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Heat stress and feeding strategies in meat-type chickens

Published online by Cambridge University Press:  18 November 2011

S. SYAFWAN*
Affiliation:
Faculty of Animal Husbandry, University of Jambi, Jambi, Indonesia, 36361 Animal Nutrition Group, Department of Animal Sciences, Wageningen University, Wageningen, The Netherlands
R.P. KWAKKEL
Affiliation:
Animal Nutrition Group, Department of Animal Sciences, Wageningen University, Wageningen, The Netherlands
M.W.A. VERSTEGEN
Affiliation:
Animal Nutrition Group, Department of Animal Sciences, Wageningen University, Wageningen, The Netherlands
*
Corresponding author: wan.syafwan@wur.nl
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Abstract

Heat stress can induce hyperthermia in poultry. A reduction in heat load can be achieved by increasing the possibilities for dissipation, decreasing the level of heat production or by changing the thermal production pattern within a day. Strategies to reduce the negative effects of heat stress can be based on a specific feeding strategy, such as restricted feeding. Feed that is offered long enough before a hot period can ameliorate the harmful effects of high temperature. Another strategy may be to use choice feeding from different feed ingredients, rich in protein or in energy. With such self-selection, the chicken may adjust its intake of individual components, allowing the bird to optimise the heat load associated with the metabolism of the ingested nutrients. Additional promising strategies involve offering a choice between feeds with a different feed particle size or structure. A large particle size contributes to the development of the gastro-intestinal tract (GIT), especially the gizzard and the caeca. A large gizzard will maximize the grinding process and potentially ease digestion down the GIT, thereby reducing heat production associated with digestive processing. Also wet feeding may be profitable under heat stress conditions as well. Feeding wet diets may facilitate an increased water intake and larger particle sizes can limit water excretion in droppings, resulting in more water being available for evaporation during panting, hence cooling the bird. In conclusion, these feeding strategies may help to reduce heat production peaks, facilitate evaporative activity and/or decreases the heat load, resulting in beneficial effects on performance and health of the bird kept in more tropical areas worldwide.

Type
Review Article
Copyright
Copyright © World's Poultry Science Association 2011

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References

AFSHARMANESH, M., BARANI, M. and SILVERSIDES, F.G. (2010) Evaluation of wet-feeding wheat-based diets containing Saccharomyces cerevisiae to broiler chickens. British poultry science 51: 776-783.CrossRefGoogle ScholarPubMed
AHMAD, T., SARWAR. M., MAHR-UN-NISA and AHSAN-UL-HAQ, ZIA-UL-HASAN (2005) Influence of varying sources of dietary electrolytes on the performance of broilers reared in a high temperature environment Animal feed science and technology 20: 277-298.CrossRefGoogle Scholar
AHMAD, T. and SARWAR, M. (2006) Dieatry electrolyte balance: implications in heat stressed broiler. World's Poultry Science Journal 62: 638-653.Google Scholar
AIT-TAHAR, N. and PICARD, M. (1987) Influence of ambient temperature on protein requirements of broilers. Research Note, INRA Laboratoire de Recherches Avicoles, Nouzilly, France, pp. 1-12.Google Scholar
AL-MURRANI, W.K., AL-RAWI, A.J., AL-HADITHI, M.F. and AL-TIKRITI, B. (2006) Association between heterophil/lymphocyte ratio, a marker of 'resistance' to stress, and some production and fitness traits in chickens. British Poultry Science 47: 443-448.CrossRefGoogle ScholarPubMed
