Somatic cell count increases in goat milk due to an infection, but also to physiological factors in healthy animals. It makes it quite difficult to maintaining below the thresholds in some countries.
Dear Macias,
Counts of Somatic cells increase in goat milk due to Mastitis (sub clinical or chronic). You can use the counts in cow's milk as indicator :
1. Numbers of WBC in Cow's milk from Healthy cow are about 300000 cells.
2. In subclinical mastitis are between 300000-900000 cells.
3. In chronic mastitis reach to more than 900000 cells.
Best regards,
Gaber El-Baradei
Hi D. Sanchez Macias
Your problem in discussed in two of my reviews (See SRR, 2010 and in press).
Dear Macias, You have to precise the type of threshold you means. If it is a legal one, No; all country and all dairy plant can use the threshold they want according to milk price regulation or more technical constraint. In France, even with high controlled farmers, we only decided to apply a national regulation and penalties are due if you give milk exceeding one million cells/ml but thus threshold was statistically determined but not technically?;
If you mean technological limits; As written by Nissim in their review, such a level is able to produce differences in clotting properties and modification of cheese rate but generally at the level of dairy plant, the manufacturers is able to compensate and generally, the cheese produced remains of constant quality even in Specific brand under sign of quality and certified origin where Goats cheeses are tasted also and analyzed to enter in the regulation limits, it is very difficult to see differences due to SCC levels.
If the origin of such a high level of cells in milk in not completely explained, it is always possible to limit SCC level. One of the main factor (excepted infectious reasons, is milking (as well rate and intervals as quality of milking (hygiene, machine milking settling, over milking...). The second one id also genetic. In high yielding goats, the rate of exfoliation of epithelial cells increase and theses celles are not somatic one and do not signify the same things. We now are working on a way to separate this kind of cells in order to separate bad management origin and physiological/genetical ones. best regards
Nissim Silanikove is a world authority on goat milk and mastitis.
Read his reviews!
Somatic cells counts and antibiotic withdrawal periods are often very different in goats compared to cows.
Joanne Karzis (with her colleagues) has also done some excellent research.
See Onderstepoort Journal of Veterinary Research: (2007):
74: 161-167
74: 217-222
74:243-249
74:261-288
and in 2008:
75::255-260.
You can email Joanne at : [email protected]
Regards,
Ned Donkin
Dear Colleague,
here a paper which summarize the results obtained in the following EU research prenormative project
https://www.researchgate.net/project/Strategies-de-controle-en-ferme-des-comptages-de-cellules-somatiques-du-lait-de-brebis-et-de-chevre-FAIR950881
here the paper
https://www.researchgate.net/publication/230806012_Somatic_cells_of_goat_and_sheep_milk_Analytical_sanitary_productive_and_technological_aspects
Article Somatic cells of goat and sheep milk: Analytical, sanitary, ...
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