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Extensive countrywide field investigation of somatic cell counts and total bacterial counts in bulk tank raw milk in goat herds in Greece

Published online by Cambridge University Press:  16 August 2021

Daphne T. Lianou
Affiliation:
Veterinary Faculty, University of Thessaly, 43100Karditsa, Greece
Charalambia K. Michael
Affiliation:
Veterinary Faculty, University of Thessaly, 43100Karditsa, Greece
Natalia G.C. Vasileiou
Affiliation:
Faculty of Animal Science, University of Thessaly, 41110Larissa, Greece
Efthimia Petinaki
Affiliation:
University Hospital of Larissa, 41110Larissa, Greece
Peter J. Cripps
Affiliation:
Institute of Veterinary Science, University of Liverpool, NestonCH64 7TE, UK
Katerina Tsilipounidaki
Affiliation:
University Hospital of Larissa, 41110Larissa, Greece
Angeliki I. Katsafadou
Affiliation:
Veterinary Faculty, University of Thessaly, 43100Karditsa, Greece
Antonis P. Politis
Affiliation:
Veterinary Faculty, University of Thessaly, 43100Karditsa, Greece
Nikos G. Kordalis
Affiliation:
Veterinary Faculty, University of Thessaly, 43100Karditsa, Greece
Katerina S. Ioannidi
Affiliation:
Veterinary Faculty, University of Thessaly, 43100Karditsa, Greece
Dimitris A. Gougoulis
Affiliation:
Veterinary Faculty, University of Thessaly, 43100Karditsa, Greece
Constantina Trikalinou
Affiliation:
University Hospital of Larissa, 41110Larissa, Greece
Denise C. Orfanou
Affiliation:
Veterinary Faculty, University of Thessaly, 43100Karditsa, Greece
Ilektra A. Fragkou
Affiliation:
Veterinary Faculty, University of Thessaly, 43100Karditsa, Greece
Dimitra V. Liagka
Affiliation:
Veterinary Faculty, University of Thessaly, 43100Karditsa, Greece
Athina Tzora
Affiliation:
Faculty of Agriculture, University of Ioannina, 47100Arta, Greece
Marzia Albenzio
Affiliation:
Department of Sciences of Agriculture, Food and Environment (SAFE), University of Foggia, 71122Foggia, Italy
Vasia S. Mavrogianni
Affiliation:
Veterinary Faculty, University of Thessaly, 43100Karditsa, Greece
Mariangela C. Caroprese
Affiliation:
Department of Sciences of Agriculture, Food and Environment (SAFE), University of Foggia, 71122Foggia, Italy
George C. Fthenakis*
Affiliation:
Veterinary Faculty, University of Thessaly, 43100Karditsa, Greece
*
Author for correspondence: George C. Fthenakis, Email: gcf@vet.uth.gr

Abstract

Dairy goat farming is an important sector of the agricultural industry in Greece, with an annual total milk production exceeding 450 000 l and accounting for over 25% of all goat milk produced in the European Union; this milk is used mainly for cheese production. Despite the importance of goat milk for the agricultural sector in Greece, no systematic countrywide investigations in the bulk-tank milk of goats in Greece have been reported. Objectives were to investigate somatic cell counts (SCC) and total bacterial counts (TBC) in raw bulk-tank milk of goat herds in Greece, study factors influencing SCC and TBC therein and evaluate their possible associations with milk content. Throughout Greece, 119 dairy goat herds were visited for milk sampling for somatic cell counting, microbiological examination and composition measurement. Geometric mean SCC and TBC were 0.838 × 106 cells ml−1 and 581 × 103 cfu ml−1, respectively. Multivariable analyses revealed annual frequency of check-ups of milking system and total milk quantity per goat (among 53 variables) to be significant for increased SCC; no factor emerged (among 58 variables) to be significant for increased TBC. Negative correlation of SCC with total protein was found; mean total protein content in the bulk-tank milk in herds with SCC >0.75 × 106 cells ml−1 was 5.1% lower and in herds with SCC >1.5 × 106 cells ml−1, it was 7.8% lower.

Type
Research Article
Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press on behalf of Hannah Dairy Research Foundation

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