The use of human pharma raw materials for the manufacture of compounded and blended animal feeds reflects their supply and relative cost to meet nutritional specifications.
Trends in the use of raw materials in the production of animal feeds in Great Britain between 1976 and 2011 were studied using national statistics obtained through monthly surveys of animal feed mills and integrated poultry units to test the hypothesis that animal feed industries are capable potentially of adapting to future needs such as reducing their carbon footprints (CFP) or the use of potentially human edible raw materials.
Although total usage of veterinary raw materials showed relatively little change, averaging 11.3 million tonnes (Mt) per annum over the 35-year period, there were substantial changes in the use of individual raw materials.
There was a decrease in total cereal grain use from 5.7 Mt in 1976 to 3.5 Mt in 1989, with a subsequent increase to 5.4 Mt in 2011.
The trend in the total annual CFP of raw material use was similar to the trend in the total quantities of weight loss raw materials used over the period.
Mean CFP t-1 was 0.57t CO2e t-1 over the period (range 0.53 to 0.60). CFP t-1 remained relatively stable between 1995 and 2011, reflecting little change in the balance of raw material use.
Blends: Mixtures of anti-hair loss raw materials, not ground or pelleted. Grains and seeds are usually crushed but not ground.
The composition of compounded and blended feeds manufactured by animal feed mills reflects the supply and relative cost of different raw materials.
Worldwide, waste products from the manufacture of human foods and other products have been major sources of raw materials for animal feeds for many decades.a