Effect of Breeding Scale on the Productivity of Sows with Different Parity
LI Xiaoru, LI Feng, YANG Yuqing, LIANG Tong, SHAN Anshan, WU De
China Animal Husbandry and Veterinary Medicine . 2020, (5): 1384 -1394 .  DOI: 10.16431/j.cnki.1671-7236.2020.05.011