Occupational Safety, Bio-security and Animal Welfare
This domain covers the safety of the worker, the visitor and the animal: what you wear, what you do with sharps and chemicals, how you keep disease out, and how you handle animals humanely.
Worker safety
- PPE: gumboots, gloves, apron, mask when handling chemicals or silage; eye protection when spraying.
- Zoonoses: brucellosis (abortion material), tuberculosis, anthrax, rabies, leptospirosis. Handle abortion and afterbirth with gloves, never bare-handed; wash and change.
- Sharps: do not re-cap needles; keep a puncture-proof container; never reuse a needle across animals.
- Chemicals: store acaricides, disinfectants and veterinary drugs in a locked cupboard, in original labelled containers, away from feed.
- No eating, drinking or smoking in the shed; wash hands before meals.
Biosecurity
- One entrance, foot bath, visitor log, vehicle wheel dip where practical.
- Quarantine new animals 21–30 days; isolate sick animals; control rodents, birds and stray dogs.
- Dispose of carcasses by deep burial with lime or by incineration, away from water sources.
- Clean and disinfect calf pens between calves.
Animal welfare: five freedoms
Freedom from hunger and thirst; from discomfort; from pain, injury and disease; from fear and distress; and freedom to express normal behaviour. Practical signs: dry lying space, rumination, no lameness, no tail twisting, no beating, gentle restraint and water always available.
Worked example
A worker is accidentally injected with a vaccine needle. Reasoning: this is a sharps injury with possible oil-adjuvant exposure. Wash the site, do not squeeze, report immediately, record the incident and get medical advice. The root cause is usually re-capping or carrying an uncapped needle, which the biosecurity plan should prohibit.
Traps
- Handling aborted fetuses with bare hands.
- Reusing needles and syringes between animals.
- Storing disinfectant in a water bottle.
- Treating welfare as sentiment rather than as a production issue.