AHAD Lecture 2
- Created by: Alyssa laird
- Created on: 12-05-24 12:46
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- AHAD - Lecture 2 (Pigs)
- Disease control
- Good health
- better feed conversion
- profitable
- improved growth rates
- higher performance
- better welfare
- Diseased
- poor welfare
- poor public image
- risks human health (increased risk of AMR)
- not-profitable
- poorer feed conversion
- signs of health
- good health
- clear bright eyes
- no discharge from all or any orifaces
- curly tail / upright
- no stiffness or lameness
- alert and inquisitive behaviour
- poor health
- less active
- isolated from other pigs
- walking with back arched and tail drooped
- raised temperature, potentially shivering, coughing etc
- discharge, though they do get this when in oestrus and birth, so look out for colour and smell
- good health
- Good health
- weight
- use of BCS to determine quality of animal
- < 3 means underweight
- > 3 means overweight
- assess the backbone, shoulders and ribs, which if at 3, should be felt with gentle pressure
- different animals need different BCSs, as those who are pregnant need to be slightly overconditioned as they will most likely loose it when they give birth
- use of BCS to determine quality of animal
- FCR = feed consumed / liveweight gained
- epidemiology
- the study of the occurance, determinants and distribution of health and disease in a defined population
- pandemic = disease's growth is exponential and affects several countries and populations
- endemic = disease that is present but limited to a particular region
- epidemic = unexpected increase in no. of disease cases in a specific geographical area
- analytical epidemiology studies the determinants of disease, these are the host, the environment and the agent
- notifiable diseases
- Foot and mouth disease (FMD), Bovine TB, swine fever,
- muscular-skeletal issues - lameness due to management and disease
- very common for all ages
- risk factors: flooring, housing stocking density, group size, growth rate, nutrition
- list of diseases will be printed off
- GI issues = infectious and management issues
- needs good colostrum management, digestible creep feeds and reduced stressors
- respiratory issues = management and infectious
- bacterial, viral and parasitic, often secondary infections occur too
- PRDC caused by mycoplasma hyponeumoniae mainly
- GI issues = infectious and management issues
- bacterial arthiritis, caused by streptococcus suis (mainly)
- can be reduced by iron intake, clean equiptment when tail and teeth clipping, creep temperature
- GI issues = infectious and management issues
- needs good colostrum management, digestible creep feeds and reduced stressors
- respiratory issues = management and infectious
- bacterial, viral and parasitic, often secondary infections occur too
- PRDC caused by mycoplasma hyponeumoniae mainly
- urogenital issues = management and viral
- porcine reproductive and respiratory syndrome = young dont eat, red skin, hard to breath rough coats, whereas gilts/sows return to oestrus, abort, mummified fetus
- transmitted via replacements, vectors (flies, slurry) and areosol over short distances
- via nose touching, semen, through pregnancy etc
- need to be careful with replacements and biosecurity
- via nose touching, semen, through pregnancy etc
- transmitted via replacements, vectors (flies, slurry) and areosol over short distances
- Disease control
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