Cattle Flashcards
What produces progesterone
Corpus luteum
Develops at site of ovulation
Corpus luteum
Ovarian structure that contains the egg.
Follicle
Produces estrogen
Follicle
Produced by follicle. Induces estrus behavior. Initiates LH.
Estrogen
Secreted by anterior pituitary gland and involved in ovulation
Luteinizing hormone
Largest follicle. becomes the ovulatory follicle
Dominant follicle
Produced by CL. Inhibits uterine contractions and maintains pregnancy
Progesterone
Causes regression of CL
Prostaglandins
when should heifers be bred
15 months
how long of a gestation
9 months
how can pregnancy be detected
rectal palpation, progesterone in milk and blood.
calves are born with what type of digestion
monogastric
calves must have colostrum within
12 hours
name of the structure that allows the milk to bypass the rumen, reticulum and omasum and flow directly into abomasum
esophageal groove
function/lining of reticulum
honeycomb, regurgitation
function/lining of omasum
pages of book, squeeze crush and grind
function of abomasum
true stomach
sac like structures where milk is synthesized and secreted
alveoli
clusters of alveoli
lobules
tubules for draining milk
duct system
raw milk may contain 3 things
bacteria, TB, brucellosis
breed with the highest fat in milk
jersey
breed that produces the largest yield
holstein
prehensile organ
tongue.. grasp food
all deciduous teeth by this age..
5 years
torus linguae
base of tongue, fat pad
weight bearing digits and non-weight bearing digits
bearing- 3&4, not bearing- 2&5
small metacarpal
metacarpal 5
which metacarpals are fused
3 and 4
castrated male
steer
female that hasnt given birth
heifer
dehorned
polled
ready to be milked
freshened
female that has given birth
cow
cow ready to calve
springer
intact male
bull
female twin to male
free martin
practices that prevent the spread of disease
biosecurity
to remove from the herd
cull
cow sixty days before calving
dry
number of WBC per ml of milk
somatic cell count
small canal located in the end of each teat
streak canal
formulated ration
total mixed ration
time required after last drug treatment
withdrawal time
point of balance
shoulder
flight or fight depends on 3 things
genetics, handling, contact with people
most aggressive bovine
dairy
when do bulls get aggressive
18-24 mo
breeds that tend to be more nervous
beef
few distractions that cause cattle to balk
shadows. chains. high contrast. people.
why would tail restraint be used
prevent kicking
casting means to..
lay down/ recumbency
where are ruminations heard
L side paralumbar fossa
normal rate of ruminations per minute
1-2/min
normal shape of abdomen
pear
TPR
100.4 - 103.1
40-80 bpm
10-30 rr
