Journal of Stress Physiology &
Biochemistry, Vol. 9 No. 3
2013, pp. 54-60 ISSN 1997-0838
Original Text Copyright (cc) 2013 by Aarif, Mahapatra, Yatoo, Dar
ORIGINAL ARTICLE
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QueryDate : 2016-12-24
Cites : 0
Impact of Cold Stress on
Physiological, Hormonal and Immune Status in Male and Female Broad
Breasted White Turkeys
Ovais Aarif1*, P.S.
Mahapatra2, M.A. Yatoo2 and Showket Ahmed Dar3
1 Dairy Cattle Physiology
Division, National Dairy Research Institute, Karnal-132001 (India) 2 Indian Veterinary Research Institute, Izzatnagar (India) 3 Skuast-Kashmir (India)
In this study
physiological, certain blood hormones and immune status of male and
female Broad Breasted White turkeys were recorded under cold stress.
Birds were acclimated two weeks prior to the start of experiment and
later divided into two groups. Control group (n=12 with equal number
from each sex) was maintained at an environmental temperature of
27-30°C and Test group (n=12 with equal number from each sex) was
housed in a designed chamber were the temperature
(10±1°C) remained stable at least
for 5-6 hours in a day. After
3 consecutive days (72 hours) of temperature treatment
Phytohaemagglutinin-P (PHA-P) at the dose rate of 0.5 mg in 0.1 ml PBS
were injected to the patagium of both control and test group of birds
to study the cell mediated immune response by measuring the dermal
swelling in response to inflammatory reaction after 24 hours of
injection of Phytohaemagglutinin-P (PHAP). After 96 hours of cold
treatment the blood samples were collected from the wing vein to
analyze the blood hormonal levels using standard protocols. The
physiological parameters like respiration rate, rectal temperature and
surface temperature were recorded at the morning hours of
the day during experimental period.
Significant difference (p≤0.01) between treatments
were observed in body temperatures, respiration rate, Heterophil%, H/L
ratio, Wing web thickness, T4 and cortisol levels.
Key
words: Broad breasted white turkeys, cold stress,
hormones, immunity
