animal sceince chapter 17

What are maintenance requirements?

The basic food an animal needs daily just to stay alive and healthy, without gaining or losing weight.

How does body size affect food needs?

Larger animals need more total food each day, but smaller animals need more food for every pound of body weight due to higher heat loss.

What is compensatory growth?

Growth that occurs when protein synthesis exceeds protein breakdown, often seen in young animals after periods of feed restriction.

What nutrients are important for young ruminants?

Adequate milk along with roughage is crucial for maximum growth in young ruminants.

What is finishing in animal production?

The phase when animals reach market weight, typically fed high energy rations.

What are two categories of energy requirements in reproduction?

Gamete production and fetal growth in the uterus.

What happens to dairy cows post-calving?

They reach peak lactation 45-65 days post calving, often leading to temporary loss of body weight due to rising energy requirements.

What can happen with calcium and phosphorus imbalances in lactating cows?

It can lead to decreased lactation and conditions like 'milk fever'.

How is wool production affected by feed quality?

Poor quality feed is usually limiting, and since wool fiber is primarily protein, adequate protein is essential.

What method can be used for simple rations?

The Pearson square method.