Effects of types of floor and number of supplemental heat lamps on performance and structural soundness of weaned pigs
1987
Nahm, K.H. (Taegu Univ., Taegu (Korea R.). Coll. of Agriculture)
Two trials were conducted, involving 168 weaning pigs at an average age of 45+-1 days, to determine the effects of flooring materials and supplemental heat lamps on structural soundness. The pigs were housed in the environmentally controlled swine room except for in trial 1 when an outside concrete floor with a mud-sand area in half of the pen was used. Swine room temperature was maintained at approximately 15 deg C and the temperature of the outside concrete floor was maintained at approximately 5-10 deg C. During two trials half of the fans in a mechanical ventilation system were operated to keep indoor temperature constant from the outside w1055inter wea
显示更多 [+] 显示较少 [-]