ALLEMAN, F. and LECLERCQ, B. (1997) Effect of dietary protein and environmental temperature on growth performance and water consumption of male broiler chickens. British Poultry Science 38: 607-610.CrossRefGoogle ScholarPubMed
AMERAH, A.M., LENTLE, R.G. and RAVINDRAN, V. (2007) Influence of feed form on gizzard morphology and particle size spectra of duodenal digesta in broiler chickens. Journal of Poultry Science 44: 175-181.CrossRefGoogle Scholar
AMERAH, A.M. and RAVINDRAN, V. (2008) Influence of method of whole-wheat feeding on the performance, digestive tract development and carcass traits of broiler chickens. Animal Feed Sciece and Technology 147: 326-339.CrossRefGoogle Scholar
ANDERSSON, M., NORDIN, E. and JENSEN, P. (2001) Domestication effects on foraging strategies in fowl. Applied Animal Behaviour Science 72: 51-62.CrossRefGoogle ScholarPubMed
AWOJOBI, H.A. and MESHIOYE, O.O. (2001) A comparison of wet mash and dry mash feeding for broiler finisher during wet season in the tropics. Nigerian Journal of Animal Production 28: 143-146.Google Scholar
AWOJOBI, H.A., OLUWOLE, B.O., ADEKUNMISI, A.A. and BURAIMO, R.A. (2009) Performance of finisher broilers fed wet mash with or without drinking water during wet season in the tropics. International Journal of Poultry Science 8: 592-594.Google Scholar
BALNAVE, D. and MUTISARI ABDOELLAH, T.M. (1990) Self-select feeding of commercial pullets using a complete layer diet and a separate protein concentrate at cool and hot temperature. Australian Journal of Agricultural Research 41: 549-555.CrossRefGoogle Scholar
BALNAVE, D. and BRAKE, J. (2005) Nutrition and management of heat-stressed pullets and laying hens. World's Poultry Science Journal 61: 399-406.CrossRefGoogle Scholar
BANFIELD, M.J., KWAKKEL, R.P. and FORBES, J.M. (2002) Effects of wheat structure and viscosity on coccidiosis in broiler chickens. Animal Feed Science and Technology 98: 37-48.CrossRefGoogle Scholar
BELAY, T. and TEETER, R. (1993) Broiler water balance and thermobalance during thermoneutral and high ambient temperature exposure. Poultry Science 72: 116-124.CrossRefGoogle Scholar
BLACK, J.L. (1995) Modelling energy metabolism in the pig - critical evaluation of a simple reference model, in: MOUGHAN, P.J., VERSTEGEN, M.W.A. & VISSER-REYNEVELD, M. (Eds) Modelling Growth in the Pig, Vol. pp. 87-102 (Wageningen Pers, Wageningen, The Netherlands).Google Scholar
BONNET, S., GERAERT, P.A., LESSIRE, M., CARRE, B. and GUILLAUMIN, S. (1997) Effect of high ambient temperature on feed digestibility in broilers. Poultry Science 76: 857-863.CrossRefGoogle ScholarPubMed
BORGES, S.A., FISCHER DA SILVA, A.V. and MAIORKA, A. (2007) Acid-base balance in broilers. World's Poultry Science Journal 63: 73-81.CrossRefGoogle Scholar
BRAKE, J., BALNAVE, D. and DIBNER, J.J. (1998) Optimum dietary arginine:lysine ratio for broiler chickens is altered during heat stress in association with changes in intestinal uptake and dietary sodium chloride. British Poultry Science 39: 639-647.CrossRefGoogle ScholarPubMed
BROWN-BRANDL, T.M., BECK, M.M., SCHULTE, D.D., PARKHURST, A.M. and DESHAZER, J.A. (1997) Physiological responses of tom turkeys to temperature and humidity change with age. Journal of Thermal Biology 22: 43-52.CrossRefGoogle Scholar
BUYS, N., SCHEELE, C.W., KWAKERNAAK, C., VAN DER KLIS, J.D. and DECUYPERE, E. (1999) Performance and physiological variables in broiler chicken lines differing in susceptibility to the ascites syndrome: 1. Changes in blood gases as a function of ambient temperature. British Poultry Science 40: 135-139.CrossRefGoogle ScholarPubMed
