Evaluation of the Pad Cooling System Effectiveness Used in Hot Weather Conditions in Broiler Houses: Izmir Case Study
Makaleler > Tam Makale · 2004
Yazarlar: Hakan Bayraktar, Mehmet Metin ARTUKOĞLU, Ali Altan
DergiPark (Istanbul University), Uluslararası, 2004, cilt 45
Özet
The objective of this research was to determine the effects of pad cooling system on broiler production. High environmental temperatures impair the growth and feed conversion of broilers. Production losses and mortalities due to high summer temperatures are serious problems in warmer regions of Turkey like Ege and Akdeniz. Using evaporative cooling systems can be an effective way to protect from the detrimental effects of heat stress in the warmest part of the day. Maintaining the broiler house at more nearly optimum temperatures by pad cooling reduces production cost but increases utility, electricity and water cost. Broiler growers routinely make decisions to balance these costs and benefits due to the daily weather conditions. In the study, warm season climatologic data of Izmir have been analyzed to determine the daily-hourly average effective temperatures and pad cooling efficiency in this area. Regression equations based on effective temperature have been obtained and live weight, feed conversion and mortality equation plotted at 42 days old. Broiler performance grown in house with and without pad cooling system has been simulated to judge the feasibility of pad cooling in a model broiler house with 18 000 capacity. Cost and income analysis of the system for broiler integrations and producers have been made to determine the system profitability with thermostat or humidistat control options. Results have shown that using pad cooling systems by thermostats control are more profitable for producer. On the other hand humidistat controlled systems have been found more profitable than thermometer controlled systems for integrations.