Differential cell counts in goatâs milk

D. Sierra; A. SÃ¡nchez; J.C. Corrales; A. Contreras

Differential cell counts in goatâs milk

In: Milking and milk production of dairy sheep and goats

Authors:

D. Sierra

D. Sierra Laboratorio Agrario y de Medio ambiente, ConsejerÃa de Agricultura, Medio Ambiente y Agua, El Palmar, Murcia, Spain

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A. SÃ¡nchez

A. SÃ¡nchez Enfermedades infecciosas, Facultad de Veterinaria, Universidad de Murcia, 30001 Espinardo, Murcia, Spain

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J.C. Corrales

J.C. Corrales Enfermedades infecciosas, Facultad de Veterinaria, Universidad de Murcia, 30001 Espinardo, Murcia, Spain

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A. Contreras

A. Contreras Laboratorio Agrario y de Medio ambiente, ConsejerÃa de Agricultura, Medio Ambiente y Agua, El Palmar, Murcia, Spain

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Type:: Chapter

Pages:: 178â180

DOI:: https://doi.org/10.1163/9789004683877_033

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Summary

Goats (n=41) from a commercial dairy herd (Murciano-granadina breed) were studied throughout lactation. Milk samples (772) were studied every 21 days for bacteriological status, somatic cell counts and differential cytology. Prevalence of infection was 5.7%. Most of the cells were identified (99.1%), probably due to the fixation system (in which milk was collected directly into cold formalin). The main group involved was PMN (74%), both in infected and uninfected halves. Only 5.6% of the total consisted of epithelial cells which decreased significantly with infection (5.7% versus 1.2%; p<0.01). Even the uninfected halves yielded a significant rate (74%) of PMN. Cytoplasmic particles accounted for up to 35% in the milk of the uninfected halves, decreasing, but not significantly, in the infected halves (31%). Halves with SCC lower than 100 x 10â yielded a high percentage of particles (up to 61%). In non specific DNA stained smears, cytoplasmic particles may be mistakenly counted as somatic cells; therefore, methods used for cows or sheep should be validated before applied to goats.

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Milking and milk production of dairy sheep and goats

E-Book ISBN:: 9789004683877

Publisher:: Wageningen Academic

Print Publication Date:: 01 Jan 1999

Subjects
- Life Sciences
  - General
  - Animal & Veterinary

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Differential cell counts in goatâs milk

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Milking and milk production of dairy sheep and goats

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Differential cell counts in goatâs milk