Home Crop Monitoring Proper Management Measures for Poultry Birds During Summer (Heat)

Proper Management Measures for Poultry Birds During Summer (Heat)


Summer (Warmth) season causes variety of deleterious results on broilers and layers which in the end reduces profitability. Summer (Warmth) stress has been a severe concern for poultry producers because it instantly results in monetary losses by impaired poultry efficiency.

What precisely occurs to Poultry birds in warmth stress?

Poultry birds turn into warmth burdened after they have problem in reaching stability between physique warmth loss and physique warmth manufacturing, the traditional physique temperature of poultry being 41ºC.

When environmental temperature exceeds 35ºC chook is prone to expertise warmth stress. In an impact to keep up physique temperature birds first depend on dropping warmth from blood vessels close to floor of pores and skin by course of referred to as “non-evaporative cooling”.

Nevertheless, this mechanism is barely efficient when ambient temperature is decrease than chook’s physique temperature. As ambient temperature will increase past chook’s thermo impartial zone, non-evaporative cooling turns into ineffective. At these increased temperatures, birds depend on panting/ evaporative cooling as mechanism for controlling physique temperature.

Panting is an efficient however vitality costly means for the chook to manage physique temperature and sometimes leads to decrease feed consumption and development in addition to decreased feed effectivity between 20-30ºC feed intakes is decreased by 1-1.5% for 1ºC rise in temperature and by 5% above 32ºC.

Learn Additionally: Poultry Farming and Opposed Season as a Stressor

It will improve water consumption to offset water loss however state of affairs is difficult by the truth that physique’s means to retain water is decreased because the evaporative cooling course of escalates.

Proper Management Measures for Poultry Birds During Summer (Heat)

During excessive ambient temperatures, the birds improve panting as much as 10 instances from a traditional price of 25 breathes/min to 250 breathes/min. this results in an extreme lack of carbon dioxide leading to raised blood plasma bicarbonate ranges and elevated pH by excreting bicarbonates through urine.

Bicarbonates are negatively charged ions that should be coupled with positively charged ions reminiscent of potassium to be excreted in urine.

Nevertheless, as potassium is necessary in sustaining intracellular water stability, a lack of potassium ions through urine reduces means to keep up this water stability.

Consequently, whereas birds do compensate for water losses related to panting by consuming extra water, its retention within the physique cells is proscribed by simultaneous lack of electrolytes reminiscent of potassium in urine.

Results of Warmth on Poultry Birds

Most necessary impact of warmth stress is lower in physique resistance and extra susceptibility to E.coli and CRD and so forth. in summer time outbreaks of gout could also be seen in broilers and layers.

In warmth burdened birds, blood circulation will increase higher respiratory tract, pores and skin and stomach muscle tissue for relieving warmth, nonetheless, blood circulation to intestinal tract is decreased. Consequently there may be discount in urge for food resulting in decrease feed consumption.

Concurrently water consumption is elevated leading to fluid contents in intestinal tract. This additional trigger’s diarrhea that leads to lack of electrolytes wanted to keep up acid base stability.

Learn Additionally: Vaccination Program for Poultry Chickens

Medical Indicators or Signs

the next medical indicators might be noticed in warmth burdened birds:

  1. Panting / Speedy respiration
  2. Extra consumption of water
  3. Diminished urge for food
  4. Discount of egg manufacturing
  5. Poor egg shell high quality
  6. Much less physique weight acquire in broilers
  7. Diminished feed effectivity
  8. Enhance in physique temperature

Publish Mortem Lesions

They embody:

  1. Dehydrated carcass
  2. Mucoid exudates in mouth and nostrils
  3. Pale/cyanotic combs
  4. Pale breast muscle tissue
  5. Congestion of liver, spleen, kidney and lungs
  6. Fluid contents in intestines
  7. Speedy decomposition of carcass.

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