Eupatorium adenophorum is considered to be a serious weed in agriculture, especially in rangelands where it often replaces either the more-desirable vegetation or native species, but also in forests. Grazing animals get accidentally exposed to the plant under scarcity conditions. A considerable variation between the animal species exists in terms of susceptibility to toxicity due to E. adenophorum. It is generally unpalatable to grazing animals, but goats graze on this plant infrequently. It is fatally toxic to horses and causes the "blowing disease" in Hawaii and "Numinbah disease" or "Tollebudgera horse disease" in Australia. Toxicopathological studies were taken up in Swiss albino mice, as a model and the effects of the plant extract on hematological, biochemical, gross pathological and histopathological parameters were recorded. The plant extract was found to be highly hepatotoxic in mice as evidenced by the changes in blood-biochemical, liver enzyme activities, gross and histopathology of liver. The results of the study suggest that the consumption of the extract of E. adenophorum as medicinal purposes without proper dosing may produce hepatotoxicity in humans.

Nanotechnology refers to the use of very tiny (nano-scale) materials in a range of novel ways. 'Nano' means tiny and nano-particles are tiny particles, more than 8000 times smaller than a human hair. The properties of nano-particles make them suitable for a range of environmental applications, both in terms of improving existing environmental problems or by anticipating and preventing future environmental problems. Some of the greatest potential uses or application of nanotechnology in the environment are as biosensors and in the sectors of treatment, agriculture, veterinary and medical sciences, fisheries, bioremediation and for green nanotech manufacturing and engineering. The present article has been constructed considering the tremendous potential and application of nanoscience and nanotechnology in the concerned fields.

A survey study was conducted to study the incidence of zoonotically significant bacterial diseases and endoparasitic infestations in wild spotted deer (Axis axis) in different National parks, Sanctuaries and Deer parks of West Bengal, India. The overall study revealed that the incidence and mortality caused due to zoonotically significant bacterial diseases was more in Deer parks than in National parks and Wild life Sanctuaries. Deer population losses due to endoparasitic infestation were recorded to be higher in National parks and Wildlife sanctuaries than in Deer parks.

There is always a need for enhanced disease resistance, feed efficiency and growth performance in poultry industry as well as in fisheries and aquaculture. The cost of production are likely to be reduced if growth performance and feed efficiency are increased in commercial poultry production and aquaculture. Also, if the survivility increase, then their overall production cost would be remarkably reduced. Dietary supplementation of different feed additives e.g. immunostimulants, probiotics and prebiotics usually in small quantities for the purpose of fortifying it with certain nutrients have been found to be beneficial for improving immune status, feed efficiency and growth performance of poultry and finfishes.

The study was conducted to find the seroprevalence of Infectious Bovine Rhinotracheitis (IBR) in cattle population of different districts of West Bengal, to perform the end-point antibody titration of representative IBR positive serum samples and to make attempts for cultural isolation and identification of bovine herpes virus-1 (BHV-1). Serosurvey indicated the prevalence of IBR among wide cattle population of West Bengal which poses a potential threat to both dairy and beef cattle breeding herd and in beef feedlot. Strict control measures should be implemented including quarantine and serological testing of transported animals, health management and effective vaccination of new herds.