Beef cattle Exam 1

Non-tillable land utilization by cows

Cows utilize non-tillable land, including topside, topography, rocks, and waterways, to access edible plants.

Cattle's dietary contribution

Cattle eat grass most of their lives, upgrading forages to quality protein and micronutrients.

Cattle and grassland management

Cattle help manage grasslands, with their methane output being similar to that of buffalo.

Economic impact of cattle industry

The cattle industry is the #1 value agricultural commodity, generating over $60 billion annually.

Economic multiplier effect

The cattle industry's economic multiplier effect ranges from $3 to $5.

Cattle inventory distribution

81.3% of cattle operations have 1-99 head; 13.3% have 100-499; 2.8% have 500-999; 1.7% have 1000-4999; and 0.7% have 5000-12000.

Top cattle-producing states

The top states for cattle production include Texas, Oklahoma, Missouri, Nebraska, and South Dakota.

Small producers’ market share

Small producers market 20% of calves and often operate as a lifestyle business rather than a primary income source.

Cattle industry structure

The cattle industry structure consists of cow-calf production, stocker operations, feedlots, packers, distributors, retailers, and consumers.

Cattle inventory statistics (2022)

By 2022, 30,000 cow-calf stocker operations existed, with an average herd size of 30 cows and an average production age of 58.

Feedlot operations statistics (2022)

In 2022, there were 28,000 feedlot operations with 14 million cattle on feed.

Dairy operations importance

There are 55,000 dairy operations that are crucial to the beef supply.

Illinois economic contribution from beef

Illinois generates over $800 million from beef, leading to over $6 million in local tax revenues.

Off-farm work reliance in agriculture

Two-thirds of Illinois beef producers report off-farm work, with only half involved in farming as their primary occupation.

Cows' preferred environments

Cows are typically found on decent land with adequate rainfall; good land with rainfall competes with crops.

Illinois cattle industry

The cattle industry in Illinois generates over $800 million and stimulates $6 million in local tax revenues, affecting 14,000 producers; two-thirds report off-farm work, and only half consider farming their primary occupation, with 80% relying on income less than half of their total income.

Cattle inventory statistics

Approximately 340,000 cows account for 1.2% of the US cattle population.

Feedlot operations in the US

There are more than 6 feedlots with over 74,000 head, supported by a large consuming population and strong business infrastructure.

Challenges in beef production

Urban sprawl, rising land costs, limited grazing land, and environmental restrictions limit beef production.

Major beef packer

Aurora is identified as one of the major packers in the beef industry.

Top counties for cattle production

The top counties for cattle production include Jo Daviess, Adams, McDonough, and McHenry.

Cattle inventory trends

Cattle inventory has been decreasing since 1977, influenced by economic cycles of expansion and contraction.

Factors influencing cattle inventory cycles

Profitability determines whether there's an expansion or contraction in cattle inventory, affected by weather, demand, and genetics.

Impact of droughts on beef production

Droughts have led to increased productivity in cows due to better selection and genetic advancements.

Beef production vs. other meats

While beef production has remained stable, chicken production has significantly increased and become more expensive.

Factors affecting beef production

Key factors include rainfall, corn availability, and consumer demand; the US supplies 21% of the world’s beef and 10% of the world’s cattle.

Cow cycle

The cow cycle refers to the fluctuations in cattle inventory characterized by periods of expansion and contraction based on profitability, influenced by weather, demand, and genetics.

Beef production efficiency

Beef production has remained stable even with a decreasing number of cows due to advancements in selection and genetics, allowing cows to be more productive and do more with less.

Non-tillable land utilization by cows

Cows utilize non-tillable land, including topside, topography, rocks, and waterways, to access edible plants.

Cattle's dietary contribution

Cattle eat grass most of their lives, upgrading forages to quality protein and micronutrients.

Cattle and grassland management

Cattle help manage grasslands, with their methane output being similar to that of buffalo.

Economic impact of cattle industry

The cattle industry is the #1 value agricultural commodity, generating over $60\text{ billion}$ dollars annually.

Economic multiplier effect

The cattle industry's economic multiplier effect ranges from $3$ to $5$ dollars.

Cattle inventory distribution

$81.3\text{\%}$ of cattle operations have $1\text{--}99$ head; $13.3\text{\%}$ have $100\text{--}499$; $2.8\text{\%}$ have $500\text{--}999$; $1.7\text{\%}$ have $1000\text{--}4999$; and $0.7\text{\%}$ have $5000\text{--}12000$.

Top cattle-producing states

The top states for cattle production include Texas, Oklahoma, Missouri, Nebraska, and South Dakota.

Small producers’ market share

Small producers market $20\text{\%}$ of calves and often operate as a lifestyle business rather than a primary income source.

