... Canada, the European Union, Finland, Ireland, the Netherlands, Norway, Denmark, the United Kingdom, the United States of America and the World Bank.22 The impact of fodder trees on milk production ... Wanjiku The impact of fodder trees on milk production and income among smallholder dairy farmers in East Africa and the role of research12 The impact of fodder trees on milk production and income ... number of calliandra trees they planted. On the other hand, age, size of household, and size of landholdings were not related to adoption. The study concluded that access to extension and participation...