H.W. Saatkamp's research while affiliated with Wageningen University & Research and other places
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Publications (167)
Highly Pathogenic Avian Influenza (HPAI) H5N1 is considered endemic in most parts of Indonesia and constitutes an important risk for broiler production, especially in Western Java which has the highest poultry population in the country. Most broiler farms in Western Java are smallholder farms that operate under different business types: independent...
Foot-and-Mouth Disease (FMD) is one of the most important animal diseases hindering livestock production in Thailand. In this study, a temporal and spatial analysis at the subdistrict level was performed on FMD outbreak reports in Thailand from 2011 to 2018. Risk factors associated with FMD outbreaks were furthermore investigated using generalised...
Foot and mouth disease (FMD) is one of the most important infectious animal diseases impacting livestock production in Thailand. Despite a national vaccination program, FMD outbreaks are reported every year. We studied the epidemiological impacts of FMD outbreaks in four districts of Thailand between 2015 and 2016. Epidemiological data were collect...
During the last decade the potential of insects for human nutritional protein is increasingly recognised. Direct consumption of insects contributes to a reduction of the ecological footprint of human food production and is claimed to have health benefits. An alternative is feeding poultry (broilers and layers) with insect-derived protein. This offe...
Highly Pathogenic Avian Influenza (HPAI) H5N1 remains endemic in the Western Java smallholder broiler farms. This study aims to identify farmers and farm characteristics associated with farmers' motivations toward five different measures directed to HPAI: cleaning and disinfection (C&D), vaccination, reporting, and stamping-out with and without com...
Objectives
The occurrence and zoonotic potential of antimicrobial resistance (AMR) in pigs and broilers has been studied intensively in past decades. Here, we describe AMR levels of European pig and broiler farms and determine the potential risk factors.
Methods
We collected faeces from 181 pig farms and 181 broiler farms in nine European countrie...
The emergence of antimicrobial resistance (AMR) is one of the biggest health threats globally. In addition, the use of antimicrobial drugs in humans and livestock is considered an important driver of antimicrobial resistance. The commensal microbiota, and especially the intestinal microbiota, has been shown to have an important role in the emergenc...
Business interaction is important for innovation performance but may be challenging in cross-border regions. The objective of this research was to investigate the relation between factors that define cross-border business interaction and innovativeness. From the cross-border regional innovation systems literature, we operationalized thirty-five fac...
Foot-and-Mouth Disease (FMD) is one of the most important animal diseases hindering livestock production in Thailand. In this study, a temporal and spatial analysis at the subdistrict level was performed on FMD outbreak reports in Thailand from 2011 to 2018. Risk factors associated with FMD outbreaks were investigated using generalised estimating e...
The European Union fosters cooperation in cross-border regions through the European Cohesion Policy (ECP). The implementation of ECP instruments requires a participatory approach, in which stakeholders’ views are acknowledged. However, the multiple of views among and between stakeholders of cross-border initiatives complicate their involvement in a...
CONTEXT
In response to societal concerns, the European Union set up goals to address the negative impact of intensive broiler production on animal welfare, the environment and human health.
OBJECTIVE
This paper aimed to 1) explore combinations of system changes that perform best in terms of farm income, animal welfare, emissions of ammonia (NH3) a...
Soil quality is an important determinant of agricultural productivity, farm resilience and environmental quality. Despite its importance, the incorporation of sustainable soil management in economic models is lacking. This study approaches farmers as decision makers on soil management. Sustainable soil management may be an investment that goes at t...
Soil quality is an important determinant of the productivity, environmental quality and resilience of agricultural ecosystems. In addition to the farmer, there are other actors who may have different interests in soil quality, hampering the implementation of sustainable soil management. To date, these actors have received surprisingly little attent...
Existing research suggests that regions can develop their long-term competitive advantage through well-functioning interregional innovation cooperation. In this article, we use the example of innovation in small and medium-sized agri-food enterprises (SMEs) to scrutinise and compare regional innovation approaches on each side of the Dutch-German bo...
