalgae, especially the high content of omega-3 fatty acids such as eicosapentaenoic acid (EPA, C20:5) and docosahexaenoic acid (DHA, C22:6), could enrich eggs when fed to laying hens. Moreover, the properties and bioactive components of omega-3 fatty acids could positively influence the health and production performanc...
Article
Full-text available
To explore the potential use of seaweed co-products for broiler diets, this study investigates whether an enzyme treatment of seaweed co-products improves performance, in vivo digestibility and health in broilers. In total, 360 Ross 308 male broilers were fed one of five experimental diets: a basal diet, or a basal diet including the U. laetevirens...
Article
Full-text available
This study was designed to evaluate effects of source of macro and trace minerals (inorganic vs organic) in fast and slower-growing broiler breeders’ diets on egg and hatchling mineral content and on offspring tibia morphological, biophysical and mechanical characteristics. After 10 weeks feeding the breeders (at 30 week of age), eggs were collecte...
Article
Full-text available
The hypothesis that dietary inclusion of microbial phytase improves apparent calcium (Ca) digestibility thereby allowing a lower dietary Ca inclusion without compromising growth performance was tested. One-day-old male Ross 308 broilers (25 birds/pen, nine pens/treatment) were assigned to eight experimental diets containing one of four dietary Ca t...
Article
Full-text available
The use of seaweed as feed ingredient is gaining interest but the high ash content, low nutrient digestibility, short shelf life and poor economic feasibility hamper practical application. This study investigates the effect of washing, ensiling and extraction processes on the nutritional value of seaweed products for broilers, based on nutrient con...
Article
Full-text available
Effects of environmental enrichment on activity, behaviour, walking ability, contact dermatitis and performance were investigated in fast- and slower-growing broiler chickens. A total of 840 day-old male broilers, 420 of a fast-growing strain (Ross 308) and 420 of a slower-growing strain (Hubbard JA757), were housed in a 2 × 2 factorial arrangement...
Article
Full-text available
This study was designed to evaluate the effects of green light emitting diode (LED) light during incubation and dietary organic macro and trace minerals during rearing on tibia morphological, biophysical, and mechanical characteristics of broiler chickens at slaughter age. The experiment was setup as a 2 ! 2 ! 2 factorial arrangement, with the foll...
Article
Full-text available
This study was designed to evaluate effects of green light-emitting diode (LED) light during incubation and dietary organic macro and trace minerals during rearing on tibia morphological, biophysical, and mechanical characteristics of broiler chickens at slaughter age. The experiment was setup as a 2 x 2 x 2 factorial arrangement, with the followin...
Article
Full-text available
Feather pecking (FP) by laying hens is a significant welfare issue in the poultry industry. Pecking at and pulling out feathers of conspecifics can seriously reduce the well-being of birds and causes economic losses for the farmer. Records of FP in laying hen flocks from the last 20 years show a prevalence of between 24% and 94%. Several research g...
Article
Full-text available
The hypothesis was tested that an increased digestion of coarse compared with fine limestone can alleviate the negative effects of a low dietary Ca/P ratio on the growth performance and characteristics of tibia strength (CTS) in broilers. A total of 1,152 Ross 308 broiler chickens received a standard commercial starter feed from day 0 to 13. From d...
Article
Tolerance of Japanese quail to different dietary fat peroxidation values (PV) in combination with supplementation of antioxidants was investigated. In total 1200 Japanese quail were divided into 16 treatment groups in a 4 × 4 factorial design. The diets were supplemented with 4% soybean oil differing in peroxidation values (2.06, 45.18, 101.99 and...
Article
Full-text available
The increasing demand for animal protein by the growing world population intensifies the exploration of novel feed sources. This study evaluated the nutritional value of six intact seaweed species (i.e. the brown species Saccharina latissima, Laminaria digitata, and Ascophyllum nodossum, the red species Palmaria palmata, and Chondrus crispus and gr...
Article
1. This study determined the effects of three protein sources (PS), each at two digestibility crude protein (DCP) levels, on performance, gut morphology and fermentation characteristics in the hindgut of broilers. 2. It was hypothesised that broilers fed ingredients high in indigestible CP, i.e. rapeseed meal (RSM) or maize gluten (MG), could poten...
Article
Full-text available
1. This study determined the effects of three protein sources (PS), each at two digestibility crude protein (DCP) levels, on performance, gut morphology and fermentation characteristics in the hindgut of broilers. 2. It was hypothesized that broilers fed ingredients high in indigestible CP, i.e. rapeseed meal (RSM) or maize gluten (MG), could pote...
Article
Full-text available
Nutrition is a crucial factor for growth and bone development in broiler chickens. Adjustments in dietary ingredients might affect bone development and consequently locomotion related problems. This study was designed to evaluate effects of dietary organic minerals (ORM), fish oil (FISH), and hydrolyzed collagen (COL) on growth performance and tibi...
Conference Paper
Full-text available
Suboptimal leg health, occurring in a part of the fast growing broiler chickens, might be related to developmental imbalance between high growth rate and immaturity of leg bones. Improving leg bone quality may support the welfare and performance of broiler chickens. Eggshell temperature (EST) during incubation is one of the factors possibly affecti...
