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Abstract
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Article Information:
Study of Campylobacter in Raw Cow Milk in Sokoto State, Nigeria
M.D. Salihu, A.U. Junaidu, A.A. Magaji and Z.M. Rabiu
Corresponding Author: Mohammed Danlami Salihu
Submitted: 2010 April, 06
Accepted: 2010 April, 22
Published: 2010 June, 20 |
Abstract:
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The study was conducted to establish the presence of Campylobacter species, determine its
prevalence and assess some of the epidemiological variables such as breed and season in the distribution of
Campylobacter species in raw cow milk in the state. During October, 2007 and September, 2008, a total of 146
raw milk samples were collected from lactating cows in selected dairy herds in the state. The samples w ere
processed for Campylobacter isolations by inoculating in Preston Enrichment broth and incubated for 48 h at
37ºC, and subsequently spread-plated on mCCDA incubated at 42ºC for 48 h microaerobically. The colonies
were subjected to oxidase reaction, hippurate hydrolysis and sensitivity to nalidixic acid and cephalothin for
identification. The identified isolates were biotyped using the new extended scheme of Lior. Only 7(4.8%) of
the samples were positive and all the positive isolates were identified as C. jejuni and C. jejuni biotype I. The
white Fulani breed of cattle had the highest contamination rate of 2(5.4% ) and there was no association between
the breed and Campylobacter contamination of milk (χ2 = 0.6997, p>0.005). More contamination rate of
3(6.1%) was observed during the dry hot season than other seasons, there was no association between
Campylobacter contamination of milk and the seasons (χ2 = 0.3776, p>0.005). The isolation of C. jejuni from milk in this study is of serious public health concern as C. jejuni is the most common Campylobacter species
implicated in human Campylobacteriosis worldwide.
Key words: Campylobacter, cow, milk, prevalence, seasonal, Sokoto,
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Cite this Reference:
M.D. Salihu, A.U. Junaidu, A.A. Magaji and Z.M. Rabiu, . Study of Campylobacter in Raw Cow Milk in Sokoto State, Nigeria. British Journal of Dairy Sciences, (1): Page No: 1-5.
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ISSN (Online): 2044-2440
ISSN (Print): 2044-2432 |
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