Influence of different milking methods on milk quality based on somatic cell count and basic composition.

Autor:	Zahumenská J; Department of Animal Nutrition and Husbandry, University of Veterinary Medicine and Pharmacy, Košice, Slovak Republic., Zigo F; Department of Animal Nutrition and Husbandry, University of Veterinary Medicine and Pharmacy, Košice, Slovak Republic., Kováčová M; Department of Hygiene, Technology and Health Food Safety, University of Veterinary Medicine and Pharmacy, Košice, Slovak Republic., Ondrašovičová S; Department of Biology and Physiology, University of Veterinary Medicine and Pharmacy, Košice, Slovak Republic., Hisira V; University Veterinary Hospital, Clinic of Ruminants, University of Veterinary Medicine and Pharmacy, Košice, Slovak Republic., Mihok T; Department of Animal Nutrition and Husbandry, University of Veterinary Medicine and Pharmacy, Košice, Slovak Republic., Výrostková J; Department of Hygiene, Technology and Health Food Safety, University of Veterinary Medicine and Pharmacy, Košice, Slovak Republic., Farkašová Z; Department of Animal Nutrition and Husbandry, University of Veterinary Medicine and Pharmacy, Košice, Slovak Republic.
Jazyk:	angličtina
Zdroj:	Annals of agricultural and environmental medicine : AAEM [Ann Agric Environ Med] 2024 Jun 27; Vol. 31 (2), pp. 198-204. Date of Electronic Publication: 2024 May 13.
DOI:	10.26444/aaem/187170
Abstrakt:	Introduction and Objective: Correlations between the number of milk somatic cells (SCC), the number of microorganisms, and the content of basic components of milk were studied on five farms (F1-F5) with cows of the same breed, but with different milking systems. Material and Methods: From each farm, 50 Holstein Friesien milk samples were collected once a month (250 samples/month; n=3,000) during March 2022 - February 2023. Samples from farms F1 and F5 were tested for fat, protein, lactose, no fat dry matter content (FTIR spectroscopy), for the SCC (Fossomatic 7), and for the differential cells (Vetscan DC-Q). Results: The highest fat content was confirmed on farm F5 (3.85 ± 1.70%) and F4 (3.82 ± 0.21%) with automatic milking system (AMS). However, from the point of view of protein content, these farms showed slightly lower values (<0.05). F1 did not meet the minimum required amount for fat content (2.84 ± 0.81%) set by the legislation of the Slovakia. The comparison shows that there is not much difference in cell size between healthy cells and mastitis cells. The average size of healthy cells was approximately 8.77 ± 0.49 μm. In the monitored period, the average values determined were at the level of 292,000/mL (5.46 ± 0.72 log10 SCC) in cow milk samples, while for the rest of the year, the values remained at 256,000/mL (5.40 ± 0.80 log10 SCC). F1 was categorized as a positive farm with a high TLC (total milk leucocyte count) concentration (5.58 log10 cells/mL, 406.65 ± 53.80 × 10 3 cells/mL) and a predominant NEU fraction (61%). Farms F2, F4, and F5 were classified as negative farms (TLC was 4.70 ± 0.26 log10 cells/ml). Conclusions: According to the results, the size of SCCs in healthy milk does not differ from SCCs found in mastitis milk. From the results, it can be concluded that the transition to the latest generation of robotic milking method can positively affect milk production and its quality.
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu