Effective Management Practices to Reduce the Incidence of Ascites in Broilers
ثبت نشده
چکیده
Reducing the Incidence of Ascites in Broiler Flocks Ensure adequate ventilation from placement to depletion. 1. Ventilation rates should be linked to house biomass, supplying enough air to replenish the oxygen consumed and ensure the adequate removal of waste gases. Providing sufficient oxygen is vital at high altitudes. Oxygen is a constant percentage of air, but at low atmospheric pressures associated with altitude, the absolute levels of oxygen may predispose birds to Ascites, particularly when other factors increase metabolic rate. Maintain air quality. 2. This is directly associated with good ventilation and appropriate litter management. High levels of air contaminants (e.g. carbon monoxide, carbon dioxide and dust) cause respiratory damage. This reduces respiratory efficiency and blood oxygen levels increasing the risk of Ascites. Avoid periods of cold stress particularly during the brooding 3. period. Exposure to cold periods increases the metabolic rate (oxygen demand) and can predispose/lead to Ascites later in the production period. At placement, floor temperatures should be 28-30oC (82-86oF), air temperature should be 30oC (86oF) and relative humidity between 60-70%. Feed programs to control early growth. 4. Well managed feed programs to control early growth (e.g. reducing the nutrient density of the diet, changing feed form) may help reduce Ascites. Implement programs after 7 days of age to ensure chicks get a good start. Lighting programs. 5. An additional 1-2 hours of dark added to the recommended 4 hours for broilers <2.5kg/5.5lbs (from 8 days of age to slaughter) or 6 hours for broilers >2.5kg/5.5lbs (from 8 days of age to slaughter) may help reduce Ascites. Do not implement light programs before 7 days of age. Incubation and Ascites. 6. Ensure adequate ventilation is achieved during the latter stages of incubation, particularly if incubation occurs at high altitudes. Effective Management Practices to Reduce the Incidence of Ascites in Broilers
منابع مشابه
Genetic Perspective of Ascites Syndrome in Meat-Type Chickens
Pulmonary hypertension syndrome (ascites) is a metabolic disorder in fast-growing broilers. Inconsistency of oxygen requirement and the cardiovascular ability make the birds susceptible to ascites. Incidence of ascites was accompanied by right ventricular hypertrophy, fluid accumulation in the abdominal cavity and finally mortality. The objective of the current study was to review the genetic b...
متن کاملEndogenous and environmental factors interactions that contribute to the development of ascites in broiler chickens: a review
The increasing susceptibility of broiler chickens to ascites syndrome has coincided with a continuing genetic and nutritional improvement in their feed efficiency and growth rate. Ascites is multifactorial and interactions between environmental and endogenous factors play a particularly important role. The selection of fast growing broilers for high feed efficiency, which is characterized by hy...
متن کاملEffects of Dietary Guanidinoacetic Acid Supplementation on Performance, Blood Parameters and Meat Quality of Male Broilers with Cold-Induced Ascites
The effects of dietary supplemental guanidinoacetic acid (GAA) on performance, biochemical indices and meat pH of broilers with cold-induced ascites were studied. A total of 640 day-old male broiler chicks (Cobb 500) were assigned to four dietary treatments including control diet; control diet supplemented with either 0.6, 1.2 or 1.8 g of GAA per kg of feed. Each treatment was replicated in 8 b...
متن کاملEffect of prebiotic on gut development and ascites incidence of broilers reared in a hypoxic environment.
Modern broilers have been genetically selected for an increased growth rate and improved feed conversion, but they are also more susceptible to ascites. Ascites occurs when there is an imbalance between available oxygen and the oxygen demand of the broiler. We hypothesized that promoting neonatal gut development with a prebiotic, such as Aspergillus meal (Prebiotic-AM), would enhance gut effici...
متن کاملComparative study on the beneficial effects of different dark-length schedules on the incidence of ascites and metabolic parameters in fast growing broiler chickens
BACKGROUND: Increasing of oxygen consumption in fast-growing broiler chickens is associated with the more pronounced occurrence of right ventricular hypertrophy and ascites. While, rearing of susceptible chickens in dark condition could reduce the metabolic rate of birds and hence the incidence of ascites. OBJECTIVES: The present study was designed to investigate a comparative study on the inf...
متن کامل