CAHANER, A. and LEENSTRA, F. (1992) Effects of high temperature on growth and efficiency of male and female broilers from lines selected for high weight gain, favorable food conversion and high or low fat content. Poultry Science 71: 1237-1250.CrossRefGoogle ScholarPubMed
CARRÉ, B., IDI, A., MAISONNIER, S., MELCION, J.P., OURY, F.X., GOMEZ, J. and PLUCHARD, P. (2002) Relationships between digestibilities of food components and characteristics of wheats ( Triticum aestivum ) introduced as the only cereal source in a broiler chicken diet. British poultry science 43: 404-415.CrossRefGoogle Scholar
CHEN, J., HAYAT, J., HUANG, B., BALNAVE, D. and BRAKE, J. (2003) Responses of broilers at moderate or high temperatures to dietary arginine:lysine ratio and source of supplemental methionine activity. Australian Journal of Agricultural Research 54: 177-181.Google Scholar
CHENG, T.K., HAMRE, M.L. and COON, C.N. (1997) Effect of environmental temperature, dietary protein, and energy levels on broiler performance. Journal of Applied Poultry Research 6: 1-17.CrossRefGoogle Scholar
CHENG, T.K., HAMRE, M.L. and COON, C.N. (1999) Effect of constant and cyclic environmental temperatures, dietary protein, and amino acid levels on broiler performance. Journal of Applied Poultry Research 8: 426-439.CrossRefGoogle Scholar
CORZO, A., MORAN, E.T. and HOEHLER, D. (2003) Lysine needs of summer-reared male broilers from six to eight weeks of age. Poultry Science 82: 1602-1607.CrossRefGoogle ScholarPubMed
CRUZ, V.C., PEZZATO, A.C., PINHEIRO, D.F., GONCALVES, J.C. and SARTORI, J.R. (2005) Effect of free-choice feeding on the performance and ileal digestibility of nutrients in broilers. Revista Brasileira de Ciência Avícola 7: 143-150.CrossRefGoogle Scholar
DAGHIR, N.J. (2008a) Broiler feeding and Management in Hot Climates, in: DAGHIR, N.J. (Ed.) Poultry Production in Hot Climate, Vol. pp. 227-260 (CAB International, Cromwell Press, Trowbridge).Google Scholar
DAGHIR, N.J. (2008b) Nutrient requirements of poultry at high temperature, in: DAGHIR, N.J. (Ed.) Poultry Production in Hot Climate, Vol. pp. 133-160 (CAB International, Cromwell Press, Trowbridge).Google Scholar
DAWSON, W.R. and WHITTOW, G.C. (2000) Regulation of Body Temperature, in: WHITTOW, G.C. (Ed.) Sturkie's Avian Physiology, Vol. pp. 343-390 (Academic Press, San Diego).Google Scholar
DE BASILIO, V., VILARINO, M., YAHAV, S. and PICARD, M. (2001) Early age thermal conditioning and a dual feeding program for male broilers challenged by heat stress. Poultry Science 80: 29-36.CrossRefGoogle Scholar
DE BASILIO, V., REQUENA, F., LEON, A., VILARINO, M. and PICARD, M. (2003) Early age thermal conditioning immediately reduces body temperature of broiler chicks in a tropical environment. Poultry Science 82: 1235-1241.CrossRefGoogle Scholar
ETCHES, R.J., JOHN, T.M. and VERRINDER, G.A.M. (2008) Behavioral, physiological, neuroendocrine and molecular responses to heat stress, in: DAGHIR, N.J. (Ed.) Poultry Production in Hot Climates, Vol. pp. 49-80 (CAB International, Cromwell Press, Trowbridge).Google Scholar
FIRMAN, J.D. and BOLING, S.D. (1998) Lysine: Ideal protein in turkeys. Poultry Science 77: 105-110.CrossRefGoogle ScholarPubMed
FORBES, J.M. and SHARIATMADARI, F. (1994) Diet selection for protein by poultry. World's Poultry Science Journal 50: 7-24.CrossRefGoogle Scholar
GABRIEL, I., MALLET, S., LECONTE, M., FORT, G. and NACIRI, M. (2003) Effects of whole wheat feeding on the development of coccidial infection in broiler chickens. Poultry Science 82: 1668-1676.CrossRefGoogle ScholarPubMed
