Effects of Dairy Cows Management Systems on the Physicochemical and Nutritional Quality of Milk and Yogurt, in a North-Eastern Romanian Farm

Roxana Nicoleta Rațu, Petru Marian Cârlescu, Marius Giorgi Usturoi, Florin Daniel Lipșa, Ionuț Dumitru Veleșcu, Vlad Nicolae Arsenoaia, Andreea Mihaela Florea (), Marius Mihai Ciobanu, Răzvan-Mihail Radu-Rusu (), Alina Narcisa Postolache and Daniel Simeanu
Additional contact information
Roxana Nicoleta Rațu: Department of Food Technologies, Faculty of Agriculture, “Ion Ionescu de la Brad” University of Life Sciences, 3 Mihail Sadoveanu Alley, 700489 Iasi, Romania
Petru Marian Cârlescu: Department of Food Technologies, Faculty of Agriculture, “Ion Ionescu de la Brad” University of Life Sciences, 3 Mihail Sadoveanu Alley, 700489 Iasi, Romania
Marius Giorgi Usturoi: Department of Animal Resources and Technology, Faculty of Food and Animal Sciences, “Ion Ionescu de la Brad” University of Life Sciences, 8 Mihail Sadoveanu Alley, 700489 Iasi, Romania
Florin Daniel Lipșa: Department of Food Technologies, Faculty of Agriculture, “Ion Ionescu de la Brad” University of Life Sciences, 3 Mihail Sadoveanu Alley, 700489 Iasi, Romania
Ionuț Dumitru Veleșcu: Department of Food Technologies, Faculty of Agriculture, “Ion Ionescu de la Brad” University of Life Sciences, 3 Mihail Sadoveanu Alley, 700489 Iasi, Romania
Vlad Nicolae Arsenoaia: Department of Pedotechnics, Faculty of Agriculture, “Ion Ionescu de la Brad” University of Life Sciences, 3 Mihail Sadoveanu Alley, 700489 Iasi, Romania
Andreea Mihaela Florea: Department of Plant Science, Faculty of Agriculture, “Ion Ionescu de la Brad” University of Life Sciences, 3 Mihail Sadoveanu Alley, 700489 Iasi, Romania
Marius Mihai Ciobanu: Department of Food Technologies, Faculty of Agriculture, “Ion Ionescu de la Brad” University of Life Sciences, 3 Mihail Sadoveanu Alley, 700489 Iasi, Romania
Răzvan-Mihail Radu-Rusu: Department of Animal Resources and Technology, Faculty of Food and Animal Sciences, “Ion Ionescu de la Brad” University of Life Sciences, 8 Mihail Sadoveanu Alley, 700489 Iasi, Romania
Alina Narcisa Postolache: Research and Development Station for Cattle Breeding Dancu, 707252 Iasi, Romania
Daniel Simeanu: Department of Control, Expertise and Services, Faculty of Food and Animal Sciences, “Ion Ionescu de la Brad” University of Life Sciences, 8 Mihail Sadoveanu Alley, 700489 Iasi, Romania

Agriculture, 2023, vol. 13, issue 7, 1-20

Abstract: The study’s objective was to investigate changes in the fatty acid composition of cow milk in general and in 80 Romanian Spotted cows’ husbandry and feeding systems in particular (grazing–GC group vs. stabulation–SC group). The ultimate objective was to determine if the changes that happened in the milk also transferred to the finished product. Also, the influence of the quality of raw milk produced by both systems was evaluated when yogurt was made from it. The milk was gathered in May, July and September and used for both the yogurt-making process and the study, which lasted from May to October. In comparison to milk from SC, milk from grazed caws had larger percentages of fat and dry matter throughout the summer (GC) season. Moreover, pasture-based rations (MGC) contained more PUFA than MCS did. Data research revealed that not only do factors such as milk origin and initial quality have a substantial impact on yogurt quality parameters, but also technologies such as milk fermentation have a considerable impact on the fatty acid profile of yogurt. In comparison to cows kept permanently in stables, grazed cows (MGC) had fat with a lower concentration of saturated fatty acids and a higher proportion of rumenic, vaccenic and oleic acids (MSC). When fresh milk is processed into yogurt and other dairy products, the fatty acid profiles alter, with saturated fatty acids predominating over unsaturated ones. The findings show that pasture-fed cows have a positive impact on milk quality, particularly in terms of fatty acid profile, as well as on yogurt’s ultimate nutritional and dietary quality.

Keywords: cows feeding; milk; yogurt; fatty acids; quality (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
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