Question

3 multiple choice 1 point
what is the main reason minerals are included in livestock diets?
○ provide energy
○ build muscle
○ support bone development and body functions
○ improve feed taste

4 multiple choice 1 point
during which stage of the estrous cycle is a female most receptive to breeding?
○ diestrus
○ proestrus
○ metestrus
○ estrus

Explanation:

Question 3

Minerals in livestock diets don't provide energy (energy comes from carbs, fats, etc.), don't primarily build muscle (protein does that), and don't improve feed taste. They are essential for bone development (e.g., calcium, phosphorus) and various body functions like enzyme activity, nerve function, etc. So the correct option is the one about supporting bone development and body functions.

In the estrous cycle, the estrus stage (also called "heat") is when the female is most receptive to breeding. Proestrus is preparation, metestrus is after ovulation, and diestrus is a non - receptive phase. So the correct option is Estrus.

Answer:

C. Support bone development and body functions

Question 4