Pandey, R. K.Rajendra, Bhosale Tushar2019-04-272019-04-272018Chelated mineralshttp://krishikosh.egranth.ac.in/handle/1/5810101242India being an agrarian country has a wide agricultural base complemented by an ever expanding livestock sector which contributes significantly to the agricultural economy. The value of output from livestock and fisheries sectors together is about 21.6 per cent of the total value of output from Agriculture & Allied Sectors. The contribution of this sector to the total GDP is 3.9% (economic survey 2014-15). As the ownership of livestock is more evenly distributed with landless labourers and marginal farmers, the progress in this sector will result in a more balanced development of the rural economy. So it is quite imperative to boost this sector especially when it determines livelihood of millions of people. The first unique characteristic of Indian Dairy Industry is that, it is in the hands of small holders, milk production is an integral part of agriculture involving the two third of milk producers who are small or marginal farmers and 20 % of milk producers have no land. Milk production in country over the last one decade has increased by about 5 % per annum and the per capita availability of milk improved from 337 g in 2015-16 to 355 g in 2016-17 (NDDB, 2018). Milk production of India during 2015-16 was 155.5 million tonnes which is increased in 2016-17 is 165.4 million tonnes. Increase in milk production and its sustainability are associated with both genetic and nutritional improvement factors. India possess 190.9 million cattle & 76.7 million adult female cattle heads (NDDB, 2012) & 108.7 million heads of buffaloes & 56.6 millions of adult female buffalo (NDDB, 2012) and 135 million heads of goats & 65.1 millions of sheep (NDDB, 2012). (Source: livestock censuses, Department of Animal Husbandry, Dairying & Fisheries, Ministry of Agriculture & Farmer Welfare, GoI.) The effect of supplementing chelated minerals (fedamin) manufactured by ‘Guybro chemicals’ with the concentrate mixture was evaluated in terms of milk production, composition & mineral status of the animals. The experiment was conducted on lactating ‘Sahiwal’ & ‘Hariyana’ cows at ‘Gowshala Dairy farm BHU, Varanasi’ 221005. The animal were selected for the experiment is between 3rd & 5th lactation and having ad lib. Feeding. The animals were divided into 3 equal groups on the basis of breed, lactation number & milk yield of the previous lactation. The observations were recorded for 21 days. 1st group were put on control feeding, i.e. fed concentrate mixture without chelated minerals.The 2nd & 3rd group were given 50g (25+25 g morning & evening)& 75g (37.5+37.5 g morning & evening) of chelated mineral supplement/ head/ day respectively (fedamin). The chelated minerals were fed to the animals with concentrate mixture during milking time (Morning & Evening).The milk composition were checked in Department of Animal Husbandry & dairying lab by ‘Ekomilk’ machine. Average daily milk production of cows from groups I, II and III was 11.34, 14.43 and 7.53 kg, respectively. It was noticed that the differences in milk production of cows in groups I, II and III were statistically significant (P<0-01). This indicated that chelated minerals at 25 g level significantly increased milk production of cows. From this, it is concluded that the inclusion of amino acid chelates in the feed of lactating cows show statistically and economically significant positive effect such as 15-16 % increase in milk production when fed at the rate of 25 g/day.ennullThesis