Risk factors associated with the incidence rate of clinical mastitis in smallholder dairy cows in the Dar es Salaam region of Tanzania

The Veterinary Journal
F M KivariaH M Msami

Abstract

Smallholder dairy herds around the Dar es Salaam region of Tanzania supply 86% of raw milk consumed by the city dwellers. Previous studies have indicated that clinical mastitis is an important disease affecting smallholder dairy cows and an 18-month questionnaire-based longitudinal field-study was conducted between July 2003 and March 2005 to elucidate risk factors associated with the incidence. A total of 6057 quarter-level observations from 317 lactating cows on 87 randomly selected smallholder dairy herds were analysed at the quarter and cow level using logistic and Poisson regression models, respectively. At the quarter level, the average incidence rate of clinical mastitis was 38.4 cases per 100 quarter-years at risk whereas at the cow level the incidence rate was 43.3 cases per 100 cow-years at risk. The incidence was significantly (P< or =0.001) associated with cow factors (body condition score, parity, stage of lactation, and udder consistency), housing (floor type) conditions and milking (cow and udder preparation) practices. It was concluded that the extrapolation of the classic ten-point mastitis control plan into smallholder dairy herds should be undertaken cautiously. An integrated approach to dairy extension shoul...Continue Reading

References

Jun 14, 2002·Preventive Veterinary Medicine·Stale Sviland, S Waage
Apr 27, 2004·Journal of Veterinary Medicine. B, Infectious Diseases and Veterinary Public Health·R H MdegelaD M Kambarage
Sep 29, 2004·Tropical Animal Health and Production·E O MungubeM P O Baumann
Nov 25, 2004·Tropical Animal Health and Production·F M KivariaA M Kapaga

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Citations

Apr 1, 2009·Tropical Animal Health and Production·Matios LakewWorku Tigre
Jun 7, 2011·Tropical Animal Health and Production·Stanly Fon TebugMizeck G G Chagunda
May 29, 2013·Tropical Animal Health and Production·Riaz HussainGhulam Muhammad
Oct 9, 2014·Tropical Animal Health and Production·Feng Li YangXiao Shan Li
Aug 8, 2021·Animals : an Open Access Journal From MDPI·Aline Callegari SilvaNilson Roberti Benites

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