Advanced Livestock Nutrition

Multiple Choice

Which of the following is a key reason for analyzing and calculating feeding rations for livestock animals?

• To ensure animals receive proper nutrition for growth and production

• To reduce the cost of animal feed only

• To make livestock feed taste better

• To increase the number of animals on a farm

Open Ended

Why is understanding the nutrition of livestock animals important for both farmers and consumers?

Multiple Choice

What is the main purpose of exploring livestock feeding practices and feed quality issues?

• To increase animal population

• To determine the effect on animal health

• To reduce feed costs

• To improve farm aesthetics

Fill in the Blank

The gastrointestinal tract (GIT) extends from the mouth to the ___.

Open Ended

Explain how the digestive system uses both chemical and physical means to process feed in livestock animals.

Open Ended

Describe the importance of absorbing nutrients from feed for the health and energy of livestock animals.

Multiple Select

Which of the following are functions of the digestive system in livestock animals?

• Breaking down feed particles into smaller molecules

• Absorbing molecules into the circulatory system

• Producing vitamins and minerals

• Eliminating undigested feed

Multiple Choice

Which of the following is NOT a function of the digestive system in livestock animals?

• Breaking down feed into smaller molecules of nutrients

• Absorbing nutrients for energy

• Producing feed for other animals

• Eliminating undigested portions of feed

Multiple Choice

Which of the following is NOT included in the pre-digestion process in animals?

• Prehension

• Mouth

• Stomach

• Esophagus

Multiple Select

Which of the following animals use their lips, tongue, or both to gather food into their mouths?

• Horses

• Cattle

• Sheep

• Chickens

Fill in the Blank

The mass of food and saliva formed in the mouth after thorough chewing is called a ___.

Open Ended

Explain how mastication aids in the digestive process and why it is especially important for ruminant animals.

Multiple Choice

What is the main function of the esophagus in the digestive system?

• Absorb nutrients

• Take food from the mouth to the stomach

• Break down food with enzymes

• Store food temporarily

Multiple Choice

Which of the following is NOT one of the three steps of digestion?

• Mechanical forces

• Chemical action

• Enzymatic activity

• Fermentation

Multiple Choice

Which of the following animals is an example of a ruminant (polygastric) animal?

• Pig

• Horse

• Cow

• Chicken

Fill in the Blank

Ruminants have a hardened gum called a ___ instead of upper incisors.

Multiple Select

Which of the following are compartments of the ruminant stomach?

• Rumen

• Reticulum

• Omasum

• Cecum

Open Ended

List two unique features of ruminant digestive systems that allow them to break down fibrous feedstuffs.

Open Ended

Explain how anaerobic bacteria in the rumen contribute to the digestion process in ruminants.

Multiple Choice

What is the primary function of the rumen in ruminant animals?

• Absorption of nutrients

• Storage and fermentation of feed

• Production of saliva

• Digestion of fats

Multiple Select

Which of the following statements about bacteria and protozoa in the rumen are correct?

• They are the most important microbes in the rumen

• They digest approximately 70 to 80 percent of digestible dry matter

• They are responsible for separating the rumen from the reticulum

• They act as a pump to move food to the true stomach

Multiple Choice

What is the primary role of microbes in the rumen of ruminants?

• To convert feed components into usable sources of energy and protein

• To absorb nutrients directly from the feed

• To separate the rumen from the reticulum

• To act as a pump moving food to the true stomach

Fill in the Blank

The reticulum is separated from the rumen by a ridge of ___.

Open Ended

Explain how the structure and function of the reticulum contribute to the digestive process in ruminants.

Multiple Choice

What is the main function of the omasum in the ruminant digestive system?

• Acts as a pump moving food from the reticulorumen to the true stomach

• Separates the rumen from the reticulum

• Converts feed components into energy and protein

• Catches foreign material present in the feed

Fill in the Blank

The omasum contains 90 to 95 percent ___.

Open Ended

What is one question you still have about livestock nutrition or something you would like to learn more about after this lesson?

Multiple Choice

Which of the following is NOT an objective of studying advanced livestock nutrition as outlined in the lesson?

• To identify structures and functions of the digestive system of ruminant and non-ruminant animals.

• To identify and describe vitamins, minerals and additives in livestock feed.

• To analyze and calculate feeding rations and energy requirements based on nutritional requirements of livestock animals.

• To learn about the history of livestock domestication.