Animal Nutrition
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What is the largest production cost In the livestock industry? __-__%
Feed costs 60-75%
The study of feedstuffs and their efficient utilization by livestock in producing animal products such as meat, milk, wool, and work
Animal nutrition
A feed constituent (chemical substance) that is absorbed from the digestive tract and is metabolized by the body to support life
Nutrient
Six classes of nutrients
Fats Proteins Vitamins Carbs Minerals Water
Nutrients that cannot be synthesized by the body and must be supplied through the diet
Essential nutrients
Water comprises __-__% of the bodies weight
70-75%
Functions of water (5)
Transportation Media for metabolic reactions Thermoregulation Lubricant Gives cells their shape
The most highly consumed nutrient Ratio?
Water >2:1
Average water daily consumption of (gal/day) Swine Cattle Horses Sheep
1.5-3 10-14 10-14 1-2
True or false: animals will die more quickly from lack of water than any other nutrient
True
Primary function is to provide energy C,H, and O
Carbohydrates
Energy content is measured in _____ Heat required to raise the temperature of 1 g of water 1°C from 14 to 15
Calorie
1 kilocalorie = ____ calories 1megacalorie = ____ calories
1000 1 million
Energy content of carbohydrates
4.2 kcal/g
3 groups of carbohydrates
Monosaccharides Disaccharides Polysaccharides
Monosaccharides are _____ sugars with ___-___ carbons 4 monosaccharides
Simple sugars with 5-6 carbons Glucose Fructose Galactose Ribose/deoxyribose
What are the 3 disaccharides and what are they composed of?
Sucrose (glu+fru) Lactose (glu+gal) Maltose (glu+glu)
What are the 5 polysaccharides?
Starch Glycogen Cellulose Hemicellulose Lignin
Starch is bonded by what linkage? Energy storage in _____ Primarily found in _________
Alpha 1-4 Plants Concentrates
High-energy low fiber feedstuff that is highly digestible Examples?
Concentrate Corn, grain, sorghum, wheat
Glycogen: _____ starch Stored in _____ and _______
Animal Liver and muscle
Cellulose: Bonded by \_\_\_\_\_ linkage Found in \_\_\_ \_\_\_\_ of \_\_\_\_\_\_ Highly or lowly digestible? Found primarily in \_\_\_\_\_\_
Beta1-4 linkage Cell wall of plants Lowly digestible Roughages
Hi fiber low energy feedstuff that is lowly digestible Examples?
Roughage Hay, pasture, silage
Bonded by both alpha and beta 1-4 linkages
Hemicellulose