John Harris [jfhdally@agn.net.au] asked:
>In the section on Materials and Methods you state:
>The slurry came from a bio digester with the average
>retention time of 40 days. The input was pig manure
>from the pig fed with composite feeds mixed with
> >30-60% of chicken manure after treatment"
>
>Does this mean the chicken manure was added before
>digestion or after digestion.?

Dear Friends:

My answer is as follows:

Pig manure as input of digester came from a pig sty, in which pigs were
fed with the mixture of bran and treated chicken manure (30-60%). Of
course before digestion of pig manure.

Li Kangmin