How to understand relative humidity and temperature regulation in poultry

Page 1

© Copyright RCI


© Copyright RCI


© Copyright RCI


IN SUMMARY IN HIGH ENVIRONMENTAL TEMPERATURES (ABOVE 25oC AND R. HUMIDITIES ABOVE 40%) HOMEOSTASIS BEGINS TO FAIL AND

HEAT STRESS COMMENCES

As heat stress progresses, deep body temperature rises: for every 1oC rise, metabolic rate increases 20-30%. The temperature rise is detected in the hypothalmus which initiates behavioural and physiological responses as shown below.

SPREADS WINGS

PANTING

Cools the body by EVAPORATIVE COOLING (loss of H2O) from the lungs "x" mLs H2O = "x" calories of HEAT

STOPS EATING AND DRINKS MORE (2x)

To radiate heat from body to ground

RESPIRATORY RATE

To lower production of METABOLIC HEAT and to cool body via the gut

SHUNTS BLOOD Away from gut to reduce production of METABOLIC HEAT

H + HCO3 = H2CO3 = H2O + CO2 á Lactic + NaHCO3 ð Na + H2CO3 ð H2O + CO2 á Acid Lactate

(from 20-250/minute)

To comb to increase heat loss

URINE EXCRETION

is increased due to less antidiuretic hormone being secreted

Respiratory Alkalosis where CO2 and HCO3 are lost Plasma pH up to 8.0 (or so)

and thus the control of all reactions within the cells. This leads to at least 25% loss of productivity.

+

IT IS ESSENTIAL

+

+

+

Na and K balance is lost H2O is lost + Na is lost

ACID/BASE BALANCE IS LOST

Intracellular pH to + acid where K is lost

-

TO RESTORE ELECTOLYTE Na : K : HCO3 TO ENHANCE INTRACELLULAR RECOVERY TO PROVIDE COOL DRINKING WATER

OTHERWISE ENZYME AND COENZYME REACTIONS (PRODUCTIVITY) WILL NOT RECOMMENCE

The answer lies in the use of ANIGANE and SELECTOLYTE

( HELP LINE FOR ADVICE OR PRODUCT INFORMATION

FREE CALL

in Malaysia 1800 470 1800 802 802 470 in Philippines 1800 1800 1 1 61 61 20014 20014

RURAL CHEMICAL INDUSTRIES (AUST) PTY LTD Unit 5, 7-9 Kent Road, Mascot, NSW 2020 Australia Mailing address: PO Box 6316 Alexandria, NSW, 2015 Australia Phone: 13002651 388 +61 2 96670700 Phone: +61 9667 0700 Email: info@rci.com.au Phone: 1300 651 388 Fax: 02 9669 0430 Fax: +61 2 9669 0430 Email: info @rci.com.au Fax: +61 2 9669 0430 Website: www.rci.com.au Email: info@rci.com.au Website: www.rci.com.au l www.heatstress.info Websites: www.anigane.info l www.selectolyte.info © Copyright RCI


Turn static files into dynamic content formats.

Create a flipbook
Issuu converts static files into: digital portfolios, online yearbooks, online catalogs, digital photo albums and more. Sign up and create your flipbook.