A mathematical equation to describe the influence of age, wind speed and ambient temperature on heat production in Turkeys (Meleagris gallopavo)

Heat produced by Broiler Chickens in a Commercial Transport Vehicle

“…3 m 2 ) give 0)9 and 1)6 m/s for the lorry and 1)0 and 1)8 m/s for the trailer. Comparisons with the laboratory work of Jurkschat et al (1986), who used turkeys, showed increased heat loss with wind speed dependent on inlet temperature of approximately 4 W/kg at 53C, 2 W/kg at 203C and (1 W/kg at 353C for an increase in wind speed of 1 m/s. Mitchell (1985) showed increased sensible heat loss of approximately 0)6 W/kg at 203C and 1)6 W/kg at 303C again for an increase in wind speed of 1 m/s.…”

Opinion of the Scientific Panel on Animal Health and Welfare (AHAW) on a request from the Commission related to the welfare of animals during transport

“…So, the overall condition of the bird's plumage is of great importance in terms of the climatic situation on transports. However, there are some more factors such as age, wind speed and relative humidity which influences the non-evaporative and evaporative heat loss of turkeys as explained in the mathematical equation of Jurkschat et al (1986).…”