Dairy Cattle Production Flashcards
An animal of a recognized Bree is called a
Purebred
Offspring resulting from mating of purebred sure with a grade/native or between dairy animals not purebred
Dairy grade
Genetically unimproved animals that lack dairy characteristics
Scrubs
Biggest dairy cattle breed
Holstein Friesian
Smallest dairy cattle breed
Jersey
Dairy cattle breed that produces the highest volume of milk
Holstein Fresian
Dairy cattle breed known to produce milk high in beta-carotene
Guernsey
Calves are the youngest group of dairy cattle whose age falls from birth to
3months
Group of dairy cattle that falls in the age group of 12 months to breeding size
Yearling heifers
Growing animals
3-12 months
Breedable heifers
Breeding size to calving
Target breeding weight of heifers
250-300kg
Ideal breeding age of heifers
14-15 months of age
Period of time that occurs in sexually mature, non- pregnant female cattle, when they are receptive to mounting or riding activity by a bull or other cows
Estrus
Interval from the first signs of sexual receptivity at estrus to the start of the next estrus
Estrus cycle
Average estrus cycle of dairy cattle
21 days average
Cows come into estrus any time of the year
True
Internal examination of the ovaries via the rectum
Rectal palpation(60 days after successful breeding)
Gestation period of cattle
280-283 days 9months
Ideal calving age of heifers
2years old
Difficulty in calving
Dystocia
The first milk a female produces after the young is born
Colostrum
Must be provided with the first 1-12 hours of life
Colostrum
Return of uterus to its normal size and condition after calving
Uterine involution ave. 45 days voluntary waiting period
Ideal lactation of dairy cows
305 days
A cow that is not presently producing milk
Dry milk
Average dry period of cattle
2months
Ideal calving interval
12 months 365 days
Orientation of housing facility in tropical countries
East-west
Types of housing facility wherein each cow is confined in stanchion or tie stalls
Conventional stall barn
Types of housing facility wherein the cows are free to move among resting, feed and watering areas
Free-stall barn
Performed on calves to prevent the growth of horns by destroying the horn buttons
Disbudding
A type of identification which allows animals to be identified at a distance
Branding
In freeze branding, the branding iron should only be in contact with the animals skin for _____ in ph
One minute
Removal of horn in animals by cutting
Dehorning
Phase of the estruos cycle wherein ovulation occurs
Metestrus
Condition wherein the females do not exhibit regular estrous cycle s
Anestrus
Condition wherein estrous cycles are shorter than 18 days
Irregular estrous cycle
Condition wherein the animal comes to heat at irregular but abnormally short intervals maybe 8-12 days apart with heat lasting 3-4 days
Constant estrus
Most reliable sign that cow heifer is in heat
Standing heat/standing still when mounted
Used in detecting animals in heat wherein a halter device is worn under the chin of a vasectomized bull or androgenized cow
Chin-ball mating device/harness
