BIODIVERSITY, ABUNDANCE OF PLANKTON AND WATER QUALITY VARIABLES OF RAMSHAGAR IN DINAJPUR
Ramshagar dighi is the largest man made pond (Dighi, Bengali meaning) sited at Tajpur village in Dinajpur. It bears some exceptional historical events of national heritage. The water area of Ramshagar dighi measures 1039m along north-south and 192.6m along east-west. Approximate depth of the tank is 9.10m Ramshagar dighi is surrounded by l0.75m high wall.
A SURVEY OF MALLOPHAGA (INSECTA: PHTHIRAPTERA) OF DOMESTIC CHICKENS (GALLUS DOMESTICA L.) IN NAOGAON DISTRICT, BANGLADESH
To study the species variety and prevalence of the Mallophaga (Insecta: Phthiraptera) of the domestic chicken (Gallus domestica L.), a survey was performed in four upazilas (Manda, Mahdevpur, Atrai and Badalgachhi) of Naogaon district in a period of 10 month from Jun 2011 to March 2012. A study total 130 poultry farms and houses of Naogaon. Biting louse infestation was 100%. A total of 10762 individuals of Mallophaga were collected and identified. Five species of lice were identified: Menopon gallinae (line, 1758), Menacanthus stramineus (Mitzsch, 1818), Lipeurus caponis (Linne, 1758), Goniocotes gallinae (De Geer 1778) and Goniodes dissimilis (Denny, 1842). The occurrence of these lice on poultry birds was – Menopon gallinae (42.94%), Menacanthus stramineus (28.52%), Lipeurus caponis (10.77%), Goniocotes gallinae (14.72%) and Goniodes dissimilis(3.05%). Among them M. gallinae was the most common and G. dissimis was the lowest share of occurrence. The density of each proven species of Mallophaga was established. The species variety of Mallophaga on chickens was relatively poor. According to the literature, there is no record of G. dissimilis in Bangladesh which has identified during this research work.
Ramshagar dighi not an actually sea, but also it’s a big pond known as Ramshagor dhighi. Ramshagar dighi is the largest man made pond (Dighi, Bengali meaning) sited at Tajpur village in Dinajpur. Ramshagar dighi is only 8 km south from Dinajpur Town. It bears some exceptional historical events of national heritage. Ramshagar dighi was excavated by Raja Ram Nath, who dug it in time of the eve of battle of Palashi. Raja Ram Nath begun to dig out the Tank or Dhighi on the basis of ‘Food for Work’ system. About 1.5 millions of labors work in there to excavate the biggest pond of Bangladesh. Ram Nath spends an amount of Taka 30,000 in his time. Most of the historians believe that Ramshagar dighi was created during the 1750 to 1755 AD.