GARRIGA, C., HUNTER, R.R., AMAT, C., PLANAS, J.M., MITCHELL, M.A. and MORETO, M. (2006) Heat stress increases apical glucose transport in the chicken jejunum. American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 290: R195-201.CrossRefGoogle ScholarPubMed
GHAZALAH, A.A., ABD-ELSAMEE, M.O. and ALI, A.M. (2008) Influence of dietary energy and poultry fat on the response of broiler chicks to heat therm. International Journal of Poultry Science 7: 355-359.Google Scholar
GONZALEZ-ESQUERRA, R. and LEESON, S. (2005) Effects of acute versus chronic heat stress on broiler response to dietary protein. Poultry Science 84: 1562-1569.CrossRefGoogle ScholarPubMed
GOUS, R.M. and MORRIS, T.R. (2005) Nutritional interventions in alleviating the effects of high temperatures in broiler production. World's Poultry Science Journal 61: 463-475.CrossRefGoogle Scholar
GOWE, R.S. and FAIRFULL, R.W. (2008) Breeding for resistance to heat stress, in: DAGHIR, N.J. (Ed.) Poultry Production in Hot Climates Vol. pp. 13-29 (CAB International, Cromwell Press, Trowbridge).Google Scholar
GROSS, W.B. and SIEGEL, H.S. (1983) Evaluation of the heterophil/lymphocyte ratio as a measure of stress in chickens. Avian Diseases 27: 972-979.CrossRefGoogle ScholarPubMed
HAVENSTEIN, G.B., FERKET, P.R. and QURESHI, M.A. (2003) Growth, livability, and feed conversion of 1957 versus 2001 broilers when fed representative 1957 and 2001 broiler diets. Poultry Science 82: 1500-1508.CrossRefGoogle ScholarPubMed
HETLAND, H., CHOCT, M. and SVIHUS, B. (2004) Role of insoluble non-starch polysaccharides in poultry nutrition. World's Poultry Science Journal 60: 415-422.CrossRefGoogle Scholar
HILMAN, P.E., SCOTT, N.R. and VAN TIENHOVE, A. (1985) Physiological responses and adaptations to hot and cold environments, in: YOUSEF, M.K. (Ed.) Stress physiology in livestock, Vol. III, pp. 1-72 (CRC Press, Inc., Boca Raton, Florida).Google Scholar
HUGHES, B.O. (1984) The principles underlying choice feeding behavior in fowls with special reference to production experiments. World's Poultry Science Journal 40: 141-150.CrossRefGoogle Scholar
KHOA, M.A. (2007) Wet and coarse diets in broiler nutrition: Development of the GI tract and performance. PhD Thesis. Waningen University and Research Centre, Wageningen.Google Scholar
KOH, K. and MACLEOD, M.G. (1999a) Circadian variation in heat production and respiratory quotient in growing broilers maintained at different food intakes and ambient temperatures. British Poultry Science 40: 353-356.CrossRefGoogle ScholarPubMed
KOH, K. and MACLEOD, M.G. (1999b) Effects of ambient temperature on heat increment of feeding and energy retention in growing broilers maintained at different food intakes. British Poultry Science 40: 511-516.CrossRefGoogle ScholarPubMed
KUTLU, H.R. (2001) Influences of wet feeding and supplementation with ascorbic acid on performance and carcass composition of broiler chicks exposed to a high ambient temperature. Archiv für Tierernaehrung 54: 127-139.CrossRefGoogle ScholarPubMed
KWAKKEL, R.P., VAN DER POEL, A.F.B and WILLIAM, B.A. (1997) Gut motility as affected by diets differing in particle size distribution: impact on bird health and feed processing. Proceedings of the 16th Scientific Day of the Southern African Branch of the WPSA, University of Pretoria, South Africa, pp. 80-84.Google Scholar
LEVIN, R.J. (1994) Digestion and absorption of carbohydrates - From molecules and membranes to humans. American Journal of Clinical Nutrition 59: 690S.CrossRefGoogle Scholar
LIN, H., JIAO, H.C., BUYSE, J. and DECUYPERE, E. (2006) Strategies for preventing heat stress in poultry. World's Poultry Science Journal 62: 71-86.CrossRefGoogle Scholar
