Animal Products and Breeds

Products Obtained from Sheep

Sheep are domesticated animals that provide several important products for human use.

• Wool: Used for making textiles and clothing due to its insulating properties.

• Meat (Lamb/Mutton): Consumed as a source of protein in many cultures.

• Milk: Used to produce cheese and other dairy products.

• Hide: Processed into leather goods.

Additional info: Sheep also contribute to agricultural systems through grazing and manure production.

Equine Breeds and Their Purposes

Different horse breeds are selected for specific purposes based on their physical and behavioral traits.

• Standardbred: Used for Racing, especially harness racing.

• Percheron: Used for Power/pulling/plowing due to their strength.

• Hanoverian: Used for Western Pleasure and competitive riding.

• Appaloosa: Used for Driving and general riding.

• Hackney: Used for Driving and carriage work.

Additional info: Horse breeds are often classified by their suitability for work, sport, or leisure activities.

Sheep Breeds for Quality Fleece

Certain sheep breeds are renowned for producing high-quality wool.

• Merino: Known for the finest and softest wool, highly valued in textile industries.

Additional info: Other breeds like Rambouillet also produce good quality fleece.

Livestock Breeds and Their Purposes

Livestock breeds are often specialized for meat, milk, eggs, or fiber production.

Additional info: Some breeds are dual-purpose, providing both meat and milk.

Animal Terminology and Breeding

Breed Characteristics and Terminology

Livestock breeds are identified by specific traits and are classified for various agricultural purposes.

• Golden-colored milk: Guernsey cattle are known for this trait.

• Heifer breeding age: Dairy heifers are typically bred at 13-15 months of age.

• Countries with greatest cattle amounts: Brazil and India are leading in cattle population.

• Equine height: Horses are measured in "hands" (1 hand = 4 inches).

Classification of Cattle

Cattle are classified into sub-species based on genetic and physical characteristics.

• Bos taurus: European breeds, adapted to temperate climates.

• Bos indicus: Zebu breeds, adapted to tropical climates.

Reasons for Breed Development

Breeds are developed for specific agricultural needs.

• To serve a specific purpose (meat, milk, work, etc.)

• Standardize animals for predictable traits

• Human curiosity and selective breeding

• Genetic improvement of animals

Lactation Period in Dairy Cows

The lactation period refers to the time a cow produces milk after calving.

• Typical lactation lasts about 305 days.

• The remaining 60 days are called the "dry period" when the cow is not milked.

Animal Species Producing Milk for Humans

Several animal species are used for milk production worldwide.

• Cow (Bos taurus)

• Goat (Capra hircus)

• Sheep (Ovis aries)

• Buffalo (Bubalus bubalis)

• Camel (Camelus dromedarius)

Swine Breeds and Carcass Traits

Some swine breeds are recognized for specific carcass characteristics.

• Hampshire: Noted for black and white belt color pattern.

Poultry Breeds for Egg Production

Commercial egg production relies on breeds with high laying rates.

• Leghorn: Most commonly used for commercial egg production.

Animal Industry and Crossbreeding

Animal Industry Sectors

Animal agriculture includes various sectors such as dairy, meat, and fiber production.

• Dairy farms: Focus on milk production.

• Feed mills: Produce animal feed.

• Processing plants: Convert raw products into consumables.

Milk Composition

Different breeds produce milk with varying fat and protein content.

• Jersey: Produces milk with highest fat and protein content.

Animal Sources for Human Consumption

Animals provide essential products for human nutrition and industry.

• Cattle (beef, milk)

• Sheep (meat, milk, wool)

• Goat (meat, milk)

• Pig (pork)

• Chicken (meat, eggs)

Crossbreeding in Livestock

Crossbreeding is the mating of animals from different breeds to combine desirable traits.

• Definition: The process of breeding animals from two different breeds to produce offspring with improved characteristics.

• Common beef breeds for crossbreeding: Angus, Hereford.

• Reasons for crossbreeding:

  • Hybrid vigor (heterosis): Offspring show improved growth, fertility, and health.

  • Combining desirable traits from both breeds.

Hybrid Vigor (Heterosis)

Hybrid vigor refers to the increased performance of crossbred animals compared to purebreds.

• Technical term: Heterosis

• Results in improved growth rate, fertility, and disease resistance.

Animal Terminology Table

Livestock species have specific terms for males, females, and castrated animals at different life stages.

Additional info: These terms are essential for proper communication in animal science and agriculture.

Saliva Production in Dairy Cows

Dairy cows produce large amounts of saliva to aid in digestion.

• Average saliva production: 40-50 gallons per day.