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What are some advantages of beef?
convert unusable substances to human food (graze on ground unable to be used for farming, make use of by-products, don’t compete directly w humans for grain)
Cattle are not used for ____ purpose
dual
How long is the typical cattle cycle?
8-12 yrs - describes cattle producers decision to grow/decrease herd size
What affects the cattle cycle?
cattle prices
input costs
gestation period
time needed to raise calves to market weight
climate (drought)
What are the 2 sectors of beef production?
cow-calf
fed-cattle
What is cow-calf production?
herd of cows that raise calves until weaning
some stay in herd, feedlot or sold to producers
requires range/pasture forage
What is fed-cattle production?
grain-fed
steers and heifers from cow-calf to slaughter
programs: stocker, preconditioning, backgrounding
final stage = feedlot
What is the average gain (in lbs/day) during fed-cattle production?
4 lbs per day to reach market weight in 90-300 days
What are some ideal standards for Heifer breeding?
6.0 bcs
bred at 65% mature body weight, 1 month before mature cows
can use AI and EPD (expected progeny differences) to increase pedigree of calves
Why do you breed heifers at ideal body score?
if too thin then won’t have energy stores to raise calves, less economical to raise bottle babies
if too overweight then lends to chronic conditions, dystocia, infertility
Why do you breed heifers 1 month prior to mature cows?
heifers more prone to dystocia as smaller, by having this period prior to mature cow births can have more people to monitor
birthdate of heifers tend to be lower and gives extra month for smaller cows from heifers to reach similar weights as mature cow calves
What is EPD?
expected progeny differences
prediction of how sire’s offspring will perform compared to other sires in breed
What are some standards for calving of heifers?
at 85%-100% of mature body weight
goal is 1 calf every year (7 in lifetime)
occurs in spring/fall
What is the ideal length of calving season?
60 days
What are some challenges during calving season?
dystocia
neonatal losses (starvation, diarrhea, septicemia, infected joints)
What is the stocker program?
graze on grass 3-4 mo post weaning
cheap gains then sold as group at heavier weight to feedlots
What is the preconditioning program?
30-60 days
set amount of feed at controlled environment (not pasture) but not as heavy as finishing
deworming/dehorning/vaccines/castration prior to entering feedlot
What is the backgrounder program?
90-120 days
pens/lots and fed dry forage/grain in feed bunks
What are the benefits of programs prior to feedlot?
similar weight/sizes so uniform feeding
can catch up light weight cattle and adds value as fully weaned
economic advantages (sold at heavier weights in groups, slow weight gain)
balance seasonal production of cattle
At what age are calves weaning?
6-7 mo
What happens at feed lots?
arrival - rest as transport stressful, get hay/water
processing - vx, deworm, castration/dehorning, anabolic implants, ID, weight
records
get animals ready for harvest (high energy grain diets)
What is most common health issue on feedlots in beef production?
respiratory disease - spreads easily as have new cattle being introduced into crowded areas
When might you see diarrhea in beef production?
earlier stage programs
What are pen riders? What do they look for?
ride horses around lot to identify animals that appear sick
look for nasal discharge, depression, coughing, isolating, not coming to feed
What are the keys to beef profit?
buy low sell high
keep them alive
make them gain
What are most of the expenses of beef production?
feed
labor (first weeks)
care - initial processing & tx
How are live beef cattle marketed?
price based on current market and perceived quality
What is dressed weight for beef?
carcass weight/hanging weight
What is grid pricing?
price based on quality grade, yield grade, other premiums discounts
What is added value?
breed certification programs
organic/natural
wagyu/kobe beef
What is the goal of antemortem/postmortem inspection?
accept animals that are healthful, safe from harmful chemical/drug residues and capable of being converted to wholesome products
Who performs antemortem/postmortem inspection?
FSIS -PHV vet food inspector, consumer safety inspectors
For animals to be passed in antemortem inspections they must be what?
ambulatory
What are the common outcomes of antemortem inspection?
passed (slaughtered/certified), suspect (suspect tags/further investigation), condemned (euth, carcass disposed of)
What is the standards for humane slaughter methods?
animals must be unconscious before they are bled
captive bolt/firearm must be performed at cross between lateral canthus of eye and base of horn on the opposite side
What is the beef grading system?
quality grades have marbling and maturity
range from prime, choice, select, standard, commercial, utility, cutter, canner
yield grades range from 1-5