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Academic Web Journal of Agricultural Research  (AWJAR)
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Academic Web Journal of Agricultural Research 
Volume 2 issue 1 pp 014-020 February, 2017

Research Article

Occurrence of Caprine Mastitis and its Etiological Agents and Associated Selected Risk in Mid Lactating Goats in the Oodi Extension Area of Kgatleng District, Botswana

Wazha Mugabe1,3, Shalaulani James Nsoso1, Gaolebale Segolame Mpapho1, John M Kamau1, Wameostsile Mahabile2, Assar Ali Shah3*, Mudasir Nazar3, Irfan Ullah Khan3, Niaz Ali Kaka3 and Iftikhar Ali Shah4

1Department of Animal Science and Production, Botswana University of Agriculture and Natural Resources, Private Bag 0027, Gaborone, Botswana.
2Department of Agricultural Research, Private Bag 0033, Gaborone, Botswana.
3College of Animal Science and Technology, Nanjing Agricultural University, Weigang 1, Nanjing 210095, P. R China.
4Department of Zoology, Gomal University D. I. Khan, Pakistan.

*Corresponding author. E-mail: assaralishah@yahoo.com.



The negative impacts of mastitis on milk production pose a challenge to the profitability and sustainability of small scale dairy enterprises, thereby affecting the social welfare of farmers. The prevalence and epidemiological profile of Caprine mastitis in Botswana remains undocumented. The objective of this study was to determine the prevalence of Caprine mastitis in mid lactating goats in the Oodi extension area of Kgatleng District, Botswana. A cross-sectional study was conducted in which a total of one hundred and sixty-three (163) lactating goats from 17 flocks were purposefully selected based on the use of goat milk and stage of lactation (45 to 60 days post-partum). All goats were subjected to clinical examination and Somatic Cell Count Test (SCC). Samples with SCC above the threshold of 0.5×106 cells/ml were classified to be infected with sub-clinical mastitis. Each milk sample (0.5 ml) declared positive from Nucleo-counter SCC was further subjected to bacteriological tests to isolate for bacteria. The overall prevalence rate of mastitis was 17.8% (95% CI), with a significantly (P<0.05) higher prevalence rate for sub-clinical (13.5%) than clinical mastitis (4.29%). Most (93%) of the cases of mastitis were due to Coagulase Negative Staphylococci (CNS). Positive cases were also isolated for Staphylococcus aureus (83%), Streptococcus species (62%), Escherichia coli (48%), Bacillus species (41%) and unidentified gram negative bacteria (51%). Caprine mastitis was significantly (P>0.05) associated to risk factors; parity class, breed, housing floors, flock size and suckling litter number. Sub-clinical mastitis was four times more prevalent than the clinical form. The current study showed that the probabilities of the disease occurring was high in goat under poor management where the environmental and host risk factors are common sources for Coagulase Negative Staphylococci (CNS) and S. aureus. There is need to strengthen capacity building in employing basic mastitis control and prevention measures, especially in the informal milk value chain where milk does not follow any standard of formal hygiene and safety testing.

Key words: Caprine mastitis, occurrence, prevalence, risk factors, somatic cell count.

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