Submitted on: 24 September 2000.
Revised on: 14 November 2000.
Accepted on: 31 December 2000.
___________________INDIAN JOURNAL OF DAIRY SCIENCE
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Submitted on: 09 September 2006.
Revised on: 02 December 2006.
Accepted on: 23 January 2007.
___________________INDIAN JOURNAL OF DAIRY SCIENCE
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