summer managment of poultry diseases nvk
TRANSCRIPT
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www.poultrykarnataka.netDr. Nitin V Kurkure
Technical Seminar
‘Summer Management of Poultry Diseases’
at 6:00 pm on Saturday 11 Mar 2017 Hampton Court, Hotel Fortune Park JP Celestial,
Race Course Road, Bangalore – 09
Dr. Nitin V Kurkure
www.poultrykarnataka.net
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www.poultrykarnataka.netDr. Nitin V Kurkure
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www.poultrykarnataka.netDr. Nitin V Kurkure
Facts
• Aspects of poultry production have changed through the 2000 and beyond 2010. – Birds have different genetic characteristics,– Much more productive, – Changes of medication and nutrition. – Peak summer temperatures as high as 480C (1180F), and
temperatures greater than 350C (960F) have been occurring more regularly.
– Temperatures have a major impact on performance of commercial poultry.
• Time to re evaluate summer management
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www.poultrykarnataka.netDr. Nitin V Kurkure
Summer
• March late – -start June
• Temperature range• Humidity • Rates of broilers
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www.poultrykarnataka.netDr. Nitin V Kurkure
How is heat produced in body• Includes
– maintenance, growth and egg production.
• Heat production is affected by– body weight, – species and breed, – level of production, – level of feed intake,– feed quality, – to a lesser extent, by the amount of activity and exercise.
1000 Laying hens produces equivalent of burning 231 lit. of furnace oil
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www.poultrykarnataka.netDr. Nitin V Kurkure
Other source of heat in shed
• Roof and walls• In hot weather, damp litter• Electric lights and motors (very small fraction)
Body heat is the dominant source of heat.
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www.poultrykarnataka.netDr. Nitin V Kurkure
How heat is loss from body
1-RADIATION :
2-CONDUCTION:
3-CONVECTION:
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www.poultrykarnataka.netDr. Nitin V Kurkure
4-EVAPORATION (Panting)
Panting removes heat by evaporation of water from the moist lining of respiratory trans.
540 times of respiration for 1 ml of water. (540 Calories of Energy / ml water lost) Physiological effect of Panting.
How heat is loss from body
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www.poultrykarnataka.netDr. Nitin V Kurkure
How heat is loss from bodyVery important at high temperatures as poultry donot sweat but depend on panting.
This is only effective if the humidity is low.
Hot, humid conditions are therefore much morestressful than hot dry conditions.
4-EVAPORATION (Panting)
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www.poultrykarnataka.netDr. Nitin V Kurkure
Heat stress
• This can occur at all ages and in all types of poultry
Heat production Heat loss
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www.poultrykarnataka.netDr. Nitin V Kurkure
Understanding the stress
“A deviation from normal condition is called the stress”.
There is redistribution of body resources including energy and protein at the cost of decreased growth, reproduction and health.
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www.poultrykarnataka.netDr. Nitin V Kurkure
Patho-physiology of heat stressStage of alarm reaction (Neurogenic system)
Short term regulation of stress
• Stage of resistance or adaptation (Endocrine system) Long term regulation of stress
• Stage of exhaustion Fatigue of Homeostatic mechanism and death
• Stress Activate its cooling capability by compromising other activities like digestion and absorption
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www.poultrykarnataka.netDr. Nitin V Kurkure
Shed temperature STRESS (3 phases)
66 – 76F - Ideal Temperature range (19 – 25 c) 76 – 86 F - Slight reduction in feed (25-30 c) Consumption and eggs size 86 - 90 F - Further drop in feed consumption (30-33 c) Cooling to start before this phase STAGE OF ALARAM >30°c
90 - 96 F – Further drop in feed consumption (33-35c) and egg production – cooling STAGE OF procedures to carry. ADAPTAION96 - 100 F– Heat prostration - Emergency >35°c(35-38c) measures increase water consumption. Over 100 F – Survival difficult unless good cooling STAGE OF (38C) and ventilation measures – Mortality FATIGUE >38
HEAT STRESS
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www.poultrykarnataka.netDr. Nitin V Kurkure
60oF / 16°C
Comfort Zone
SittingHead under wingsHuddlingFluffed feathersIncreased feed consumptionReduced activityShivering
Vasodilatation
Bird’s body temp.
