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Current IssueEditorial BoardOnline First ArticlesArchive

Research Article

volume 52 issue 1 (january 2018) : 157-159,   Doi: 10.18805/ijar.B-3441

Effect of heat stress for specific period on juvenile traits, feed efficiency and some heat stress parameters in different genetic groups of broilers
 

B
B.L.N. Reddy
K
K.S. Rajaravindra
U
U. Rajkumar
M
M.R. Reddy
1ICAR-Directorate of Poultry Research, Rajendranagar, Hyderabad-500 030, Telangana, India
Cite article:- Reddy B.L.N., Rajaravindra K.S., Rajkumar U., Reddy M.R. (2017). Effect of heat stress for specific period on juvenile traits, feed efficiency and some heat stress parameters in different genetic groups of broilers. Indian Journal of Animal Research. 52(1): 157-159. doi: 10.18805/ijar.B-3441.

ABSTRACT

To evaluate the effect of heat stress an experiment was conducted in which one cross (PB-1X Naked neck), two pure lines ( PB-1 and Naked neck) and corresponding control populations were generated simultaneously on the same day.120 chicks in PB-1X Naked neck  (Control 120), 91 chicks in Naked neck pure( Control 82) and 81 chicks in PB-1 pure ( Control 80)were generated. Temperatures were raised (up to 40°C) by providing the two halogen lamps in each of the heat stressed genetic groups from 4-6 weeks of age. Body weights were recorded at 0, 2,4, 6 and 7 weeks of age along with conformational traits like breast angle and shank length at 6 weeks of age. 2ml of blood was collected at 6weeks of age from all the 6 genetic groups (10 birds from each) to estimate the heat stress parameters. Feed efficiency was recorded at 6 weeks and 7 weeks of age. Significant differences were found for SOD, CAT, ALP and GPx between heat stressed and control genetic groups. Higher estimates were found in heat stressed genetic groups as compared to corresponding control groups. For juvenile body weights in stressful conditions there is significant difference between genetic groups. Lower juvenile body weights were recorded in heat stressed genetic groups as compared to control groups. Lower feed efficiency was recorded in heat stressed genetic groups as compared to corresponding control groups.

REFERENCES

  1. Botjee, W.G. and Harrison, P.C.(1985) Effect of carbonated water on growth performance of cockerels subjected to constant and cyclic heat stress parameters.Poultry Science, 64:1285-1292.
  2. Davies, K.J.A. (1995) Oxidative stress: the paradox of aerobic life. Free radicals and oxidative stress: Environment, Drugs and Food Additives, 61:1-31.
  3. Devi, G.S., Prasad, M.H., Saraswathi, I., Raghu, D., Rao, D.N. and Reddy, P.P. (2000) Free radicals, antioxidant enzymes and lipid peroxidation in different types of leukemias. Clinica Chimica Acta, 293:53-62.
  4. Donkoh,A (1989) Ambient temperature: A factor affecting performance and physiological response of broiler chickens. International Journal of Biometeorology,33: 259-265.
  5. Etches, R.J.,John,J.M and Gibbins, A.M.V. (1995) Behavioural, Physiological, neuroendocrine and molecular responses to heat stress in Daghir, NJ(Ed) Poultry Production in Hot Climates.PP 31-65( Walling ford, U.K., CAB International.)
  6. Mates, J.M., Perez-Gomez, C and Nunez De Castro, I. (1990) Antioxidant enzymes in human diseases. Clinical Biochemistry, 32(8): 595-603.
  7. McArdle, A and Jackson., M.J. (2000) Exercise, oxidative stress and ageing. Journal Of Anatomy, 197: 539-541.
  8. Thomas, M.J.(2000) The role of free radicals and antioxidants. Nutrition, 16: 716-18.
  9. Webster,A.J.F and Nicol, C.J (1988).The case for welfare, in cages for future, Cambridge Poultry Conference, ADAS.PP 11-21.
  10. Wolfenson,D.,Feri,Y.F, Snapir,N and Berman,A (1979) Effect of diurnal or nocturnal heat stress on egg formation. British Poultry Science, 20: 167-174.
  11. Yahav,S.,Goldfeld,S.,Plaunik,I and Hurwitz.(1995) Physiological responses of chickens and turkeys to relative humidity during exposure to high ambient temperature. Journal of Thermal Biology. 20:245-253
  12. Young, R.A (1990) Stress proteins and immunology. Annual.Review of Immunology.8:401-420.
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Indian Journal of Animal Research
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    Research Article

    volume 52 issue 1 (january 2018) : 157-159,   Doi: 10.18805/ijar.B-3441

    Effect of heat stress for specific period on juvenile traits, feed efficiency and some heat stress parameters in different genetic groups of broilers
     

