Thumbnail Image

Chaudhary Charan Singh Haryana Agricultural University, Hisar

Chaudhary Charan Singh Haryana Agricultural University popularly known as HAU, is one of Asia's biggest agricultural universities, located at Hisar in the Indian state of Haryana. It is named after India's seventh Prime Minister, Chaudhary Charan Singh. It is a leader in agricultural research in India and contributed significantly to Green Revolution and White Revolution in India in the 1960s and 70s. It has a very large campus and has several research centres throughout the state. It won the Indian Council of Agricultural Research's Award for the Best Institute in 1997. HAU was initially a campus of Punjab Agricultural University, Ludhiana. After the formation of Haryana in 1966, it became an autonomous institution on February 2, 1970 through a Presidential Ordinance, later ratified as Haryana and Punjab Agricultural Universities Act, 1970, passed by the Lok Sabha on March 29, 1970. A. L. Fletcher, the first Vice-Chancellor of the university, was instrumental in its initial growth.

Browse

2008 - 200912010 - 20131
Reset filters
Subject: Fisheries × Author: Sunita Rani × Start date: 2003 × Type: Thesis ×
Reset filters

Search Results

Now showing 1 - 2 of 2
  • Thumbnail Image
    ThesisItemOpen Access
    Studies on the toxic effects of some heavy metals on enzymological parameters in Indian major carps
    (CCSHAU, 2013) Sunita Rani; Gupta, R.K.
    An accelerated release of heavy metals into the aquatic environment poses serious water pollution problems because of their toxicity, persistence and bio-accumulation in food chains. The present investigation was therefore aimed at studying the effect of heavy metals Cd and Zn alone and in combination on behavior, growth parameter, blood serum enzymes, ions and heavy metal residues in Indian major carps i.e., Catla catla, Labeo rohita, and Cirrhinus mrigala. In Indian major carps, growth performance in terms of live weight gain, growth percent gain in body weight, specific growth rate, decreased maximally in all the fish species viz. C. catla, L. rohita, and C. mrigala. exposed to Cd+Zn treatment. While a significant (P<0.05) increase in FCR values was observed in all the heavy metal treated fishes. Maximum increase in alkaline phosphatase and maximum decreases in enzymes (cholinesterase, lipase and lactate dehydrogenase) were in fish’s C. catla, L. rohita, and C. mrigala in the treatments of Cd+Zn. Same in case of combination of two heavy metals, Cd+Zn at 0.06ppm induced maximum reduction in metal ions (Sodium, Calcium and Chloride) and maximum increase in potassium ion contents in blood serum of fish C. mrigala, followed by L. rohita and least reduction was in the fish C. catla. Maximum increased in heavy metals contents in blood serum was in fish C. catla than in L. rohita and C. mrigala. The effects of Cd metal alone and in combination with Zn were further more distinct for digestive enzyme alterations. Activity of all the digestive enzymes was reduced in all the heavy metal treatments. Protease and amylase enzyme activity reduced maximum reduced in C. mrigala and amylase enzyme activity reduced minimum decreases in C. catla. Thus, Cd alone and in combination with Zn proved most toxic in all the fish species inducing alterations in behaviour, external body symptoms, growth performance, and body composition with reference to body digestive enzymes. The order of reduction of enzymes, metals ions and heavy metals content due to different treatments was Zn >Cd >Cd+Zn and species-wise reduction was in order of C. catla > L. rohita.> C. mrigala.
  • Thumbnail Image
    ThesisItemOpen Access
    Some ectoparasitic diseases in fresh water ornamental fish species
    (CCSHAU, 2008) Sunita Rani; Yadava, N.K.
    Parasitic diseases are infectious extoparasitic diseases caused by the parasites. A survey on some ectoparasitic disease in fresh water ornamental fish species was carried out at various shops of New Delhi. Saidpur fish aquarium House, Karnal, Department of Fisheries, Government of Haryana and at three aquarium shops of Hisar, four residential and office areas. The studies revealed that the level of infection of various ectoparasitic diseases were correlated with hydrobiological parameters were they related. They affect the fish directly or indirectly “Lernaeosis” infection was found in Gold fish, whereas “White spot” disease was found in Gold fish and Black moor. The correlation between hydro-biological parameters and per cent infected fish clearly showed that temperature, pH, DO and turbidity factors were negatively xvi correlated with per cent of infected fish, whereas total alkalinity, total hardness and free CO2 were positively correlated with per cent of infected fish. The studies showed that for the treatment of “Lerneaeosis” and “white spot” disease a combination of methylene blue + potassium permanagate; methylene blue + malachite green; copper sulphate + malachite green and formaline + malachite green was given to the infected fish at laboratory level, then 100 per cent recovery was observed in the infected fish. When sodium chloride was used alone for the treatment of infected fish then 100 per cent recovery was observed but recovery takes more time.