PhD in Animal Health: Testing Bacteriophages against Post-Weaning Diarrhoea-Associated E. coli in a Pig Gut Fermentation Model

PhD in Animal Health: Testing Bacteriophages against Post-Weaning Diarrhoea-Associated E. coli in a Pig Gut Fermentation Model

Quick Decision

Promising with material uncertainties. This four-year project asks whether a bacteriophage cocktail can selectively suppress pathogenic Escherichia coli associated with pig post-weaning diarrhoea in a simulated porcine gut fermentation model, while measuring effects on commensal bacteria. It combines phage characterization with an animal-health problem and connects to SRUC's visible microbiology and veterinary research. The main decision risks are award specificity and current application details: the project description states UK-rate tuition plus a living stipend, but gives neither the stipend amount nor an explicit international fee-gap commitment. It lists 30 November 2026 at 12:00, without a timezone. A matching institution-level project page was not confirmed in the available information, while the generic SRUC recruitment timeline appears to cover an earlier cohort. Before relying on any of these details, ask SRUC/EASTBIO to confirm the live deadline, project campus, named supervisors, registration institution and full award terms.

Research Problem and Doctoral Work

What Is Unsolved and Why It Matters

Post-weaning diarrhoea is a consequential pig-health problem associated with pathogenic E. coli. The proposed intervention is targeted phage therapy: viruses that infect bacteria could reduce a target pathogen while avoiding broad disruption of the gut community. The project description specifies a simulated pig-gut fermentation model, making community-level measurement central. Activity against an isolated strain does not guarantee activity in a complex gut environment, and pathogen control alone would not establish that commensal bacteria are preserved.

Reviews describe phage therapy in pigs as promising but heterogeneous across phage selection, dose, delivery route and study design. The UK antimicrobial-resistance plan recognizes bacteriophages among potential alternatives while emphasizing the wider evidence-to-use challenge. SRUC/AHDB's assessment of post-weaning diarrhoea also treats prevention as multifactorial, so phage treatment should be read as one candidate intervention alongside management, nutrition and other veterinary measures. See the pig phage evidence review, veterinary phage translation review, UK antimicrobial-resistance action plan and post-weaning diarrhoea evidence assessment.

Work, Methods, and Potential Outputs

The project description indicates three linked tasks: isolate and characterize bacteriophages; evaluate a phage cocktail; and measure its activity against target E. coli together with effects on commensal gut bacteria in a simulated fermentation model. The practical research challenge is to connect phage identity and host range to reproducible pathogen suppression under gut-like conditions, then determine whether the activity remains selective across the wider microbial community.

Useful experimental questions include how broad the target E. coli panel is, how the cocktail was assembled, whether resistance or loss of susceptibility will be monitored, how persistence is measured in the model, and which community-level assays define commensal effects. These are questions for the project team, not confirmed methods. The description does not specify sample size, control arms, endpoints, anaerobic conditions or live-animal validation; none should be assumed. A fermentation model can support controlled mechanistic comparisons but cannot alone demonstrate clinical effectiveness in pigs.

Recent SRUC-linked papers provide adjacent, not identical, precedents. A 2023 study isolated and characterized E. coli-infecting phages and tested lysis across clinical isolates, illustrating the importance of strain-level host-range data; it is not evidence of efficacy against porcine strains. A recent encapsulation study highlights gastrointestinal stability as a delivery problem, but is in poultry and encapsulation is not listed as a method for this PhD. A 2026 phage-amplification biosensor study demonstrates a separate applied use of phage biology for pathogen detection, not a planned diagnostic work package. See the E. coli phage characterization study, gut-stability and encapsulation study, phage-amplification biosensor study and cocktail testing across epithelial models. The latter is Salmonella work and differs from the proposed pig-gut model.

School, Programme and Field Context

SRUC is a specialist Scottish institution whose work spans animal science, veterinary research and rural systems. Its awards page reports a top-five position in Animal Sciences/Agriculture in the Guardian University Guide 2025 and cites REF 2021 performance across Agriculture, Food and Veterinary Sciences. These are institutional and subject-area indicators; they do not rank this project or predict its supervision quality. The Disease, Epidemiology and Pathobiology research overview provides relevant institutional context but is not a project-specific equipment list. See SRUC's rankings and awards summary for the stated scope and year.

The opportunity is described as a four-year PhD associated with EASTBIO and SRUC. SRUC's postgraduate page outlines the PhD Agriculture, Rural and Environmental Studies route, application process and training elements. SRUC's announcement about its PhD programme says its research degrees are validated by the University of Edinburgh. The statutory 2024 note concerns a separate degree-awarding framework and does not establish how this specific student will be registered; confirm the formal registration and awarding institution in writing. See SRUC postgraduate research information, the PhD programme page and the 2024 statutory explanatory note. The current generic SRUC recruitment timeline appears to relate to an earlier intake. The project campus and training schedule remain unconfirmed.

