CH 7: By-products of Meat Animals

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By-products

Products of less value than the major product (meat cuts)

*True or False: The value of by-products can account for as much as 8-10% of the total value of a fed steer.

True

*What does the U.S. considered as the primary by-products?

Primarily hides, fat, bones, internal organs

*What two categories are by-products commonly classified into?

Edible and inedible products

• animals that die during their productive life do not go into human edible products

*What is often the most valuable by-product?

Hide

*Edible by-products

• Variety meats (internal organs) (Ex: liver, heart, cheek meat, oxtail, pig’s feet, tongue, tripe (stomach lining), chitlins (intestines), sweetbread (thymus gland and pancreas)

• An average slaughtered steer can produce 45lbs of variety meats

• U.S. per capita consumption is 9lb, thus some are exported

• Fats used to produce lard and tallow (used in soaps, lubricants, feed, and fatty acids for inedible)

• Large export market

*Inedible by-products

• Hides are often exported (not big industry in U.S.)

• Shoe leather is a primary use of hides

• Pet food is $8 bil worth of by-products used annually

• Rendered fats and oils for livestock and poultry feed formulations (makes it less dusty)

*Rendering Industry

Recycles offal, fat, bone, meat scraps, and entire animal carcasses

• sources include packing and processing plants, butcher shops, restaurants, etc.

*What are the two primary products of the renderer’s art?

Animal fat and animal protein

• fatty acids are used in cosmetics, paints, deodorants, polishes, cleaners, etc.

• Protein supplements for livestock, meat and bone meal, blood meal usually for monogastric animals

*Poultry by-product meal (PBPM)

Is high in protein and contains 12-14% fat

• consists of ground dry-rendered clean parts of the carcasses of slaughtered poultry, such as heads, feet, undeveloped eggs, intestines, etc.

• Know it is high in protein and fat

*How much do rendering plants prevent materials from entering landfills each year?

56 billion pounds each year

*True or False: Without the rendering process, data show that all landfills in the U.S. would be filled over capacity in less than four years.

True

*What are examples are edible and inedible by-products?

Edible: Variety meats (liver, heart, tongue, tripe, etc.)

Inedible: Hides and other internal organs (lungs)