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what is the scientific name for bovines
Bos indicus or Bos taurus
bull
intact male
cow
intact female
calf
young cattle
heifer
immature female
steer
castrated male
calving
giving birth
freshening
giving birth and producing milk; starting a lactation cycle
freemartin
sterile female that is masculinized due to its male twin
polled
naturally hornless
open
cattle not bred
settled
pregnant or successfully bred cattle
veal
calf meat
beef
mature cattle meat
scours
diarrhea
bloat
gas in the rumen
cull
selectively remove an animal from the herd
temperature
100.4’ F - 103.1’ F
pulse
40-80 bpm
respiration
10-30 bpm
milking procedure
wash teats
squirt milk from teats
attach milking unit
remove milking unit
perform postdip
phase 1 of the lactation cycle
calving
occurs weeks 0-12
lasts 10-12 weeks
phase 2 of the lactation cycle
weeks 12-24
phase 3 of the lactation cycle
week 24 to end of lactation
phase 4 of the lactation cycle
dry phase
6-8 weeks before parturition
grade A milk
not over 50’ F
cannot exceed 100,000 before other products are added
cannot exceed 300,000 before pasteurization
cannot exceed 750,000 at any time
no antibiotics
grade B milk
cannot exceed 500,000 at any time
no antibiotics
when should you wean a dairy cow
within 24 hours
when should you wean a beef cow
within 8-11 months
breeding cycle
polyestrous- year round
age of puberty
10-12 months
breeding cycle frequency
every 21 days
estrus cycle length
12-18 days (brahman 3-6 hours)
length of gestation
283 days (about 9-10 months)
lactation period
300 days (10 months)
5 phases of heifer development
sire selection
pre-weaning management
heifer selection at weaning
weaning to breeding
gestation through parturition and rebreeding
5 steps of embryo transferring
superovulation
insemination
collect embryos
embryo ID and selection
embryo transfer
1st stage of parturition
2-6 hours
restless
2nd stage of parturition
30 mins - 4 hours (75 mins)
delivery up to 6-8 hours
3rd stage of parturition
4-6 hours to expel the placenta
fetal dystocia
fetal malformation
stillbirth
fetal size
abnormal presentation
maternal dystocia
pelvic fracture/injury
uterine torsion
rupture of supporting structures
calves should stand within ____ to _____ hours
1-2
calves should be fed colostrum within ___ to ___ hours
12-24