Milk Quality

1 World Milk Production.- 2 Milk Production: Factors Affecting Milk Composition.- 2.1 Introductio.- 2.2 Synthetic And Secretory Tissues Of The Mamary Gland.- 2.2.1 Functional Anatomy.- 2.2.2 Role Of The Milk-producing Cell.- 2.2.3 Milk Flow Within The Udder.- 2.3 The Initiation And Establishment Of Lactation.- 2.4 The Milk Ejection Reflex.- 2.5 Effect Of Breed On Milk Composition And Yield.- 2.6 Role Of Genetics In Milk Production.- 2.7 Effect Of Environment On Milk Composition And Yield.- 2.7.1 Effects Of Season.- 2.7.2 Effects Of Thermal Stress.- 2.8 Dairy Cattle Nutrition And Its Influence On Milk Yield And Composition.- 2.8.1 Dietary Effects On Milk Fat.- 2.8.2 Influence Of Ration On Milk Protein.- 2.9 The Effects Of Milking Management Practices On Milk Quality.- 2.9.1 Milking Interval.- 2.9.2 Milking Rate.- 2.9.3 Frequency Of Milking.- 2.9.4 Milking Routine.- 2.9.5 Cow Preparation And Residual Milk.- 2.10 Influence Of Age And Stage Of Lactation On Milk Component Yield 22 References And Further Reading.- 3 Mastitis And Milk Quality.- 3.1 Introduction.- 3.2 Causative Organisms.- 3.3 Contagious And Environmental Pathogens.- 3.4 Inflammation.- 3.5 Compositional Changes.- 3.6 Milk Losses.- 3.7 Impact On Dairy Products.- 3.8 Control Of Mastitis.- 3.9 Measurement.- 3.10 Summary 37 Further Reading.- 4 Hygienic Quality.- 4.1 Milk Production, Plant Cleaning, On-farm Storage And Collection Of Milk.- 4.1.1 Milk Production.- 4.1.2 Plant Cleaning And Sterilisation.- 4.1.3 Effect Of Storage Time And Temperature On Bacterial Count.- 4.2 Types Of Bacteria.- 4.3 Cooling And Storage Of Milk On The Farm.- 4.4 Collection, Delivery And Reception Of Milk.- 4.4.1 Churn Collection.- 4.4.2 Bulk Collection.- 4.5 Delivery And Storage Prior To Processing 47 4.5.1 Storage Of Milk Prior To Processing.- 4.6 Importance Of Hygienic Quality Of Milk.- 4.7 Measurement Of The Hygienic Quality Of Milk.- 4.7.1 Simple, Rapid Tests For Mesophiles.- 4.7.2 Tests For Cooled Milk.- 4.7.3 Staining And Count