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Metabolic and endocrine changes induced by chronic heatexposure in broiler chickens : biological and endocrinological variables

Published online by Cambridge University Press:  09 March 2007

P. A. Geraert ,
J. C. F. Padilha  and
S. Guillaumin
P. A. Geraert
Affiliation:
Station de Recherches Avicoles, Institut National de la Recherche Agronomique, 37380 Nouzilly, France
J. C. F. Padilha
Affiliation:
Station de Recherches Avicoles, Institut National de la Recherche Agronomique, 37380 Nouzilly, France
S. Guillaumin
Affiliation:
Station de Recherches Avicoles, Institut National de la Recherche Agronomique, 37380 Nouzilly, France
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Abstract

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Abstract:

The present study was designed to investigate the effect of chronic heat exposure (32° constant) on plasma metabolites and hormone concentrations in broiler chickens. At 2 and 4 weeks of age, fifty-four male Shaver broiler chickens were allocated to one of three treatments: 22° ad lib. feeding (22AL), 32°ad lib. feeding (32AL) and 22°,pair-feeding with the 32AL group (22PF). Ambient temperature was kept constant at either 22 or 32° for 2 weeks. Plasma glucose, triacylglycerols, phospholipids, non-esterified fatty acids (NEFA), individual amino acids, uric acid, insulin, triiodothyronine (T3), thyroxine, corticosterone were determined. Sensitivity to exogenous insulin was also measured at 7 weeks of age. At 4 and 6 weeks of age, i.e. after 2 weeks at high ambient temperature, fasted 32AL chickens displayed similar concentrations of glucose and triacylglycerols to those of 22AL birds. When fed, 32AL chickens exhibited higher plasma levels of glucose and decreased concentrations of NEFAand amino acids. Feed restriction resulted in intermediate values. Concentrations of all plasmafree amino acids were decreased under heat exposure except for aspartic acid, glutamic acid andphenylalanine. At 6 weeks of age, plasma T3 was reduced irrespective of the nutritional state, while plasma corticosterone concentrations were increased in 32AL birds compared with 22AL birds. Heat exposure did not change plasma insulin concentration in either fasted or fed chickens. The 32AL chickens displayed significantly reduced sensitivity to exogenous insulin when fasted,but an enhanced response to insulin when fed, compared with both 22° groups. Such endocrinological changes could stimulate lipid accumulation through increased de novo lipogenesis, reduced lipolysis and enhanced amino acid catabolism under chronic heat exposure.

Keywords

Chronic heat exposureEndocrinological changesPlasma metabolites
Type
Chronic heat exposure in chickens
Information
British Journal of Nutrition , Volume 75 , Issue 2 , February 1996 , pp. 205 - 216
Copyright
Copyright © The Nutrition Society 1996