LOTT, B.D. (1991) The effect of feed intake on body temperature and water consumption of male broilers during heat exposure. Poultry Science 70: 756-759.CrossRefGoogle ScholarPubMed
LOZANO, C., DE BASILIO, V., OLIVEROS, I., ALVAREZ, R., COLINA, I., BASTIANELLI, D., YAHAV, S. and PICARD, M. (2006) Is sequential feeding a suitable technique to compensate for the negative effects of a tropical climate in finishing broilers? Animal Research 55: 71-76.CrossRefGoogle Scholar
MACLEOD, M.G. (1997) Effects of amino acid balance and energy:protein ratio on energy and nitrogen metabolism in male broiler chickens. British Poultry Science 38: 405-411.CrossRefGoogle ScholarPubMed
MACLEOD, M.G. and DABUTHA, L.A. (1997) Diet selection by Japanese quail (Coturnix coturnix japonica) in relation to ambient temperature and metabolic rate. British Poultry Science 38: 586-589.CrossRefGoogle ScholarPubMed
MACLEOD, M.G., SAVORY, C.J., MCCORQUODALE, C.C. and BOYD, A. (1993) Effects of long-term food restriction on energy expenditure and thermoregulation in broiler-breeder fowls (Gallus domesticus). Comparative Biochemistry and Physiology Part A: Physiology 106: 221-225.CrossRefGoogle Scholar
MARDER, J. and ARAD, Z. (1989) Panting and acid-base regulation in heat stressed birds. Comparative Biochemistry and Physiology Part A: Physiology 94: 395-400.CrossRefGoogle ScholarPubMed
MAY, J.D. and LOTT, B.D. (1992) Feed and water consumption patterns of broilers at high environmental temperatures. Poultry Science 71: 331-336.CrossRefGoogle ScholarPubMed
MAY, J.D., LOTT, B.D. and SIMMONS, J.D. (1997) Water consumption by broilers in high cyclic temperatures: bell versus nipple waterers. Poultry Science 76: 944-947.CrossRefGoogle ScholarPubMed
MCNABB, F.M.A. (2007) The Hypothalamic-Pituitary-Thyroid (HPT) Axis in Birds and Its Role in Bird Development and Reproduction. Critical Reviews in Toxicology 37: 163-193.CrossRefGoogle ScholarPubMed
MCNAUGHTON, J.L. and REECE, F.N. (1984) Response of broiler chickens to dietary energy and lysine levels in a warm environmnet. Poultry Science 63: 1170-1174.CrossRefGoogle Scholar
MCNEILL, L., BERNARD, K. and MACLEOD, M.G. (2004) Food intake, growth rate, food conversion and food choice in broilers fed on diets high in rapeseed meal and pea meal, with observations on sensory evaluation of the resulting poultry meat. British Poultry Science 45: 519-523.CrossRefGoogle ScholarPubMed
MENDES, A.A., WATKINS, S.E., ENGLAND, J.A., SALEH, E.A., WALDROUP, A.L. and WALDROUP, P.W. (1997) Influence of dietary lysine levels and arginine:lysine ratios on performance of broilers exposed to heat or cold stress during the period of three to six weeks of age. Poultry Sciece 76: 472-481.CrossRefGoogle ScholarPubMed
MITCHELL, M.A. and CARLISLE, A.J. (1992) The effects of chronic exposure to elevated environmental temperature on intestinal morphology and nutrient absorption in the domestic fowl (Gallus domesticus). Comparative Biochemistry and Physiology Part A: Physiology 101: 137-142.CrossRefGoogle Scholar
MORITZ, J.S., BEYER, R.S., WILSON, K.J. and CRAMER, K.R. (2001) Effect of moisture addition at the mixer to a corn-soybean-based diet on broiler performance. Journal of Applied Poultry Research 10: 347-353.CrossRefGoogle Scholar
MOUGHAN, J.P. (1999) Protein metabolism in the growing pig, in: KYRIAZAKIS, I. (Ed.) A Quantitative Biology of the Pig, Vol. pp. 299-332 (CAB International, Wellingford, UK).Google Scholar
MOUGHAN, J.P. and FULLER, M.F. (2003) Modelling amino acid metabolism and the estimation of amino acid requirements, in: D'MELLO, J.P.F. (Ed.) Amino Acid in Animal Nutrition, Vol. pp. 187-202 (CAB International, Wellingford, UK).Google Scholar
