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Andrew Butterworth

Andrew Butterworth
Consultant Veterinarian

BSc, BVSc, PhD, CWel, CBiol, MIBiol, FLS, DIpECAWB

About

341
Publications
98,578
Reads
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3,158
Citations
Additional affiliations
August 2016 - July 2019
University of Bristol
Position
  • Lecturer
Description
  • Poultry diseases and production, Animal Welfare and Legislation, Animal Cruelty and the Law. Unit Lead BVSc Animal Management VETS10300, Unit Lead - BSc ABW Work Placements VETS23003. Year 2 Lead BVSc
August 2016 - July 2019
University of Bristol Vet School
Position
  • Lecturer
January 2000 - August 2016
University of Bristol
Position
  • Fellow
Education
October 1999 - October 2002
University of Bristol
Field of study
  • Veterinary Pathology and Animal Welfare
October 1986 - October 1992
University of Bristol
Field of study
  • Veterinary Science
October 1983 - October 1986
University of Bristol
Field of study
  • Zoology

Publications

Publications (341)
Article
The prevalence of small cetacean (including dolphins, porpoises and small odontocete whales) bycatch in fisheries worldwide remains an ongoing conservation and welfare challenge. Various mitigation methods have been implemented in attempts to reduce bycatch. Two such methods involve gear modification: placement of Bycatch Reduction Devices (BRDs) w...
Article
Full-text available
Background: Plastic pollution is of growing concern in marine ecosystems worldwide. Specifically, microplastics (<5 mm) may interact with a variety of biota with the potential to cause harm to organism health. Studies investigating microplastics are increasing, yet their occurrence within free-ranging and living marine mammals remains largely unex...
Article
The stranding of cetaceans raises significant welfare and associated logistical issues. A survey of opinions on euthanasia methods based on the recommendations of an International Whaling Commission (IWC) workshop was conducted. Descriptive statistics showed that the workshop recommendations were generally supported and understood, and these includ...
Article
Full-text available
A range of welfare outcome measures relating to on-farm welfare are monitored in UK slaughterhouses to check compliance with the European Broiler Directive. A national dataset from 438,155 batches of chickens between 2010 and 2014 and from 228,795 batches between 2016 and 2018 was analysed. The data contained information about 3.1 billion chickens....
Technical Report
Full-text available
https://www.gov.uk/government/publications/awc-opinion-on-the-welfare-of-cattle-kept-in-different-production-systems
Preprint
Full-text available
Plastic pollution is of increasing concern to marine ecosystems worldwide. Specifically, microplastics (<5mm) may interact with a variety of biota with potential to cause harm to organism health. Studies concerning microplastics are increasing, yet their occurrence within live marine mammals remains largely unexplored. Here, faecal samples collecte...
Technical Report
Full-text available
AWC Second Opinion on the Animal Welfare Issues related to Covid-19 – medium to longer term
Technical Report
Full-text available
1. The scope of this review includes the slaughter and killing of goats within the meat and dairy goat industries, smallholders and private keepers of goats as pets as well as goats kept for their hair. Topics of interest include stunned and non-stun slaughter, culling of unwanted male kids, culling of animals at the end of their productive lives a...
Article
Full-text available
Editorial on the Research Topic Wildlife Welfare Animal welfare relates to the feelings, behavior, and the health status of animals. Nevertheless, animal welfare legislation rarely prescribes what animals should feel or experience, but rather what humans should do to protect the animals in their care from unnecessary suffering, and e.g., specificat...
Technical Report
Full-text available
AWC Opinion on the Animal Welfare Issues related to Covid-19
Article
The aim of this study was to gain an understanding of the attitudes that those involved in the slaughter industry have towards animal welfare and animal welfare aspects of their work, and also to investigate if gender or characteristics of employment (eg previous training, role and experience) influence such views. A paper questionnaire consisting...
Poster
Full-text available
The dolphin drive hunts that occur annually in Taiji, Japan have received global condemnation on both welfare and sustainability grounds. The considerable ethical and political controversy surrounding these and other small cetacean hunts serves as just one example of a contemporary issue challenging experts in the field of marine mammal science. Th...