Cattle industry structure

The cattle industry structure consists of cow-calf production, stocker operations, feedlots, packers, distributors, retailers, and consumers.

Cattle inventory statistics (2022)

By 2022, $30{,}000$ cow-calf stocker operations existed, with an average herd size of $30$ cows and an average production age of $58$.

Feedlot operations statistics (2022)

In 2022, there were $28{,}000$ feedlot operations with $14\text{ million}$ cattle on feed.

Dairy operations importance

There are $55{,}000$ dairy operations that are crucial to the beef supply.

Illinois economic contribution from beef

Illinois generates over $800\text{ million}$ dollars from beef, leading to over $6\text{ million}$ dollars in local tax revenues.

Off-farm work reliance in agriculture

Two-thirds of Illinois beef producers report off-farm work, with only half involved in farming as their primary occupation.

Cows' preferred environments

Cows are typically found on decent land with adequate rainfall; good land with rainfall competes with crops.

Illinois cattle industry

The cattle industry in Illinois generates over $800\text{ million}$ dollars and stimulates $6\text{ million}$ dollars in local tax revenues, affecting $14{,}000$ producers.

Commercial cow-calf segment metrics

Maintains breeding herds to produce calves sold at weaning, with over $50\text{\%}$ located in the Great Plains, an average weaning weight of $575\text{ lbs}$, and an average weaning age of $200\text{ days}$.

Seedstock segment characteristics

Consists of roughly $50{,}000$ US operations providing purebred or hybrid genetics, where $75\text{\%}$ of the top $100$ sell Angus and the top $5$ sell $13{,}350$ bulls annually.

Stocker and backgrounding segment

Purchases weaning calves at around $550\text{ lbs}$, uses forage and health protocols to prepare them, and sells them as yearlings at around $850\text{ lbs}$.

Feedlot segment metrics

Confined feeding operation averaging $200\text{ days}$ on feed, a target slaughter weight of $1{,}400\text{ lbs}$, and a typical slaughter age of $15\text{--}20\text{ months}$.

Top 4 US beef packers

Tyson, JBS, Cargill, and National Beef, which collectively slaughter over $80\text{\%}$ of all US steers and heifers.

US beef slaughter composition by animal type

Consists of $50\text{\%}$ fed steers, $30\text{\%}$ fed heifers, $18\text{\%}$ cows, and $2\text{\%}$ bulls.

Retail vs. foodservice ground beef sales share

Ground beef accounts for $20\text{\%}$ of retail beef sales and $62\text{\%}$ of foodservice beef sales.

Nutritional profile of beef per 3 oz serving

Provides roughly $50\text{\%}$ DV of Zinc, along with heme iron, high-quality protein, B vitamins, selenium, and phosphorus.

USDA beef carcass maturity classifications

Classified as A ($9\text{--}30\text{ months}$), B ($30\text{--}42\text{ months}$), C ($42\text{--}72\text{ months}$), D ($72\text{--}96\text{ months}$), and E ($>92\text{ months}$).

USDA marbling degree scores

Includes Light (Select), Small (Low Choice), Medium (High Choice), and Slightly Abundant (Low Prime).

Yield Grade calculation formula

$$\text{YG} = 2.50 + 2.50 \times \text{fat thickness} + 2.0 \times \text{KPH} - 0.32 \times \text{REA} + 0.0036 \times \text{HCW}$$

Dark cutter carcass condition

Caused by muscle glycogen depletion prior to slaughter, resulting in a muscle $\text{pH} \ge 6.0$ and potential discounts up to $1$ full quality grade.

Key US meat inspection legislation

Meat Inspection Act (1906, updated 2004 for downer cattle), Humane Slaughter Act (1958), and Wholesome Meat Act (1967).

Country of Origin Labeling (COOL) timeline

Approved in 2009 for fresh beef and repealed by Congress in 2015.

Top 5 countries by cattle inventory (2025)

Brazil ($195.5\text{ million}$), India ($194.6\text{ million}$), China ($99.1\text{ million}$), United States ($86.7\text{ million}$), and Ethiopia ($72.3\text{ million}$).

Australia beef industry statistics

Has $27.4\text{ million}$ cattle, exports $60\text{\%}$ of its production, and has an inventory highly sensitive to drought.

Brazil beef industry statistics

Has $195.5\text{ million}$ cattle ($80\text{\%}$ Nellore), exports $37\text{\%}$ of production, and utilizes primarily pasture grass-based finishing.

Global atmospheric greenhouse gas increases

$\text{CO}_2$ increased by $50\text{\%}$ (since 1850), $\text{CH}_4$ increased by $150\text{\%}$ (since 1750), and $\text{N}_2\text{O}$ increased by $22\text{\%}$ (since 1750).