Article
Full-text available
A study with 884 Ross 308 male broilers, housed in 68 floor pens (0.75 m²) from 0 to 35 days of age was conducted to evaluate the effects of low crude protein (CP) diets, with partial replacement of soybean meal by free amino acids (AA), on performance, slaughter yields, litter quality and footpad lesions. During the first 11 d, all broilers receiv...
Article
Full-text available
Background Micro algae’s are worldwide considered as an alternative source of proteins in diets for animals and humans. Micro algae also produce an array of biological active substances with potential to induce beneficial and health promoting effects. To better understand the mode of action of micro algae’s when applied as additive in diets, porcin...
Article
Background: Micro algae’s are worldwide considered as an alternative source of proteins in diets for animals and humans. Micro algae also produce an array of biological active substances with potential to induce beneficial and health promoting effects. To better understand the mode of action of micro algae’s when applied as additive in diets, porci...
Chapter
This book contains chapters that discuss the natural engineering and multifunctionality of feathers, embryonic development of the avian integument, the reasons and welfare implications of feather pecking in laying hens, genetic solutions to reduce injurious pecking in laying hens, evidence-based management of injurious pecking, contact dermatitis i...
Conference Paper
Leg problems leading to a poor walking ability or lameness can negatively affect broiler chicken welfare and performance. Controlling this issue may be possible by improving leg bone characteristics, using a multi-factorial approach throughout the complete poultry production chain. One of the predisposing factors may be incubation temperature. The...
Conference Paper
Full-text available
Nutrition is one of the most important factors for growth and bone development in broiler chickens. Alterations in ingredients and adjustment of nutrients in broiler diets might positively affect bone development; it might contribute to the reduction of locomotion related problems. This study was designed to evaluate effects of dietary organic mine...
Article
1. An experiment was conducted to evaluate the effects of technical feed ingredients between 14 and 28 days of age on performance and health status of broilers (d14 – 35) fed diets with a high inclusion rate of rapeseed meal as a nutritional challenge. 2. A total of 1,008 one-day-old male Ross 308 chicks was distributed over 36 floor pens and alloc...
Article
Full-text available
Consumption of low protein energy-rich (LPER) diets increases susceptibility to metabolic disease in mammals, such as hepatic damage, and can have an adverse effect on cognition. However, the effects of these diets on both physical and mental welfare have not been investigated in domestic meat chickens. Female chicks received a low protein energy-r...
Article
Pluimveeproducten, zoals pluimveevlees en eieren, dragen in belangrijke mate bij aan de wereldvoedselvoorziening. De vraag naar pluimveeproducten zal in de komende decennia vermoedelijk zelfs ruimschoots verdubbelen. Eén van de strategieën om hieraan te voldoen is de verhoging van de voerefficiëntie, waardoor de dieren in staat zijn om met dezelfde...
Article
In een onderzoek naar de voederwaarde en diervoedergrondstoffen, uitgevoerd door Wageningen Livestock Research in samenwerkin met Schothorst Feed Research, zijn een grote verschillen in verteerbaarheid van nutriënten gevonden tussen biologisch gehouden varkens te verbeteren kan intrinsiek fytase uit tarwe en tarwegries een uitkomst bieden.
Article
Full-text available
An experiment was conducted to investigate the effects of dietary inclusion of rye, a model ingredient to increase gut viscosity, between 14 and 28 d of age on immune competence-related parameters and performance of broilers. A total of 960 day-old male Ross 308 chicks were weighed and randomly allocated to 24 pens (40 birds per pen), and the birds...
Article
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To sustainably contribute to food security of a growing and richer world population, livestock production systems are challenged to increase production levels while reducing environmental impact, being economically viable, and socially responsible. Knowledge about the sustainability performance of current livestock production systems may help to fo...
Article
Full-text available
Background Gene expression profiles of intestinal mucosa of chickens and pigs fed over long-term periods (days/weeks) with a diet rich in rye and a diet supplemented with zinc, respectively, or of chickens after a one-day amoxicillin treatment of chickens, were recorded recently. Such dietary interventions are frequently used to modulate animal per...
Article
Full-text available
A broiler study was performed to determine the pre-cecal phosphorus (P) digestibility of 5 P sources, 3 from animal (Delfos, Calfos, and porcine bone meal) and 2 of inorganic (monocalcium phosphate [MCP] and dicalcium phosphate [DCP]) origin. Delfos is processed from bones resulting in a dicalcium phosphate product, and Calfos is processed from bon...
Technical Report
Full-text available
Requirement values for apparent faecal digestible and standardised ileal digestible valine of broilers at different ages were estimated by a meta-analysis approach. This study was part of a project to estimate the apparent faecal (AFD) and standardized ileal digestible (SID) amino acid requirement values of the first limiting amino acids in both br...