MOUNT, L.E. (1979) Adaptation to thermal environment: Man and his productive animals. Edward Arnold Limited, Thomson Litho Ltd, East Kilbride, Scotland.Google Scholar
MUSHARAF, N.A. and LATSHAW, J.D. (1999) Heat increment as affected by protein and amino acid nutrition. World's Poultry Science Journal 55: 233-240.CrossRefGoogle Scholar
NORTH, M.O. and BELL, D.D. (1990) Commercial chicken production manual. 4 ed. Chapman & Hall, New York.Google Scholar
NRC, (1994) Nutrient requirements of poultry. 9 ed. National Research Council.Google Scholar
OPHIR, E., ARIELI, Y., MARDER, J. and HOROWITZ, M. (2002) Cutaneous blood flow in the pigeon Columba livia: Its possible relevance to cutaneous water evaporation. The journal of experimental biology 205: 2627-2636.Google ScholarPubMed
ÖZKAN, S., AKBAŞ, Y., ALTAN, , Ö., , ALTAN, A., AYHAN, V. and ÖZKAN, K. (2003) The effect of short-term fasting on performance traits and rectal temperature of broilers during the summer season. British poultry science 44: 88-95.CrossRefGoogle ScholarPubMed
PLAVNIK, I. and YAHAV, S. (1998) Research notes: Effect of environmental temperature on broiler chickens subjected to growth restriction at an early age. Poultry Sciece 77: 870-872.CrossRefGoogle ScholarPubMed
PLAVNIK, I., MACOVSKY, B. and SKLAN, D. (2002) Effect of feeding whole wheat on performance of broiler chickens. Animal Feed Science and Technology 96: 229-236.CrossRefGoogle Scholar
PUVADOLPIROD, S. and THAXTON, J.P. (2000a) Model of physiological stress in chickens 1. Response parameters. Poultry Science 79: 363-369.CrossRefGoogle ScholarPubMed
PUVADOLPIROD, S. and THAXTON, J.P. (2000b) Model of physiological stress in chickens 4. Digestion and metabolism. Poultry Science 79: 383-390.CrossRefGoogle ScholarPubMed
RICHARDS, M.P. and PROSZKOWIEC-WEGLARZ, M. (2007) Mechanisms regulating feed intake, energy expenditure, and body weight in poultry. Poultry Science 86: 1478-1490.CrossRefGoogle ScholarPubMed
ROSE, S.P., FIELDEN, M., FOOTE, W.R. and GARDIN, P. (1995) Sequential feeding of whole wheat to growing broiler chickens. British Poultry Science 36: 97-111.CrossRefGoogle ScholarPubMed
SAKOMURA, N.K., LONGO, F.A., OVIEDO-RONDON, E.O., BOA-VIAGEM, C. and FERRAUDO, A. (2005) Modeling energy utilization and growth parameter description for broiler chickens. Poultry Science 84: 1363-1369.CrossRefGoogle ScholarPubMed
SHARIATMADARI, F. and FORBES, J.M. (2005) Performance of broiler chickens given whey in the food and/or drinking water. British Poultry Science 46: 498-505.CrossRefGoogle ScholarPubMed
SINURAT, A.P. and BALNAVE, D. (1986) Free-choice feeding of broilers at high temperatures. British Poultry Science 27: 577-584.CrossRefGoogle ScholarPubMed
TABIRI, H.Y., SATO, K., TAKAHASHI, K., TOYOMIZU, M. and AKIBA, Y. (2000) Effect of acute heat stress on plasama amino acids concentration of broiler chickens. Japan Poultry Science 37: 86-94.CrossRefGoogle Scholar
UNI, Z., GAL-GARBER, O., GEYRA, A., SKLAN, D. and YAHAV, S. (2001) Changes in growth and function of chick small intestine epithelium due to early thermal conditioning. Poultry Science 80: 438-445.CrossRefGoogle ScholarPubMed
VELDKAMP, T., KWAKKEL, R.P., FERKET, P.R., NIXEY, C. and NOORDHUIZEN, J.P. (2000) Interaction between ambient temperature and supplementation of synthetic amino acids on performance and carcass parameters in commercial male turkeys. Poultry Science 79: 1472-1477.CrossRefGoogle ScholarPubMed
