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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
    MANAGEMENT OF POSTPARTUM ANOESTRUS USING HEATSYNCH PROTOCOL WITH NUTRITIONAL SUPPLEMENTATION IN CROSSBRED COWS
    (College of Veterinary Science Assam Agricultural University Khanapara, Guwahati-781022, 2017-07) KALITA, MRINAL; DEKA, K. C.
    The present study was conducted to find out the efficacy of Heatsynch protocol with nutritional supplementation on postpartum anoestrous crossbred cows. Forty postpartum anoestrous crossbred cows were selected based on the history and rectal palpation in Kamrup district of Assam. The animals were divided into four groups (n=10) viz., A, B and C and treated with Heatsynch + mineral mixture, Heatsynch + mineral mixture + bypass fat and Heatsynch respectively and AI was done at induced oestrus. Ten postpartum anoestrous crossbred cows were kept as untreated control (group D). Blood samples were collected from cows on day 0, 7, 8 and 9 of Heatsynch protocol for estimation of serum estrogen, progesterone, cortisol, cholesterol, total protein, calcium, phosphorus and zinc profile. The use of Heatsynch + mineral mixture, Heatsynch + mineral mixture + bypass fat and Heatsynch protocol resulted in 100.00, 100.00 and 90.00 per cent oestrus induction with mean interval of 34.65 ±1.56, 32.60 ± 1.54 and 45.65 ± 1.91 hours and conception rate at induced oestrus was 50.00, 60.00 and 44.44 per cent, respectively. The mean serum progesterone concentration on day 0, 7, 8 and 9 revealed that the values on 7 day (2.75 ± 0.01, 2.69 ± 0.01, 2.81 ± 0.02 ng/ml) were significantly higher (P<0.01) than the values obtained on day 0, 8 and 9 with the lowest concentration on day 9 (0.43 ± 0.01, 0.39 ± 0.01, 0.46 ± 0.02 ng/ml) in group A, B and C, respectively. Serum oestrogen concentration was significantly higher (P<0.01) on day 9 in all the three treatment groups than the values obtained on day 0, 7 and 8 of treatment. Serum cortisol level showed non-significant (P>0.05) difference between the treatment groups, however, varied significantly from the control group. The highest cortisol level was observed on day 9 of treatment (6.81 ± 0.02, 6.78 ± 0.07 and 6.84 ±0.06 ng/ml in group A, B and C, respectively). Serum cholesterol and total protein concentrations were the highest in group B and varied significantly (P<0.01) from the other groups. Serum calcium, phosphorus and zinc concentrations revealed that the values obtained in group A and B were significantly higher (P<0.01) than that in group C and D. It could be concluded that Heatsynch with nutritional supplementation resulted in effective induction of oestrus with satisfactory conception rate in postpartum anoestrous crossbred cows.