Context
Intensive broiler production systems are criticized by EU citizens because of their negative impact on animal welfare, the environment and human health.
Objective
To inform the development of sustainable broiler production systems, this paper provides insight in the synergies and trade-offs between different external factors originating fr...
This article develops a framework for assessing the implementation of standards in a context of multiple negative externalities resulting from meat production. The framework is applied to the introduction of the New Dutch Retail Standard in the Dutch broiler market, a standard on animal welfare initiated by the private sector with national coverage...
p>External shocks, such as disease occurrence, can be very disruptive in complex food producing value chains. To analyze this, a vertically linked dynamic partial equilibrium model was used to analyze market effects of outbreaks of Highly Pathogenic Avian Influenza (HPAI) in The Netherlands. Various shock inducing scenarios were analyzed, e.g contr...
Antimicrobial resistance is one of the biggest health threats for both humans and animals. This justifies the need for a conceptual framework that provides an integrated assessment of the measures and strategies that can be applied within livestock supply chains to reduce the risks of human exposure to resistant pathogens. The aim of this study is...
Antimicrobial resistance is one of the biggest health threats for both humans and animals. This justifies the need for a conceptual framework that provides an integrated assessment of the measures and strategies that can be applied within livestock supply chains to reduce the risks of human exposure to resistant pathogens. The aim of this study is...
Understanding broiler farmers' intention toward highly pathogenic avian influenza (HPAI) control is important to design successful HPAI control programs. We used Theory of Planned Behavior (TPB) to identify factors (i.e., attitude, subjective norm, and perceived behavioral control) associated with the intentions of Western-Java small-scale broiler...
The aim of this article is to report on antimicrobial resistance (AMR) in commensal Escherichia coli from livestock from several
European countries. The relationships with antimicrobial usage (AMU) at country level and harmonized indicators to cover the
most relevant AMR aspects for human health in animal production were also investigated. E. coli...
Both proper animal welfare and economic benefit are important to the broiler industry, so it is better to consider these two factors together. The purpose of this study was to investigate the relationship between economic benefit and animal welfare in different production systems of white-feathered broilers in China. Based on the Welfare Quality As...
Background:
Breeding companies may want to maximize the rate of genetic gain from their breeding program within a limited budget. In salmon breeding programs, full-sibs of selection candidates are subjected to performance tests for traits that cannot be recorded on selection candidates. While marginal gains in the aggregate genotype from phenotypi...
The aim of the present study was to explore the relation between both farm performance and antimicrobial use (AMU) of broiler farms. Farm performance was expressed as technical efficiency, obtained by using a bootstrap data envelopment analysis. AMU was expressed as treatment incidence. Cluster analysis is used to obtain groups of farms with simila...
Antimicrobial resistance is a global threat for both human and animal health. One of the main drivers of antimicrobial resistance is inappropriate antimicrobial use in livestock production. The aim of this study was to examine the technical and economic impact of tailor-made interventions, aimed at reducing antimicrobial use in broiler production....
Since the 1970s, animal welfare (AW) in Dutch broiler production has been criticized by non-governmental organizations (NGOs) and the general public. Despite the development of production concepts aimed at improving AW, the conventional concept, which satisfied only the minimum legal requirements, remained by far the most dominant one in the Dutch...
![Figure 1. Analysis of approach (obtained from Gocsik et al. [13]).](publication/334653116/figure/fig1/AS:784192703045635@1563977518999/Analysis-of-approach-obtained-from-Gocsik-et-al-13_Q320.jpg)
In the 2000s, the idea of a so-called middle-segment arose in North-West Europe to address the criticism on intensive broiler production systems. Middle-segment systems being indoor housing of slower-growing broiler strains at a stocking density ≤38 kg/m2. Previous literature showed that Dutch middle-segment systems entail a relatively large gain i...
OBJECTIVES:
To determine associations between farm- and flock-level antimicrobial usage (AMU), farm biosecurity status and the abundance of faecal antimicrobial resistance genes (ARGs) on broiler farms.
