This book argues that genetic resources have a critical role to play in feeding the world in the face of climate change and that more needs to be done to study, preserve and utilize biological diversity. It argues that crops, livestock, forest trees and aquatic organisms capable of surviving and producing in a changing climate will be needed and that policies.
Livestock management
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Genetic make-up influences fitness and adaptation and determines an animal’s tolerance to shocks such as temperature extremes, drought, flooding, pests and diseases. Adaptation to harsh environments includes heat tolerance and an animal’s ability to survive, grow and reproduce in the presence of poor seasonal nutrition as well as parasites and diseases. Selective breeding is a technology that aims to improve the value of animal genetic diversity. This technology can be applied to all types of livestock, including cattle, sheep, goats, alpacas and guinea pigs.
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A herder from the Tillabéry region standing in front of his fodder storage
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Livestock are important sources of methane. The United States Environmental Protection Agency calculated that livestock, especially ruminants such as cattle and sheep, account for approximately one-third of global anthropogenic emissions of methane (US-EPA, 2006). The methane is produced primarily through the process of enteric fermentation and released through the process of eructation (Crutzen, 1995). In addition, N2O emissions are generated by livestock through secretion of nitrogen through the urine and faeces.