Effects of dietary protein level and source on milk production, nitrogen and energy utilisation and methane emissions of zero-grazed dairy cows
This thesis details a series of studies to evaluate the effects of different dietary treatments on production performance and N utilisation in lactating dairy cows, with a particular emphasis on urinary N excretion. Firstly a digestibility trial was performed to investigate the effect of concentrate...
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Queen's University Belfast
2016
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| Online Access: | http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.707232 |