METHODS:
In the cross-sectional pan-European EFFORT study, conventional broiler farms were visited and faeces, AMU information and biosecurity rec...
EFFORT consortium members=Haitske Graveland (UUVM), Alieda van Essen (WBVR), Bruno Gonzalez-Zorn (UCM), Gabriel Moyano (UCM), Pascal Sanders (ANSES), Claire Chauvin (ANSES), Julie David (ANSES), Antonio Battisti (IZSLT), Andrea Caprioli (IZSLT), Thomas Blaha (TIHO), Katharina Wadepohl (TIHO), Maximiliane Brandt (TIHO), Tine Hald (DTU), Ana Sofia Ri...
Over the past years, many different control measures have been implemented to prevent HPAI infection. The national plan with numerous measures lead to problems in terms of prioritization and budget allocation. Our study objectives are to (i) establish an inventory of measures on HPAI control in Indonesia since the first actions were taken in 2004,...
Animal health and welfare have become topics of increasing public interest. Especially improvements in the health and welfare of food-producing animals are currently being intensively researched. To be able to routinely assess the quality of health and welfare of individual pig herds for benchmarking purposes in a simple and robust way, a short and...
Background:
Macroparasites, such as ticks, lice, and helminths, are a concern in livestock and aquaculture production, and can be controlled by genetic improvement of the host population. Genetic improvement should aim at reducing the rate at which parasites spread across the farmed population. This rate is determined by the basic reproduction rat...
Background
Profitability of breeding programs is a key determinant in the adoption of selective breeding, and can be evaluated using cost-benefit analysis. There are many options to design breeding programs, with or without a multiplier tier. Our objectives were to evaluate different breeding program designs for aquaculture and to optimize the numb...
1 Antimicrobial resistance (AMR) in bacteria and associated human morbidity and mortality is increasing. Use 2 of antimicrobials in livestock selects for AMR that can subsequently be transferred to humans. This flow of 3 AMR between reservoirs demands surveillance in livestock as well as in humans. As part of the EFFORT 4 project (www.effort-agains...
To analyze the market effects of HPAI control in the Dutch layer sector an integrated modelling approach was developed to simulate these effects. This approach included (1) an extensive epidemiological simulation, (2) farm level costs calculation and conversion, and (3) partial equilibrium (PE) modelling of the Dutch layer sector. Model structure a...
This study analyses the factors driving the stay-exit intention of small livestock farmers located in southern Chile. Technical, economic, and social characteristics from 212 farmers were included in this study. Through an empirical probit model we identified the variables that should be considered when developing rural policies aimed at increasing...
The aim of this study was to propose a procedure for optimising the cost-effectiveness of vector borne disease surveillance using a scenario tree model and cost-effectiveness analysis. The surveillance systems for Bluetongue Virus serotype 8 (BTV-8) implemented in Switzerland and Belgium were used as examples. In twenty four different, simulated po...
Economic values are used to balance the emphasis on breeding goal traits, and determine whether selection for a trait is worthwhile. The basic reproduction ratio (R0) determines transmission dynamics of a disease and, therefore, R0 is an appropriate breeding goal trait. This study presents an easy to use framework for the derivation of the economic...
1. The present study was designed firstly to explore the potential economic benefits of adopting management practices to reduce lameness in broiler farms, and secondly to explore farmers’ possible perceptions of this potential in the Swedish context.
2. The likely financial effects were addressed using a normative economic model, whereas a question...
Broiler producers operate in a highly competitive and cost-price driven environment. In addition, in recent years the societal pressure to improve animal welfare (AW) in broiler production systems is increasing. Hence, from an economic and decision making point of view, the cost-efficiency of improvement in AW obtained from a certain production sys...
Conjoint analysis was conducted to elicit Dutch broiler and fattening pig farmers’ preferences about different characteristics of production systems, with primary interest in farmers’ intrinsic motivation towards animal welfare (AW). A cluster analysis was carried out to identify distinct groups of farmers with homogeneous preferences. The results...
