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Assam Agricultural University, Jorhat

Assam Agricultural University is the first institution of its kind in the whole of North-Eastern Region of India. The main goal of this institution is to produce globally competitive human resources in farm sectorand to carry out research in both conventional and frontier areas for production optimization as well as to disseminate the generated technologies as public good for benefitting the food growers/produces and traders involved in the sector while emphasizing on sustainability, equity and overall food security at household level. Genesis of AAU - The embryo of the agricultural research in the state of Assam was formed as early as 1897 with the establishment of the Upper Shillong Experimental Farm (now in Meghalaya) just after about a decade of creation of the agricultural department in 1882. However, the seeds of agricultural research in today’s Assam were sown in the dawn of the twentieth century with the establishment of two Rice Experimental Stations, one at Karimganj in Barak valley in 1913 and the other at Titabor in Brahmaputra valley in 1923. Subsequent to these research stations, a number of research stations were established to conduct research on important crops, more specifically, jute, pulses, oilseeds etc. The Assam Agricultural University was established on April 1, 1969 under The Assam Agricultural University Act, 1968’ with the mandate of imparting farm education, conduct research in agriculture and allied sciences and to effectively disseminate technologies so generated. Before establishment of the University, there were altogether 17 research schemes/projects in the state under the Department of Agriculture. By July 1973, all the research projects and 10 experimental farms were transferred by the Government of Assam to the AAU which already inherited the College of Agriculture and its farm at Barbheta, Jorhat and College of Veterinary Sciences at Khanapara, Guwahati. Subsequently, College of Community Science at Jorhat (1969), College of Fisheries at Raha (1988), Biswanath College of Agriculture at Biswanath Chariali (1988) and Lakhimpur College of Veterinary Science at Joyhing, North Lakhimpur (1988) were established. Presently, the University has three more colleges under its jurisdiction, viz., Sarat Chandra Singha College of Agriculture, Chapar, College of Horticulture, Nalbari & College of Sericulture, Titabar. Similarly, few more regional research stations at Shillongani, Diphu, Gossaigaon, Lakhimpur; and commodity research stations at Kahikuchi, Buralikson, Tinsukia, Kharua, Burnihat and Mandira were added to generate location and crop specific agricultural production packages.

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  • ThesisItemOpen Access
    COMPARATIVE CYTOMORPHOLOGICAL, CYTOCHEMICAL, CYTOENZYMIC AND ULTRASTRUCTURAL STUDIES ON THE BLOOD CELLS OF ADULT RHODE ISLAND RED, ASEEL AND NON DESCRIPT INDIGENOUS CHICKEN OF MIZORAM
    (College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati, 2021-12) DOLEY, PROBAL JYOTI; Sarma, Kabita
    Matured erythrocytes were elliptical in shape and their mean length was measured to be 12.65±0.12 μ, 12.62±0.19 μ and 12.52±0.10 μ and their mean width was measured to be 6.83±0.09 μ, 6.81±0.11 μ and 6.07±0.07 μ in Rhode Island Red, Aseel and Zoar respectively. The hetrophils were the largest granulocyte and had a mean diameter of 10.01±0.16 μ, 10.23±0.12 μ and 9.98±0.23 μ while the basophils were the smallest granulocyte and had a mean diameter of 8.41±0.17 μ, 8.37±0.14 μ and 8.24±0.18 μ in Rhode Island Red, Assel and Zoar respectively. The eosinophils were almost equal to the heterophils and measured 9.53±0.10 μ in Rhode Island Red, 9.61±0.10 μ in Aseel and 9.82±0.24 μ Zoar. The monocytes were the largest leukocyte and had a mean diameter of 11.35±0.15 μ in Rhode Island Red, 11.97±0.27 μ in Assel and 11.43±0.10 μ in Zoar. The lymphocytes were of variable sizes and their mean diameter ranged from 5.96±0.13 μ, 6.09±0.11 μ and 5.67±0.13 μ to 9.35±0.48 μ, 9.88±0.20 μ and 9.13±0.04 μ in Rhode Island Red, Assel and Zoar respectively. The thrombocytes were the smallest blood cell and had a mean diameter of 4.85±0.10 μ, 4.93±0.15 μ and 4.47±0.08 μ in Rhode Island Red, Aseel and Zoar respectively. Reticulocytes and siderocytes were rare in the blood of Rhode Island Red, Aseel and Zoar. The heterophils of Rhode Island Red, Aseel and Zoar were positive for SBB, PAS, acid phosphatase, alkaline phosphatase and arylsulphatase while the eosinophils were positive for SBB, PAS, alkaline phosphatase, cytochrome oxidase and peroxidase. The basophils of Rhode Island Red, Aseel and Zoar were positive for toluidine blue while the thrombocytes were positive for PAS. Under Scanning Electron Microscopy the erythrocytes appeared elliptical in shape while the leukocytes and thrombocytes appeared round in shape with variable surface modifications. Under Transmission Electron Microscopy the granules of the heterophils of Rhode Island Red, Aseel and Zoar appeared predominantly fusiform in shape, the granules of the eosinophils appeared round in shape and that of the basophils appeared pleomorphic in shape. The cytoplasm of the monocytes, medium to large lymphocytes and thrombocytes of Rhode Island Red, Aseel and Zoar under Transmission Electron Microscopy appeared to be vacuolated and granular while that of the small lymphocytes appeared to be non vacuolated and granular.