Dear Mr. Li,
I read the case study experiment in Taixian County and would appreciate
very much if you could response to my questions.

>Fishponds were No. 1, 2, & 3 with an area of 10,000 m2
>in depth of 1.15~1.25 m.

is this 10,000 m2 each or the 3 ponds have a total of 10,000 m2.
If the total is 10,000 m2, could you give the size of each individual pond?

>From Pond 1 (fed with slurry), the harvest is 45.88 kg (with 84 % survival)
while from pond 2 (fed with manure) the harvest is 18.39 kg (with 17.35 % survival).

If pond 1 had 100 % survival, then the harvest would be : 54 kg
if pond 2 had 100 % survival, then the harvest would be : 105.9 kg

How does one argue that the pond fed with slurry gives a higher yield ?

regards
jacky foo