8391: The effect of diet on the milk quality of organic dairy cows
(2002) The effect of diet on the milk quality of organic dairy cows. Paper presented at UK Organic Research 2002 Conference, Aberystwyth, 26-28 March 2002; Published in Powell, Jane and et al., , Eds. Proceedings of the UK Organic Research 2002 Conference, page pp. 197-198. Organic Centre Wales, Institute of Rural Studies, University of Wales Aberystwyth.
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Summary
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.
| Document Language: | English |
|---|---|
| Keywords: | Colloquium of Organic Researchers; COR; dairy; milk protein; lactose; diets; milk quality |
| Subject Areas: | Animal husbandry > Production systems > Dairy cattle Animal husbandry Animal husbandry > Feeding and growth |
| Research affiliation: | UK UK > Institute of Grassland and Environmental Research (IGER) UK > Colloquium of Organic Researchers (COR) > COR 2002 |
| Total budget (Euro): | 0 |
| Orgprints ID Number: | 8391 |
| Contact: | OCW, |
| Deposited On: | 20 October 2006 |
| EPrint Type: | Conference paper |
| Published?: | Published |
| Peer Review Status: | Not peer-reviewed |
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