primary sign of heat
permits other animals to mount her while she remains standing; "standing heat
secondary signs of heat
mounts other cows, swollen vulva, nervous and restless, roughened tailhead, clear mucus from vagina
bloody discharge
means she has been in heat recently; uncommon
6-12
22% of cows showing heat
12-6
10% showing heat
breed late afternoon
heat in morning
breed in the morning
heat in the afternoon
heatwatch system
electronic heat mount detection system, pressure sensitive switches, catches all cows in heat, exact onset of heat, tells best time to AI
producer
most important part of heat detection
30 min 2-4 times daily
watching for heat
moving and before feeding
observe cows for heat when they are _____ ___ ___ _____
decreased mounting
slippery surfaces may result in _____ _____
unrealistic
heat watching just with your eyes
24 hours
can wait ___ ___ after she has been seen in heat
check
producer must _____ the aids for them to be useful
bovine beacon
lights up when mounted
DETECT-HER tail paint
if rubbed off, probably mounted
gomer bull with paintball
marks cows with paint when he mounts
estrus alert
scratch off patch
KAMAR detector
changes color
pedometry
count her steps; cows in heat walk more
MooMonitor
neck band detects head position; also health monitor; expensive