Opening wingsPantingIncreased water consumptionReduced feed & Activity
70oF / 21 °C
80oF / 27°C
90oF / 32°C
100oF / 38°C
110oF / 43°C
116oF / 47 °C
Mortality
Chicken’s Response To Different temperature
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www.poultrykarnataka.netDr. Nitin V Kurkure
How does birds respond heat stress• Try to move away from other
birds.
• Move against cooler surfaces, such as the block walls or into moving air streams.
• Lift their wings away from their bodies to reduce insulation and expose any areas of skin that have no feathers.
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www.poultrykarnataka.netDr. Nitin V Kurkure
How does birds respond heat stress• Elect to pant slowly.
• Rest to reduce heat generated by activity.
• Reduce feed intake.• Increase water
consumption.
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www.poultrykarnataka.netDr. Nitin V Kurkure
How does birds respond heat stress• Divert blood from internal organs to the skin,
which darkens skin colour.
• Begin fast panting
Stress
Normal
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www.poultrykarnataka.netDr. Nitin V Kurkure
HEAT STRESS
Panting⇩
Increase Respiratory Rate⇩
Decrease CO2 level in blood⇩
Respiratory alkalosis
Heat stress depletes Ca, K, Po4 + Na and Cl increase
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www.poultrykarnataka.netDr. Nitin V Kurkure
SYMPTOMS OF STRESS• Impaired growth• Muscle degradation• Weak skeletal development• Anorexia• Abnormal body temperature• Poor feathering/feather loss• Panting
EFFECTS OF STRESS• Cardiovascular Diseases• Gastrointestinal Diseases• Metabolic rearrangement • Mineral metabolism •Immunosuppression
Ultimate Effect – Poor Performance
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www.poultrykarnataka.netDr. Nitin V Kurkure
Diseases encountered in summer
• Infectious – New Castle Diseases– CRD/ E coli– Infectious coreyza – Fowl Cholera– ILT
• Non infectious – Heat Stroke / Painting
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www.poultrykarnataka.netDr. Nitin V Kurkure
Summer management OPEN SIDED HOUSES 1. WET GUNNY CURTAIN ON SIDES WITH
CIRCULATORY FANS & FOGGERS.
2. THICK HDPE CURTAINS ON SIDES WITH CIRCULATORY FANS & FINE MISTING FOGGERS.
TUNNEL VENTILATED HOUSESIMPLE SYSTEM COMPRISES EXHAUST FAN AT ONE END AND COOLING PADS AT OTHER END.
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www.poultrykarnataka.netDr. Nitin V Kurkure
SUMMER MANAGEMENT
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www.poultrykarnataka.netDr. Nitin V Kurkure
Summer management
WET GUNNY CURTAIN ON SIDES WITH CIRCULATORY FANS & FOGGERS
ADVANTAGES :-• Cooling is very effective in dry summer as hot air
passes through wet gunny curtain gets cool.
• Less use of foggers in dry summer.
DISADVANTAGES:-• Difficult to operate in water scarcity zones.• Huge wastage precious water.• More electricity consumption. • Effectiveness sharply decline in hot and humid
season.• More maintenance required.
OPEN SIDED HOUSE
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www.poultrykarnataka.netDr. Nitin V Kurkure
Summer management
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www.poultrykarnataka.netDr. Nitin V Kurkure
Summer management
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www.poultrykarnataka.netDr. Nitin V Kurkure
Summer management
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www.poultrykarnataka.netDr. Nitin V Kurkure
Summer managementTHICK HDPE CURTAINS ON SIDES WITH
CIRCULATORY FANS & FINE MISTING FOGGERS
• ADVANTAGES:-1. Less water consumption compare to gunny system. 2. Less maintenance compare to side gunny system. 3. Economical.
• DISADVANTAGES:-1. More water consumption compare to tunnel ventilation.2. Less fresh air movement. 3. Not effective in hot & humid season.4. High maintenance.5. More use of foggers.
