Thanks for your query,The Ph of semen of your husband is high .You have not specified the value of Ph
Normal value of Ph of semen is from 7.2 -7.8 .Any value above 8 is due to infection either in seminal vesicle
He needs to take broad spectrum antibiotics like Augmentin
or Doxycycline for four weeks.and repeat the semen analysis
after completion of course of antibiotics.