Effect of measuring back fat and adjusting feed intake for breeding sows of commercial lines in Wens Group WS501

This study was aimed to obtain the effects of measuring back fat and adjusting feed intake on breeding sows. Back fat were measured, feed intake were adjusted for one year and reproductive performance changes were compared in the same period. The results showed that after measuring back fat and adjusting feed intake, accurate feeding could be achieved, sows body condition could be controlled reasonably, and reproductive performance of sows could be improved, so as to improve the efficiency of pig farm.