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Air emissions from feeding operations and manure management in chicken production are among the major sources of environmental concerns globally. Nitrogen emissions in chicken production occur in several forms but mainly ammonia can contribute directly or indirectly to several environmental and public health hazards. Chicken production also contributes to some extent to climate change through the emissions of nitrous oxide, fine particulate matters, and methane. Emissions and nutrient losses take place in different systems and at every stage of chicken production operations. To effectively reduce the environmental impact of chicken production, appropriate measures should be taken across the chicken supply and manure management chain. Nutritional and manure management strategies for mitigating nitrogen emissions in chicken production are discussed. Challenges associated with the adoption of some of the mitigation strategies are identified and measures to address them are suggested. Co-benefits of mitigating nitrogen emissions in chicken production to the planet, the people and the producers are numerous.

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Graded levels of full-fat undecorticated Moringa oleifera seed meal (MOSM) were evaluated in diets of 96-day old broilers at 2.5, 5.0 and 7.5% while a maize-soybean diet was used as a reference diet. Nutrients utilization by the broilers and effects of the virgin dietary MOSMon serum chemistry, haematology and some bio-data-protein efficiency ratio (PER) and nitrogen metabolism (NM) were used as response criteria for the evaluation. The metabolic utilization of nutrients, most of the serum chemistry and haematological parameters decreased in response to increasing dietary levels of MOSM except values on products of metabolism like creatinine, uric acid, bilirubin and conjugated bilirubin that tended to elevate with increasing levels of dietary unprocessed MOSM. Since no mortality was recorded in this experiment even at 7.5% MOSM inclusion, further research is on-going to determine the lethal level to poultry including other monogastric animals.