Introduction to Cattle Nutrition Flashcards Preview

RUSVM Nutrition > Introduction to Cattle Nutrition > Flashcards

Flashcards in Introduction to Cattle Nutrition Deck (30):
1

2 species of cattle

Bos taurus

Bos indicus

2

dairy vs beef

• Different ability to produce milk

• Different ability to grow

• Different ability to produce body muscle and fat masses

• Different Conformation

3

important dairy breeds

• Holstein Friesland

• Ayrshire

• Jersey

• Brown Swiss

4

Jersey

smallest dairy breed

good grazing ability

high milk fat content

5

brown swiss

good grazers

heat tolerant

6

ayrshire

good grazing ability

7

important beef breeds

• Angus

• Hereford

• Highland cattle

• Shorthorn

• Charolais

• Brahman

• Texas Longhorn

8

Angus

black, smooth hair, polled

high quality carcass, well marbled meat

perform well in feedlots

9

Hereford

high beef yield

docile and easily handled

10

shorthorn/polled shorthorn

very adaptable

origin of 30 other different breeds

11

charolais

large, heavily muscled breed

high carcass yields, lean

12

brahman

Bos indicus

used for crossing

heat tolerance

forage on poor pastures

quality carcass

13

texas longhorn

adapted to harsh environments

slow maturity

tolerant to disease and parasites

survive on sparse rangelands

14

dual purpose breeds

simmentaler/fleckvieh

normande

15

T/F all dairy breeds can be used for meat production

true its just shitty

16

composite breeds

optimize beef production on harsh lands

combine hardiness with productive performance

17

objective of dairy cows

produce 1 calf per year/cow

18

T/F cows are milked year round

false

milk is produced year round but only milked for 10 months

19

types of dairy cows (nutrition wise)

grazing

minimal grazing

no grazing

20

life cycle of a dairy cow

parturition

early and peak lactation

late lactation

dry period

21

how long does the dry period typically last

60 days

22

how often do calves have to be milked

BID
365 days a year

23

quality determinants of milk

volume
fat content
protein content
somatic cell count

24

what is the objective of beef farm

produce 1 calf per year/cow and finish that calve as soon as possible

25

two types of beef farms

cow/calf

feedlot

26

cow/calf nutrition system

pasture

27

feedlot nutrition system

animals confined and have access to feed (roughage+gran)

28

what it the job of feedlot cattle

finish out as quickly and efficiently as possible

29

how long do animals typically stay in the feedlot

3-6m

30

daily gain in feedlot

2.5-4 lbs per day