Climate-smart livestock nutrition in semi-arid Southern African agricultural systems

Climate change is disrupting the semi-arid agricultural systems in Southern Africa, where livestock is crucial to food security and livelihoods. This review evaluates the bioenergetic and agroecological scope for climate-adaptive livestock nutrition in the region. An analysis of the literature on cl...

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Main Authors: Felix Fushai, Teedzai Chitura, Oyegunle Emmanuel Oke
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-02-01
Series:Frontiers in Veterinary Science
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Online Access:https://www.frontiersin.org/articles/10.3389/fvets.2025.1507152/full
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author Felix Fushai
Teedzai Chitura
Oyegunle Emmanuel Oke
author_facet Felix Fushai
Teedzai Chitura
Oyegunle Emmanuel Oke
author_sort Felix Fushai
collection DOAJ
description Climate change is disrupting the semi-arid agricultural systems in Southern Africa, where livestock is crucial to food security and livelihoods. This review evaluates the bioenergetic and agroecological scope for climate-adaptive livestock nutrition in the region. An analysis of the literature on climate change implications on livestock nutrition and thermal welfare in the regional agroecological context was conducted. The information gathered was systematically synthesized into tabular summaries of the fundamentals of climate-smart bioenergetics, thermoregulation, livestock heat stress defence mechanisms, the thermo-bioactive feed components, and potentially climate-smart feed resources in the region. The analysis supports the adoption of climate-smart livestock nutrition when conceptualized as precision feeding combined with dietary strategies that enhance thermal resilience in livestock, and the adaptation of production systems to the decline in availability of conventional feedstuffs by incorporating climate-smart alternatives. The keystone potential climate-smart alternative feedstuffs are identified to be the small cereal grains, such as sorghum (Sorghum bicolor) and pearl millet (Pennisetum glaucum) as dietary energy sources, the native legumes, such as the cowpea (Vigna unguiculata) and the marama bean (Tylosema esculentum) as protein sources, wild browse Fabaceae trees such as Vachellia spp. and Colophospermum mopane, which provide dry season and drought supplementary protein, minerals, and antioxidants, the non-fabaceous tree species such as the marula tree (Sclerocarya birrea), from which animals consume the energy and electrolyte-rich fresh fruit or processed pulp. Feedstuffs for potential circular feeding systems include the oilseed cakes from the macadamia (Macadamia integrifolia) nut, the castor (Ricinus communis), and Jatropha (Jatropha curcas) beans, which are rich in protein and energy, insect feed protein and energy, primarily the black soldier fly larvae (Hermetia illucens), and microbial protein from phototrophic algae (Spirulina, Chlorella), and yeasts (Saccharomyces cerevisiae). Additives for thermo-functionally enhanced diets include synthetic and natural anti-oxidants, phytogenics, biotic agents (prebiotics, probiotics, synbiotics, postbiotics), and electrolytes. The review presents a conceptual framework for climate-smart feeding strategies that enhance system resilience across the livestock-energy-water-food nexus, to inform broader, in-depth research, promote climate-smart farm practices and support governmental policies which are tailored to the agroecology of the region.
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spelling doaj-art-f606557ceb8b49f795221e1da834da5b2025-02-11T14:01:05ZengFrontiers Media S.A.Frontiers in Veterinary Science2297-17692025-02-011210.3389/fvets.2025.15071521507152Climate-smart livestock nutrition in semi-arid Southern African agricultural systemsFelix Fushai0Teedzai Chitura1Oyegunle Emmanuel Oke2Department of Animal Science, Faculty of Science, Engineering and Agriculture, University of Venda, Thohoyandou, Limpopo, South AfricaDepartment of Animal Science, Faculty of Science, Engineering and Agriculture, University of Venda, Thohoyandou, Limpopo, South AfricaDepartment of Animal Physiology, Federal University of Agriculture, Abeokuta, NigeriaClimate change is disrupting the semi-arid agricultural systems in Southern Africa, where livestock is crucial to food security and livelihoods. This review evaluates the bioenergetic and agroecological scope for climate-adaptive livestock nutrition in the region. An analysis of the literature on climate change implications on livestock nutrition and thermal welfare in the regional agroecological context was conducted. The information gathered was systematically synthesized into tabular summaries of the fundamentals of climate-smart bioenergetics, thermoregulation, livestock heat stress defence mechanisms, the thermo-bioactive feed components, and potentially climate-smart feed resources in the region. The analysis supports the adoption of climate-smart livestock nutrition when conceptualized as precision feeding combined with dietary strategies that enhance thermal resilience in livestock, and the adaptation of production systems to the decline in availability of conventional feedstuffs by incorporating climate-smart alternatives. The keystone potential climate-smart alternative feedstuffs are identified to be the small cereal grains, such as sorghum (Sorghum bicolor) and pearl millet (Pennisetum glaucum) as dietary energy sources, the native legumes, such as the cowpea (Vigna unguiculata) and the marama bean (Tylosema esculentum) as protein sources, wild browse Fabaceae trees such as Vachellia spp. and Colophospermum mopane, which provide dry season and drought supplementary protein, minerals, and antioxidants, the non-fabaceous tree species such as the marula tree (Sclerocarya birrea), from which animals consume the energy and electrolyte-rich fresh fruit or processed pulp. Feedstuffs for potential circular feeding systems include the oilseed cakes from the macadamia (Macadamia integrifolia) nut, the castor (Ricinus communis), and Jatropha (Jatropha curcas) beans, which are rich in protein and energy, insect feed protein and energy, primarily the black soldier fly larvae (Hermetia illucens), and microbial protein from phototrophic algae (Spirulina, Chlorella), and yeasts (Saccharomyces cerevisiae). Additives for thermo-functionally enhanced diets include synthetic and natural anti-oxidants, phytogenics, biotic agents (prebiotics, probiotics, synbiotics, postbiotics), and electrolytes. The review presents a conceptual framework for climate-smart feeding strategies that enhance system resilience across the livestock-energy-water-food nexus, to inform broader, in-depth research, promote climate-smart farm practices and support governmental policies which are tailored to the agroecology of the region.https://www.frontiersin.org/articles/10.3389/fvets.2025.1507152/fullclimate-smart agricultureclimate-smart feedingclimate-smart feedstuffscircular feed usenutritional bioenergeticsheat stress
spellingShingle Felix Fushai
Teedzai Chitura
Oyegunle Emmanuel Oke
Climate-smart livestock nutrition in semi-arid Southern African agricultural systems
Frontiers in Veterinary Science
climate-smart agriculture
climate-smart feeding
climate-smart feedstuffs
circular feed use
nutritional bioenergetics
heat stress
title Climate-smart livestock nutrition in semi-arid Southern African agricultural systems
title_full Climate-smart livestock nutrition in semi-arid Southern African agricultural systems
title_fullStr Climate-smart livestock nutrition in semi-arid Southern African agricultural systems
title_full_unstemmed Climate-smart livestock nutrition in semi-arid Southern African agricultural systems
title_short Climate-smart livestock nutrition in semi-arid Southern African agricultural systems
title_sort climate smart livestock nutrition in semi arid southern african agricultural systems
topic climate-smart agriculture
climate-smart feeding
climate-smart feedstuffs
circular feed use
nutritional bioenergetics
heat stress
url https://www.frontiersin.org/articles/10.3389/fvets.2025.1507152/full
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AT oyegunleemmanueloke climatesmartlivestocknutritioninsemiaridsouthernafricanagriculturalsystems