Abstract
Effect of different compounds against some principle calcium precipitation parameters in shell was studied on two terrestrial snails, Eobania vermiculata and Monacha obstructa. The tested compounds were Newmyl (the recommended compound), Lambada, Actra as synthetic compound, Tracer (bioinsecticide) and Tannic acid (natural product). Animals of each species were treated with LC50 of each compound using contact technique. The calcium precipitation parameters (Alkaline phosphatase (ALP), Acid phosphatase (ACP), Total protein (TP), Total lipid (TL) and cholesterol) were measured after one, three and seven days post treatment. Results showed that all tested compounds caused vacillated effects for the two snail species. Tannic acid and tracer were the most effective compounds on the all parameters in both species. While the recommended compound (newmyl) came in the last rank in the most of parameters. E. vermiculata was more susceptible to tannic acid than M. obstructa for ALP, ACP enzymes, total protein and cholesterol, while both species had the same response to total lipid. The fluctuation effects of tested biochemical parameters may be due to damage of cells under the impact of treatment with compounds.
Highlights
The terrestrial molluscs are considered a major pests of a wide range of agricultural crops in temperate and humid habitats world wide (Speiser and Kistler 2002)
Experimental Animals Adult individuals of the two terrestrial snail species, Eobania vermiculata and Monacha obstructa were collected from the infested ornamental plants at Giza Governorate
Parameter Determination: The activities of some enzymes and biochemical parameters were studied to clarify the physiological response of the terrestrial snail to the tested compounds i.e., alkaline and acid phosphatase, total protein, total lipid and cholesterol contents
Summary
The terrestrial molluscs are considered a major pests of a wide range of agricultural crops in temperate and humid habitats world wide (Speiser and Kistler 2002). They attack plants causing great damage to the cultivated plants. The main aim of this work is studying the efficiency of some compounds on the parameters affecting the synthesis of shell for the two snail species. These parameters are: alkaline and acid phosphatase, total protein, total lipid and cholesterol contents
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