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organochlorine: A chemical compound containing chlorine, used as an insecticide. Organochlorine insecticides are persistent and can accumulate in the environment. Farmers can benefit from using integrated pest management practices to reduce reliance on persistent chemicals and minimize environmental impact.

organically: Using only a restricted number of permitted pesticides and fertilizers in growing a crop. Organic practices promote healthier soil and reduce environmental impact. Farmers can benefit from organic certification to access premium markets and enhance farm sustainability.

oak: A deciduous or evergreen hardwood tree with strong, durable wood used in construction and furniture making. Farmers with oak trees on their land can benefit from sustainable timber harvesting, which provides additional income. Acorns from oak trees can also be used as supplemental livestock feed, offering a natural source of nutrition.

oilcake: A feedingstuff concentrate, high in protein, made from the residue of seeds which have been crushed to produce oil. Oilcake is a valuable livestock feed that can enhance nutrition and productivity. Farmers can benefit from integrating oilcake into animal diets to improve feed efficiency and growth rates.

onion fly: An insect pest whose maggots cause damage to onions by eating into the developing bulb. Effective pest management is crucial for protecting onion crops. Farmers can benefit from monitoring and controlling onion flies through integrated pest management practices to reduce crop losses.

ovary: One of two organs in a woman or female animal that produce ova or egg cells and secrete the female hormone oestrogen. Proper management of ovarian health is essential for successful breeding and reproductive efficiency. Farmers can benefit from monitoring and supporting ovarian function in livestock to enhance fertility and productivity.

oilseeds: Crops grown for the oil extracted from their seeds, such as oilseed rape or linseed. Oilseeds are valuable for their oil content and by-products like meal and cake, used in livestock feed. Farmers can benefit from growing oilseeds to diversify income streams and improve soil fertility.

ostrich: A large flightless bird raised on farms for its meat. Ostrich farming can provide farmers with high-value meat and leather products. Understanding the care, feeding, and management of ostriches can enhance farm diversification and profitability.

outcrossing: The process of bringing some new genetic variation (‘new blood’) into a flock or herd, usually by introducing a new male. Outcrossing can enhance genetic diversity and improve livestock health and productivity. Farmers can benefit from implementing outcrossing strategies to strengthen their herds and flocks.

ova: The plural form of ovum, referring to egg cells. Managing ova is crucial for optimizing breeding programs and reproductive efficiency in livestock. Farmers can benefit from understanding reproductive biology and implementing best practices in breeding management.