VELDKAMP, T., KWAKKEL, R.P., FERKET, P.R. and VERSTEGEN, M.W.A. (2002) Impact of ambient temperature and age on dietary lysine and energy in turkey production. World's Poultry Science Journal 58: 475-491.CrossRefGoogle Scholar
WAIBEL, P.E. and MACLEOD, M.G. (1995) Effect of cycling temperature on growth, energy metabolism and nutrient retention of individual male turkeys. British Poultry Science 36: 39-49.CrossRefGoogle ScholarPubMed
WIERNUSZ, C.J. (1998) Nutritional therapies to optimize poultry production during high humidity and ambient temperature exposure. Pages 1-6. Technical News, Quarterly Publication of Cobb-Vantress, Incorporated, ArkansasGoogle Scholar
YAHAV, S. (2000) Relative humidity at moderate ambient temperatures: its effect on male broiler chickens and turkeys. British Poultry Science 41: 94-100.CrossRefGoogle ScholarPubMed
YAHAV, S. and MCMURTRY, J.P. (2001) Thermotolerance acquisition in broiler chickens by temperature conditioning early in life-the effect of timing and ambient temperature. Poultry Science 80: 1662-1666.CrossRefGoogle ScholarPubMed
YAHAV, S., STRASCHNOW, A., LUGER, D., SHINDER, D., TANNY, J. and COHEN, S. (2004) Ventilation, sensible heat loss, broiler energy, and water balance under harsh environmental conditions. Poultry Science 83: 253-258.CrossRefGoogle ScholarPubMed
YAHAV, S., SHINDER, D., TANNY, J. and COHEN, S. (2005) Sensible heat loss: the broilers paradox. World's Poultry Science Journal 61: 419-434.CrossRefGoogle Scholar
YAHAV, S. (2009) Alleviating heat stress in domestic fowl: different strategies. World's Poultry Science Journal 65: 719-732.CrossRefGoogle Scholar
YALCIN, S., SETTAR, P., OZKAN, S. and CAHANER, A. (1997) Comparative evaluation of three commercial broiler stocks in hot versus temperate climates. Poultry Science 76: 921-929.CrossRefGoogle ScholarPubMed
YALCIN, S., OZKAN, S., TURKMUT, L. and SIEGEL, P.B. (2001) Responses to heat stress in commercial and local broiler stocks. 1. Performance traits. British Poultry Science 42: 149-152.CrossRefGoogle ScholarPubMed
YALCIN, S., OZKAN, S., CABUK, M. and SIEGEL, P.B. (2003) Criteria for evaluating husbandry practices to alleviate heat stress in broilers. Journal of Applied Poultry Research 12: 382-388.CrossRefGoogle Scholar
YASAR, S. and FORBES, J.M. (2000) Enzyme supplementation of dry and wet wheat-based feeds for broiler chickens: performance and gut responses. British Journal of Nutrition 84: 297-307.CrossRefGoogle ScholarPubMed
YO, T., SIEGEL, P.B., GUERIN, H. and PICARD, M. (1997) Self-selection of dietary protein and energy by broilers grown under a tropical climate: effect of feed particle size on the feed choice. Poultry Science 76: 1467-1473.CrossRefGoogle Scholar
YO, T., SIEGEL, P.B., FAURE, J.M. and PICARD, M. (1998) Self-selection of dietary protein and energy by broilers grown under a tropical climate: adaptation when exposed to choice feeding at different ages. Poultry Science 77: 502-508.CrossRefGoogle Scholar
ZARATE, A.J., JrMORAN, E.T. and BURNHAM, D.J. (2003a) Exceeding essential amino acid requirements and improving their balance as a means to minimize heat stress in broilers. Journal of Applied Poultry Research 12: 37-44.CrossRefGoogle Scholar
ZARATE, A.J., JrMORAN, E.T. and BURNHAM, D.J. (2003b) Reducing crude protein and increasing limiting essential amino acid levels with summer-reared, slow-and fast-feathering broilers. Journal of Applied Poultry Research 12: 160-168.CrossRefGoogle Scholar
ZUIDHOF, M.J., PISHNAMAZI, , OUELLETTE, C.A., KORVER, D.R. and RENEMA, R.A. (2010) Broiler nutrition: Optimizing genotype x environment interactions. Proceedings of the Eastern Nutrition Conference, Guelph, pp. 13.Google Scholar

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