Health investigations Flashcards
What flock details are important for health investigations?
- Source of replacement stock
- Stocking density
- Biosecurity measures
- Overall flock health
- Vaccine protocols
- Parasite protocols
What biosecurity measures needed to be considered for investigation health problems?
- source of birds/eggs
- nearby water sources
- waste disposal
- introducing new birds?
- disinfectant usage + effects
What management aspects are relevant for health investigations?
Feeding regime Feed products Use of grit and treats Water source Vermin control Parasitic control Vaccine protocol Housing + shelter Access to wild bird population
What housing aspects are relevant for investigating flock health?
Assess their environment
Examine equipment used
How should chickens be held?
Legs restrained with supporting hands
Support bird’s chest with hand or arm
What are the risks posed by improper handling?
- respiratory distress
- skeletal injuries
- stress
- death
What danger is presented by holding birds tightly by the chest?
Movement of air sacs for breathing is prevented
What are the main groups of air sacs?
Clavicular
Thoracic
Abdominal
How should turkeys be handled?
Supporting hand should restrain legs
Bird should be tucked under arm
Bird should face away from you
What are the normal TPR parameters?
T 40-42°C
HR 120-160 bpm
RR 20-130 bpm
Which is the most significant clinical exam parameter?
(Increased) temperature
What should comprise a poultry clinical exam?
Temperature Mouth Oropharynx External parasites Vent Abdomen Feathers
What should the vent be checked for?
Discharge
Prolapse
Diarrhoea
What should the abdomen be examined for?
Bird’s conformation
Ascites
What checks could be done for the feathers?
Cleanliness
Breaks
Plumage covering
What external parasites affect poultry?
- lice
- red mite
- Northern fowl mite
- scaly leg mite
- de-pluming mite
How do avian RBCs differ from mammalian ones?
Nucleated erythrocytes
What elements are there for faecal examination?
- Faecal sample
- cloacal swab
- dropping collected - Parasites
* worm eggs
* protozoal oocysts
Name the worm species that affect chickens.
Trichostronglyes Heterakis gallinarum Syngamus trachea Capillaria Ascaridia galli Trichomonas gallinae Amidostomum nodulosum (gizzard worm)
What protozoal species affecting chickens?
Eimeria (5 spp in chickens) Histomonas meleagridis Hexamita meleagridis Giardia lamblia Trichomonas gallinae Cryptosporidia
What imaging modalities are feasible for poultry diagnostics?
- Radiography
- Ultrasound
- Endoscopy
What imaging modality can be used for sexing chicks?
Endoscopy
What features of the head should be checked during a clinical exam? What is normal?
Nostril -- dry Comb -- red Comb colour, shape + brightness Beak -- normal shape Feathers -- present, shiny
What body features indicate a healthy individual?
Good weight Sufficient musculature for age - check breast m Clean vent Smooth, strong shanks Straight toes
What features can be used to assess BCS?
Scale 1-5
- Fat coverage on pin bones
* Breast m covering
What effect does excess weight have for egg production?
Poor number of eggs laid if overweight
Which bones are fused in a bird’s wing?
Metacarpals
What is the name of the bone adjoining the metacarpals?
Alua
In the leg, what bone connects the femur and the tarsometatarsus?
Tibiotarsus
What is the layman term for the tibiotarsus?
Shank