- Roychaudhary, P.N. (1997). Milk wave in Bihar. Dairy India - 1997.pp.125-129.
- Sharma, R.K. (1980). J. Extn. Systems, 1 : 75-79.
The study was conducted in Kalwari, Nariyar, Pilki, and Mohammadpur villages of Muzaffarpur district and Mahuawa, Bisunpurwa, Pipradih and Bela villages of East Champaran district of North Bihar. Data were collected from a total of 128 dairy farmers belonging to Beneficiaries (64) and non-Beneficiaries (64) of Tirhut Milk Producers' Co-operative Union Limited. Majority of the respondents were found to be experiencing moderate level of constraints in adoption of SDFPs. The extent of constraints were 50.48 and 46.08 per cent as experienced by beneficiaries and non-beneficiaries, respectively. Extent of constraints was maximum in breeding and minimum in management among both categories of respondents.