Development of antimicrobial resistance (AMR) is considered to be one of the main human health problems. Livestock production, particularly hog and broiler production, are regarded as sources of human exposure to resistant pathogens. It is envisaged that the issue of AMR will be on the agenda of both policy makers at various levels (e.g. supra-nati...
This study compared the economic feasibility of production systems with different levels of animal welfare (AW) in the broiler, laying hen, and fattening pig sectors. Economic feasibility over a five-year time horizon was assessed using stochastic bio-economic simulation models. The results suggest that the main determinant of economic feasibility...
Decision making on hazard surveillance in livestock product chains is a multi-hazard, multi-stakeholder, and multi-criteria process that includes a variety of decision alternatives. The multi-hazard aspect means that the allocation of the scarce resource for surveillance should be optimized from the point of view of a surveillance portfolio (SP) ra...
This paper summarises the views of a European group of scientists involved in the control of bovine viral diarrhoea virus (BVDV) as part of a European Union Thematic Network. The group concludes that the technical tools and the knowledge needed to eradicate BVDV are at hand, as proven by successful national control schemes in several European count...
A framework for categorization of economic impacts of outbreaks of highly contagious livestock diseases (HCLD) is presented. This framework interprets veterinary measures to control HCLD outbreaks with reference to economic definitions of costs and benefits, and the implications for value losses both for different stakeholders affected and society...
Decisions related to animal welfare (AW) standards depend on farmer’s multiple goals and values and are constrained by a wide range of external and internal forces. The aim of this paper is twofold, i.e., (1) to develop a theoretical framework for farmers’ AW decisions that incorporates farmers’ goals, use and non-use values and (2) to present an a...
Classical swine fever (CSF) is a highly contagious pig disease that causes economic losses and impaired animal welfare. Improving the surveillance system for CSF can help to ensure early detection of the virus, thereby providing a better initial situation for controlling the disease. Economic analysis is required to compare the benefits of improved...
The cross-border region of the Netherlands (NL) and the two German states of North Rhine Westphalia (NRW) and Lower Saxony (LS) is a large and highly integrated livestock production area. This region increasingly develops towards a single epidemiological area in which disease introduction is a shared veterinary and, consequently, economic risk. The...
Economic analysis of hazard surveillance in livestock production chains is essential for surveillance organizations (such as food safety authorities) when making scientifically-based decisions on optimization of resource allocation. To enable this, quantitative decision support tools are required at two levels of analysis: (1) single-hazard surveil...
This study analyzed the effects of different broiler production systems on health care costs in the Netherlands. In addition to the conventional production system, the analysis also included 5 alternative animal welfare systems representative of the Netherlands. The study was limited to the most prevalent and economically relevant endemic diseases...
This study used a stochastic bioeconomic simulation model to simulate the business and financial risk of different broiler
production systems over a 5-yr period. Simulation analysis was conducted using the @Risk add-in in MS Excel. To compare the
impact of different production systems on economic feasibility, 2 cases were considered. The first case...
A combined epidemiological-economic modelling approach was used to analyse strategies for highly pathogenic avian influenza (HPAI) control for the Netherlands. The modelling framework used was InterSpread Plus (ISP), a spatially based, stochastic and dynamic simulation model. A total of eight control strategies were analysed, including pre-emptive...
Compared with the domestic trade in livestock, intra-communal trade across the European Union (EU) is subject to costly, additional veterinary measures. Short-distance transportation just across a border requires more measures than long-distance domestic transportation, while the need for such additional cross-border measures can be questioned. Thi...
Economic analysis of control strategies for contagious diseases is a necessity in the development of contingency plans. Economic impacts arising from epidemics such as highly pathogenic avian influenza (HPAI) consist of direct costs (DC), direct consequential costs (DCC), indirect consequential costs (ICC) and aftermath costs (AC). Epidemiological...
This paper analyses the potential gains and the main challenges for increased cross-border collaboration in the control of highly contagious livestock diseases in regions with cross-border reliance on production and consumption of livestock commodities. The aim of this intensification of cross-border collaboration is to retain the economic advantag...
