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dc.contributor.authorGulati, Arunima*
dc.contributor.authorGalvin, Norann*
dc.contributor.authorHennessy, Deirdre*
dc.contributor.authorMcAuliffe, Stephen*
dc.contributor.authorO'Donovan, Michael*
dc.contributor.authorMcManus, Jennifer J.*
dc.contributor.authorFenelon, Mark*
dc.contributor.authorGuinee, Timothy P.*
dc.identifier.citationGulati, A., Galvin, N., Hennessy, D., McAuliffe, S., O'Donovan, M., McManus, J., Fenelon, M. A. Guinee, T. P. (2018). Grazing of dairy cows on pasture versus indoor feeding on total mixed ration: Effects on low-moisture part-skim Mozzarella cheese yield and quality characteristics in mid and late lactation. Journal of Dairy Science, 101(10), 8737-8756. doi: 10.3168/jds.2018-14566en_US
dc.description.abstractThis study investigated the effects of 3 dairy cow feeding systems on the composition, yield, and biochemical and physical properties of low-moisture part-skim Mozzarella cheese in mid (ML; May–June) and late (LL; October–November) lactation. Sixty spring-calving cows were assigned to 3 herds, each consisting of 20 cows, and balanced on parity, calving date, and pre-experimental milk yield and milk solids yield. Each herd was allocated to 1 of the following feeding systems: grazing on perennial ryegrass (Lolium perenne L.) pasture (GRO), grazing on perennial ryegrass and white clover (Trifolium repens L.) pasture (GRC), or housed indoors and offered total mixed ration (TMR). Mozzarella cheese was manufactured on 3 separate occasions in ML and 4 in LL in 2016. Feeding system had significant effects on milk composition, cheese yield, the elemental composition of cheese, cheese color (green to red and blue to yellow color coordinates), the extent of flow on heating, and the fluidity of the melted cheese. Compared with TMR milk, GRO and GRC milks had higher concentrations of protein and casein and lower concentrations of I, Cu, and Se, higher cheese-yielding capacity, and produced cheese with lower concentrations of the trace elements I, Cu, and Se and higher yellowness value. Cheese from GRO milk had higher heat-induced flow and fluidity than cheese from TMR milk. These effects were observed over the entire lactation period (ML + LL), but varied somewhat in ML and LL. Feeding system had little, or no, effect on gross composition of the cheese, the proportions of milk protein or fat lost to cheese whey, the texture of the unheated cheese, or the energy required to extend the molten cheese. The differences in color and melt characteristics of cheeses obtained from milks with the different feeding systems may provide a basis for creating points of differentiation suited to different markets.en_US
dc.description.sponsorshipThis study was funded by the Department of Agriculture, Food and the Marine (Dublin, Ireland) Stimulus fund (11/sf/309), and additionally supported by funding from the Dairy Levy Trust Co-Operative Society Limited (Dublin, Ireland).
dc.publisherElsevier for American Dairy Science Associationen_US
dc.relation.ispartofseriesJournal of Dairy Science;
dc.rightsAttribution-NonCommercial-ShareAlike 3.0 United States*
dc.subjecttotal mixed rationen_US
dc.titleGrazing of dairy cows on pasture versus indoor feeding on total mixed ration: Effects on low-moisture part-skim Mozzarella cheese yield and quality characteristics in mid and late lactationen_US
dc.contributor.sponsorDepartment of Agriculture, Food and the Marine, Irelanden_US
dc.contributor.sponsorDairy Levy Research Trusten_US

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