By-products constitute _of the live weight of cattle.
The correct answer and explanation is:
By-products constitute approximately 20% to 25% of the live weight of cattle.
Cattle by-products are the secondary materials and products obtained from the processing of cattle for meat production. These by-products are often overlooked, but they represent a significant portion of the total weight of the animal and contribute to various industries. The 20% to 25% estimate includes parts of the animal that are not typically consumed as meat but have important uses, including hides, bones, fats, and organs.
For example, hides are used to make leather, while bones can be processed into gelatin or used in pet food. Fats are rendered for use in products like soap or biofuels. Additionally, organs such as the liver, kidneys, and heart are used in various culinary traditions or for pharmaceuticals. Even blood can be processed into products like plasma and used in medical treatments.
The use of cattle by-products reduces waste, provides economic value, and supports industries such as textiles, cosmetics, pharmaceuticals, and agriculture. By-products also play a role in reducing the environmental impact of meat production by ensuring that as much of the animal as possible is utilized. As the demand for beef continues to grow, efficient use of cattle by-products helps maintain sustainability in the meat processing industry.
In summary, cattle by-products are an essential aspect of the meat industry. While the amount of by-products may vary depending on processing methods, they typically make up around 20% to 25% of the live weight, and their economic and environmental value is significant. These by-products are integral to a wide range of commercial products beyond just food.