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Submitted on: 08 May 2011.
Revised on: 05 July 2011.
Accepted on: 31 August 2011.
___________________JOURNAL OF DAIRY RESEARCH---CAMBRIDGE UNIV PRESS
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Submitted on: 26 June 2008.
Revised on: 16 September 2008.
Accepted on: 08 October 2008.
___________________JOURNAL OF DAIRY RESEARCH---CAMBRIDGE UNIV PRESS
Submitted on: 04 February 2005.
Revised on: 26 April 2005.
Accepted on: 03 June 2005.
___________________JOURNAL OF DAIRY RESEARCH---CAMBRIDGE UNIV PRESS
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Submitted on: 17 January 2017.
Revised on: 25 March 2017.
Accepted on: 05 April 2017.
___________________JOURNAL OF DAIRY RESEARCH---CAMBRIDGE UNIV PRESS
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Submitted on: 28 December 2015.
Revised on: 19 March 2016.
Accepted on: 28 April 2016.
___________________JOURNAL OF DAIRY RESEARCH---CAMBRIDGE UNIV PRESS