Article
Full-text available
In order to support decision making on how to most effectively improve broiler welfare an innovative expert survey was conducted based on principles derived from semantic modelling. Twenty-seven experts, mainly broiler welfare scientists (n = 20; and 7 veterinarians), responded (response rate 38%) by giving welfare scores (GWS, scale 0-10) to 14 be...
Article
Full-text available
The number of broilers slaughtered globally is increasing. Ensuring acceptable welfare conditions for birds at the time of slaughter is paramount in meeting legislative and retailer specifications, and in producing high quality meat. There is knowledge that welfare training programs for members of the farming and red meat slaughter industry can imp...
Technical Report
Full-text available
FAWC Report
Technical Report
Full-text available
The UK government’s manifesto commitment was to control the export of live animals for slaughter and to make improvements to the current regulatory regime. To this end, on 10 April 2018, the UK government launched a Call for Evidence (CfE) supported by Scotland, Wales and Northern (Appendix B) on controlling live exports for slaughter and to improv...
Article
Full-text available
Drive hunts are a method to herd, capture and kill small cetaceans (whales and dolphins) in coastal waters of some countries including Japan and the Faroe Islands. In Japan, these methods are often associated with the acquisition of live dolphins for international marine parks and aquaria. During the hunts, dolphins are herded by a flotilla of fish...
Article
Seals are killed in a number of European countries and regions for commercial, management and recreational reasons. This is the first review to make a comparison across different nations, and it reveals that a variety of methods are employed, including the use of firearms, clubs, netting and harpoons. There is disparity in terms of which firearms a...
Chapter
This 273-paged book outlines a number of the key dilemmas in animal welfare for today's, and tomorrow's, world. The issues discussed range from the welfare of hunted animals, to debates around intensive farming versus sustainability, and the effects of climate and environmental change. It explores the effects of fences on wild animals and human imp...
Article
Full-text available
Animal health can present economic and animal welfare concerns for dairy farmers. However, it is unknown whether changes in behaviour as a result of sickness have long-term effects, and whether there is a relationship between the social rank of cows in the herd at a moment in time and the medical treatment history of these cows. The behaviour of 10...
Article
Full-text available
The European Commission requested EFSA to compare the reliability of wild boar density estimates across the EU and to provide guidance to improve data collection methods. Currently, the only EU-wide available data are hunting data. Their collection methods should be harmonised to be comparable and to improve predictive models for wild boar density....
Article
Full-text available
This guidance defines the process for handling applications on new or modified stunning methods and the parameters that will be assessed by the EFSA Animal Health and Welfare (AHAW) Panel. The applications, received through the European Commission, should contain administrative information, a checklist of data to be submitted and a technical dossie...
Technical Report
Full-text available
The last two decades have seen a strong commitment to evidence-based policy- making including in the area of farm animal welfare. In 2012, FAWC established a working group to review the evidence base for farm animal welfare policy leading to a report to be published in more than one part. Part One was published in 20145.The aim of this second Repor...
Article
Full-text available
The EU Broiler Directive came into force in the UK in June 2010 with the aim of setting new minimum standards, monitoring broiler welfare and addressing any welfare problems. A survey questionnaire was used to elicit information from a stratified sample of citizens in England and Wales regarding their willingness to pay for the provisions of the Di...
Conference Paper
Breeding, mating, rearing, stud, propagation, replication, procreation, crossing, crossbreeding, joining, merging, serving, servicing, tying, fertilising, interbreeding, coupling, matching, copulation, pure-breeding. For many animals, especially mammals, the act is fundamentally the same as in humans, but we use a different language in the farming...
Chapter
This third edition of "Animal Welfare" has 407 pages and is divided into five parts. Part I, Issues, introduces the background and philosophy of the subject. Part II covers problems for animal welfare, starting in chapter 3 with the animal's interactions with its environment. The following four chapters use categories similar to the UK Farm Animal...
Article
Full-text available
Batrachochytrium salamandrivorans (Bsal) is an emerging fungal pathogen of salamanders. Despite limited surveillance, Bsal was detected in kept salamanders populations in Belgium, Germany, Spain, the Netherlands and the United Kingdom, and in wild populations in some regions of Belgium, Germany and the Netherlands. According to niche modelling, at...
