Abstract
The geometric mean cell count of goat’s milk in mid-lactation was 880 × 103 cells/ml and 690 × 103 cells/ ml estimated by the Direct Microscopic Count (DMC) and the Electronic Cell Count (ECC), respectively. The numerous cell fragments in goat milk may have had an influence on the results obtained by the cell counting methods compared.
A highly significant correlation (P < 0.001) existed between the results obtained by the above mentioned methods, and the California Mastitis Test.
If routine surveys are done on milk samples of goats, a CMT score of 1, 2 or 3 should be regarded as normal in the mid-lactation. A higher CMT score may indicate an abnormal condition of the udder. In the diagnosis of mastitis in goats great attention should be paid to the difference in cell content between milk samples from halves of the same udder.
Sammendrag
For geiter i laktasjonens hoveddel var det geometriske midlet av celletallet i melk henholdsvis 880•103 celler/ml ved direkte mikroskopisk celletelling (DMC) og 690•103 celler/ml ved elektronisk celletelling (ECC). Trolig har de tallrike cellefragmenter i geitmelk hatt betydning for resultatene oppnådd ved de metoder for celletelling som ble sammenlignet.
Det var signifikant korrelasjon mellom resultatene fra de ovenfor nevnte metoder og California Mastitis Test (CMT).
Ved rutineundersøkelser av speneprøver fra geit kan CMT reaksjoner på 1, 2 eller 3 i laktasjonens hoveddel betraktes som normalt. I diagnosen av mastitt på geit må det legges stor vekt på innbyrdes forskjell i celleinnholdet mellom speneprøver fra samme jur.
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This work was supported by grants from the Norwegian Agricultural Research Council.
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Pettersen, KE. Cell Content in Goat’s Milk. Acta Vet Scand 22, 226–237 (1981). https://doi.org/10.1186/BF03547512
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DOI: https://doi.org/10.1186/BF03547512