Supervisor and Lab Assessment

Available project information says supervisors are listed on the project page, but their names have not been confirmed. SRUC's official profile for Janet Nale documents expertise relevant to bacteriophage research; her research profile lists related outputs and activities. This establishes topical relevance, not her formal appointment to this project. Salvatore Galgano's research profile provides adjacent pig gut microbiome and antimicrobial-resistance context, but his project role is also unconfirmed.

The wider SRUC disease research area is compatible with the animal-health question. Public institutional material reviewed here does not establish which fermentation equipment, phage collection, bacterial isolates, sequencing or microbiome assays are allocated to this project. Ask who leads each technical strand, how often the supervisory team meets, whether the model and isolate bank are already in place, and what facilities are accessible at the actual campus.

Funding, Application, and Living Cost

The opportunity description states a competition-funded, four-year studentship with UK-rate tuition and a living stipend. It does not state the stipend amount, start date, annual uplift or whether the full international fee is paid. The EASTBIO applicant FAQ says international applicants may apply, that the annual international intake is capped at 30%, and describes a fee-waiver arrangement for successful candidates. That general wording is not a project-specific guarantee. Obtain written confirmation that the waiver applies to this SRUC award and clarify visa and Immigration Health Surcharge costs. The EASTBIO partnership overview, UKRI studentship guidance and support guidance for UKRI-funded students are useful context. UKRI's 2026/27 minimum stipend of £21,805 is a dated benchmark only, not the promised amount for a later-starting studentship.

The stated closing time is 30 November 2026 at 12:00, but the timezone and current vacancy status are not independently confirmed by a matching SRUC project page. The generic programme page describes an earlier recruitment cycle and should not override the project-specific date. Ask the administrator for the current cohort's deadline in UK local time, award start date and application documents. SRUC's postgraduate research page is the generic programme reference.

SRUC's cost-of-living guide gives food at about £150–250 per month and private utilities at £100–150 per month, with rent examples varying by city. Because the project campus is unspecified and the award stipend is unreported, these figures cannot establish a stipend-to-cost budget; use the local housing guidance once the site is confirmed. UK career pathways are broad: the National Careers Service microbiologist profile describes laboratory, public-sector, commercial and research routes, while the national AMR plan provides policy context for One Health work. These sources describe possible sectors, not guaranteed outcomes or job demand for a particular graduate.

Applicant Fit and Preparation

Required Background and Skills

No formal degree classification, subject requirement, language score or application-document checklist was available in the project description. Ask the administrator for live eligibility criteria. Do not treat microbiology or veterinary science as a confirmed requirement unless the current advert says so.

Preferred Experience and Suggested Preparation

Relevant preparation would include microbiology or veterinary/animal biosciences, bacteriophage or bacterial culture, host-range or susceptibility assays, experimental design and quantitative handling of microbial data. Experience with fermentation systems or gut microbiome methods could help an applicant explain how to assess pathogen activity alongside commensal effects. These are preparation suggestions, not verified selection criteria. A clear application narrative would connect prior methods to phage characterization, cocktail testing and measurement of target and non-target effects, without claiming that live-animal work or a particular assay is planned.

Next Actions and Questions to Verify

Before Applying

• Confirm whether the project remains open and whether 30 November 2026 at 12:00 is UK local time.
• Request the formal stipend, award start date, tuition coverage, international fee-waiver decision and visa/IHS conditions.
• Confirm the campus, named supervisors, research-degree registration and degree-awarding institution.
• Obtain formal entry criteria and the application-document checklist.

At Interview

• Ask which E. coli isolates and phages are available, how the cocktail is selected, and how host range and resistance will be tracked.
• Ask for the fermentation-model workflow, controls, community-level readouts, practical training and expected milestones.
• Clarify whether the PhD includes in-vivo validation or remains within the simulated model.

Before Accepting an Offer

• Compare written award terms and local costs after the campus is confirmed; do not budget from a generic Scotland-wide figure.
• Confirm registration, supervisory structure and what happens if the fee waiver does not cover the international differential.

Evidence and Sources

Programme, institution and research environment

• SRUC postgraduate research opportunities
• PhD Agriculture, Rural and Environmental Studies
• SRUC PhD programme announcement
• 2024 statutory explanatory note
• SRUC institutional location and remit
• SRUC rankings and awards
• Disease, Epidemiology and Pathobiology research area

Supervisors and research evidence

• Janet Nale expert profile
• Janet Nale research profile
• Salvatore Galgano research profile
• Pig post-weaning diarrhoea evidence assessment
• Phage cocktail activity in epithelial models
• E. coli phage characterization study
• Bacteriophage therapy review in bovine mastitis
• Bacteriophage editorial on Salmonella
• Gut stability and encapsulation study
• Phage-amplification biosensor study
• Pig phage therapy systematic review and meta-analysis
• Veterinary phage therapy translation review

Funding, living costs and career context

• EASTBIO applicant FAQ
• EASTBIO partnership overview
• UKRI training-grant studentship guidance
• Support for UKRI-funded students
• SRUC cost-of-living guidance
• UK antimicrobial-resistance action plan, 2024–2029
• Microbiologist career profile