    B
    B.L.N. Reddy
    K
    K.S. Rajaravindra
    U
    U. Rajkumar
    M
    M.R. Reddy
    1ICAR-Directorate of Poultry Research, Rajendranagar, Hyderabad-500 030, Telangana, India
    Cite article:- Reddy B.L.N., Rajaravindra K.S., Rajkumar U., Reddy M.R. (2017). Effect of heat stress for specific period on juvenile traits, feed efficiency and some heat stress parameters in different genetic groups of broilers. Indian Journal of Animal Research. 52(1): 157-159. doi: 10.18805/ijar.B-3441.

    ABSTRACT

    To evaluate the effect of heat stress an experiment was conducted in which one cross (PB-1X Naked neck), two pure lines ( PB-1 and Naked neck) and corresponding control populations were generated simultaneously on the same day.120 chicks in PB-1X Naked neck  (Control 120), 91 chicks in Naked neck pure( Control 82) and 81 chicks in PB-1 pure ( Control 80)were generated. Temperatures were raised (up to 40°C) by providing the two halogen lamps in each of the heat stressed genetic groups from 4-6 weeks of age. Body weights were recorded at 0, 2,4, 6 and 7 weeks of age along with conformational traits like breast angle and shank length at 6 weeks of age. 2ml of blood was collected at 6weeks of age from all the 6 genetic groups (10 birds from each) to estimate the heat stress parameters. Feed efficiency was recorded at 6 weeks and 7 weeks of age. Significant differences were found for SOD, CAT, ALP and GPx between heat stressed and control genetic groups. Higher estimates were found in heat stressed genetic groups as compared to corresponding control groups. For juvenile body weights in stressful conditions there is significant difference between genetic groups. Lower juvenile body weights were recorded in heat stressed genetic groups as compared to control groups. Lower feed efficiency was recorded in heat stressed genetic groups as compared to corresponding control groups.

    REFERENCES

    1. Botjee, W.G. and Harrison, P.C.(1985) Effect of carbonated water on growth performance of cockerels subjected to constant and cyclic heat stress parameters.Poultry Science, 64:1285-1292.
    2. Davies, K.J.A. (1995) Oxidative stress: the paradox of aerobic life. Free radicals and oxidative stress: Environment, Drugs and Food Additives, 61:1-31.
    3. Devi, G.S., Prasad, M.H., Saraswathi, I., Raghu, D., Rao, D.N. and Reddy, P.P. (2000) Free radicals, antioxidant enzymes and lipid peroxidation in different types of leukemias. Clinica Chimica Acta, 293:53-62.
    4. Donkoh,A (1989) Ambient temperature: A factor affecting performance and physiological response of broiler chickens. International Journal of Biometeorology,33: 259-265.
    5. Etches, R.J.,John,J.M and Gibbins, A.M.V. (1995) Behavioural, Physiological, neuroendocrine and molecular responses to heat stress in Daghir, NJ(Ed) Poultry Production in Hot Climates.PP 31-65( Walling ford, U.K., CAB International.)
    6. Mates, J.M., Perez-Gomez, C and Nunez De Castro, I. (1990) Antioxidant enzymes in human diseases. Clinical Biochemistry, 32(8): 595-603.
    7. McArdle, A and Jackson., M.J. (2000) Exercise, oxidative stress and ageing. Journal Of Anatomy, 197: 539-541.
    8. Thomas, M.J.(2000) The role of free radicals and antioxidants. Nutrition, 16: 716-18.
    9. Webster,A.J.F and Nicol, C.J (1988).The case for welfare, in cages for future, Cambridge Poultry Conference, ADAS.PP 11-21.
    10. Wolfenson,D.,Feri,Y.F, Snapir,N and Berman,A (1979) Effect of diurnal or nocturnal heat stress on egg formation. British Poultry Science, 20: 167-174.
    11. Yahav,S.,Goldfeld,S.,Plaunik,I and Hurwitz.(1995) Physiological responses of chickens and turkeys to relative humidity during exposure to high ambient temperature. Journal of Thermal Biology. 20:245-253
    12. Young, R.A (1990) Stress proteins and immunology. Annual.Review of Immunology.8:401-420.
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