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Cell counts in bulked milk supplies from dairy farms of northern Nigeria

Numerations Cellulaires Dans Des Laits De Melange Provenant De Fermes Laitieres Du Nigeria Du Nord

Conteo De Celulas En Existencias Globales De Leche En Hatos Lecheros En El Norte De Nigeria

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Summary

Somatic cells in 596 milk samples collected from bulked supplies of 3 northern Nigeria dairy farms were counted by an electronic method following a standard method for the preparation of the milk samples. Mean somatic cell counts per ml indicating low level of infection were 158,597, 166,742 and 155,032 for the 3 farms, without any significant differences. Mean somatic cell counts per ml indicating herd mastitis averaged 354,768±66,348 and the pathogenic organisms isolated wereEscherichia coli andStaphylococus aureus. Counts useful for future regular monitoring of somatic cells in bulked milk supplies in northern Nigeria are presented.

Résumé

Les cellules inflammatoires ont été dénombrées dans 596 échantillons de laits de mélange, venant de 3 fermes de Nigeria du Nord, au moyen d'un procédé électronique, en suivant une méthode normalisée pour la préparation des échantillons.

Les moyennes des numérations (par ml) indiquant un bas niveau d'infection étaient de 158 597–166 742–155 032 pour les 3 fermes, sans différence significative.

Les moyennes révélatrices d'une mammite dans le troupeau atteignaient 354 768±66 348 et les microorganismes pathogènes isolés étaientEscherichia coli etStaphylococcus aureus.

Des normes chiffrées, utiles pour la future surveillance des laits de mélange en Nigeria du Nord, sont indiquées.

Resumen

Se llevó a cabo un contéo de células somáticas en existencias globales de leche, mediante un método electrónico siguiendo un patrón determinado en la preparación de las muestras de leche. El trabajo se realizó en 3 hatos lecheros en el norte de Nigeria. El contéo medio de células somáticas indicativo de niveles bajos de infección fué de 158.597 166.742 y 155.032 en los tres hatos respectivamente. No hubo diferencias significativas. Contéos medios indicativos de mastitis promediaron 354.768+66.348 y los patógenos aislados fueronEscherichia coli yStaphylococcus aureus. El trabajo incluye un patrón de contéos útiles, para el examen regular de existencias globales de leche en el norte de Nigeria.

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Lombin, L.H., Esievo, K.A.N. Cell counts in bulked milk supplies from dairy farms of northern Nigeria. Trop Anim Health Prod 11, 171–174 (1979). https://doi.org/10.1007/BF02237795

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  • DOI: https://doi.org/10.1007/BF02237795

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