Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
dairy science
section one of dairy science
| Question | Answer |
|---|---|
| dairy science is the science of (3 things) | science of 1. producing 2. processing 3. marketing milk |
| milk processing in the united states 1990 __lbs | 148 billion lbs |
| milk produced annually in the unitesd states in 2002 ___lbs | 169 billion lbs |
| four types of people involved | 1. processors 2. retailor s 3. service 4. supply |
| number of farms us | less than 100,000 |
| number of cows | 9.2 million cows |
| why does the industry exist (4) | 1. consumer demand 2. efficient use of resources 3. competitively priced product 4. opportunity for profit |
| consumer demand is increased by (4 things) | 1. population increase 2. per capita demand 3. advertising 4. quality product |
| quality product includes mainly (2things) | taste and saftey |
| animal efficeince from feed most and least efficent animals | dairy cow -- most efficient beef and lamb least efficient |
| labor efficiency from 1955 to 1988 how has efficience changed | efficiency has increased and per cwt has decreased |
| male (name and weight at birth | bull 55-150 lbs |
| female (name and weight at birth) | heifer 50-130 lbs |
| father cow | sire |
| mother cow | dam |
| male puberty (age and weight) | 10-12 months 5-900 lbs |
| female puberty (age and weight) | 6-10 months 4-750 lbs |
| puberty is influenced by (2things) | breed and nutrition |
| wean from dam | cow taken from its mother |
| wean from milk | has to eat big cow food |
| estrous cycle is how many days long | 21 days long |
| estrus is what and how long | is heat and it is 18 hours long |
| estrus | the time period during which a female is sexually receptive |
| how long does the first breeding last | 12-17 months |
| how many days does gestation last | 283 |
| first calving is in how many months | 21-26 |
| gestation | period during which embryo develops |
| producer | manufacturer of a product |
| calving | giving birth to a calf |
| freshening | to begin lactating |
| heifer | female cow |
| breeding | application of genetic principals to the improvement of farm animals |
| dry period | the time from drying off to re-calving |
| length of dry period (cow and first calver) | regular cow is two months first calvers before there second is three months |
| zero milk | calving (freshening) |
| zero milk | begining of lactation |
| 4-6 weeks | peak milk yield |
| 80-120 days | rebreeding |
| 305-365 days | quit milking and dry off |
| lactation makes how many lbs of milk | 7-35,000 lbs of milk |
| lactation in gallons | 800-4100 gallons |
| 8.6 lbs of milk makes how many gallons | 1 gallon |
| productive life = how many lactations | three to four |
| why is CA popular for dairy? | low humidity good location |
| PA decreasing? | all small farm refusal to change |
| top two dairdy production | US and New Zealand |
| milk sale trends up or down total whole 2 light | down, down, up , up |
Created by:
zielske
Popular Science sets