Bonne Beerda

Bonne Beerda
Wageningen University & Research | WUR

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89
Publications
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Introduction
Skills and Expertise

Publications

Publications (89)
Article
Full-text available
Overweight and obesity are common in global pet cat populations which makes it important to understand how properties of food affect appetite (food motivation). In four experiments, we studied this by using a model of operant conditioning for assessing appetite in which cats could press a lever for food rewards. There was no effect of protein statu...
Article
Parents raise children in consistent ways, and these parenting styles affect child wellbeing and societal adjustment. Recently, we identified such parenting styles in the owner–dog relationship. Dog owners of the authoritarian- correction orientated (AUC) type stand out for demandingness. Authoritative dog owners adopt either an intrinsic-value ori...
Article
Full-text available
Dog-directed parenting is an aspect of the owner-dog relationship that describes the overarching emotional sphere in which the dog's guidance and training take place. How dog-directed parenting styles express in specific owner-dog interactions is presently unknown. However, such knowledge can help to advise dog owners on appropriate parenting of th...
Article
Full-text available
Overweight/obese dogs are at increased risk of health issues and it is up to the dog owner to uphold successful weight management. In children, overweight relates to their parent’s permissive style of parenting. We predicted that permissive dog-directed parenting likewise associates with a dog being overweight (including obesity). If styles in pare...
Article
Full-text available
Male dogs are often castrated based on the thought that it facilitates well-behavedness. However, the causal evidence for this from prospective studies lacks and the existing associative studies present mixed results depending on the studied behaviours. We aimed to gain insight into possible factors driving an owner's decision to castrate their mal...
Article
Consistent owner-dog interaction patterns such as dog-directed parenting styles could reflect in the leash tension applied when walking a dog. Rein sensors are commonly used to measure tension applied to a horse's bit and our research aim was to evaluate the performance of this methodology for measuring leash tension. We evaluated the consistency o...
Article
Full-text available
Dog ownership satisfaction relates to the quality of life of both owner and dog, and when seriously compromised may even lead to dog abandonment. Knowledge on determinants of dog ownership satisfaction is limited, obstructing solutions for promoting satisfaction, and here we quantified causes making dog owners less than very satisfied with their do...
Article
Full-text available
Parents interact with children following specific styles, known to influence child development. These styles represent variations in the dimensions of demandingness and responsiveness, resulting in authoritarian, authoritative, permissive or uninvolved parenting. Given the similarities in the parent to child and owner to dog relationships, we deter...
Data
Items measuring the uninvolved parenting style. PSDQ items in the uninvolved style following Blakely Kimble (2009) and Baumrind (2013) (PDF)
Data
Second step 32-item dog-directed PSDQ Principal Component Analysis. Dutch dog owners (N = 518) filled out a 32-item Parenting Styles and Dimensions Questionnaire (PSDQ) adapted for assessing dog-directed parenting styles. Answers on a five-point Likert scale were analysed by Principal Components Analysis, omitting items with loadings < │0.4│for the...
Data
32-item child-directed PSDQ Principal Component Analysis. Dutch dog owning parents (N = 518) reported on child-directed parenting in 32 items adapted from the Parenting Styles and Dimensions Questionnaire (PSDQ). Answers on a five-point Likert scale were analysed by Principal Component Analysis and presented are the loadings ≥ |0.4| and percentages...
Data
62-item dog-directed PSDQ Principal Component Analysis. Dutch dog owning parents (N = 518) reported on dog-directed parenting in 62 items adapted from the Parenting Styles and Dimensions Questionnaire (PSDQ). Answers on a five-point Likert scale were analysed by Principal Component Analysis and presented are the loadings ≥ |0.4| and percentages of...
Data
Overview of PCA-item loadings. Results of loadings after rotation from PCA-analysis for 32/62-PSDQ (Robinson et al., 1995) and new dog-directed parenting styles in 518 Dutch dog owning parents; presented are the loadings ≥ |0.4|. (PDF)
Article
Behavioural testing allows to exclude dogs that are fearful and aggressive from the breeding population, but relatively little is known about the effectiveness of such strategies in practice. From 2001 till 2009 parent purebred Dutch Rottweilers had to pass the Socially Acceptable Behaviour (SAB)-test for their offspring to obtain a pedigree certif...
