Gangrenous caprine coliform mastitis

Ameh, J. A.; Pb, Addo; Adekeye, J.O.; Gyang, E.O.; Teddek, L.B.; Abubakar, Y.

doi:10.1016/0921-4488(94)90080-9

Cited by 10 publications

(4 citation statements)

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“…Generally, this type of mastitis is associated with the agents Staphylococcus sp. ( Peer and Bhattacharyya, 2007 ; Sabuncu et al, 2015 ), Escherichia coli ( Ameh et al, 1994 ), Bacillus sp. ( Mavangira et al, 2013 ) or by co-infection of bacteria ( Ribeiro et al, 2007 ).…”

Section: Discussionmentioning

confidence: 99%

Distinguishing the milk microbiota of healthy goats and goats diagnosed with subclinical mastitis, clinical mastitis, and gangrenous mastitis

et al. 2022

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Mastitis, mainly caused by bacterial intramammary infections, is the main problem in the breeding of dairy animals. The inflammations of the mammary gland is separated by types of mastitis, being subclinical, clinical, and the most severe, gangrenous mastitis. Here, we used 16S rRNA amplicon sequencing to characterize the bacterial microbiota of goat milk in the different types of goat mastitis caused by bacteria. We used 72 goat milk samples from a region of the state of Minas Gerais in Brazil, of which 12 were from clinically healthy animals, 42 from animals diagnosed with subclinical mastitis, 16 from animals with clinical mastitis, and 2 from animals with gangrenous mastitis. The group related to gangrenous mastitis was the most divergent in terms of alpha and beta diversity. The most abundant genus among samples of the groups was Staphylococcus spp., and we found a high abundance of Mycoplasma sp. in the milk of animals diagnosed with clinical mastitis. The most statistically relevant microorganisms among the groups were Prevotella sp., Ruminococcaceae, Prevotella ruminicola sp., and Providencia sp. We highlight a new association of bacterial agents in gangrenous mastitis among Escherichia sp./Shigella sp. and Enterococcus sp. and provide the second report of the genus Alkalibacterium sp., in milk samples. Only the taxa Staphylococcus sp., Bacteroides sp., Enterococcus, and Brevidabacterium sp., were present in all groups. The superpathway of L-tryptophan biosynthesis metabolites and the sucrose degradation III (sucrose invertase) pathway were the most prominent ones among the groups. In this study, we demonstrate how a rich microbiota of goat milk from healthy animals can be altered during the aggravation of different types of mastitis, in addition to demonstrating new bacterial genera in milk not previously detected in other studies as well as new associations between agents.

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Section: Discussionmentioning

confidence: 99%

Distinguishing the milk microbiota of healthy goats and goats diagnosed with subclinical mastitis, clinical mastitis, and gangrenous mastitis

et al. 2022

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“…Environmental streptococci are responsible for the majority of streptococcal IMI, but S. agalactiae is rarely seen . Gram-negative bacteria have a low prevalence in goats, but can occasionally cause severe clinical mastitis (Hunter 1984;Ameh et al 1994). Streptococci as well as Gram-negative bacteria are to be considered as major pathogens because of their strong effect on SCC (Hall and Rycroft 2007;Min et al 2007).…”

Section: Pathogens Causing Imimentioning

confidence: 99%

Diagnostic tools to monitor udder health in dairy goats

Koop

Nielen

Werven

2012

Veterinary Quarterly

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This article discusses the use of somatic cell count (SCC) and bacteriological culture (BC) as monitoring tools to assess the udder health situation of dairy goats. Both SCC and BC can be applied for milk samples from individual goats or at bulk milk samples. The causative agent of primary concern in the dairy goat industry is Staphylococcus aureus. This pathogen strongly increases goat milk SCC. The SCC is therefore a useful test to detect S. aureus-infected goats. However, several non-infectious factors, most importantly the stage of lactation, also influence SCC, complicating the interpretation of this test. BC has a low sensitivity for the detection of S. aureus-infected goats, but is a valuable tool to obtain information on which bacterial species are responsible for udder health problems in a herd.

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“…Similarly, Okoli et al (2006) reported a prevalence of 19% out of 1848 does presented for slaughter at an abattoir in Imo state, Nigeria. Necrosis of the mammary gland with gangrene formation was reported in a goat with coliform mastitis (Ameh et al, 1994).…”

Section: Introductionmentioning

confidence: 99%

Effect of Clinical Mastitis on the Gross Morphometry and Histopathology of Mammary Glands of Sahel Goats

Abba¹,

Adamu²,

Igbokwe³

et al. 2014

Int. J. Livest. Res.

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The effect of clinical mastitis (unilateral, n = 10 and bilateral, n = 90) on the morphometry of mammary glands of Sahel goats was evaluated in comparison with those of apparently normal glands (n = 20). The mammary glands were examined at slaughter and glandular measurements such as; glandular weight (GW), glandular mid circumference (GMC), glandular longitudinal length (GLL) and glandular teat lengths (GTL) were measured using a measuring tape. Tissue samples of the mammary gland were collected preserved in 10% buffered formalin, processed, embedded, section and stained with H&E and observed under light microscope at various magnifications for presence of pathological lesions. The mean GW was significantly higher (p < 0.05) in normal glands relative to the unilateral and bilateral mastitis. Mean GLL was significantly higher (p<0.05) in unilateral and bilateral mastitis than in normal glands. The mean GMC was not significantly different in all groups while, GTL was significantly higher (p<0.05) in normal mammary glands compared to the unilateral and bilateral mastitic goats. Histopathologic evaluation of the mammary glandular tissue showed acute to sub-acute suppurative inflammatory response (85%) and non-suppurative inflammation (15%). Quantitative histopathology showed varying degrees of vascular responses (hyperemia and congestion), vacuolation of the alveolar cells, epithelial necrosis and fibroplasia in the glandular parenchyma. In conclusion, the results of this study showed that clinical mastitis in the Sahel goat causes a significant alteration in the glandular morphometry and histopathology

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Gangrenous caprine coliform mastitis

Cited by 10 publications

References 0 publications

Distinguishing the milk microbiota of healthy goats and goats diagnosed with subclinical mastitis, clinical mastitis, and gangrenous mastitis

Distinguishing the milk microbiota of healthy goats and goats diagnosed with subclinical mastitis, clinical mastitis, and gangrenous mastitis

Diagnostic tools to monitor udder health in dairy goats

Effect of Clinical Mastitis on the Gross Morphometry and Histopathology of Mammary Glands of Sahel Goats

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