Ag science 27 beef 2

Which of the following options best describes a beef system where dairy calves are bought in before 6 weeks and fattened at 2 years?

• Suckler

• Dairy calf to beef

Which of the following options best describes a beef system where female beef cow give birth to and feed calves milk and are then slaughtered by 24 months?

• Suckler

• Dairy calf to beef

What is reproductive efficiency?

• The period of restricted feeding that happen over winter housing

• The growth that occurs when animals are let out onto fresh grass in spring after a store period.

• The number of calves weaned per 100 cows served

• Average Daily Gain (ADG)

What is average weight an animal puts on every day ?

• The period of restricted feeding that happen over winter housing

• The growth that occurs when animals are let out onto fresh grass in spring after a store period.

• The number of calves weaned per 100 cows served

• Average Daily Gain (ADG)

What is compensatory growth ?

• The period of restricted feeding that happen over winter housing

• The growth that occurs when animals are let out onto fresh grass in spring after a store period.

• The number of calves weaned per 100 cows served

• Average Daily Gain (ADG)

What is a store period ?

• The period of restricted feeding that happen over winter housing

• The growth that occurs when animals are let out onto fresh grass in spring after a store period.

• The number of calves weaned per 100 cows served

• Average Daily Gain (ADG)

Which of these are ways that a farmer can increase his reproductive efficiency?

• Have the cow at a BCS of 2.5-3 at mating and 3-3.5 at calving

• Have good disease control

• Select easy calving bulls

• Select replacement cows from your best preforming cows.

• Have good heat detection

Weight at birth of a purebred dairy calf?

• 40kg

• 45kg

• 50kg

• 55kg

Weight at birth of a late maturing suckler calf?

• 40kg

• 45kg

• 50kg

• 55kg

Weight at weaning for suckler calf?

• 90kg

• 220kg

• 275-300kg

• 350kg