Technical Report
Full-text available
Requirement values for apparent faecal digestible and standardised ileal digestible methionine+cysteine of broilers at different ages were estimated by a meta-analysis approach. This study was part of a project to estimate the apparent faecal (AFD) and standardized ileal digestible (SID) amino acid requirement values of the first limiting amino aci...
Technical Report
Full-text available
Requirement values for apparent faecal digestible and standardised ileal digestible tryptophan of broilers at different ages were estimated by a meta-analysis approach. This study was part of a project to estimate the apparent faecal (AFD) and standardized ileal digestible (SID) amino acid requirement values of the first limiting amino acids in bot...
Technical Report
Full-text available
Requirement values for apparent faecal digestible and standardised ileal digestible lysine of broilers at different ages were estimated by a meta-analysis approach. This study was part of a project to estimate the apparent faecal (AFD) and standardized ileal digestible (SID) amino acid requirement values of the first limiting amino acids in both br...
Technical Report
Full-text available
Requirement values for apparent faecal digestible and standardised ileal digestible threonine of broilers at different ages were estimated by a meta-analysis approach. This study was part of a project to estimate the apparent faecal (AFD) and standardized ileal digestible (SID) amino acid requirement values of the first limiting amino acids in both...
Technical Report
Full-text available
Requirement values for apparent faecal digestible and standardised ileal digestible arginine of broilers at different ages were estimated by a meta-analysis approach. This study was part of a project to estimate the apparent faecal (AFD) and standardized ileal digestible (SID) amino acid requirement values of the first limiting amino acids in both...
Technical Report
Full-text available
Requirement values for apparent faecal digestible and standardised ileal digestible isoleucine of broilers at different ages were estimated by a meta-analysis approach. This study was part of a project to estimate the apparent faecal (AFD) and standardized ileal digestible (SID) amino acid requirement values of the first limiting amino acids in bot...
Technical Report
Full-text available
Requirement values for apparent faecal digestible and standardised ileal digestible valine of broilers at different ages were estimated by a meta-analysis approach. This study was part of a project to estimate the apparent faecal (AFD) and standardized ileal digestible (SID) amino acid requirement values of the first limiting amino acids in both br...
Article
Full-text available
The objective of this ring test was to investigate the prececal phosphorus (P) digestibility of soybean meal (SBM) in broiler chickens using the trial protocol proposed by the World's Poultry Science Association. It was hypothesized that prececal P digestibility of SBM determined in the collaborating stations is similar. Three diets with different...
Article
Full-text available
The growing world population demands an increase in animal protein production. Seaweed may be a valuable source of protein for animal feed. However, a biorefinery approach aimed at cascading valorisation of both protein and non-protein seaweed constituents is required to realise an economically feasible value chain. In this study, such a biorefiner...
Article
1. The aim of this study, comprising two experiments, was 1) to determine in Experiment 1 the relationship of incremental dietary P content on precaecal digestible P in male broilers and 2) to determine in Experiment 2 the precaecal P digestibility of various inorganic P sources at marginal levels of P supply. 2. In Experiment 1, a total of 260 mal...
Article
Seaweeds are increasingly seen as an alternative to land-grown products in food and feed applications. Interest in production of seaweeds in temperate waters is rising, in particular in combination with offshore wind energy generation. This article reports an investigation of the economic feasibility of seaweed production in the North Sea using eco...
Article
Rather than improving crop-production yield, developing biorefinery technology for unused biomass from the agri-food supply chain may be the crucial factor to reach sustainable global food security. A successful example of food-driven biorefinery is the extraction of protein from green tea residues, however, alkali usage is high and the resulting l...
Article
The current study was conducted to evaluate the effect of feed supplementation with a phytogenic product (equal mixture of thymol plus carvacrol; T+C) on performance, nutrient retention, volatile fatty acid (VFA) profiles, cecum microbial ecosystem, serum parameters and characteristics of gastrointestinal tract of broilers fed on wheat-based diets...
Article
Full-text available
Because of a growing world population there is an increasing need for protein production, in addition to traditional agriculture and fisheries. Several new crops such as microalgae, macro algae, aquatic higher plants, aquatic and terrestrial invertebrates (insects and worms) have received growing scientific attention, because of potential high biom...
Article
From December 2017 onward, including non-organic protein sources in diets for organic poultry will no longer be allowed in the EU. Moreover, in the EU the use of synthetic amino acids in organic diets is prohibited. The main dietary challenge in European organic egg production is to fulfill the protein requirement, especially the methionine (Met) r...
Conference Paper
Broilers have the intrinsic capacity to degrade dietary phytate, thereby increasing precaecal phosphorus digestibility (pcdP). Insight in the extent and mechanism of phytate-P (PP) degradation is necessary to evaluate the contribution to the P-supply of the birds. An experiment was performed to determine the interaction of dietary PP and non-phytat...
Conference Paper
Full-text available
An experiment was conducted to investigate the effects of different dietary protein levels during rearing and dietary energy levels during lay on incubation traits of broiler breeders (BB). A 2 × 3 × 2 factorial design was used with 2 crude protein (CP) levels (high = CPh; low = CPl) during rearing; high, standard and low dietary energy levels (3,0...