Weller, Richard and Davies, Robert (2002) The effect of diet on the milk quality of organic dairy cows. In: Powell, Jane and et al., (Eds.) Proceedings of the UK Organic Research 2002 Conference, Organic Centre Wales, Institute of Rural Studies, University of Wales Aberystwyth, pp. 197-198.
This report was presented at the UK Organic Research 2002 Conference. Changes in milk quality were evaluated with spring-calving dairy cows and heifers fed organic diets and different levels of concentrates during early lactation. The diets were based on ad libitum forage and either 2 kg of concentrates/day (Diet 1) or concentrates fed according to milk yield up to a maximum of 7 kg/day (Diet 2). Average milk yields during the study for the cows and heifers were 23.1 and 20.1 kg/day (Diet 1) and 25.8 and 24.0 kg/day (Diet 2), respectively. The highest number of samples with a fat to protein ratio of 1.4 or > were found in samples collected from cows and heifers fed Diet 1 (20.9 and 50.0%). The lowest milk protein value of 2.86% was recorded from the heifers fed Diet 1. Low milk lactose values were correlated to high somatic cell counts.
|EPrint Type:||Conference paper, poster, etc.|
|Type of presentation:||Paper|
|Keywords:||Colloquium of Organic Researchers; COR; dairy; milk protein; lactose; diets; milk quality|
|Subjects:|| Animal husbandry > Production systems > Dairy cattle|
Animal husbandry > Feeding and growth
|Research affiliation:|| UK|
UK > Institute of Grassland and Environmental Research (IGER)
UK > Colloquium of Organic Researchers (COR) > COR 2002
|Deposited By:||Powell, Ms Jane|
|Deposited On:||20 Oct 2006|
|Last Modified:||12 Apr 2010 07:33|
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