Biosynthesis of amylase from Aspergillus oryzae using purple fragrant rice ST as growth substrate
Nguyen Phuoc Minh
Perennial and non-perennial water bodies attract large number of waterfowls during winter season. Due to over exploitation of these water bodies the winter visitors are facing several threats. Among the threats poaching activity is the main reason for decline of water birds in many wetland areas. The present study highlighted poaching activity at 8 different Perennial and non-perennial tanks of Nalgonda district of Telangana state. The techniques adopted by the local people for trapping the birds vary significantly. The mortality of the water birds in both the tanks showed high for Ducks (3644) followed by waders (2805) during the study period. Among the ducks Lesser Whistling Teal mortality was predominantly high (26.3) followed by Pintail (24.12), Gargany, (19.54), Pochard (10.2) Spotbilled duck (7.30), Comb duck (6.92) and Shovellor (5.87) while in non-perennial tanks mortality high in Pintails (29.83) followed by Garganey (22.40), Lesser whistling teal (22.08), Pochard (8.63), Spotted billed duck (7.06), Comb duck (6.92) and Shovellor (4.87). The other birds such as Coots were also significantly found in the catches which ranged between 106 - 154 birds. The percentage of birds killed showed increasing trends in all the years of study and ranges between 4.2 to 71.9%. The overall percent catches were significantly high for coots in both perennial and non-perennial tanks.
Nguyen Phuoc Minh. Biosynthesis of amylase from Aspergillus oryzae using purple fragrant rice ST as growth substrate. International Journal of Multidisciplinary Research and Development, Volume 1, Issue 5, 2014, Pages 90-93