Acid-base balance in broilers

High ambient temperature could result in numerous physiological and metabolic changes in broilers, that adversely impact broiler performance and immune response. In addition to environmental control techniques that have been frequently used to reduce the negative impact of heat stress on birds' performance, other measures have been studied. Lately, proper nutritional management has shown to be effect as a preventive measure against heat stress because the function of the thermoregulating system of broilers (heat production, evaporative and nonevaporative routes for heat dissipation) can be influenced by diet. This applies particularly to the establishment of proper electrolyte balances due to their physiological importance in the heat stress mechanism. Thus, nutritional mechanisms should be reassessed as a tool to control this metabolic dysfunction in birds.

[1]  R. Teeter,et al.  Broiler Water Balance and Thermobalance During Thermoneutral and High Ambient Temperature Exposure , 1993 .

[2]  F. N. Reece,et al.  Use of ammonium chloride and sodium bicarbonate in acute heat exposure of broilers. , 1986, Poultry science.

[3]  S. Bornstein,et al.  Sodium and chloride requirements of the chick: relationship to acid-base balance. , 1973, Poultry science.

[4]  F. Edens,et al.  Potassium chloride improves the thermotolerance of chickens exposed to acute heat stress. , 1995, Poultry science.

[5]  B. March.  Sodium chloride supplementation of all plant protein broiler diets. , 1984, Poultry science.

[6]  D. Balnave,et al.  Effects of dietary mineral supplementation on the performance and mineral retentions of broilers at high ambient temperatures. , 1994, British poultry science.

[7]  E. Nadel,et al.  Role of osmolality and plasma volume during rehydration in humans. , 1988, Journal of applied physiology.

[8]  G. Pesti.  Nutrient requirements of poultry , 1995 .

[9]  R. M. Forbes,et al.  Effect of altering the dietary cation-anion ratio on food consumption and growth of young chicks. , 1966, The Journal of nutrition.

[10]  F. Owens,et al.  Chronic heat stress and respiratory alkalosis: occurrence and treatment in broiler chicks. , 1985, Poultry science.

[11]  A. V. Fischer da Silva,et al.  Dietary electrolyte balance for broiler chickens under moderately high ambient temperatures and relative humidities. , 2003, Poultry science.

[12]  R. Teeter,et al.  Broiler management during acute heat stress , 1996 .

[13]  A. C. Furlan,et al.  Exigências nutricionais de sódio e cloro e estimativa do melhor balanço eletrolítico da ração para frangos de corte na fase pré-inicial (1-7 dias de idade) , 2000 .

[14]  A. V. Fischer da Silva,et al.  Dietary electrolyte balance for broiler chickens exposed to thermoneutral or heat-stress environments. , 2003, Poultry science.

[15]  J. Brake,et al.  Optimum dietary arginine:lysine ratio for broiler chickens is altered during heat stress in association with changes in intestinal uptake and dietary sodium chloride. , 1998, British poultry science.

[16]  R. J. Johnson,et al.  The effects of dietary minerals and electrolytes on the growth and physiology of the young chick. , 1985, The Journal of nutrition.