Extensive feeding

Question 1

What is the diet composition in an extensive system?

Answer 1

Pasture is the basis of the diet with nutrient deficiencies being corrected by lick supplementation

Question 2

With supplementation, ad lib intake is controlled by ..?

Answer 2

Salt inclusion or lick blocks

Question 2

With supplementation, ad lib intake is controlled by ..?

Answer 2

Salt inclusion or lick blocks

Question 3

Name the different types of licks

Answer 3

1. P licks
2. Protein licks
3. Energy licks
4. Mineral licks

Question 4

When do we provide a protein lick?

Answer 4

1. When the veld has a low digestability
2. Late winter

Question 5

When do we provide an energy lick?

Answer 5

Late summer on veld finisher or flushing

Maintenance on late winter grazing

Question 6

What is the different licks cost ratio?

Answer 6

P-lick 1 < Winter lick 5 < Energy lick 10

Question 7

What vitamins are added to licks when grazing dry pastures or hay?

Answer 7

Vit A & E

Question 8

Lactating ewes in winter will have a deficiency in:

Answer 8

– Energy
– Protein
– Manganese
– Copper
– Zink
– Phosphorus

Question 9

What element has the largest economic impact on livestock of all mineral deficiencies?

Answer 9

Phosphorus

Question 10

What is the implications of Phosphorus deficiency?

Answer 10

1. Pica
2. Low fertility
3. Ovary dysfunction
4. Poor growth of lambs
5. Low milk production in ewes.
6. Lower intakes of grazing/ pastures due to a reduced efficiency of rumen microbes.

Question 11

What is the difference between October matings and February matings?

Answer 11

October matings – requirements follow veld nutrient content and production

Feb mating – Leads to large deficiencies and an oversupply during the high productive months