physical examination of milk
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White (Calcium casinate)Opaque FluidFaintly Sweetish (Lactose)Cow’s Milk (Yellow, Lactochrome)Salty Milk (End or Start of Lactation)
CharactersDescription
General Appearance
Note whether clear or any visible dirt or foreign matter
OdorNormal, None, Very Mild or Strong, Manure, Fishy, Turnip, Onion. Heat at 60 0C to find odor.
ColorWhite, Light Yellow, Reddish or Bluish, or any abnormal Color
ConsistencyNormal, Watery, Thick, Slimy & Shredded
SedimentSee Sediment at Bottom of Container
DefectReason
Cow-like or Salty TasteDuring Late Lactation, Incomplete last milking, Satph, Strepto & Coli aerogenes groups.
Fishy MilkDuring Late Lactation, due to rusty Metals & Fish Meal Feeding
Rancid MilkDuring Late Lactation, Incomplete last milking, Satph, Strepto, Coli aerogenes groups & Butyric Acid Bacteria
Slow Creaming MilkAt end of Lactation & Due to feeding Carrots and turnip
Premature CurdlingDue to Digestive, Udder diseases, in Advance Pregnancy & Feeding of Sour Brewer's Grain
Gritty or Sandy MilkFeeding Ration high in minerals
Bloody & Flaky MilkMastitis
Bitter MilkPeptonising &Gas forming Bacteria, Decomposed Feed, Turnip Leaves, Raw potatoes, Wild Mustard, Vetches (Vicia sativa), Moulds straw, Start & End of Lactation
Viscid, Ropy or Stringy Milk
Lactis viscous
Soapy MilkProteolytic & Lipolytic Bacteria
Failure to ButterDeficiency of Acidophilic Bacteria, Excess of Peptoniser, alkali forming bacteria, Yeast & Fungi
Stable, Turnip, Beet like taste & odor
Certain species of bacteria.
Blue MilkBaccilus cyanogens
Red MilkBaccilus prodigosus Lactis erythrogenes
Sarcina rosaea
Yellow or Orange Milk
Baccilus synxanthus Sarcina lutea
Sarcina flava
Yellowish green Milk
Baccilus pyocyaaneus
Greenish Yellow Milk
Baccilus flourescenes
Violet color MilkBaccilus violaceus Baccilus lividua
Feed & WeedDue to certain feed.
OxidizedMetallic contaminations, Exposure to Sunlight ,
BarneyUnhygienic conditions
SaltyMastitis
MaltyDue to High bacterial Count
High Acid Sour
Due to High bacterial Count
ForeignDue to Medicinal & Parasitic residue,