Article
Full-text available
Council Regulation (EC) No 1099/2009 on the protection of animals at the time of killing lists in Annex I the stunning interventions currently allowed in the EU, together with the related conditions under which those interventions can be implemented. The regulation allows the Commission to amend Annex I, listing additional stunning interventions, p...
Article
Full-text available
Batrachochytrium salamandrivorans (Bsal) has been assessed according to the criteria of the Animal Health Law (AHL), in particular criteria of Article 7 on disease profile and impacts, Article 5 on the eligibility of Bsal to be listed, Article 9 for the categorisation of Bsal according to disease prevention and control rules as in Annex IV, and Art...
Article
Full-text available
The selection and field application of animal-based welfare measures for pigs, sheep, dairy cows and broilers was the first step towards the future development of welfare improvement schemes for Serbia – a country that is applying for EU accession. The aim of this pilot study was to: (1) test the feasibility of a protocol for monitoring farm animal...
Article
Full-text available
Contagious bovine pleuropneumonia has been assessed according to the criteria of the Animal Health Law (AHL), in particular criteria of Article 7 on disease profile and impacts, Article 5 on the eligibility of contagious bovine pleuropneumonia to be listed, Article 9 for the categorisation of contagious bovine pleuropneumonia according to disease p...
Article
Full-text available
Abstract Border disease has been assessed according to the criteria of the Animal Health Law (AHL), in particular criteria of Article 7 on disease profile and impacts, Article 5 on the eligibility of Border disease to be listed, Article 9 for the categorisation of Border disease according to disease prevention and control rules as in Annex IV and A...
Article
Full-text available
Abstract Contagious caprine pleuropneumonia has been assessed according to the criteria of the Animal Health Law (AHL), in particular criteria of Article 7 on disease profile and impacts, Article 5 on the eligibility of contagious caprine pleuropneumonia to be listed, Article 9 for the categorisation of contagious caprine pleuropneumonia according...
Article
Full-text available
Abstract Ovine epididymitis (Brucella ovis) has been assessed according to the criteria of the Animal Health Law (AHL), in particular criteria of Article 7 on disease profile and impacts, Article 5 on the eligibility of ovine epididymitis to be listed, Article 9 for the categorisation of ovine epididymitis according to disease prevention and contro...
Article
Full-text available
Abstract Infestation with Varroa spp. (varroosis) has been assessed according to the criteria of the Animal Health Law (AHL), in particular criteria of Article 7 on disease profile and impacts, Article 5 on the eligibility of varroosis to be listed, Article 9 for the categorisation of varroosis according to disease prevention and control rules as i...
Article
Full-text available
Abstract Bovine genital campylobacteriosis has been assessed according to the criteria of the Animal Health Law (AHL), in particular criteria of Article 7 on disease profile and impacts, Article 5 on the eligibility of bovine genital campylobacteriosis to be listed, Article 9 for the categorisation of bovine genital campylobacteriosis according to...
Article
Full-text available
Abstract Previous introductions of highly pathogenic avian influenza virus (HPAIV) to the EU were most likely via migratory wild birds. A mathematical model has been developed which indicated that virus amplification and spread may take place when wild bird populations of sufficient size within EU become infected. Low pathogenic avian influenza vir...
Article
Full-text available
Abstract Trichomonosis has been assessed according to the criteria of the Animal Health Law (AHL), in particular criteria of Article 7 on disease profile and impacts, Article 5 on the eligibility of trichomonosis to be listed, Article 9 for the categorisation of trichomonosis according to disease prevention and control rules as in Annex IV and Arti...
Article
Full-text available
The pattern of body weight gain during the commercial growing of broiler chickens is important to understand growth and feed conversion ratio of each flock. The application of sound analysis techniques has been widely studied to measure and analyze the amplitude and frequency of animal sounds. Previous studies have shown a significant correlation (...
Article
Full-text available
Animal health issues are a problem on many dairy farms, and much is already known about clinical treatments and the behaviour of sick animals. Animal health issues can influence behaviour seen around the milking parlour, but less is known about the relationship between the number of previous medical treatments and the queuing to be milked, the ‘mil...
