He planned to have the gilts farrow down about the end of May.
他计划让母猪大约在五月份产小猪。
How to maintain sow immunity particularly in replacement gilts!
如何保持母猪的免疫力，特别是后备母猪！
They planned to have the gilts farrow down about the end of this month.
他们计划让母猪约在本月底下仔。
They planned to have the gilts farrow down about the end of this month.
他们计划让母猪约在本月底下仔。
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