Avipro co ltd

UGANDA :CURLY TOE PARALYSIS
MADAGASCAR : SLIPPED TENDON
AVIPRO CO LTD
CHICK QUALITY
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THE ENVIRONMENT ON THE BREEDING FARM:
BIOSECURITY :
WHEN OLD BREEDING FLOCKS ARE SLAUGHTERED ALL POULTRY HOUSES AND EQUIPMENT
MUST BE THOROUGHLY CLEANED ,WASHED AND DISINFECTED FOLLOWED BY A RESTING
PERIOD OF AT LEAST 10 DAYS.
THE DRINKING WATER SYSTEM ( PIPES ) MUST BE CLEANED BY USING A DETERGENT
FOLLOWED BY A DISINFECTANT .
A CHANGING ROOM MUST BE AVAILABLE AT THE ENTRANCE OF THE FARM .EVERYBODY MUST
SHOWER CHANGE CLOTHES AND WEAR UNIFORMS AND BOOTS BEFORE GETTING ACCESS TO
THE POULTRY HOUSES.
APPLY A RODENT CONTROL SYSTEM : RODENTS CAN BE VECTORS OF NUMEROUS DISEASES.
MAINTENANCE OF WATER QUALITY
Drinking water at the entrance of the farm can be recontaminated in the tank and pipes:
PIPES + BIOFILM
WATER
WATER
HEAT
Development of micro-organisms
potentially pathogenic
Cleaning of tank and pipes with suitable products during the empty
period
Alkaline-chlorine to remove organic matter
Acid to avoid encrusting of minerals
+ mechanical action from water pressure in closed circuit + rinse
AVIPRO CO LTD
CHICK QUALITY
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CARE OF HATCHING EGGS :
The nests must be clean with non contaminated nesting material : should be
fumigated prior to being added in the nests ,stored in dry conditions in a well
ventilated area and protected against wild birds ,rats and other vermin.
Replace the nesting material as regularly as possible .Remove faecal matter and
any broken egg as soon as possible.
Add 5 to 10 grams of para-formaldehyde powder , if not banned , in each nest
every fortnight.
Collect the eggs four or five times daily .Do not pick floor laid eggs
simultaneously with nest eggs.
Fumigate the eggs twice daily or better after each collection : most common
products used are Para -formaldehyde powder at the rate of 10 grams per m3
or Formalin ( 40 % ) and potassium permanganate at the rate of 45 ml and 30
grams per m3 .
Allow a minimum contact time of 20 mins at a temperature between 24 and 35
0 Cen and humidity of 85 to 90 % for a maximum germicidal effect.
Litter on the floor must be dry and friable – no damp cakes .
NEST BOX WITH FRESH WOOD
SHAVINGS
CLEAN NESTING MATERIAL
AVIPRO CO LTD
CHICK QUALITY
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Caky litter will stick to the toes of
the hens. .When they enter the
nests to lay they will carry the dirt
inside and contaminate the eggs
in the nests .
When an egg is laid its
temperature is around 40
degrees Cen and it will cool to
ambient temperature .If the
environment is contaminated ,
bacteria or fungi will enter the egg
.When he egg is placed in the
incubator the pathogens will grow
very quickly and infect the
embryo.
CAKY LITTER
MALES CAN SUFFER FROM BUMBLE
FOOT OR PODODERMATITIS
CAKED LITTER
AVOID WATER SPILLAGE FROM
DRINKERS
Drinkers must be adjusted to avoid
water spillage on the litter.
Wet litter should be removed as
soon as noticed .
Hens will tend to play in the wet
litter which contains bacteria the foot pads and nails will be
soiled and they will
contaminate the eggs in the
nests: result“Bangers “in the
incubator.
WET LITTER MUST BE REMOVED IMMEDIATELY
HEALTH STATUS OF BREEDERS
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If the Breeder flocks are not in good health the quality of the
hatching eggs will also be affected.
Infectious Bronchitis ,Newcastle disease or Egg drop Syndrome will
affect the quality of the shells : soft shells , wrinkled eggs ,
misshapen eggs , discoloured eggs cannot be set in the incubator.
Any condition which affect the intestinal wall will also decrease the
absorption of vital nutrients necessary for good egg formation and
embryonic development : Eg :Chronic Coccidiosis , Necrotic enteritis ,
Viral infections :adenoviruses, reoviruses, enteroviruses : they will all
affect the breakdown of feedstuffs into basic components for
absorption through the intestinal wall with consequential adverse
effect on the quality of hatching eggs.
AVIPRO CO LTD
CHICK QUALITY
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STORAGE OF HATCHING EGGS :
Recommended Hatching eggs storage temperature :
1 to 2 days : best at 19 o Cen 70 % Relative Humidity
3 to 6 days : best at 17 o Cen 80 % RH
7 to 12 days : best at 14 o Cen 85 % RH
13 TO 16 days : best at 12 o Cen 90 % RH
Storage period longer than 8 days will affect hatchability and
chick quality particularly from older flocks.
AVIPRO CO LTD
CHICK QUALITY
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TURNING OF EGGS DURING STORAGE:
It is generally agreed that turning prevents excessive
dehydration and oxidation of the embryo as the yolk is less
likely to stick to the shell membranes.
Turning eggs during storage particularly from older flocks is a
good practice if at all possible.
AVIPRO CO LTD
CHICK QUALITY
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Hatching eggs should be transported from the farm to the
hatchery in special egg boxes or carton boxes to avoid shocks
which can cause hair cracks .
At the egg reception room , the eggs must be checked for
cracks or for misshapen eggs .Keep only the eggs which are
clean and in good shape for incubation.
Do not clean dirty or soiled eggs .
If the eggs must be kept for period longer than 14 days it is
advised to store them small end up so that the yolk remains in
contact with the albumen and keeps the ‘’embryo ‘’ away from
the shell membrane.
AVIPRO CO LTD
CHICK QUALITY
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It is agreed that storage period increases the total incubation time.
Mather C. and Laughin K. showed that the embryonic development of
of eggs stored for 14 days compared to fresh eggs was delayed by 12
hours : 504 hrs + 12 hours .
Egg storage not only interferes with the hatch results but chick
quality and subsequent growth as well.It is therefore essential to
ensure that storage and incubation conditions be perfectly managed.
The day that the eggs will be incubated it is important to preheat
them in order to bring the majority of embryos to arrive at more or
less the same level of development .The hatch window which is the
period between the hatching of the first and last chicks will be
shorter.
One can just remove the egg trolleys from the cold room some 12
hours before setting time.Preheating reduces the hatch window and
thus improves the chick quality.