The document defines dairy terminology including: - Colostrum, the first milk produced after calving that is higher in nutrients and helps build immunity. - The Babcock Test, a traditional method to measure butterfat in milk still used to calibrate modern tests. - The California Mastitis Test, which detects somatic cells to determine inflammation in the udder. - CWT, meaning 100 pounds of milk. - Days in Milk, the number of days since the last calving until the current test date.

1. Dairy Terminology By John Wallace

2. Calf Newly born cow Compilation: Agricultural Education and Communication Department, California For more veterinary stuff visit www.techyvety.com

3. Colostrum The first milk secreted after calving. Higher in total solids than normal milk. Helps create a healthy immune system. Compilation: Agricultural Education and Communication Department, California For more veterinary stuff visit www.techyvety.com

4. Babcock Test Traditional method of measuring the butterfat content of milk, which may be used for calibrating modern electronic testing devices. Compilation: Agricultural Education and Communication Department, California For more veterinary stuff visit www.techyvety.com

5. California Mastitis Test An inflammation of the mammary gland usually caused by bacteria A mastitis screening test useful for determining the somatic cell content in milk. A reagent is required to react with nuclear material of cells present in milk to form a gel. Compilation: Agricultural Education and Communication Department, California cFor more veterinary stuff visit www.techyvety.com

6. CWT Cwt . Hundredweight or 100 pounds of milk Compilation: Agricultural Education and Communication Department, California For more veterinary stuff visit www.techyvety.com

7. Days in Milk The number of days during the present lactation that the cow has been milking, beginning with the last date of calving to the current test date Compilation: Agricultural Education and Communication Department, California For more veterinary stuff visit www.techyvety.com

8. Dry cow + Dry date Any cow that has calved once and is not producing milk First calendar day the cow is not milked Compilation: Agricultural Education and Communication Department, California For more veterinary stuff visit www.techyvety.com

9. Freemartin Female born twin to a bull calf (about 9 out of 10 of these will not conceive). A sterile heifer born twin with a bull. Compilation: Agricultural Education and Communication Department, California For more veterinary stuff visit www.techyvety.com

10. Freshen Commonly used to designate the act of calving (parturition); to give birth to a calf and concurrently initiate lactation. Compilation: Agricultural Education and Communication Department, California For more veterinary stuff visit www.techyvety.com

11. Fresh A cow that has recently given birth to a calf. Compilation: Agricultural Education and Communication Department, California For more veterinary stuff visit www.techyvety.com

12. Heifer A bovine female less than three years of age who has not borne a calf. Young cows with their first calves are sometimes called first-calf heifers Compilation: Agricultural Education and Communication Department, California For more veterinary stuff visit www.techyvety.com

13. Lactate To secrete or produce milk Compilation: Agricultural Education and Communication Department, California For more veterinary stuff visit www.techyvety.com

14. Nurse cow A dairy cow used to supply milk for nursing calves, commonly other than her own Compilation: Agricultural Education and Communication Department, California For more veterinary stuff visit www.techyvety.com

15. Oxytocin A naturally secreted hormone that is important in milk letdown and the contraction of smooth uterine muscles during parturition. Compilation: Agricultural Education and Communication Department, California For more veterinary stuff visit www.techyvety.com

16. References www.holstein.ca www.animal-lib.org.au news.nationalgeographic.com rwqp.rutgers.edu www.obriencounty.com www.nctc.net www.ddgs.umn.edu Compilation: Agricultural Education and Communication Department, California For more veterinary stuff visit www.techyvety.com