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www.poultrykarnataka.netDr. Nitin V Kurkure
Summer management TUNNEL VENTILATION
SIMPLE SYSTEM COMPRISES EXHAUST FANS AT ONE END AND COOLING PADS AT OTHER END
ADVANTAGES:-1. Less water & power consumption.2. Effective in all type of seasons.3. Low maintenance. 4. Conducive for shed hygine
DISADVANTAGE:-5. 100% Dependency on electricity.6. Not economical for small length shed (<350ft).7. High temperature gradient in longer sheds (>450ft).
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www.poultrykarnataka.netDr. Nitin V Kurkure
Summer managementHOT & HUMID
• Wetting gunny curtain has limited role • Still during day time it can be operated
to avoid heat coming from sides of the shed.
• Pulse fogging at peak hr is better• Ensure running of all fans to their
maximum efficiency.• Clean dust stick to the fan blades• Foggers should be over hanged instead
of placing them on cage top.
Inspite Of All Efforts This Season Is Difficult To Manage With This System
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Summer managementRoof management
White wash Roof tops.
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www.poultrykarnataka.netDr. Nitin V Kurkure
Provide 6 feet Side Pandal / Shamiyana in the south side of shed to avoid sunlight falling inside the shed
×
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www.poultrykarnataka.netDr. Nitin V Kurkure
Roof management Thatching of Roof tops.
Arrange sprinklers on roof top.
Summer management
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www.poultrykarnataka.netDr. Nitin V Kurkure
Feed management 1. Addition of Vit-C, electrolyte, soda bi -carb &
small enhancement in other Vitamins.
2. Slight reduction in protein % balancing it by adding synthetic amino acids.
3. Mould growth & feed toxins more hence effective toxin binder can be added.
PERIODICAL FEED TESTING FOR TOXINS LEVEL IS MUST
Summer management
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www.poultrykarnataka.netDr. Nitin V Kurkure
Summer management
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www.poultrykarnataka.netDr. Nitin V Kurkure
Summer managementFeed management
1. Feed in cool hours of the day
2.Wet mash feeding
3. Artificial light may be provided 4. to suit the feeding in cool hours.
5. Add Betain Hcl in feed
6. Addition of KCL in feed
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www.poultrykarnataka.netDr. Nitin V Kurkure
Summer managementTO Meet Body Requirements
Provide extra electrolytes and minerals in water.
Provide extra Vitamins – C, D, B complex.
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www.poultrykarnataka.netDr. Nitin V Kurkure
Summer managementTO Meet Body Requirements
Feeding of chelated Chromium helps to fight heat stress
Modulation of immune response
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www.poultrykarnataka.netDr. Nitin V Kurkure
Summer management
Temperature 22oC 32oC
Broiler3rd weeks
100 Ltr 210 Ltr
Broiler6th weeks
280 Ltr 600 Ltr
Water management
WATER CONSUMPTION WITH CHANGE OF TEMPERATURE (1000 birds)
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www.poultrykarnataka.netDr. Nitin V Kurkure
× ×Cover the water tanks with agro waste filled
cover with gunny
Summer managementWater management
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www.poultrykarnataka.netDr. Nitin V Kurkure
Flushing Water from Drinker Line
Keep more than 80% water in the water tank which reduces temp of waterFlush water from the drinker line 2 to 3 times in summer still the chillness is felt in the palm of the hand
Water management Summer management
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www.poultrykarnataka.netDr. Nitin V Kurkure
Cover the exposed pipe lines with gunny cloth
×
Water management Summer management
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www.poultrykarnataka.netDr. Nitin V Kurkure
Water management Summer management
• Treat water for drinking
• Treat water used for mist and spray
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www.poultrykarnataka.netDr. Nitin V Kurkure
Summer management Avoid over crowding / give more space.
Feeders cleaning during fogging time.
Run water in feeder channel when temp is
high
Fly control – manure removal.
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www.poultrykarnataka.netDr. Nitin V Kurkure
Summer management Do not disturb birds day time.
Monitor shed temp. by thermometers.
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www.poultrykarnataka.netDr. Nitin V KurkureThank you