MORPHOLOGY AND GENERAL REPRODUCTIVE STAGES OF ...

More documents

Recommendations

Info

Specially dedicated to my beloved parents ii
Abstract of thesis presented to the Senate of Universiti Putra Malaysia in fulfilment of the requirement for the Degree of Master of Science MORPHOLOGY AND GENERAL REPRODUCTIVE STAGES OF Pangasius nasutus FROM SG. PAHANG IN MARAN DISTRICT, PAHANG, MALAYSIA Chairman : Annie Christianus, PhD By MOHD ZAFRI BIN HASSAN June 2006 Faculty : Agriculture The present study was conducted to describe the morphological differences between P. nasutus and P. conchophilus, to describe and classify the histology of oocyte and spermatogenic cells of mature P. nasutus and to observe the seasonal patterns of the gonadal stages in twenty specimens of P. nasutus and P. conchophilus from Maran. In order to signify the species differences, twenty specimens of Thai-origin P. conchophilus from a cage culture at Sungai Pahang near Pekan, Pahang, Malaysia were also examined. The morphometric measurements were presented in percentage of standard length (%SL), predorsal length (%PDL) and head length (%HL). Based on the classification results, all P. nasutus specimens were different from P. conchophilus in both populations, in terms of snout length, eye diameter, lower and upper jaw length. A total of 205 P. nasutus were caught during the study period, from October 2004 to September 2005 for the gonadal stages study of P. nasutus. Nine distinctive iii
Page 1 and 2: UNIVERSITI PUTRA MALAYSIA MORPHOLOG
Page 3: MORPHOLOGY AND GENERAL REPRODUCTIVE
Page 7 and 8: Abstrak tesis yang dikemukakan kepa
Page 9 and 10: ACKNOWLEDGEMENTS In the name of All
Page 11 and 12: This thesis submitted to the Senate
Page 13 and 14: TABLE OF CONTENTS DEDICATION ABSTRA
Page 15 and 16: LIST OF TABLES Table Page 1 Subgene
Page 17 and 18: LIST OF FIGURES Figure 1 Taxonomic
Page 19 and 20: 24 Nucleolar stage. Chromatin nucle
Page 21 and 22: LIST OF ABBREVIATIONS Analysis of V
Page 23 and 24: A number of species of the family P
Page 25: Reproductive biology has served num

MORPHOLOGY AND GENERAL REPRODUCTIVE STAGES OF ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?