References

REFERENCES

kin Baziz, H Geraert, P. A. Padilha, J. C. F., Guillaumin, S., Marché, G. & Ricard, F. H. (1993). Does heat exposure modify carcass quality of broilers? In Proceedings of the XIth European Symposium on the Quality of Poultry Meat, vol. 1; pp. 52–58 [Colin, P., Culioli, .J. and Ricard, F. H., editors]. Tours: World's Poultry Science Association, French BranchAoyagiGoogle Scholar
Aoyagi, Y. Tasaki, I. Okumura, J.-I. & Muramatsu, T.(1988).Effect of low ambient temperature on protein turnover and heat production in chicks. Comparative Biochemistry and Physiology 89A, 433–436.CrossRefGoogle Scholar
Balnave, D. (1972). The effect of temperature and length of exposure on liver composition and hepatic lipogenic enzyme activity in the immature male chick (Gallus domesticus). Comparative Biochemistry and Physiology 43B, 999–1007.Google Scholar
Bray, G. A. & York, D. A. (1979).Hypothalamic and genetic obesity in experimental animals:an autonomic and endocrine hypothesis. Physiological Reviews 59, 719–809.CrossRefGoogle ScholarPubMed
Chayoth, R. & Cassuto, Y. (1971 a). Carbohydrate metabolism of heat-acclimated hamsters. I. Control glycogenesis in the liver. American Journal of Physiology 220, 1067–1070.CrossRefGoogle ScholarPubMed
Chayoth, R. & Cassuto, Y. (1971 b).Carbohydrate metabolism of heat-acclimated hamsters. II. Regulatory mechanisms of the intact animal. American Journal of Physiology 220, 1071–1073.CrossRefGoogle ScholarPubMed
Chayoth, R., Nakhooda, A. F., Poussier, P. & Marliss, E. B. (1984).Glucoregulatory and metabolic responses to heat exposure in rats. American Journal of Physiology 246, E465–E470.Google ScholarPubMed
Christon, R. (1988). The effect of tropical ambient temperature on growth and metabolism in pigs. Journal of Animal Science 66, 3112–3123.CrossRefGoogle ScholarPubMed
Christon, R., LeDividich, J., Sew, B. & Aumaitre, A. (1984). Influence de la temperature ambiante Sur I'utilisation metabolique de I'énergie et de I'azote alimentaires chez le rat en croissance (Influence of ambient temperature on metabolic utilization of dietary energy and protein in the growing rat). Reproduction, Nutrition,Développernent 24, 327–341.CrossRefGoogle Scholar
Decuypere, E. & Buyse, J. (1988). Thyroid hormones, corticosterone, growth hormone and somatomedins in avian species: general effects and possible implications in fattening. In Leanness in Domestic Birds, pp. 295–312,[Leclercq, B. and Whitehead, C. C., editors]. London: Buttenvorths and INRA Publications.CrossRefGoogle Scholar
Edens, F. W. (1978). Adrenal cortical insufficiency in young chickens exposed to a high ambient temperature. Poultry Science 57, 1746–1750.CrossRefGoogle ScholarPubMed
El Hadi, H. M. & Sykes, A. H.(1980). Heat acclimatization and blood acid-base balance in the laying hen. Archiv fur GeJugelkunde 44, 264–266.Google Scholar
Etches, R. J. (1976).A radioimmunoassay for corticosterone and its application to the measurement of stress in poultry. Steroids 28, 763–773.CrossRefGoogle Scholar
Fossati, P. & Prencipe, L. (1982). Serum triglycerides determined colorimetrically with an enzyme that produces hydrogen peroxide. Clinical Chemistry 28, 2077–2080.CrossRefGoogle ScholarPubMed
Fossati, P., Prencipe, L. & Berti, G. (1980). Use of 3,5-dichloro-2-hydroxybenzenesulfonic acid/4-amino-phenazone chromogenic system in direct enzymic assay of uric acid in serum and urine. Clinical Chemistry 26, 227–231CrossRefGoogle Scholar
Geraert, P. A., Guillaumin, S. &Zuprizal, (1992).Effect of high ambient temperature on dietary ME value in genetically lean and fat chickens. Poultry Science 71, 2113–2116.CrossRefGoogle ScholarPubMed
Geraert, P. A., Leclercq, B. & Larbier, M. (1987). Effects of dietary glucogenic amino acidsupplementation on growth performance, body composition and plasma free amino acid levels in genetically lean and fat chickens. Reproduction, Nutrition, Developpement 21, 1041–1051.CrossRefGoogle Scholar
Geraert, P. A., Padilha, J. C. F. & Guillaumin, S. (1993). Metabolic and endocrine changes induced by heat exposure in chickens. Proceedings of the Nutrition Society 52, 165A.Google Scholar
Geraert, P. A., Padilha, J. C. F. & Guillaumin, S.(1996). Metabolic and endocrine changes induced by chronic heat exposure in broiler chickens : growth performance, body composition and energy retention. British Journal of Nutrition 75, 195–204.Google ScholarPubMed
