Evaluation of microalgal and formulated diets for the culture of the New Zealand pipi clam Paphiesaustralis


1 Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia

2 Faculty of Applied Sciences, Universiti Teknologi MARA Perlis, 02600 Arau, Malaysia

3 School of Applied Sciences, Faculty of Health and Environmental Sciences, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand


A set of feeding trials was carried out for different microalgal species and processed diets for the culture of the New Zealand pipi, Paphiesaustralis. Five microalgal species (Isochrysisgalbana clone T-ISO, PavlovalutheriTetraselmissuecicaChaetocerosmuelleri, and Thalassiosirapseudonana clone 3H) and three formulated diets (baker’s yeast, wheat flour, and corn flour) were fed to spat, juvenile, and adult pipi for 21 days. Unfed pipi were used in the control group. The spat and juvenile pipi showed the major shell increase with Igalbana, while the greatest wet weight increase was obtained with Plutheri. The shells of adult pipi grew better with corn flour and Plutheri-fed group obtained the greatest wet weight. Results of proximate analysis in adult pipi revealed that proteins and lipids were accumulated in the tissue for all fed groups, while carbohydrate levels depleted in all treatments including the control group. It is suggested that the gonads have developed during the experiment.