Artificial insemination / artificial breeding. Semen from a high quality bull is artificially placed inside the cow by a trained technician. If she conceives the heifer calf will have the high milk producing genetics of both its parents.
The regular period(every 18-24 days) when a cow comes on heat.
Plastic capsule with sticky backing containing coloured liquid, applied to cows back. It bursts to show the colour when the cow has been constantly ridden by another cow or bull when on heat.
Introducing or injecting semen into the reproductive tract of the cow
Milk solids. The protein and the milk fat component of milk. In NZ farmers are paid per kilogram of milksolids sent to the dairy factory less a cost per litre.
The release of the egg (ovum) from the ovary into the fallopian tubes - necessary before conception can occur.
Planned start of mating
Cows coming into heat, and on heat, piggy back on each other, as a bull does when mating with a cow.
When a cow ovulates without visible signs of being on heat.
When a cow stands to be ridden by other cows or by a bull. Ovulation happens about 14 hours after the end of standing heat.
Special animal safe paint applied to backbone and top of tail to aid heat detection
External lips surrounding the vagina that seals the reproductive tract. When a cow is on heat the vulva becomes moist and expands.