Hermier, D., Chapman, M. J. & Leclercq, B. (1984). Plasma lipoprotein profile in fasted and refed chickens of two strains selected for high or low adiposity. Journal of Nutrition 114, 1112–1121.CrossRefGoogle ScholarPubMed
Herremans, M., Buyse, J., Leenstra, F. R., Beuving, G., Berghman, L. & Decuypere, E. (1992). Growth hormone response to TRH in male broiler chickens selected for body weight gain or food conversion and reared at either a moderate or a high ambient temperature. Reproduction, Nutrition, Développement 32, 135–141.CrossRefGoogle ScholarPubMed
Keshavarz, K. & Fuller, H. L. (1980). The influence of widely fluctuating temperatures on heat production and energetic efficiency of broilers. Poultry Science 59, 2121–2128.CrossRefGoogle ScholarPubMed
Klandorf, H., Sharp, P. J. & MacLeod, M. G. (1981). The relationship between heat production and concentrations of plasma thyroid hormones in the domestic hen. General Comparative Endocrinology 45, 513–522.CrossRefGoogle ScholarPubMed
Leclercq, B., Guy, G. & Rudeaux, F. (1988). Thyroid hormones in genetically lean or fat chickens: effects of age and triiodothyronine supplementation. Reproduction, Nutrition, Développement 28, 931–937.CrossRefGoogle ScholarPubMed
Leclercq, B., Hermier, D. & Salichon, M. R. (1984). Effects of age and diet on plasma lipidand glucose concentrations in genetically lean or fat chickens. Reproduction, Nutrition, Développement 24, 53–61.CrossRefGoogle ScholarPubMed
McNaughton, J. L., May, J. D., Reece, F. N. & Deaton, J. W. (1978). Lysine requirement of broiler as influenced by environmental temperatures. Poultry Science 57, 57–65.CrossRefGoogle ScholarPubMed
May, J. D. (1989). The role of the thyroid in avian species. Critical Reviews in Poultry Biology 2, 171–186.Google Scholar
Mitchell, M. & Goddard, C.(1990). Some endocrine responses during heat stress induced depression of growth in young domestic fowls. Proceedings of the Nutrition Society 49, 129A.Google Scholar
Mitchell, M. & Carlisle, A. J. (1992). The effects of chronic exposure to elevated environmental temperature on intestinal morphology and nutrient absorption in the domestic fowl (Gallusdomesticus). Comparative Biochemistry and Physiology 101A, 137–142.CrossRefGoogle Scholar
Moss, B. & Balnave, D. (1978). The iniluence of elevated environmental temperature and nutrient intake on thyroid status and hepatic enzyme activities in immature male chicks. Comparative Biochemistry and Physiology, 60B,157–161Google Scholar
Okabe, H. Uji, Y., Nagashima, K.& Noma, A. (1980). Enzymatic determination of free fatty acids in serum. Clinicai Chemistry 26, 1540–1543.CrossRefGoogle Scholar
Rinaldo, D. & Le Dividich, J. (1991).Effects of warm exposure on adipose tissue and muscle metabolism in growing pigs. Comparative Biochemistry and Physiology 100A, 995–1002.CrossRefGoogle Scholar
Rudas, P. & Pethes, G. (1984). The importance of the peripheral thyroid hormone deiodination in adaptation to ambient temperature in the chicken (Gallus domesticus). Comparative Biochemistry and Physiology 71A,567–574CrossRefGoogle Scholar
Sinurat, A. P., Balnave, D. & McDowell, G. H. (1987). Growth performance and concentrations of thyroid hormones and growth hormone in plasma of broilers at high temperatures. Australian Journal of Biological Science 40, 443–450.CrossRefGoogle ScholarPubMed
Takayama, M., Itoh, S., Nagasaki, T. & Tanimizu, I. (1977). A new enzymatic method for determination of serum choline-containing phospholipids. Clinica Chimica Acta 19, 1350–1355.Google Scholar
Taouis, M., Derouet, M., Chevalier, B. & Simon, J. (1993). Corticosterone effect on insulinreceptor number and kinase activity in chicken muscle and liver. General and Comparative Endocrinology 89, 167–175.CrossRefGoogle Scholar
Wallis, I. R. & Balnave, D. (1984). The influence of environmental temperature, age and sexon the digestibility of amino acids in growing broiler chickens.British Poultry Science 25, 401–407.CrossRefGoogle Scholar
Wolfenson, D., Frei, Y. F., Snapir, N. & Berman, A. (1981). Heat stress effects on capillary blood flow and its redistribution in the laying hen. PJugers Archiv 390, 86–92.CrossRefGoogle ScholarPubMed
Zuprizal, Larbier, M., Chagneau, A. M. & Geraert, P. A. (1993). Influence of ambient temperature on true digestibility of protein and amino acids of rapeseed and soybean meals in broilers. poultry Science 72, 289–295.CrossRefGoogle Scholar