Principles of Animal Nutrition - Food Consumption Regulation

These flashcards cover key vocabulary terms and concepts from the principles of animal nutrition regarding feed consumption regulation.

Palatability

The degree of feed acceptability to taste, determined by appearance, odor, taste, texture, temperature, and other sensory properties.

Appetite

The desire to eat.

Satiety

The lack of desire to eat.

Hunger

The physiological state resulting from feed deprivation.

Control Mechanisms of Feed Intake

Processes that regulate food intake through internal factors (like hormonal) and external factors (like environmental cues).

Hypothalamus

The brain region that controls food intake; lesions here can lead to disorders of appetite.

Short-term Control of Food Intake

Control initiated by food presence in the GI tract; includes signals for satiety and meal size.

Hormones Affecting Feed Intake

Substances like gastrin, CCK, secretin, GLP-1, and PYY that suppress intake as part of short-term regulation.

Long-term Control of Food Intake

Regulation involving intrinsic and extrinsic factors, including hormonal effects like leptin release from adipose tissue.

Chemostatic Regulation of Appetite

Mechanism relating food intake inversely with blood glucose concentration in nonruminants.

Factors Influencing Palatability

Elements like taste, odor, visual appeal, and texture which affect the acceptability of feed.

High-Protein Diet

Tends to decrease feed intake due to increased heat increment.

Environmental Factors

High temperature and humidity can reduce feed intake, while proper feed design can enhance consumption.

GI Tract Limitations

Physical limitations of the gastrointestinal tract affecting the amount of food intake.

Species Variability in Feed Intake

Differences in feed consumption patterns based on the GI tract characteristics of various animal species.

Feed Preparation

Processes like pelleting or supplementation that can increase feed intake, particularly in ruminants.