Shared Flashcard Set

Details

AN S 114
Exam III
49
Agriculture
Undergraduate 1
11/10/2010

Additional Agriculture Flashcards

 


 

Cards

Term
Types of Dairy Animals
Definition

Cattle: Bos taurus and Bos indicus

Goats: Capra hircus - exotic cheese in U.S.

Sheep- popular in Middle East and Africa

Yak, Buffalo- India and Africa

Horse- Ukraine, Bulgaria, and China

Term
US Dairy Cattle
Definition

Came in Jamestown colony (British) "dairy purpose"

-1st animals from Europe to last after winter

21st century: 90+% of milk produced comes by one breed (Holstein)

Term
Dairy Industry History
Definition

Cattle 1st used at "triple purpose": meat, milk, work

Industry developed closer to population due to perishable product

Top States in Dairy:

CA:1,800,000

2nd: WI, 3rd: NY

Term
Dairy Calf (After-birth)
Definition

Calf is born

Day one: Weaned from mom (hand-fed colostrum), identification is made, 

30+ days: Weaned from milk, vaccinations (veterinarian) 

Navel Dip: 2% v. 7% (7% is better but more expensive); makes methaphetamine

 

 

Term
Calf hutch
Definition

Dairy ONLY!

outdoor tent-like structure

where calves go after weaned from mother at day one

all offspring drink 10-20% of body weight daily

Term
Male Dairy Calves
Definition

Sell males ? yes

Dehorn/castrate? yes, probably by person who bought the calf

Most males go to feedlots, while few go to replacements

 

Term
Dairy Bulls vs. Beef
Definition

Pre-selected

dairy- AI org./ beef- bull studs predominate

very few dairy bulls selected

feedlot performance not tested (USA)

Term
Female Dairy Cattle
Definition

Replacement: Breed at 15 months

9 month gestation (1st calf at 24 months)

"305-day Standard"

Rebreed in 90 days (culls-don't rebreed)

10 month lactation (100% lactation at 3 months)

lactates before it gives birth

 

 

Term
Beef Cattle
Definition

Genus- Bos, species: taurus or indicus (hump-back)

History:

1493 (Columbus), 1521 (mainland Mexico), 1607: Jamestown (survival!), 1625: Dutch colonies (herds grow)

Ranching in USA: 1493 (in S.W. USA)

Farm System: 1611 (East Colonies)

Combination of both: (late 1800s)

Supply became expensive (1980) so nutritionists turned to poultry for cheap meat

Term
Exotic Breeds of Beef
Definition

Evolution: "exotic breeds" from Europe (1970s)

Exotic breeds:

Charlais, Simmental, Limousin, Chianina

Market weight: 1100 lbs

Max. Weight: 4000 lbs

Term
Beef Life Cycle
Definition

season: fall vs spring

weight: 70-100 lbs

colostrum- feed from mother

navel dip

castrate: inc. trend, but still doesn't happen often

dehorn: yes so it doesn't hurt other animals

How long does the mom lactate? 7 months

Term
Replacement Calves
Definition

weaned at 7 months

heifers/bulls (160-day Feedlot Test)

low energy diet/ high energy diet

bred by 15 months- low e- diet/  Service=>slaughter

heifer-calve by 24 months

rebreed 90 day

12 months calving cycle

 

Term
Feeder Calf
Definition

feed lot- high e- die-(grain-based)=>slaughter

age: 13-15 months (1100+ lbs)

stocker- 7 months=> low e-diet (roughage)

feedlot-(not S. America(start at one year of age) start high energy diet

(slaughter: 1100+ lbs, 1.5-3 years old

Term
Sheep
Definition

Ovis aries

domesticated 11,000 years ago

Three main categories:wool- (USA), hair- (Middle-East, Africa), broad or fat-tail

Sheep States: (grazing states)

TX, CA, WY, CO, SD

Term
Goat
Definition

Types:

Angora (hair)

Milk (goat cheese inc. popularity in USA)

Meat (most popular of goat use, Mexico)

Term
Sheep History
Definition

1493 (Columbus), Spanish missions spread flocks in C. America and S.W. USA

1607- died off in E. Colonies, 1611 (propagation began!)

 

Term
Sheep Reproduction Character
Definition

 

  • seasonal polye-: fall; (Hampshire, Suffolk, Most Breeds)
  • nonseasonal polye- fall/spring; (Dorset, Rambouilet, Finnsheep)
  • 5 month gestation
  • Lambing rate: single, twin, multiples (Finnsheep) 
    • every other ewe gives birth to a single/twin

 

Term

 

Wool Types of Sheep

 

Definition
  • wool-type: very fine fleece, heavy clip (higher weight; due to wool on body)
  • Breeds: Merino (High Quality), Rambouillet (Shitty Wool Socks)

 

Term
Meat-type
Definition
Term
Meat-Type Sheep
Definition

  • more muscled, coarser fleece, lighter clip
  • Dorset, Hampshire, Suffolk, many others
  • many breeds form England

Term
Sheep Synthetics
Definition

 

  • different from production of all other animals
  • combine mother skills, prolific nature of non-seasonal polye-, and litter bearing
  • Finnsheep, Rambouillet, Lincoln , and others
  • USDA Research: Targhee, Panama, Morlam, Polypay

 

Term
Sheep Life Cycle
Definition

 

  • birth weight: 9-12 lbs
  • colostrum- sometimes a colostrum "plug" occurs
  • "grafting"- move one lamb to another ewe (Important for multiple litter sizes)
  • navel dip
  • Housing- lambing in winter (IT'S A NECESSITY)

 

Term
Start Young for Lambs
Definition

Tail Dock- removal of tail (no fecal matter build-up)

castration: early (meat is later)- inc. reproduction performance

weaning: 60-90 days (vaccinations)

Identification: paint wool w/ latex paint on back of sheep

Term
Marketing Sheep
Definition

 

  • market: 90-120 days
  • weight: 110-150 lbs
  • Lamb- less than one year of age
  • Mutton- over one year of age
  • How to tell?
    • lamb- long bone is less solid (top of bone can snap off)
    • mutton- long bone is solid (can't snap off top of bone

 

Term
Ewe Production Cycle
Definition

Breed (Sept.-Nov.)

