I Al'shardzhabi, E R Tsygankova
[The prevalence of hearing impairment among the elementary school pupils in the city of Sana, the capital of Yemen]
Vestnik otorinolaringologii
smallscale poultry production systems mostly found rural resourcepoor areas often also experience food insecurity accessible vulnerable groups society provide households income nutritionallyrich food sources however also improve food security indirect ways enhancing nutrient utilisation recycling environment contributing mixed farming practices contributing womens empowerment enabling access healthcare education may contribute several sustainable development goals future food security maintaining biodiverse genomes extensive smallscale poultry production systems significant impediments achieving contributions disease predation reduced improved agricultural livestock extension community animal health networks smallscale intensive systems feed price fluctuations inadequate biosecurity major constraints