SUBLETHAL EFFECTS OF ARSENIC ON SOMEBIOCHEMICAL AND HISTOLOGICAL ALTERATIONS IN THE MUSCLE TISSUE OF THE MILK FISH Chanos chanos
THIMMARAYAN RAJA
Department of Zoology, Khadir Mohideen College, Adirampattinam 614 701, Tamil Nadu, (Affiliated to Bharathidasan University, Tiruchirappalli), India.
KANNAYIRAM MUTHUKUMARAVEL
Department of Zoology, Khadir Mohideen College, Adirampattinam 614 701, Tamil Nadu, (Affiliated to Bharathidasan University, Tiruchirappalli), India.
VENKATACHALAM KANAGAVALLI
Department of Zoology, A.V.V.M. Sri Pushpam College, Poondi 613 503, Tamil Nadu, (Affiliated to Bharathidasan University, Tiruchirappalli), India.
MOHAMED SAIYAD MUSTHAFA
Department of Zoology, The New College (Autonomous), Chennai, Tamil Nadu, India.
GURUSAMY CHELLADURAI *
Department of Zoology, Bishop Heber College (Autonomous), Trichy, Tamil Nadu, India.
*Author to whom correspondence should be addressed.
Abstract
The present study has been conducted to understand the effect of sublethal concentration of arsenic (96 LC50 – 10% SLC) on the biochemical composition and histology of muscle of the milk fish Chanoschanos for a period of 10, 20 and 30 days. Glycogen, protein and lipids were measured both in control and experimental fish. During the exposure periods the biochemical constituents (carbohydrates, proteins and lipids) were decreased in the experimental fish with duration. The histopathological changes induced in the muscle were degeneration of muscle fibre, oedema, atrophy of muscle fibres and shortening of muscle bundle.
Keywords: Arsenic, biochemical parameters, histology, Chanoschanos