Frequency and impact of contagious livestock diseases (CLD) are mainly determined by features of the production structure of livestock, e.g. number of farms, farm size, specialisation of production and reliance on cross-border production markets. Changes in these features result in altered CLD risks and veterinary and financial-economic impacts. Pa...
Cross-border trade in livestock is subject to additional, costly routine veterinary measures (RVM) compared with domestic trade, such as veterinary checks of live and slaughter animals, and export certificates. A short-distance transport just across the border requires many additional measures compared with a long-distance domestic animal transport...
In the Netherlands, outbreaks of Aujeszky's Disease (AD) are controlled by vaccination and movement restriction zones (MRZ). Although this strategy avoids the socio-ethical concerns associated with pre-emptive slaughter, it can easily result in animal welfare problems and negative economic consequences. These arise because movement restrictions res...
Two lungworm outbreaks in dairy herds were investigated in order to estimate the resulting economic costs. On the two farms, with 110 and 95 cows, total costs were estimated at €159 and €167 per cow, respectively. Overall, milk production reduced by 15 to 20 per cent during the outbreaks. Five cows died on one farm, while on the other farm seven co...
Epidemieën van hoog pathogene aviaire influenza (HPAI) kunnen een grote invloed hebben op het dierenwelzijn, de pluimveesector en, vanwege de zoönotische aard, ook op de volksgezondheid. Vanwege de vele mogelijke insleeproutes, reservoirs en mutaties in laag pathogene AI (LPAI) loopt het pluimvee in Nederland voortdurend het gevaar te worden besmet...
Bluetongue (BT) is a vector-borne disease of ruminants caused by bluetongue virus that is transmitted by biting midges (Culicoides spp.). In 2006, the introduction of BTV serotype 8 (BTV-8) caused a severe epidemic in Western and Central Europe. The principal effective veterinary measure in response to BT was believed to be vaccination accompanied...
This paper analyses the potential for increased cross‐border cooperation for border regions with a reasonable or large cross‐border reliance on production and consumption of livestock commodities. The extended cross‐border region of the Netherlands (NL), North Rhine Westphalia (NRW), and Lower Saxony (NDS) is a particular example in this respect. D...
The introduction of Highly Pathogenic Avian Influenza (HPAI) viruses is a continuing threat to the poultry sector. In times of increased risk of introduction (e.g. because of HPAI outbreaks in neighbouring countries or trade partners), decision-makers face the question whether they should intensify current preventive measures or establish new ones....
Met de introductie in 2006 van Blauwtong in Nederland is het bewustzijn betreffende het voorkomen van vectorgebonden ziekten toegenomen. Een bedreigende vectorziekte die vooral paarden en pony’s treft, is Afrikaanse Paardenpest (APP). De mortaliteit bij APP is hoog. Gezien de plaats die het paard in de Nederlandse maatschappij inneemt, zal een uitb...
This study calculates the financial consequences of the bluetongue serotype 8 (BTV8) epidemics of 2006 and 2007 in the Netherlands. We constructed a deterministic economic model that is compatible with the Dutch livestock production systems for cattle, sheep and goats. Two hundred cattle farms and 270 sheep farms were infected with BTV8 in the epid...
Organic farming principles give rise to multifunctionality: different activities are combined at farm level to create ecological and economic synergies. These principles do however allow for different operationalisations and different farm development strategies, for example with regard to the use of external inputs or the decision whether or not t...
In this study the economic consequences of the bluetongue (BT) epidemic of 2006 and 2007 in the Netherlands were calculated. A deterministic economic model was constructed, reflecting the Dutch livestock production systems for cattle, sheep and goats. The net costs of the BT epidemic in 2006 (BT2006) has been valued at 32.4 million Euros and for th...
High Pathogenic Avian Influenza (HPAI) may pose a major threat for the Belgium poultry sector, as an outbreak of HPAI results in tremendous economic losses. In order to reduce the economic damage for an outbreak, different strategies to control HPAI are evaluated. In a first stage the structure of the Belgium poultry sector is described and risks a...