Explanation

(a) (i) External parts of a cock

- toe/digits

- wings

- tail

- breast

- claw  

- wattle

- feathers

- comb

- nostril  

- beak

- eye

- earlobe/ear

- hock

- thigh

- neck

- leg/shank

- spur

(ii) Viral diseases a poultry

- Fowl pox

- Bird flu/avian influenza

- Newcastle disease

- Mareks

- Gumboro/infection us bursal disease Infectious bronchitis,

(b) Signs observed in a sick farm animal

- loss of appetite restlessness

- loss of weight/cm emaciation

- anaemia

- diarrhea/excessive stooling

- coughing/sneezing

- fever/ high body temperature gnashing of teeth

- stained urine

- undue noise

- alopecia/ loss of  air

- swollen skin/oedem

- sudden death/ coma vomiting,

- blood-stained faeces constipation

- standing hair/ rough feather/ droopy wings

- convulsion

- isolation from the flock nasal discharge

 - oozing of blood from natural openings/orifices

- ocular discharge

- excessive salivation

- difficulty of breathing

- inflammation of organs

- skin blister/ inflammations/reddened skin
- skin irritation
- weakness 
(C) Explanation of terms 
(i) Drenching
It is given using a certain dose of solution to an animal. 
 - It involves the use of drench bottles/drenching gun. 
- It is done to control endoparasites. 
(ii) Dipping
- The process of passing animals through chemical solution to remove ectoparasites 
- It is done when weather is fair. 
- Animals should not be thirsty and hungry before dipping. 
(d) Body systems in farm animals 
- circulatory system 
- digestive system 
- reproductive system/reproductory system 
- respiratory system 
- Muscular system 
- endocrine system nervous system 
- excretory system 
- lymphatic system 
- skeletal system 
- integumentary system 
 

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