Article
Housing dairy cows offers the possibility to control many aspects of their lives, including accurate rationing, which is especially important for high yielding cows, and rapid health care. In addition, some parasitic diseases are largely controlled by removing cows from pasture. However, housing cows is associated with an increased prevalence of se...
Book
Housing dairy cows offers the possibility to control many aspects of their lives, including accurate rationing, which is especially important for high yielding cows, and rapid health care. In addition, some parasitic diseases are largely controlled by removing cows from pasture. However, housing cows is associated with an increased prevalence of se...
Article
Full-text available
Foot disorders are the main cause of dairy cow lameness and are considered to have a major impact on the welfare of dairy cattle. This study adopts a modeling approach, using a dynamic stochastic model, to provide more insight into the welfare impact of different types of foot disorders, both clinical and subclinical. The impact of specific foot di...
Article
This paper considers the economic consequences and the welfare impact of foot disorders in dairy cattle and the association between them, taking into account clinical and subclinical foot disorders. In dairy farming with cubicle housing and concrete floors, foot disorders are a major welfare problem with serious economic consequences. On average, f...
Article
Reduced oestrus behaviour expression or its absence (silent oestrus) results in subfertility in high-producing dairy cows. Insight into the genomic regulation of oestrus behaviour is likely to help alleviate reproduction problems. Here, gene expression was recorded in the ventral tegmental area (VTA) of high milk production dairy cows differing in...
Data
Full-text available
Association patterns between gene expression and heat score of estrous behavior associated genes identified in the four brain areas and anterior pituitary. See legend at end of table.
Data
Significantly enriched Gene Ontology and KEGG pathway terms in the estrous behavior associated gene lists. Table shows all terms with p < 0.10 and includes gene ontology terms in the 3 categories: Biological Process, Molecular function and Cellular component.
Data
Full-text available
Venn diagrams showing the number of overlapping probes between the different brain areas per analysis. The figures in brackets represent the total number of estrous behavior associated probes found in each brain area per analysis. Here, AM - Amygdala; HC - Hippocampus; DH - Dorsal Hypothalamus; VH - Ventral Hypothalamus; AP - Anterior Pituitary.
Data
Full-text available
Collection of brain samples and pituitary from the experimental cows. Procedure followed for collection of anterior pituitary and brain samples: amygdala, hippocampus, dorsal hypothalamus and ventral hypothalamus (with pictures).
Article
Full-text available
The decline noticed in several fertility traits of dairy cattle over the past few decades is of major concern. Understanding of the genomic factors underlying fertility, which could have potential applications to improve fertility, is very limited. Here, we aimed to identify and study those genes that associated with a key fertility trait namely es...
Article
Full-text available
Intensive selection for high milk yield in dairy cows has raised production levels substantially but at the cost of reduced fertility, which manifests in different ways including reduced expression of oestrous behaviour. The genomic regulation of oestrous behaviour in bovines remains largely unknown. Here, we aimed to identify and study those genes...
Article
Full-text available
Selection in dairy cattle for a higher milk yield has coincided with declined fertility. One of the factors is reduced expression of estrous behavior. Changes in systems that regulate the estrous behavior could be manifested by altered gene expression. This literature review describes the current knowledge on mechanisms and genes involved in the re...
Article
Food composition has been reported to influence mood and behaviour in humans and animals and it could help to reduce unwanted behaviour in dogs. Anxiety-related behaviour is associated with the functioning of the central serotonergic system and here it was investigated if dietary supplementation with the serotonin precursor tryptophan (Trp) affects...
Article
One million pet rabbits are kept in The Netherlands, but there are no data available on their behaviour and welfare. This study seeks to assess the welfare of pet rabbits in Dutch households and is a first step in the development of a welfare assessment system. In an internet survey, housing systems, general up-keep and behaviour of pet rabbits wer...
Article
Dog diets may differ in their effectiveness of maintaining satiety after a meal. Consequently, sensations of hunger, feeding motivation, physical activity, and sensitivity to environmental stressors may be increased. Dietary fibre may be effective in prolonging postprandial satiety depending on type and inclusion level. This study evaluated the eff...
