Dairy terminology

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1. Dairy TerminologyDairy Terminology
By John WallaceBy John Wallace

2. CalfCalf
Newly born cowNewly born cow
Compilation: Agricultural Education and Communication Department, California Compilation: Agricultural Education and Communication Department, California
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3. ColostrumColostrum
The first milk secreted after calving. The first milk secreted after calving.
Higher in total solids than normal milk.Higher in total solids than normal milk.
Helps create a healthy immune system. Helps create a healthy immune system.
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4. Babcock TestBabcock Test
Traditional method of measuring the Traditional method of measuring the
butterfat content of milk, which may be used butterfat content of milk, which may be used
for calibrating modern electronic testing for calibrating modern electronic testing
devices.devices.
Compilation: Agricultural Education and Communication Department, California Compilation: Agricultural Education and Communication Department, California
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5. California MastitisCalifornia Mastitis Test Test
An inflammation of the mammary gland An inflammation of the mammary gland
usually caused by bacteriausually caused by bacteria
 A mastitis screening test useful for A mastitis screening test useful for
determining the somatic cell content in milk. determining the somatic cell content in milk.
A reagent is required to react with nuclear A reagent is required to react with nuclear
material of cells present in milk to form a material of cells present in milk to form a
gel.gel.
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6. CWTCWT
CwtCwt. Hundredweight or 100 pounds of milk . Hundredweight or 100 pounds of milk
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7. Days in MilkDays in Milk
The number of days during the The number of days during the
present lactation that the cow has been present lactation that the cow has been
milking, beginning with the last date of milking, beginning with the last date of
calving to the current test date calving to the current test date
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8. Dry cowDry cow + + Dry dateDry date
Any cow that has calved once and is not Any cow that has calved once and is not
producing milk producing milk
First calendar day the cow is not milked First calendar day the cow is not milked
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9. FreemartinFreemartin
Female born twin to a bull calf (about 9 out Female born twin to a bull calf (about 9 out
of 10 of these will not conceive). A sterile of 10 of these will not conceive). A sterile
heifer born twin with a bull.heifer born twin with a bull.
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10. FreshenFreshen
Commonly used to designate the act of Commonly used to designate the act of
calving (parturition); to give birth to a calf calving (parturition); to give birth to a calf
and concurrently initiate lactation.and concurrently initiate lactation.
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11. FreshFresh
A cow that has recently given birth to a calf. A cow that has recently given birth to a calf.
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12. HeiferHeifer
A bovine female less than three years of A bovine female less than three years of
age who has not borne a calf. Young cows age who has not borne a calf. Young cows
with their first calves are sometimes called with their first calves are sometimes called
first-calf heifers first-calf heifers
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13. LactateLactate
To secrete or produce milk To secrete or produce milk
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14. Nurse cowNurse cow
A dairy cow used to supply milk for nursing A dairy cow used to supply milk for nursing
calves, commonly other than her own calves, commonly other than her own
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15. OxytocinOxytocin
A naturally secreted hormone A naturally secreted hormone
that is important in milk letdown that is important in milk letdown
and the contraction of smooth and the contraction of smooth
uterine muscles during uterine muscles during
parturition. parturition.
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16. ReferencesReferences
www.holstein.ca www.holstein.ca
www.animal-lib.org.au www.animal-lib.org.au
news.nationalgeographic.com news.nationalgeographic.com
rwqp.rutgers.edu rwqp.rutgers.edu
www.obriencounty.com www.obriencounty.com
www.nctc.net www.nctc.net
www.ddgs.umn.edu www.ddgs.umn.edu
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