Early larvae of Lucilia cuprina had prohaemocytes, plasmatocytes and granular cells only. Vermiform cells appeared for the first time during the 3rd larval instar and spherule cells during the early pupal life. Sugar-fed females showed a higher percentage of prohaemocytes, plasmatocytes and vermiform cells while granular cells were always less in number as compared to the protein-fed females. During mid-pupal life no proper cells could be identified as the haemolymph was thick with proceeds of histolysis of different body tissues and broken down cells.
Six types of haemocytes were found in the haemolymph of Lucilia cuprina. These were prohaemocytes, plasmatocytes, podocytes, vermiform cells, granular cells, and spherule cells. Prohaemocytes were of two distinct sizes and were accordingly divided into two subtypes: microcytes and mactocytes
Regeneration of gastrocnemius muscle following transplantation was studied in mice. It was discovered that there was an initial phase of degeneration of almost all of the original muscle fibres followed by a regeneration of a new population of myotubes within the graft. By about the second week post-grafting, a distinct atrophy and degeneration of regenerated muscle fibres had set in. This process continued unabated so that by about the end of the fourth week there remained only a few regenerating muscle fibres within the graft, while the rest of the area was occupied by connective and adipose tissue elements. These results indicate that mouse gastronemius muscle does not possess good regenerative ability following transplantation. Possible reason for this inability are discussed.
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