Physical Examination Of Milk

  • June 2020
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Usama Tayyab DVM UVAS Lahore, Pakistan [email protected] 092-3347523174

White (Calcium casinate) Opaque Fluid Faintly Sweetish (Lactose) Cow’s Milk (Yellow, Lactochrome) Salty Milk (End or Start of Lactation)

Characters

Description

General Appearance

Note whether clear or any visible dirt or foreign matter

Odor

Normal, None, Very Mild or Strong, Manure, Fishy, Turnip, Onion. Heat at 600.C to find odor

Color

White, Light Yellow, Reddish or Bluish, or any abnormal Color

Consistency

Normal, Watery, Thick, Slimy & Shredded

Sediment

See Sediment at Bottom of Container

Defect

Reason

Cow-like or Salty Taste

During Late Lactation, Incomplete last milking, Satph, .Strepto & Coli aerogenes groups

Fishy Milk

During Late Lactation, due to rusty Metals & Fish Meal Feeding

Rancid Milk

During Late Lactation, Incomplete last milking, Satph, Strepto, Coli aerogenes groups & Butyric Acid Bacteria

Slow Creaming Milk

At end of Lactation & Due to feeding Carrots and turnip

Premature Curdling

Due to Digestive, Udder diseases, in Advance Pregnancy & Feeding of Sour Brewer's Grain

Gritty or Sandy Milk

Feeding Ration high in minerals

Bloody & Flaky Milk

Mastitis

Bitter Milk

Peptonising &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 Milk

Proteolytic & Lipolytic Bacteria

Failure to Butter

Deficiency of Acidophilic Bacteria, Excess of Peptoniser, alkali forming bacteria, Yeast & Fungi

Stable, Turnip, Beet like taste & odor

.Certain species of bacteria

Blue Milk

Baccilus cyanogens

Red Milk

Baccilus prodigosus Sarcina rosaea

Yellow or Orange Milk

Baccilus synxanthus Sarcina flava

Yellowish green Milk

Baccilus pyocyaaneus

Greenish Yellow Milk

Baccilus flourescenes

Violet color Milk

Baccilus violaceus

Lactis erythrogenes

Sarcina lutea

Baccilus lividua

Feed & Weed

.Due to certain feed

Oxidized

,Metallic contaminations, Exposure to Sunlight

Barney

Unhygienic conditions

Salty

Mastitis

Malty

Due to High bacterial Count

High Acid Sour

Due to High bacterial Count

Foreign

,Due to Medicinal & Parasitic residue

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