Module 4

5 pcs

Number of Bulbs/Lamps per 1000 heads

Fluorescent Lamp - 20 W / #__?

3 pcs

Number of Bulbs/Lamps per 1000 heads

Fluorescent Lamp - 40W - #___?

4 pcs

Number of Bulbs/Lamps per 1000 heads

Incandescent Bulb - 50W / #__?

2 pcs

Number of Bulbs/Lamps per 1000 heads

Incandescent Bulb - 100W / #__?

0.5-1 watt

Light Intensity is ____ /sqm

24

Continued Lighting Program is for how many hours?

Proper Curtain Management

-    necessary to maintain the correct brooding temperature and prevent drastic changes

Open

____ the curtains if outside temp is high (hot)

Close

____ the curtains if outside temp is low (cold)

20

Ammonia can be noticed at a level of __ ppm

10

Ammonia

At __ ppm can impair the lungs

10-15ppm

Can be detected by smell

20

At __ ppm and above can lead to RTI

Respiratory Tract Infection

RTI means?

25-35 ppm

Conjunctivities and runny nose occur

50

At __ ppm, impairs growth and results to severe RTI and eyes of broilers become watery and inflamed

75 ppm

Broilers will jerk their heads and show discomfort

Ammonia blindness

Induces _____ ______ if concentration exceeds 50 ppm

0.35

Carbon Dioxide

At ____% of air content leads to Ascites

Ascites

Accumulation of water in the abdomen

100

Carbon Monoxide

At ___ ppm, blood oxygen binding is greatly affected. Higher levels can lead to death

Dust

Destroys respiratory tract lining

Poor Ventilation

failure to remove waste gases from the bird’s environment can lead to heart and lung disease

Temperature, humidity, air movement

Bird comfort is determined by the combination of

Reduced feed intake

Consequence of Heat Stress

• _________________

• reduced growth rate

• reduced feed efficiency

• icreased mortality

Reduced growth rate

Consequence of Heat Stress

• reduced feed intake

• _________________

• reduced feed efficiency

• icreased mortality

Reduced feed efficiency

Consequence of Heat Stress

• reduced feed intake

• reduced growth rate

• __________________

• icreased mortality

Increased mortality

Consequence of Heat Stress

• reduced feed intake

• reduced growth rate

• reduced feed efficiency

• __________________

150, less

Heat Stress Numbers: when the sum of the total is ______ or ______ - no problem

155

Heat Stress Numbers: when the sum of the total is ______ - borderline of problem

160

Heat Stress Numbers: when the sum of the total is ______ - off feed, increased water intake, production loss

165

Heat Stress Numbers: when the sum of the total is ______ - same as 160 but with first mortality

170

Heat Stress Numbers: when the sum of the total is ______ - same as 160 but with high mortality

25° F

There should be a spread of ____ between relative humidity and dry bulb temperature for chickens to remain within their thermal neutral zone for comfort and performance anytime the temperature reaches 90F

90° F

There should be a spread of 25° F between relative humidity and dry bulb temperature for chickens to remain within their thermal neutral zone for comfort and performance anytime the temperature reaches ____

41.5˚C

-    In well-fed chicken under thermoneutral conditions, the upper limit of Tb is usually _____ and the lower is about 40.5˚C.

40.5˚C

-    In well-fed chicken under thermoneutral conditions, the upper limit of Tb is usually 41.5˚C and the lower is about _____

1-2oC

-    When birds are exposed to either heat or physical activity, body temperature (Tb) will rise by ____

Short Term Response

Bird Response

In some instances, the responses are short term measures that are invoked to enable the bird to withstand a brief period of extreme temperature.

Long Term Response

Bird Response

-    The responses can also be invoked to provide a longer-term response aimed at acclimatization of the bird to ambient temperatures that fall within the upper region of thermoregulatory zone.

Behavioral Adjustment

-    can occur rapidly and at less cost to the bird than most other physiological adjustments.

center of the house (under the monitor)

Broilers will be found in the ___________ during mid –day

eastern side

o In the afternoon, broilers will migrate to the _______ of the house

Evaporative & Non-Evaporative Heat Loss

The bird will fight increase body temperature by:

Conduction

Through the tissue by direct transfer of heat

Vascular Convection

By increasing blood flow to peripheral tissue

Panting

one of the visible responses of poultry during exposure to heat.

155, 42°C

Birds begin panting when heatstress numbers exceeds ____, or when Tb reaches ____.

80%

-    a consequence of panting is the loss of water from the body. Heat stressed birds dissipate over ___ of their heat production by evaporative cooling, so it is possible that such birds would benefit from an increase in water intake

Vitamin C

-    weight gains, nutrient digestibilities, bone resistance and immunity were improved with _____, with a plateau at 100 200 ppm

100-200 ppm

-    weight gains, nutrient digestibilities, bone resistance and immunity were improved with Vitamin C, with a plateau at 100-200 ppm

100 ppm

-    Usually feeds already have Vitamin C levels of ______.

Drinking water

Additional Vitamin C supplementation is programmed via the _________

Water

• 70% bodyweight

• Medium for all biological reactions

• Essential for heat dissipation

• Facilitates digestion

• Nutrient absorption

• Lost through urine with electrolytes

23C

drinking water temperature of ____ enhanced feed and water intake in heat stressed laying hens

18%

-    growth rate increased by ___ as water temperature decreased from 42 to 16C

2-3

Feed must be provided after about ____ hours when the chicks have learn to drink.

5-10%

The availability of drinking water to the chicks must be emphasized. the addition of ____ of sugar in the drinking water can be done for their first 6 -8 hours during the arrival of the DOC

6 -8 hours

The availability of drinking water to the chicks must be emphasized. the addition of 5-10% of sugar in the drinking water can be done for their first _____ during the arrival of the DOC