Incidence rate of clinical bovine mastitis in selected smallholder dairy farms in Gondar town, Ethiopia

Almaw, Gizat; Molla, Wassie; Melaku, Achenef

doi:10.4314/evj.v16i1.8

Cited by 11 publications

(6 citation statements)

References 9 publications

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“…This nding corresponds with [20], who found that breed had a signi cant effect on the prevalence of mastitis. The results were comparable to previous studies [21,12] Mastitis prevalence among breeds, on the other hand, may indicate variations in management rather than an actual genetic difference [9].…”

Section: Discussionsupporting

confidence: 88%

Prevalence and Associated Risk Factors of Bovine Mastitis in and Around Jigjiga, Somali Region, Ethiopia

Omer,

Mahamed,

Osman

et al. 2024

Preprint

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Background: Mastitis is a multi-etiological, complicated disease characterized by an inflamed of the mammary gland parenchyma caused by microbes, most commonly bacterial that infiltrate the udder, proliferate, and create toxins that harm the mammary gland. METHODS: A cross-sectional study on lactating cattle was undertaken from December 2019 to July 2020 to investigate the prevalence and possible risk factors of bovine mastitis in and around Jigjiga. RESULTS: At the individual level, the total incidence of mastitis was determined to be 27.2%. Clinical and subclinical mastitis were found in 4.8% and 22.4% of individual cows, respectively. It was also demonstrated that there was an association between mastitis and breeds (OR = 0.13, CI = 0.05-0.32), different age groups (OR = 0.27, CI = 09-0.77), lactation stages (OR = 4.40, CI = 1.64-11.8), parities (OR = 0.15, CI = 0.05-0.42), history of previous mastitis (OR = 10.13, CI = 4.11-24.9), and Husbandry (OR = 0.06, CI = 0.02-0.20), which all had statistically significance (P<0.05) impact on the current prevalence of bovine mastitis in the study area. CONCLUSIONS: As the results show a higher prevalence of mastitis and a substantial association between the risk factors and the mastitis in the study area, immediate control measures are required.

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Section: Discussionsupporting

confidence: 88%

Prevalence and Associated Risk Factors of Bovine Mastitis in and Around Jigjiga, Somali Region, Ethiopia

Omer,

Mahamed,

Osman

et al. 2024

Preprint

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“…Nonetheless, the current incidence rate is much higher than a previous nding of 21.26 cases per 100 cow years at risk in Gondar town in northern Ethiopia [25]. The higher incidence rate in the present study may be related to a longer observation period of the cows and a larger sample size compared to a sixmonth follow-up by Almaw and his co-researchers.…”

Section: Discussioncontrasting

confidence: 73%

Incidence rate, risk factors and bacterial causes of clinical mastitis on dairy farms in Hawassa city, southern Ethiopia

Abebe

Markos²,

Abera

et al. 2022

Preprint

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Mastitis is the most common disease of dairy cattle worldwide causing economic losses due to reduced yield and poor quality of milk. It is of particular concern in Ethiopia, where effective prevention and control practices are lacking. The objective of the present prospective longitudinal study was to estimate the incidence rate clinical mastitis (CM), identify the risk factors, isolate the bacterial agents and determine the risk of recurrence. For this purpose, a total of 217 lactating cows were followed-up every two weeks from calving to drying off or the end of the study period. Of these, 79 (36.41%) developed CM, of which 23% had recurrent infection in the same or a different quarter. The overall incidence rate of CM was found to be 83.72 (95% CI: 63.2 to 98.2) cases per 100 cow-years at risk. In the multivariable Cox regression model, the risk of CM was found to be significantly (p < 0.05) higher in multiparous cows (HR = 1.96), in cows with a history of mastitis (HR = 2.04), in cows that had severely keratinized teat end condition (HR = 7.72) and in cows kept in poorly cleaned barns (HR = 1.89). The pathogenic bacteria isolated from mastitis positive cows were Staphylococcus aureus (28.1%), E. coli (21.1%), Bacillus spp. (14%), Streptococcus spp. (14%), Coagulase Negative Staphylococcus (12.3%), other coagulase positive Staphylococcus spp. (5.3%), Enterobacter spp. (3.5%), Klebsiella spp. (1.8%), Corynebacterium spp. (1.8%), Actinobacillus spp, (1.8%) and Proteus spp. (1.8%). The high incidence rate of CM in the present study shows that the disease spreads rapidly and can be responsible for a significant economic loss to milk producers in the study area. Therefore, raising awareness among dairy farmers, early detection and treatment of cases, post milking teat disinfection, improvement of the hygienic status of cows and barns, use of dry cow therapy, and culling of chronic cases are recommended as viable measures to prevent and control clinical mastitis in the study area.

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“…The prevalence of sub-clinical mastitis (66.7%) was found to be higher compared to studies done in Ethiopia (52.3% -34.9%) [15,16], Kenya (59.5%) [17], Egypt (40%) [18], Uganda (37%) [19] and Tanzania (53.2%) [20]. The results were comparable to the ones found in Ethiopia [21] which found a prevalence of 61.1%. However, the results were lower than those reported in Nigeria (85.5%) [22], Ethiopia (72.7%) [23].…”

Section: Discussionsupporting

confidence: 44%

Occurrence of Antibiotic Resistance in Bacteria Isolated from Milk of Dairy Cows in Small-Holder Farms in Juja Sub-County, Kenya

Kagira,

Ngotho,

Mugo

et al. 2022

AJRAVS

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Sub-clinical mastitis (SCM) remains a serious hindrance to small-holder dairy farms in Kenya. A cross-sectional study was conducted to determine the risk factors associated with occurrence of SCM and antibiotic resistance in smallholder dairy farms in a peri-urban set-up area of Juja Subcounty, Kenya. Milk samples was obtained from 120 lactating dairy cows in 60 farms and screened for SCM using California mastitis test (CMT). Positive CMT samples were cultured and bacteria identification was done using standard methods. A questionnaire survey was administered at the household level to assess the risk factors associated with SCM. Sensitivity of the Staphylococcus aureus and Escherichia coli isolated from milk against commonly used antibiotics was determined using disc diffusion method. The prevalence of SCM at cow and udder level was found to be 66.7% and 61.3%, respectively. The highest prevalence of SCM was in Kalimoni (88.8%), Murera (82.7%) and Witeithe (71.4%) wards. The least affected area being Juja (60%) and Theta (44.4%) wards. Sub-clinical mastitis was significantly higher (p=0.007) in Friesian (74.1%) and Guernsey (66.7%) breeds as compared to the indigenous breed (53.8%). Cows with parity of four and above had higher (p=0.001) prevalence of SCM (73.7%) as compared to those of lower parity stage.

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Incidence rate of clinical bovine mastitis in selected smallholder dairy farms in Gondar town, Ethiopia

Cited by 11 publications

References 9 publications

Prevalence and Associated Risk Factors of Bovine Mastitis in and Around Jigjiga, Somali Region, Ethiopia

Prevalence and Associated Risk Factors of Bovine Mastitis in and Around Jigjiga, Somali Region, Ethiopia

Incidence rate, risk factors and bacterial causes of clinical mastitis on dairy farms in Hawassa city, southern Ethiopia

Occurrence of Antibiotic Resistance in Bacteria Isolated from Milk of Dairy Cows in Small-Holder Farms in Juja Sub-County, Kenya

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