The Effects Of Formalin And Sodium Chloride On Ectoparasites Of Imported Grass Carp (Ctenopharyngodon Idella Cuvier And Valenciennes 1844) Fingerlings.
Four shipments of grass carp imported from Indonesia were used for this study . The grass carp ( Ctenopharyngodon idella Cuvier and Valenciennes 1844) finger lings were infected by the monogenean ( Dactylogyrus lamellatus Akhrnerov 1952) ; protozoans ( Trichodina spp . , Trichodinella sp . ,Tri...
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| Format: | Thesis |
| Language: | English English |
| Published: |
1993
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| Online Access: | http://psasir.upm.edu.my/id/eprint/11783/1/FPSS_1993_1_A.pdf http://psasir.upm.edu.my/id/eprint/11783/ |
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| Institution: | Universiti Putra Malaysia |
| Language: | English English |
| Summary: | Four shipments of grass carp imported from Indonesia
were used for this study . The grass carp ( Ctenopharyngodon
idella Cuvier and Valenciennes 1844) finger lings were
infected by the monogenean ( Dactylogyrus lamellatus
Akhrnerov 1952) ; protozoans ( Trichodina spp . , Trichodinella
sp . ,Trichophrya sp . ,Cryptobia branchialis Nie ,
Ichthyophthirius multifiLiis Fouquet 1876 and
Piscinoodinium pillulare Schaperclaus 1954); trematodes
( metacercariae of Echinostomatidae and Transversotrema
sp . ) and a crustacean ( Argulus sp . ) . Dactylogyrus lamellatus Akhrnerov 1952 obt a ined in
this study were comparat ively smaller than those
previously described from USSR and Hungary .Transversotrema sp . wa s found underneath the scales of
grass carp . It differed in shape , size and certain
morphological details to other previously described species .Histopathological study carried out on the gills infected by echinostomatid metacercariae showed severe swollen chondrocytes, epithelial hyperplasia, squamous metaplasia of epithelial cells,atrophy,haemorrhages,necrosis and obliteration of blood vessels . |
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