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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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20171
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Subject: Animal Nutrition × Author: DUTTA, KONKONA × End date: 2019 × Start date: 2016 × Type: Thesis × Thesis Type: M.V.Sc. ×
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    ThesisItemOpen Access
    PERFORMANCE OF GROWING PIGS ON CORN BASED DIET SUPPLEMENTED WITH PHYTASE AND NON-PHYTATE PHOSPHORUS
    (Assam Agricultural University, Khanapara,Guwahati, 2017-07) DUTTA, KONKONA; Bhuyan, Robin
    An experiment was conducted to study the performance of growing pigs on corn based diet supplemented with phytase and non-phytate phosphorus with twenty four castrated crossbred (Hampshire×Assam local) pigs weaned at 42 days of age. The average initial body weight of the animals ranged from 14.84±1.19 to 15.12±1.13 kg. They were divided into four different groups of 6 animals each viz. T₁, T₂, T₃ and T₄ and allotted to four nutritional treatments following randomized block design. Pigs in each group were offered ad libitum grower ration containing 18.26% CP and 3.17 Mcal ME/kg diet by using conventional feed ingredients viz. maize, wheat bran, soya bean, and de-oiled groundnut cake as per BIS (2001) specification of nutrient requirements. All the 4 experimental diet were supplemented with 0.2% non-phytate phosphorus (NPP) in the form of dicalcium phosphate (DCP) along with different levels of phytase enzyme. T₁ ration was devoid of phytase enzyme where as T₂, T₃ and T₄ ration was supplemented with 250, 500 and 750 unit of phytase per kg diet, respectively. Feeding trial was conducted for 6 fortnights followed by 5 days of metabolism trial with 3 animals in each group. The addition of phytase enzyme increased feed consumption in all the experimental groups with the progress of age of the pigs with highest increased rate in phytase supplemented group @750 unit/kg diet. It was observed that there was significant effect (P<0.05) in the dry matter intake per 100 kg body weight and per kg W0.75. During the entire growth period, the average body weight and rate of mean daily gain was significantly higher (P<0.05) in T₄ group. The rate of mean daily gain was 355.04±7.72, 389.56±13.45, 425.95±17.43 and 470.12±11.63 g in T₁, T₂, T₃ and T₄ groups, respectively. The feed conversion efficiency improved in phytase supplemented group and was found to be significantly better (P<0.05) in T₄ amongst all the groups. There was significant difference among the groups in respect of digestibility of DM, OM, CP, CF, EE, NFE and total carbohydrate. When the availability of crude protein and digestible energy was calculated against the NRC requirement, it was observed that animals received 104.32, 126.15, 143.0 and 148.68 percent CP and 145.04, 150.83, 172.31 and 180.99 percent DE in T₁, T₂, T₃ and T₄ groups respectively. No significant effects (P>0.05) of phytase addition were observed on blood biochemical constituents like glucose, total protein, calcium, inorganic phosphorus, glutathione peroxidase and lipid peroxidase. Feed cost per kg gain was Rs. 112.45, Rs. 112.57, Rs. 114.85 and Rs. 108.95 for T₁, T₂, T₃ and T₄ group, respectively. It is concluded that supplementation of phytase @ 750 unit/kg feed along with 0.2% NPP in the form of DCP is advantageous for growing pigs in terms of growth and economic return.