Have a special pair of boots/shoes that you will use only when you are working in your poultry house
Leave sufficient time between batches of birds to clean the house and get rid of diseases that need to have a bird (host) to survive
Remove old litter, dirty bags and contaminated rubbish and dump them far away but in a responsible place that will not contaminate the environment
Discard damp, old feed. It can grow mould which can produce toxins. They can kill or make your chickens sick
All in-all out systems in which all birds are the same age help to reduce disease out breaks
25
External parasites such as mites, lice and fleas can make your poultry feel uncomfortable. This will affect their growth rate and egg production
Insecticides are used to treat the infected birds. A dust bath will also help to reduce these external parasites
Internal parasites such as different worms and minute protozoa causing coccidiosis can be prevented by medication
This is done routinely by adding a coccidiostat to the mixed feed for broilers
Remove immediately sick birds and bury dead birds.
Never eat or sell sick birds; they will make your family and others ill
7.1 Newcastle disease
There are two diseases that are particularly dangerous in many low-income countries. Newcastle disease (ND) is endemic (always there) in many countries and becomes active particularly at the start of the wet season. It can wipe out entire village flocks although a few individual birds often do survive. There are now ND vaccines that will withstand the heat for a short period (thermostable) of time. Vaccination is most effective by eye drop and birds should be vaccinated a month before expected outbreaks by a trained person. There is also a need to treat the birds at intervals through out their life. This is a specialised area and the poultry keeper will need help from experts but it is well worth the effort and the vaccine is not expensive.
26
7.2 Avian influenza
The H5N1 strain of highly pathogenic avian influenza (bird ’flu) is particularly dangerous not only because it can infect different poultry species and wild birds but it can also kill humans. Village poultry are especially at risk because they are outside and may be in contact with wild birds and other poultry species (ducks, geese). The disease spreads rapidly through the poultry flock.
The virus can be spread by eating infected birds and can kill the consumer particularly if she/he is young. Household poultry keepers should keep themselves informed about the situation in relation to bird ‘flu as it often appears at particular times in the year.
EXERCISE
What will you do to stop your chickens from getting sick? Make a short statement.
____________________________________________________________________________________________________________________________________________
What will you do if they do get sick? Make a short statement.
________________________________________________________________________________________________________________________________________________
___________________________________________________________________________
We will now discuss the two specialised areas of commercial (intensive) poultry production: broiler (meat) production first and then egg production.
[END OF UNIT III]
27
UNIT IV
8. COMMERCIAL BROILER MEAT PRODUCTION
Chicken meat is very popular throughout the world. It is seen as a healthy meat low in fat and rich in protein (lean meat). It is a meal for a family so you don’t need a refrigerator
To prepare for the chicks’ arrival it is best that you have a time plan or schedule
the house will be thoroughly cleaned and disinfected
shavings or litter on the floor
the brooder surrounds in place
the brooder heater checked and adjusted (if there is one)
feeders and drinkers in place. Chicks usually look for water first.
a supply of a small amount of starter feed is scattered on paper on the floor of the brooder so that the chicks can start to eat
28
For the first 7-10 days the chicks will be brooded (see section 5.) Broiler chickens can grow very fast but only when well looked after and given good feed
After 3 weeks of age when the house temperature is less than 28–30 oC they grow best. In the tropics, the temperature is normally above 30 oC in the day time so they will grow a bit slower than usual
Some chickens will die in the first week particularly those that are small and weak. You must remove and bury them immediately
You can expect to lose at least 4 - 5 chicks out of 100 in the first 3 weeks. Another 2 may die later. Mortality can be much higher especially if management and housing conditions are poor. Some broilers, as they get older, may become lame and are unable to walk and get to the feeders. This is partly a breeding problem but may be reduced by slowing growth in the second week for about a week by limiting feed intake.
