Nutrition is the process by which animals eat and use food
Proper animal nutrition
Increases feed efficiency
Increases rate of gain
Nutrient
A substance that is necessary for an organism to live and grow
Nutrients are provided to animals through
Feed stuff (feed & water)
Balanced ration
The total amount of feed an animal has in a 24hr period
Contains all the nutrients that the animal needs in the correct proportions
The amount of feed that will supply the proper amount & proportions of nutrients needed for animal to perform a specific purpose such as growth, maintenance, lactation or gestation
Nutrient needs of animals
Water
Carbohydrates
Fats
Proteins
Minerals
Vitamins
Water
Necessary for an animal to live
Animal can live longer without food than water
Water makes up 75% of the weight of an animal's body
Regulates body functions
Promotes biochemical process
Carbohydrates
Provide energy
Should make up 75% of an animal's diet
Types: Sugars, Starches, Fiber
Sources of carbohydrates
Cereal grains: Corn, Wheat, Barley, Oats, Rye
Hay
Lipids
Fat is a good source of energy
Fats have 2.25 times more energy than carbohydrates
Proteins
Needed for growth of new tissue and repair of old tissue
Highest amount found in muscles
Contain amino acids (building blocks of proteins)
23 amino acids, 10 are essential
Sources of proteins
Soybean meal
Cotton seed meal
Fish meal
Tankage
Skim milk
Alfalfa
Protein is the most common nutrient deficiency
Minerals
Macro-minerals: Calcium, Phosphorous
Micro-minerals: Iron, Zinc, Copper
Minerals
Essential for skeletal growth and proper functioning of bodysystems
Common sources of minerals
Alfalfa hay
Cereal grains
Bone meal
Molasses
Salt
Vitamins
Help regulate body functions
Keep body healthy
Develop resistance to disease
Types of vitamins
Fat soluble: Vitamin A, D, E, K
Water soluble: Vitamin C, B
Nitrogen Deficiency (yellowing) of the leaves.
Phosphorus deficiency (purple coloration).
Potassium Deficiency margins eventually turning brown
Magnesium Deficiency starts on the older leaves and progresses towards the top of the plant
Calcium Deficiency poor root development
Sulfur Deficiency affects the entire plant except the very tip