5 month gestation- sheer mother

lambing- Jan-April (Cull Rate: 20-25%)

Rebreed in Spring

Term
What does "grade" indicate?
Definition

not indicator if it's sage to eat

quality of meat and how much fat is with the meat

Term

Hog vs. Beef

What's on your meat?

Definition

eat Hog with skin on product

eat Beef with no skin left on product

Term
Buying Animals and Animal Products
Definition

 

  1. personal private treaty- companion animals and horses
  2. auction/market
  3. terminal market- late 1800s-1960s (Old West Way)-City Slickers
  4. Direct/Contact Marketing- buyer comes to farm' farmers become marketers
  5. futures market

 

Term
Lifestock Cycles and prices
Definition

 

  • demand is "inelastic"- milk drinkers keep drinking it no matter the price
  • some factors are causing shifts in demand:
    • population, income (problem now), tastes/preferences (yogurt sit.), substitute products (soda => milk and water)

 

Term
Agricultural Marketing Act
Definition

 

  • est. in 1946 to facilitate marketing by:
    • reporting sales and prices
    • facilitated long distance sales
    • provide a quality guide to consumers
  • establish "classes" and "grades"

 

Term
Classes and Grades (animal marketing)
Definition

class- a group according to use (example: feeder cattle, slaughter lambs)

grade- a group according to relative merit (exp: AA eggs, choice steak (more in-meat fat)

Term
Marbling
Definition

fat in a choice steak

quality determiner

intramuscular fat

Term

Evaluation (Animal Marketing)

 

ESSENTIAL FOR EXAM III

Definition

  • "grading" of livestock or products is not mandatory (milk- consumers expect it)
  • "inspection" is mandatory
    • for interstate trade- federal inspection
    • for intrastate trade- state inspection

Term
Red Meat Grading
Definition

1. Quality Grading-eating characteristic- (Prime, Choice)- not tenderness, but flavor (marbling)

higher grade=>higher fat

factors: quality and maturity

2. Yield or cutability grading (1,2,...)

lower fat, higher lean= better grade 

Term
Yield or catability gradi
Definition
Term

Grading Highs and Lows:

Beef/Lamb ?

Poultry ?

Pork ?

Definition

highest/lowest:

Beef/Lamb: Prime/Canner

Poultry: A/C

Pork: Acceptable/Unacceptable (no other terms)

Term
Causes for Unacceptable Meat in Pork
Definition
  1. sboil- soft and oily (fed too much soybean oils)
  2. PSS=>PSE- pale, soft (cooks dry) exudative ?
  3. porcine stress syndrome (Heavy Muscled Swine and Cattle)
  4. get excited, then keel over due to over excitement (HA)
Term

Yield Grades 

Beef/Lamb/Pork

Definition

High- 1 =>extremely meaty and lean

Low- 4,5

Term
Carcass
Definition
carcass- the meat part; post- slaughter
Term
Lamb/Beef Meat
Definition

Leg- highest $ value

Loin- price per pound is best!

flank

rack

breast

shoulder

shank

Term
Hooved Animal Milk
Definition

  • the lacetal section
  • practically free from colostrum
  • obtained from complete milking=>milk from 1st draw of milk is lower in fat than the last draw of milk from cow
  • of one or more healthy hooved animals
  • which contains less than 8.25% solids, not fats
  • and not less than 3.25%, milk fat

Term
Allowances for Market Milk
Definition

  • addition of Vitamin D, Vitamin A
  • flavors: must change name to reflect:
    • chocolate and strawberry milk
  • Dominantly Dairy Product Consumption:
    • 2% milk- Most widely used: really 3.25%
    • Whole Milk- not very much use, but still more than Skim

Term
Milk Marketing - Grades
Definition
  • Grades
    • conditions for production
    • general sanitary conditions
    • pasteurized milk ordinance
Term
Milk Marketing - Certified
Definition

  • Certified
    • Grade A: 98% - high quality, wholesome production system
    • Grade B: 2%- cannot be milk (butter cream

Term
Milk Marketing - Classes
Definition

Classes: utilizations of milk

  1. class 1: "pour"- milk, cream
  2. class 2: "spoon"- cottage cheese, yogurt, ice cream
  3. class 3: "cut"- cheese, butter
  4. class 4: "dry"- milk/powder

Term
Grade A Raw Milk Limits
Definition

  1. tank temp.- 40 fahrenheit (4.4 celsius) or less
  2. bacteria- 100,000 per mL
  3. somatic cells- 750,000 per mL
    1. want to get lower, so it's a better product
  4. Antibodies
    1. 16 mm or less (zone with Bacillus stereothermphillus)
    2. ZERO TOLERANCE FOR DRUGS

Term
Pasteurization
Definition
heat process that kills 99.999% of known pathogens (Grade milk does it, raw milk doesn't)
Term
Homogenation
Definition

process to break up globules in milk so that they do not rise to the top

*separation- removal of fat from the milk to leave skim milk

not required (99% done though)

Supporting users have an ad free experience!