About Yu Linghong
About 江西省九江市濂溪区農業局,江西九江,332000
About Yan Xiaosong
About 吉林省公主嶺市獣薬飼料監察所,吉林公主嶺,136100
About Jilin Xumu Shouyi
About breast-feeding
About pork
About quality
About centralization
About nursing period
About breed
About breeding(genetics)
About 高強度
About 種豚
About 優良品種
About 母豚
About Swine(=pigs)
About 授乳
About 母豚
About 乳
About 原因
About 対策