[Methods] In the experiment, 150 1 day old Du Changda (DLY) piglets were selected and randomly divided into 5 groups, namely control group (DZ), experiment 1 (SY1), experiment 2 (SY2), and experiment 3. Group (SY3) and test group 4 (SY4),
Methods: The trial selected 150 piglets born 1 day-old duku (DLY) and randomly divided into 5 groups, respectively, control group (DZ), test group 1 (SY1), test 2 group (SY2), test 3 group (SY3) and test 4 group (SY4),
[Methods] 150 newly born 1-day-old Duroc Landrace (dly) piglets were randomly divided into 5 groups: control group (DZ), test group 1 (SY1), test group 2 (sy2), test group 3 (sy3) and test group 4 (sy4),<br>