Sayam Aroonsrimorakot. Growth and food consumption behaviors of local land snail (Hemiplecta distincta) and (Cyclophorus fulguratus) for developing as commercial purpose. Doctoral Degree(Agricultural Interdisciplinary). มหาวิทยาลัยแม่โจ้. สำนักหอสมุด . : Maejo University, 2017.
Growth and food consumption behaviors of local land snail (Hemiplecta distincta) and (Cyclophorus fulguratus) for developing as commercial purpose
Abstract:
The researchers cultured two types of land snail as H. distincta and C. fulguratus in plastic containers that were covered by nets. Both types of land snails were fed by a variety of foods such as boiled eggs, tofu, mushroom and vegetable. The researchers analyzed the growth of land snail by measuring the sizes and weights of H. distincta and C. fulguratus every week. That result showed that the C. fulguratus preferred to consume cucumber while H. distincta preferred Abalone mushroom. In addition, land snails grow well in rainy season and hibernate in the dry season. The result of nutrition analysis (protein and fatty) of land snails found that H. distincta has more fatty acids than amino acids, the essential fatty acid such as Oleic Acid, Linoleic acid and Linolenic acid. While, C. fulguratus has more amino acids than fatty acids, the essential amino acids such as Histidine, Isoleucine Leucine, Lysine, Phenylalanine, Threonine and Valine. The result of bioaccumulation analysis (As, Cd, Hg and Pb) in the component of land snails show that the accumulation of heavy metal in land snails shell are more than meat and internal organs because the shell has CaCO3 component which is exchange of the ion between Can with positive ion of heavy metal. Most heavy metals concentrations are above CODEX general standard for contaminates and toxins in food and feed. Only Cd and Hg in meat and Hg in internal organs of land snails are less than CODEX std. The result of parasite analysis found that H. distincta has an Agiostrongirus cantonensis which is the cause to Meningitis in human but that parasite is not found in C. fulguratus.