Manure's share of cattle carbon footprint

Manure accounts for $32\text{\%}$ of the total carbon footprint of cattle.

Cow-calf calf pricing trends (2018, 2023, 2025)

Weaning calf values were $\$920$ in Fall 2018, $\$1{,}406$ in Fall 2023, and $\$2{,}242$ in Fall 2025.

Feedlot per-head value trends (2018, 2023, 2025)

Finished feedlot cattle values were $\$1{,}700$ in Fall 2018, $\$2{,}688$ in Fall 2023, and $\$3{,}388$ in Fall 2025.

Top 5 US seedstock operations

Forgemson, Gardiner, Leachman, Express, and 4-Farms, which together sell $13{,}350$ bulls annually.

Beef purveyors vs. retailers

Purveyors buy and fabricate specialized cuts (like steaks) for foodservice, whereas retailers (grocery stores) focus on fresh/frozen case-ready cuts.

Skirt steak market value

Skirt steak is the single most valuable beef cut per unit due to high demand relative to its small percentage of total carcass weight.

Myoglobin function in meat color

Myoglobin is the protein responsible for red color; rare whole-cut meat is safe to eat because the interior muscle is sterile, unlike ground beef.

Factors influencing beef tenderness

Influenced by breed, age, rate of gain (faster growth increases tenderness), carcass weight, post-mortem aging, and marbling lubrication.

E. coli and Salmonella protocols in beef processing

Shiga toxin-producing E. coli triggers safety recalls and causes HUS in children; Salmonella is an indicator pathogen reduced by fasting animals before slaughter.

Bovine Spongiform Encephalopathy (BSE) types

A brain-damaging neurological dysfunction where classical BSE comes from contaminated feed and atypical BSE occurs randomly in older cows ($\ge 8\text{ years}$).

Foot and Mouth Disease (FMD) characteristics and US status

Highly contagious viral disease causing oral and foot blisters across 7 serotypes; the US has been free since 1929, while a 2001 UK outbreak led to destroying $10\text{ million}$ animals.

New Zealand beef industry statistics

Has $9.6\text{ million}$ cattle, exports $80\text{\%}$ of production, and is dominated by grass-based grazing dairy beef systems.

Argentina beef industry statistics

Has $51.7\text{ million}$ cattle (mainly Angus and Hereford), exports $9.5\text{\%}$ of production, features low cow productivity ($300\text{--}400\text{ lbs}$ weaning weight), and has a history of FMD.

European Union beef industry statistics

Has $89\text{ million}$ cattle, exports $22\text{\%}$ of production, uses an eatability grading system, and bans implants, beta-agonists, castration, branding, and dehorning.

Canada beef industry statistics

Has $14\text{ million}$ cattle, exports $50\text{\%}$ of production, relies on barley diets, and lost $\$7\text{ billion}$ when a 2003 BSE case closed borders until 2005.

Mexico beef industry statistics

Has $19\text{ million}$ cattle, meets $82\text{\%}$ of domestic demand, imports finished beef, and exports feeder calves to the US.

Japan beef industry statistics

Has $4.5\text{ million}$ cattle (noted for Wagyu), exports $<1\text{\%}$ of production, maintains strict food safety, and imports high-quality beef from the US and Australia.

South Korea beef industry statistics

Has $2\text{ million}$ Hanwoo cattle, opened to US imports in 2008, and demands high-quality imported beef.

Russia beef industry statistics

Has $17\text{ million}$ cattle, with production continually decreasing and costs rising since the collapse of the USSR.

China beef industry statistics

Has $94.1\text{ million}$ cattle (yellow cattle, dairy, water buffalo, yak), is a top importer, and consumes higher volumes of pork and chicken relative to lower-quality beef.

India beef industry cultural context

Has $194.6\text{ million}$ cattle; cattle are considered sacred in Hinduism, symbolizing nourishment, non-violence, and ethical relationships.

Edible beef non-carcass products (variety meats)

Includes tongue, cheeks, lips, headmeat, tail, liver, tripe, melts (spleen), and kidneys.

Environmental benefits of cattle in grazing ecosystems

Cattle utilize unmaintained arid soils, suppress wildfires, increase plant productivity, enhance carbon sequestration, and operate with a minimal water footprint primarily composed of rainwater.

USDA Beef Yield Grade components and evaluation

Measures carcass cutability (percentage of boneless, closely trimmed retail cuts) based on 12th-rib fat thickness, Ribeye Area (REA), Kidney, Pelvic, and Heart fat ($\text{\%KPH}$), and Hot Carcass Weight (HCW).

USDA Beef Quality Grade components and evaluation

Predicts overall palatability (tenderness, juiciness, and flavor) based on carcass