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Flashcards in beef production lec 2 Deck (12):
1

what is the feedbase?

- All feed available to provide energy
all pasture, forages, crops directly grazed, conserved forages, purchased feed (grain or forage)

2

what are the 2 types of pasture species and where are they found

C3 more southern aus
C4 more north

3

What is the advantage of C3 plants?

 more growth in spring
 higher energy content
 more Southern Aus

4

What is the advantage of C4 plants

 more in northern aus
 better for dryer conditions
 lower energy, high fibre content

5

what are examples of native and improved pasture

improved- ryegrass, fescue, cocksfoot, phalaris

- Natives – microlena, wallaby grass, red grass.
o Grow in spring,summer

6

when is pasture growth at its peak

- higher in spring
- typical pasture phalaris + cox foot
- peaks after autumn break and spring (in SW slopes)

7

what is the feed gap and when is it?

difference in available feed and that required for animal production

8

How can the feed base be manipulated?

fertiliser
irrigation
conserve forage
grow different forages
manage grazing
purchase fodder/sup feeding

9

how can the feed demand be manipulated?

- conserve forage
- grow different forages
o summer active
 Lucerne
o winter active
 oats
- managing grazing
o SR
 over grazing has increased time for recovery
• more leaf area left quicker recovery
- purchase fodder/sup feeding

10

what is the feed demand of a herd?

energy requirement of the herd

11

what is an example of a summer and winter active species?

summer active
 Lucerne most grasses
o winter active
 oats

12

what is the impact of over grazing?

over grazing has increased time for recovery
• more leaf area left quicker recovery