Article
This study was part of a larger study that addressed whether milk production levels affect health risks in dairy cows as influenced by genetic merit for milk yield and management factors. Plasma samples were collected from 80 Holstein Friesian heifers at 2 weeks pre-partum and at 4 and 8 weeks post-partum in a 2 × 2 × 2 factorial arrangement design...
Article
Full-text available
To mimic airborne immune challenges, layer hens were intratracheally and concurrently challenged with various doses of the protein antigen human serum albumin (HuSA) and the pathogen-associated molecular pattern lipopolysaccharide (LPS) at 7 and 13 wk of age. All groups received 1 similar dose of HuSA plus LPS at 11 mo of age. Evaluation of plumage...
Book
Full-text available
According to the Resource Allocation Theory, an individual's genetic potential can only be realized in an environment in which essential food resources are adequately supplied. This book describes: resource allocation patterns in natural populations; the costs, preferences and trade-offs of maintenance, growth, reproduction and immune function; the...
Article
Full-text available
Subfertility has negative effects for dairy farm profitability, animal welfare and sustainability of animal production. Increasing herd sizes and economic pressures restrict the amount of time that farmers can spend on counteractive management. Genetic improvement will become increasingly important to restore reproductive performance. Complementary...
Article
Milk progesterone profiles were determined from samples obtained twice weekly for 100 d postpartum in 100 Holstein primiparous cows at a Dutch experimental farm. Three treatments were applied in a 2 x 2 x 2 factorial arrangement with high-low genetic merit for overall production, high-low caloric density diet, and 2-3 times milking/day as factors....
Article
Full-text available
Each year, millions of dogs worldwide are abandoned by their owners, relinquished to animal shelters, and euthanised because of behaviour problems. Nutrition is rarely considered as one of the possible contributing factors of problem behaviour. This contribution presents an overview of current knowledge on the influence of nutrition on canine behav...
Chapter
This book is about resource allocation matters with the aim to further development thoughts and models on resource allocation applied to livestock production. It contains 18 chapters divided into 4 parts which discuss resources and resource allocation patterns, trade-offs, metabolic constraints to resource allocation and the process of homeorhesis...
Article
Measuring HPA axis activity is the standard approach to the study of stress and welfare in farm animals. Although the reference technique is the use of blood plasma to measure glucocorticoid hormones (cortisol or corticosterone), several alternative methods such as the measurement of corticosteroids in saliva, urine or faeces have been developed to...
Article
Improving dairy cow fertility by means of genetic selection is likely to become increasingly important, since it is now well established that declining fertility cannot only be arrested by improved management. Profit margins per kg milk produced are decreasing, therefore farmers need to reduce cost and increase herd size. This restricts the labor i...
Article
Full-text available
Increases in genetic merit for milk yield are associated with increases in mobilization of body reserves. This study assessed the effects of genotype by environment (GxE) interactions on milk yield and energy and protein balances. Heifers (n = 100) with high or low genetic merit for milk yield were milked 2 or 3 times a day and received rations of...
Article
Milk production per cow has increased significantly as a result of breeding, feeding, and other management factors. This study aims to address concerns about udder health risks for low- and high-producing dairy cows. In a 2 x 2 x 2 factorial design, Holstein-Friesian heifers (n = 100) of low or high genetic merit for milk production, milked 2 or 3...
Article
Het gelijktijdig uitvoeren van gedragingen, zoals vreten en herkauwen, is onderdeel van het natuurlijk gedrag van runderen. Door verschillende ontwikkelingen in de Nederlandse melkveehouderij nemen de mogelijkheden om het gedrag te synchroniseren af. Animal Sciences Group heeft onderzocht in hoeverre verminderde synchronisatie nadelig is voor het d...
Article
High milk production in dairy cattle can have negative side effects on health and fertility traits. This paper explores the genetic relationship of milk yield with health and fertility depending on herd environment. A total of 71,720 lactations from heifers calving in 1997 to 1999 in the Netherlands were analyzed. Herd environment was described by...
Article
Gelet op de mogelijkheid dat in dat kader huisvestingssystemen aangepast moeten worden is door de Directie Landbouw van het Ministerie van LNV de vraag gesteld welke belemmeringen er voor de runderen in de Nederlandse rundveehouderij bestaan om natuurlijk gedrag zoveel mogelijk uit te kunnen voeren en hoe deze belemmeringen opgelost kunnen worden b...
