Determination of the heating and cooling degree day values of laying quail henhouse by the degree day method

The present study, the required heating and cooling grade day values for henhouse that laying quail breeding carried out during 74 days between september-december, 2016 were determined to use by the degree day method. in the study, the heating (hdd) and cooling (cdd) degree day values were calculated according to the optimum temperature (24 °c) required in the poultry house depending on the outside temperatures and the current temperature value in the heated henhouse. depending on the outside temperature, there was a need for heating in the henhouse for 74 days and the hdd value was about 1175, while there was no need for cooling. considering the heating inside henhouse, 65 days of heating, it was found that 9 days of cooling is needed and hdd value was 279, while cdd value was 19. according to the calculated values, it was determined that about 76% of the optimum temperature needed inside the henhouse was met by heating, while the poultry was overheated during 9 days approximately. as a result of the study, it was determined that it is highly important for enterprises to know heating and cooling degree day values so as to predetermine the energy costs and to take the necessary structural measures in order to provide the optimum temperature values for the quails in the henhouse for profitable breeding.