Somatic cell count during first and second lactation in ewes

Authors

  • Kristí­na Tvarožková Slovak University of Agriculture. Faculty of Agrobiology and Food Resources. Department of Veterinary Science. Tr. A. Hlinku 2. 949 76 Nitra. https://orcid.org/0000-0003-4989-6138
  • Vladimí­r Tančin NPPC-Research Institute for Animal Production Nitra. Hlohovecká 2. 95141 Lužianky. Slovak Agricultural University Nitra, Tr. A. Hlinku 2, Nitra https://orcid.org/0000-0003-2908-9937
  • Michal Uhrinčať NPPC-Research Institute for Animal Production Nitra. Hlohovecká 2. 95141 Lužianky. https://orcid.org/0000-0002-5378-617X
  • Lucia Mačuhová NPPC-Research Institute for Animal Production Nitra. Hlohovecká 2. 95141 Lužianky. https://orcid.org/0000-0002-9624-1348
  • Martina Vršková NPPC-Research Institute for Animal Production Nitra. Hlohovecká 2. 95141 Lužianky. https://orcid.org/0000-0002-4206-8404
  • Marta Oravcová NPPC ”“ Research Institute for Animal Production Nitra, Hlohovecká 2, 95141 Lužianky, Slovakia, Tel.: +421376546622

DOI:

https://doi.org/10.5219/1059

Keywords:

Ewes, milk, somatic cell count, farm

Abstract

The aim of this study was to describe the frequency of distribution of ewes in SCC groups on the basis SCS (somatic cells score) per lactation and estimate changes of SCC from 1st lactation on 2nd lactation. The experiment was carried at seven farms in 1st observed period (2016 and 2017) and at eight farms in 2nd observed one (2017 and 2018). Within each of periods the same animals were sampled on their 1st and following 2nd lactation in next year of study, only. Totally 1199 milk samples from 159 ewes and 1653 milk samples from 219 ewes were collected during 1st period and 2nd period, respectively. Milk sampling were taken monthly from April to August in both periods. For evaluation only ewes with minimum three sampling per year (minimum six samples per animal) were included in the study within both periods. The ewes were divided into the five SCC groups on basis of their SCS per lactation: G1 = SCC <200 × 103 cells.mL-1, G2 = SCC ≥200 <400 × 103 cells.mL-1, G3 = SCC ≥400 <600 × 103 cells.mL-1, G4 = SCC ≥600 <1000 × 103 cells.mL-1 and G5 = SCC ≥1000 × 103 cells.mL-1. In total statistically significant impact of parity on SCC in 2nd period was detected (p <0.0001) only. From the farm point of view in 1st period only in two farms and in 2nd one in five farms significant effect of parity was found out. Thus in some farms no increase of SCC from first to second lactation was observed. When comparing the changes in SCC from the first to the second lactation in both first and second periods, 6.92% and 10.96%, respectively ewes moved from SCC group G1 to G5. The significant effect of farm management and parity on SCC was demonstrated.

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Published

2019-05-28

How to Cite

Tvarožková, K. ., Tančin, V. ., Uhrinčať, M. ., Mačuhová, L. ., Vršková, M. ., & Oravcová, M. . (2019). Somatic cell count during first and second lactation in ewes. Potravinarstvo Slovak Journal of Food Sciences, 13(1), 396–401. https://doi.org/10.5219/1059

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