Beef SKillathon

Black Angus

Beefmaster

Brahman

Black Brangus

Hereford

Limousin

Red Angus

Santa Gertrudis

Shorthorn

Simmental

Maine Anjou

Charlais

What breeds are naturally polled?

Black Angus, Black Brangus, Red Angus

Which breeds were developed in the United States?

Beefmaster, Black Brangus, Red Angus, Santa Gertrudis,

Which breed originated in Switzerland?

Simmental,

Which breeds originated in England?

Shorthorn, Hereford

Which breeds originated in France?

Maine Anjou, Charlais, Limousin

Which breed originated in Scotland?

Black Angus

Which breed originated in India?

Brahman

What is a cow calf operation?

maintains a breeding program to produce calf crop

What is a seedstock producer?

produces breeding animals for the industry

How many jobs has beef cattle provided to the United States?

1 million direct and 2 million related

How many servings of beef can one steer serve?

540 servings

What is the amount of beef consumed per capita in 2018?

57\.2 pounds

How many cattle in the US?

94\.8 million

What percentage of cow herds have less than 100 cows?

90%

What countries has the most cattle?

India, Brazil, China, USA, European Union

Which countries does the US export the most beef to?

Japan, South Korea, Mexico, Hong Kong, Canada

How many beef cattle are in Texas?

5\.2 million

What is Texas number one in?

Total Cattle, Ranches Beef, Cow, Feedlot Cattle

Length of estrous cycle for a heifer?

283 days

Age of puberty for bulls?

6-10 months

Age of puberty for heifers?

4-14 months

How many feedlots in US?

about 30,000

what are the two types of feedlot operations?

commercial cattle feeding and famer-feeder

Label

1: Vulva

2: Vagina

3: Cervix

4: Uterus

5: Ovaries

Definition of Monotocous

one ovum produced each estrous cycle and birth to usually one young per gestation

What is the corpus luteum?

stage of follicle growth in uterus, produces progesterone, formed 4-5 days after estrus

Round Steak

Major ID: Leg Bone and 3 Muscles

Top, Bottom and Eye Round

How is Beef Yield Grade determined?

12th rib backfat, ribeye area, carcass weight, pelvic, kidney, and heart fat

Rump Roast

Top Round Steak

Bottom Round Steak

Eye Round Steak

Tip Roast

Tip Steak

Heel of Round

Top Loin Steak

T-Bone Steak

Top Loin Steak Boneless

Porterhouse Steak

TenderLoin Steak

Sirloin Steak Pin Bone

Sirloin Steak Flat Bones

Sirloin Steak Round Bones

Sirloin Steak Wedge Bone

Boneless Sirloin Steak

Rib Roast Small End

Beef Rib Roast Roll

Rib Steak Large and Small End

Rib-Eye Steak

Chuck Blade Roast

Chuck Blade Steak

Chuck Arm Roast

Chuck Arm Steak

Cross Rib Pot Roast

Flank Steak

Beef Shank Cross Cut

Boneless Whole Beef Brisket

Short Ribs

Top five beef cattle states?

Texas, Nebraska, Oklahoma, Kansas, California

What is Donadotropin Releasing Hormone?

released by the hypothalamus, controls the release of follicle stimulating hormone and lutenizing hormone

Lutenizing hormone?

released in response to GnRH, goes to ovaries and helps ovulation, formation of corpora lutea, progesterone secretion, in testes helps testosterone production

Follicle Stimulating Hormone?

released in response to GnRH, goes to ovaries and helps in follicular development and estradiol synthesis, in testes helps with sperm cell production

Oxytocin?

synth by hypothalamus, induces milk letdown, cause uterine contractions and aid in fetal and placental expulsion

in males: movement of spermatozoa, PGF2a,

Estrogen?

goes to hypothalamus, sexual behavior during estrus

males goes to brain and inhibits long bone growth

Testosterone?

female goes to brain and substrate for estrogen synthesis,

males: spermatogenesis, sexual behavior, secondary sex characteristics

Progesterone?

in females, prepare uterus to recieve embryo, inhibits GnRH release, maintains pregnancy,

one bull may produce how much sperm?

for 40,000 breeding units a year

What is maturity A

9 to 30 months

what is maturity B

30 to 42 months