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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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20111
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Subject: Veterinary Anatomy and Histology × End date: 2017 × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    STUDIES ON GROSS ANATOMY, HISTOMORPHOLOG AND HISTOCHEMISTRY OF THE FEMALE GENITAL SYSTEM OF GOAT FOLLOWING HORMONAL TREATMENT FOR SUPEROVULATION
    (Assam Agricultural University, Khanapara, Guwahati, 2011-08) DAS, JOY PRAKASH; Sarma, Kabita
    In the present investigation, a total of 12 (twelve) healthy female goats of 6 months to one year of ages were used for studying the effects of exogenous hormones on the female genitalia. The first three animals served as untreated controls. Rest of the nine animals were further divided into three groups of three animals in each group receiving one dose of PMSG:HCG (750:1500 IU) at the age of six months, and out of that, three animals received a second dose of the hormones after a gap of three months and rest three after a gap of six months. Reproductive organs from the control group and first experimental group after being hormonally treated were collected after laparotomy. The different biometrical values viz. length, breadth and thickness were recorded for the three age groups separately and found that these values increased with the advancement of age and the biometrical values of the experimental animals were higher than the control group. The biometrical values in respect of thickness recorded for the control group were 0.425 ± 0.002 cm, 0.870 ± 0.018 cm and 0.932 ± 0.013 cm and same for the experimental groups of goat were 0.680 ± 0.020 cm, 0.982 ± 0.017 cm and 1.294 ± 0.012 cm respectively. Mean ± S.E. of the infundibulum in respect to the control group for the 3 different age groups were 1.490 ± 0.000 cm, 1.500 ± 0.000 cm and 1.490 ± 0.000 cm and for the experimental group for the 3 age groups were 1.523 ± 0.012 cm, 1.721 ± 0.007 cm and 3.000 ± 0.570 cm respectively. In the present study it was observed that the biometrical values of the infundibulum of the experimental groups registered higher values than the control group. The longest part of the oviduct of goat was the ampulla recording 9.500 ± 0.000 cm, 13.000 ± 0.000 cm and 13.520 ± 0.437 cm respectively in control group and 10.133 ± 0.437 cm, 13.507 ± 0.007 cm and 13.667 ± 0.667 cm respectively in superovulated group. The Mean ± S.E. recorded for length (cm) and diameter (cm) of isthmus in control group were 1.400 ± 0.000, 2.100 ± 0.000 and 2.450 ± 0.000, and 0.200 ± 0.000, 0.300 ± 0.000 and 0.330 ± 0.000 respectively in different age groups. The biometrical values were higher in the superovulated group than the control group. The Mean ± S.E. values for length (cm) of horn of uterus in control group recorded were 6.000 ± 1.155, 16.100 ± 0.000 and 15.980 ± 0.000 and superovulated group were recorded 7.700 ± 0.000, 16.400 ± 0.100 and 16.467 ± 0.176 respectively in different age groups. The maximum values recorded for diameter (cm) was 2.290 ± 0.000 in 12 months age in control group and 2.333 ± 0.067 in superovulated group in 12 months 3rd repeated superovulation. The Mean ± S.E. of the length (cm) of cervix in control group was 1.700 ± 0.000, 1.900 ± 0.000 and 2.100 ± 0.000 and treatment group were 2.063 ± 0.007, 2.133 ± 0.133 and 2.200 ± 0.058 respectively. Histomorphologically the ovaries of goat were found covered by the germinal epithelium formed by simple squamous cells in both the control as well as the experimental groups. In the control group, atretic follicles were observed. In the 6 month old control group, no corpus luteum was observed. Serum cholesterol level was apparently higher in hormonally treated superovulated animals. The number of small follicles counted for control group of animals at 6 months, 9 months and 12 months of ages were 2, 3 and 3. The number of medium follicle counted for control group of animals at 6 months, 9 months and 12 months of ages were 1, 2 and 2. Respective values for super-ovulated goats were 2, 3 and 4. The number of large follicle counted for control group of animals at 6 months, 9 months and 12 months of ages were 0, 1 and 2 and respective values for super-ovulated goat were 1, 1 and 2. The number of corpus luteum counted for control group of animals at 6 months, 9 months and 12 months of ages were 0, 1 and 2 and respective values for super-ovulated goat were 9.5, 10 and 11. Cells of corona radiata granulosa showed presence of PAS positive reaction. Liquor folliculi of the ovarian follicles showed high concentration of neutral muco polysaccharide.