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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 EFFICACY OF PROBIOTICS (SWINE AND DAIRY ORIGIN) ON GROWTH AND NUTRIENTS UTILIZATION IN GROWING PIGS
    (Assam Agricultural University, Khanapara,Guwahati, 2017-07) JOYSOWAL, MAMATA; Saikia, B.N.
    An experiment was conducted to investigate the comparative efficacy of probiotics of dairy origin (Lactobacillus acidophilus NCDC15) and swine origin (Pediococcus acidilactici FT28) on growth, feed conversion efficiency, nutrient utilization and intestinal microflora and carcass yield of (HD-K 75 (75%H) crossbred pigs. Twenty four weaned crossbred piglets of above two months of age having average body weight 18.33±0.98 kg randomly divided into three groups i.e. C, T1 and T2. A pig grower ration was prepared as per ICAR (2013) (for medium to high growth rate). In the control ration (grower ration) probiotics of dairy origin (L. acidophilus NCDC 15) and probiotics of swine origin (P. acidilactici FT28) were added as feed additives and designated as T1 and T2 ration. The feeding trial was conducted for the entire growing period (84 days). The dry matter intake per 100 kg body weight did not differ significantly (P>0.05) among the treatment groups. The rate of mean daily gain in body weight and feed conversion efficiency of pigs were 358.6±12.3, 418±8.61, 429.4±13.1 and 4.06±0.09, 3.51±0.14 and 3.48±0.66 in control, T1 (probiotics of dairy origin) and T2 (probiotics of swine origin) respectively. Significantly highest average daily gain in body weight and best fed conversion efficiency were found in T1and T2 group. The digestibility coefficient of DM, OM, EE CF and NFE did not differ (P>0.05) significantly between the control and treatment group. But the digestibility coefficient of crude protein of T2 (probiotic of swine origin) group and T1 (probiotic of dairy origin) differed significantly (<0.05) from control. Similarly, in case of percent retention of intake nitrogen was highest in T2 (Probiotic of swine origin) group followed by T1 (probiotic of dairy origin) group. In respect of faecal microbial count, Lactobacillus was significantly increased in T1 (probiotic of dairy origin) followed by T2 (probiotic of swine origin) group and E. coli count was decreased in T1 and T2 group. Highest (P<0.05) villi length (700.3±2.57µm) and crypt depth (123.70±81.52 µm) was observed in T2 group. Highest carcass weight was found in T2 group followed by T1 group but average vital organ weight was found to be higher T1 group followed by T2 group. Highest dressing percentage was observed in T2 group followed by T1 group. In respect of average pH value, water holding capacity and ERV, there was no significant (P>0.05) difference between the treatment groups. The concentration of blood glucose and cholesterol was found lowest (P<0.05) in T2 group followed by T1 group. There was no significant (P>0.05) difference in respect of serum protein, serum albumin level between the treatment groups. The cost of production per kg body weight gain was found lowest in T1 group (Rs. 97.69) (Probiotic of dairy origin followed by T2 (Rs. 98.94) group (probiotics swine origin). This it is revealed that supplementation of probiotic of dairy and swine origin is beneficial in growing stage in respect of growth, feed conversion efficiency and digestibility of nutrients. The supplementation of probiotic of dairy and swine origin also improves blood biochemical profile, intestinal morphology and enhances faecal microbial count in respect of lactobacillus. Hence, it may be recommended that probiotic dairy origin (Lactobacillus acdidophillus NCDC 15, 1-2 x109 cfu/g) and swine origin (Pediococcus acidilactici FT28, 1-2 x 109 cfu/g) may be used as feed additives in growing pigs as probiotic.