Article
Dit rapport beschrijft een studie naar de betekenis van gedragssynchronisatie voor dierwelzijn in het algemeen en gevolgen van verminderde vreetmogelijkheden van op stal gehuisvest melkvee in het bijzonder. Aangetoond is dat de synchronisatie van voeropname bij onbeperkte vreetmogelijkheden beperkt is. Beperkingen kunnen zowel meer als minder synch...
Article
Full-text available
INTRODUCTION Gene expression profiling is an important tool in our attempt to understand the function of genes and their products in determining phenotype at any level. As far as reproduction is concerned, throughout the last years a large number of functional genomic studies involving gene expression profiling has been performed in humans, primate...
Article
Om te voorkomen dat koeienuiers vervuilen met aanklevende mest verwijderen veel veehouders het haar van de uiers. De bekende werkwijze is scheren, vrij nieuw is het wegschroeien van uierhaar. Studenten van het Van Hall Instituut inventariseerden, in samenwerking met onderzoekers van ASG, de diervriendelijkheid van deze methoden
Article
Increasing milk yields in modern dairy cows cause concern that high yield may impair the cows' health and welfare, for example, via negative effects on metabolic status and hypothalamo-pituitary-adrenocortical (HPA) function. This study aims to investigate whether a high level of milk production, and the associated metabolic status, affects HPA fun...
Article
Full-text available
This study investigated the possible effects of milk production level on the host resistance of dairy cows. High (n = 18) and low (n = 18) producing cows on a research farm, which respectively produced 11 443 and 7 727 kg milk in their previous lactation, were compared. To enhance the possible differences in host resistance between high and low pro...
Article
Selection for a higher milk yield increases metabolic load via a higher yield per se and/or via physiological processes that facilitate milk yield, and it is difficult to differentiate between these two. Here, we aim to identify important pathways that contribute to the reduction in fertility following selection for higher yield. The associations b...
Article
Melkkoeien in Nederland komen steeds minder vaak en steeds korter in de wei.
Article
Uitleg over de opzet van een onderzoek op Nij Bosma Zathe naar de relaties tussen melkproductie, diergezondheid en diermanagement van melkkoeien. Vragen waarop een antwoord gezocht wordt: zijn hoogproductieve melkkoeien meer of minder gevoelig voor gezondheidsproblemen?; vragen koeien die de aanleg hebben om veel melk te geven een aangepast managem...
Article
Full-text available
Four groups of dogs, which had been subjected to housing conditions of varying quality for years, were assumed to experience different levels of stress. The groups were compared for behavioural and hormonal parameters in order to identify measures that indicate chronic stress in the dog and which may help to identify poor welfare in this species. A...
Article
Two groups of beagles, accustomed to spacious group housing, were subjected to social and spatial restriction and studied for manifestations of chronic stress with a time interval of 7 weeks between the groups. The change from outside group housing (the control period) to individual housing in small indoor kennels resulted in sustained decreases in...
Article
Full-text available
Six weeks of social and spatial restriction were used as a model to induce chronic stress in Beagles. Behavioral and physiological measurements were performed during a period of enriched spacious outdoor housing in groups (GH) and during a subsequent period of solitary housing in small indoor kennels (IH). Behavioral parameters that may indicate ch...
Article
Stress parameters that can be measured noninvasively may help to identify poor welfare in dogs that live in private homes and institutions. Behavioural parameters are potentially useful to identify stress, but require further investigation to establish which behaviours are appropriate. In the present study, behaviours were recorded and analysed for...
Article
Poor housing conditions, harsh training sessions and uncontrollable or unpredictable social environments are examples of the situations that may lead to reduced welfare status in dogs. Individuals that suffer from poor welfare presumably experience stress and may consequently exhibit stress responses. In order to evaluate stress responses as potent...
Article
Full-text available
A problem in assessing animal welfare is that collecting data in itself may be stressful to the animals. Therefore, noninvasive methods for collecting data have to be devised and tested. A first step in investigating saliva cortisol, urinary cortisol, and urinary catecholamine as noninvasive indicators of canine well-being is the validation of thes...