A5001055321- Animal Nutrition and Physiology
- Animal Behavior and Welfare Studies
- Cardiovascular and exercise physiology
- Livestock and Poultry Management
- Pharmacological Effects and Assays
- Effects of Environmental Stressors on Livestock
- Blood Pressure and Hypertension Studies
- Heart Rate Variability and Autonomic Control
- Animal Genetics and Reproduction
- Insect and Pesticide Research
- Neuropeptides and Animal Physiology
- Rabbits: Nutrition, Reproduction, Health
- Hormonal and reproductive studies
- Neonatal Respiratory Health Research
- Biochemical effects in animals
- Neuroendocrine regulation and behavior
- Salmonella and Campylobacter epidemiology
- Vector-borne infectious diseases
- Adipose Tissue and Metabolism
- Regulation of Appetite and Obesity
- Aquaculture Nutrition and Growth
- Meat and Animal Product Quality
- Viral Infections and Vectors
- Sports Performance and Training
- Receptor Mechanisms and Signaling
Wageningen University & Research
2014-2022
Maastricht University
1994-1996
Utrecht University
1980
University Medical Center Utrecht
1980
Predators and competitors of vertebrates can in theory reduce the density infected nymphs (DIN)—an often-used measure tick-borne disease risk—by lowering reservoir-competent hosts and/or tick burden on hosts. We investigated this possible indirect effect predators by comparing data from 20 forest plots across Netherlands that varied predator abundance. In each plot, we measured questing Ixodes ricinus (DON), DIN for three pathogens, rodent density, rodents activity mammalian predators....
Pigs may display biting behavior directed at pen mates, resulting in body damage such as tail wounds. We assessed the suitability of jute sacks (hung vertically wall) to reduce behaviors and wounds rearing gilts. Additionally, we several characteristics different types biters. Tail docked gilts originated from 72 litters, which were kept partly slatted pens with (J) or barren control (CON; 36 litters per treatment). ear observed weaning (4 wk) during weaner phase (17 J 19 CON pens). Sow...
During incubation, development of embryos is affected by eggshell temperature (EST). A constant EST 37.8°C has been considered so far to result in most optimal embryo development. However, it can be hypothesized that a higher week 2 combination with lower 3 stimulates and subsequent grow-out performance. In this study, 468 eggs 44-week-old Ross 308 breeder flock were incubated at different incubation patterns × factorial arrangement. 2, was either or 38.9°C, 3, 36.7°C. At hatch, chick...
There are indications that lighting schedules applied during incubation can affect leg health at hatching and rearing. The current experiment studied effects of schedule: continuous light (24L), 12 hours light, followed by darkness (12L:12D), or (24D) throughout broiler chicken eggs on the development strength bones, role selected hormones in bone development. In tibiatarsus femur, growth ossification size microstructure day (D)0, D21, D35 post were measured. Plasma melatonin, hormone, IGF-I...
A possible hypotensive action of regular endurance exercise in normotensive sedentary subjects still remains a matter debate. This is partly caused by the fact that anticipated fall resting blood pressure rather small and fluctuations during day can be large. The benefits ambulatory monitoring (ABP) originate to great deal from repeatability on different occasions average improved greater number readings. In this context we evaluated effect moderate training 19 male subjects, aged 22 44...
We investigated whether maternal dietary nitrate supplementation, leading to nitric oxide (NO) formation, would affect duration of farrowing, levels asphyxiation, vitality piglets at birth and/or loss potential viable in the form stillbirth and pre-weaning mortality. Data were collected from 190 crossbred (Yorkshire x Dutch Landrace) sows, which allocated, balanced for parity, six (0, 0.03, 0.06, 0.09, 0.12 or 0.15% nitrate). Sow received lactational diet containing approximately 7 days...
The purpose of this study was to investigate in a cross-sectional design body composition, muscle fiber characteristics, cardiovascular risk factors and liver enzymes long term androgenic-anabolic steroids (AAS) using bodybuilders three months after drug withdrawal (AAS group; n = 16) non-users (CO 12). Training dietary data were collected all subjects. Anthropometry included weight, height, 8 skinfolds 11 circumferences. Percentage fat ( %FAT), mass (FM) lean (LBM) calculated. In biopsy...
Eggshell temperature (EST) during incubation greatly affects embryo development, chick quality at hatch, and subsequently various broiler physiological systems. Until now, a constant EST of 37.8°C seems optimal. Data on effects patterns immune organ development subsequent response are, however, scarce. A higher 38.9°C in week 2 and/or lower 36.7°C 3 potentially positively affect post hatch. Broiler eggs (n = 468) were incubated 4 different 117 eggs/treatment) from onward. Week 1 (embryonic...
Resilient animals can cope with environmental disturbances in life minimal loss of function. Resilience be enhanced by optimizing early-life conditions. In poultry, eggshell temperature ( EST ) during incubation and early feeding are two conditions that found to alter neonatal chick quality as well immune response later life. However, whether these affect disease resilience chickens at ages has never been studied yet. Hence, we the effects [(37.8°C control or 36.7°C lower )] late (≥embryonic...
Abstract The objective of this study was to evaluate effects different dosages dietary nitrate supplementation sows from d 108 gestation until 5 lactation on reproductive performance and piglet birth weaning. Dietary leads nitric oxide (NO) formation that can potentially increase blood flow the fetuses (by vasodilative effect NO), leading a decrease in loss potential viable piglets form stillbirth preweaning mortality. Three hundred five gilts were allocated one six diets lactation,...
Early life experiences are known to be of great importance for later life. For instance, exposure stress during early can increase fearfulness at age. In broilers, delayed feeding after hatch may cause metabolic stress. Besides, affect neonatal broiler development and thermogenesis consequently preferred ambient temperature. Moreover, these effects strategy dependent on late incubation To study this, eggs (n = 1,338) from a 54-wk-old Ross breeder flock were incubated 37.8°C (control) or...
Reliable standards of maximal power output in middle-aged and physically active men women are desirable sports-medical practice. For this purpose cycle ergometer tests were evaluated 2038 898 over 40 years age (46.8±6.1 (mean ± SD) 47.5+6.6 years), who volunteered a check-up all whom sports for at least three months the year preceding screening (4.3±3.1 hours/week respectively 3.6±2.5 hours/week). The range values (Ẇmax), heart rate (HRmax), systolic blood pressure (SBPmax) peak plasma...
Colibacillosis is a poultry disease that negatively affects welfare and causes economic losses. Treatment with antibiotics raises concerns on antimicrobial resistance. Consequently, alternative approaches to enhance resilience are needed. Access feed water directly after hatch (early feeding) may at later ages. Additionally, high eggshell temperature (EST) during mid incubation improve chick quality hatch, supporting potential positive effects of early feeding. Effects EST [37.8°C (control)...
scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et recherche
Considerable interindividual variation in the response of blood pressure to exercise has been found. In this study systolic during a progressive maximal bicycle ergometer test was investigated 747 physically active male subjects over age 40 years with normal, borderline elevated, and elevated resting pressure. The influence several subject characteristics on studied: 53% (eSBP) could be explained by work load, pre-eSBP, working capacity (Wmax). No difference slope eSBP seen between three...