The research was purposed to know breeders profile, asses how much is the cost, the revenue, the profit and the business feasibility of a cow fattening with fermentation methods and conventional methods. The basic method used in this research was descriptive analysis. Sample was taken by a cencus, with numbers of 12 respondents consist of 3 breeders cow with fermentation methods and 9 breeders cow with conventional methods. Based on the research, The total cost of fattening cattle with fodder fermented methods per 3 tails is Rp 47,715,573,-, resulting in the acceptance of Rp. 58,244,667,-and the income of Rp. 13,764,055,-with a turnover of Rp. 10,529,094,-whereas the total cost of fattening cattle with feed conventional methods of 2 tails is Rp. 34,441,396,-produce conventional acceptance of Rp. 40,584,667,-8,728,467,-and revenues with profit of Rp. 6,143,271,-.Labour productivity, capital productivity and R/C venture fattening cattle with fodder fermented is higher than the method of fattening cattle feed with conventional methods. Labor productivity of dairy farmers with feed fermentation method of Rp 479.759,-/HKO, a 26% capital Productivity and R/C 1.22 while labour productivity dairy farmers with feed conventional methods of Rp 343.017,-/HKO, the productivity of capital is 23% and R/C 1.19.