Article
Full-text available
Venezuelan equine encephalitis (VEE) has been assessed according to the criteria of the Animal Health Law (AHL), in particular criteria of Article 7 on disease profile and impacts, Article 5 on the eligibility of VEE to be listed, Article 9 for the categorisation of VEE according to disease prevention and control rules as in Annex IV and Article 8...
Article
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Avian mycoplasmosis (Mycoplasma gallisepticum, Mycoplasma meleagridis) has been assessed according to the criteria of the Animal Health Law (AHL), in particular criteria of Article 7 on disease profile and impacts, Article 5 on the eligibility of avian mycoplasmosis to be listed, Article 9 for the categorisation of avian mycoplasmosis according to...
Article
Full-text available
Bovine tuberculosis has been assessed according to the criteria of the Animal Health Law (AHL), in particular criteria of Article 7 on disease profile and impacts, Article 5 on the eligibility of bovine tuberculosis to be listed, Article 9 for the categorisation of bovine tuberculosis according to disease prevention and control rules as in Annex IV...
Article
Full-text available
A specific concept of strain was developed in order to classify the BTV serotypes ever reported in Europe based on their properties of animal health impact: the genotype, morbidity, mortality, speed of spread, period and geographical area of occurrence were considered as classification parameters. According to this methodology the strain groups ide...
Article
Full-text available
Bovine viral diarrhoea (BVD) has been assessed according to the criteria of the Animal Health Law (AHL), in particular criteria of Article 7 on disease profile and impacts, Article 5 on the eligibility of BVD to be listed, Article 9 for the categorisation of BVD according to disease prevention and control rules as in Annex IV and Article 8 on the l...
Article
Full-text available
Enzootic bovine leucosis (EBL) has been assessed according to the criteria of the Animal Health Law (AHL), in particular criteria of Article 7 on disease profile and impacts, Article 5 on the eligibility of EBL to be listed, Article 9 for the categorisation of EBL according to disease prevention and control rules as in Annex IV and Article 8 on the...
Article
Full-text available
West Nile fever (WNF) has been assessed according to the criteria of the Animal Health Law (AHL), in particular criteria of Article 7 on disease profile and impacts, Article 5 on the eligibility of WNF to be listed, Article 9 for the categorisation of WNF according to disease prevention and control rules as in Annex IV and Article 8 on the list of...
Article
Full-text available
Salmonella infection in poultry (Salmonella Pullorum, Salmonella Gallinarum and Salmonella arizonae) has been assessed according to the criteria of the Animal Health Law (AHL), in particular criteria of Article 7 on disease profile and impacts, Article 5 on the eligibility of Salmonella to be listed, Article 9 for the categorisation of Salmonella a...
Book
Full-text available
Butterworth, A., Simmonds, M. P., eds. (2017). People – Marine Mammal Interactions. Lausanne: Frontiers Media. doi: 10.3389/978-2-88945-231-6 Our relationships with marine mammals are complex. We have used them as resources, and in some places this remains the case; viewed them as competitors and culled them (again ongoing in some localities); bee...
Article
Full-text available
The European Commission has requested EFSA to assess animal diseases according to the criteria as laid down in Articles 5, 7, 8 and Annex IV for the purpose of categorisation of diseases in accordance with Article 9 of the Regulation (EU) No 2016/429 (Animal Health Law). This scientific opinion addresses the ad hoc method developed for assessing an...
Article
Full-text available
Aujeszky's disease has been assessed according to the criteria of the Animal Health Law (AHL), in particular criteria of Article 7 on disease profile and impacts, Article 5 on the eligibility of Aujeszky's disease to be listed, Article 9 for the categorisation of Aujeszky's disease according to disease prevention and control rules as in Annex IV an...
Article
Full-text available
Ebola virus disease has been assessed according to the criteria of the Animal Health Law (AHL), in particular criteria of Article 7 on disease profile and impacts, Article 5 on the eligibility of Ebola virus disease to be listed, Article 9 for the categorisation of Ebola virus disease according to disease prevention and control rules as in Annex IV...