Effects of management practices on yield and quality of milk from smallholder dairy units in urban and peri-urban Morogoro, Tanzania

A longitudinal study design was used to assess the management, chemical composition of cows’ milk and quantify the microbial load of raw milk produced at farm level. Data were collected between December 2010 and September 2011 in Morogoro municipality. Milk samples were collected once every month an...

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Bibliographic Details
Published in:Tropical animal health and production 2014-10, Vol.46 (7), p.1177-1183
Main Authors: Gillah, Kejeri A, Kifaro, George C, Madsen, Jorgen
Format: Article
Language:English
Subjects:
Animals
Bacteria - isolation & purification
Biomedical and Life Sciences
breeds
Cattle - physiology
coliform bacteria
Colony Count, Microbial - veterinary
crude protein
Dairy cattle
dairy cows
Dairying - economics
Dairying - organization & administration
experimental design
farms
Fats - analysis
Female
human resources
income
Life Sciences
Longitudinal Studies
microbial load
Milk
Milk - chemistry
Milk - microbiology
Milk - standards
milk fat
milk quality
milk yield
people
plate count
Proteins - analysis
Rainy season
raw milk
Regular Articles
Seasons
stocking rate
Tanzania
total solids
Veterinary Medicine/Veterinary Science
wet season
Zoology
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Summary:A longitudinal study design was used to assess the management, chemical composition of cows’ milk and quantify the microbial load of raw milk produced at farm level. Data were collected between December 2010 and September 2011 in Morogoro municipality. Milk samples were collected once every month and analysed for butter fat (BF), crude protein (CP), total solids (TS) and solids non-fat (SNF). Total bacterial count (TBC) and coliform counts (CC) were normalized by log transformation. The average milk yield was 7.0 l/day and was not influenced by feeding systems and breeds. Dairy cows owned by people who had no regular income produced more milk than government employees and retired officers. Means of BF, TS, SNF and CP were similar in different feeding systems. Wet season had significantly higher TBC (5.9 log₁₀ cfu/ml) and CC (2.4 log₁₀ cfu/ml) but feeding systems had no effect. Stocking density influenced TBC but not CC. It can be concluded that dairy cows produced low milk yield and its quality was poor.
ISSN:0049-4747
1573-7438
DOI:10.1007/s11250-014-0624-3