อัตราการเจริญเติบโตและคุณภาพของวุ้นสาหร่ายสีแดงสกุลกราซิลาเรียที่เพาะเลี้ยงในน้ำทอ้งจากนากุ้ง

Abstract

The purpose of this research was to investigate the relative growth rate and agar quality (agar yield and gel strength) of Gracilaria fisherj from Songkhla and G.tenuistipitata from Pattani which cultured in the cement tank contained sewage water from shrimp pond for 3 months. Theresults were found that the relative growth rate of G.fisieri and G.tenuistipitata average 1.79g./d and -o.269/d respectively. The agar yield and gel strength of G.fisheri at density ofo.skg showed the highest value (yield= za. zqadw,gel strength= 33.sg.cm'?). The agar yield and gel stren gth of G.tenuistipirara at density of r.okg gave the highest value(yield= 1 9ol,dw gel strength= 1 58.6g.cm'?)