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Acacia: A species of tree often grown for its pretty leaves and blossoms. Acacias can be valuable for agroforestry systems, providing shade and improving soil quality.

AFB: American foul brood. A disease affecting bees that is caused by a bacterial parasite of the Bacillaceae family that infests the larvae. Abbr AFB. Managing AFB is crucial for beekeepers to maintain healthy and productive hives.

Angeln: A German dual-purpose breed of cattle, red or brown in color, with black hooves. Raising Angeln cattle provides farmers with valuable livestock for milk and meat production.

acceptable daily intake: The quantity of a substance such as a nutrient, vitamin, additive or pollutant which a person or animal can safely consume daily over their lifetime. Understanding acceptable daily intake levels helps farmers ensure the safety of their produce for consumers.