Christopher Antwi
Department of Animal ScienceLife SciencesHealth Sciences

Christopher Antwi

34 Publications10 Research Themes26 Open Access
Research Overview & Focus

The researcher's research is centered around animal health and immunology, particularly within the domain of life sciences. Their work encompasses a broad spectrum of topics, including ruminant nutrition and digestive physiology, animal virus infections, livestock management, and agricultural studies. Key areas include feed evaluations in ruminants, microbial processes affecting rumen activity, and studies on diseases like SARS-CoV-2, emphasizing both biological and environmental factors. The researcher integrates molecular biology with food composition and human health, focusing on how these elements influence animal welfare and disease transmission. Their research underscores the importance of understanding microbial roles in animal health and the integration of diverse scientific disciplines to address challenges in agriculture and rural development.

Faculty Biography

Christopher Antwi obtained B.SC. (Agriculture) from the Kwame Nkrumah University of Science and Technology (KNUST), Kumasi in 2003 and Ph.D. (Animal Science) from the same University in 2010.  During his PhD studies, he was appointed as a Graduate Assistant where he assisted in the delivery of courses in the Faculty. In August 2010, he was employed as a lecturer and promoted to the rank of Senior Lecturer in August 2015 and has served as the Vice Dean of the Faculty of Agriculture (2018-2019) and the Head of the Department of Animal Science, KNUST (2017-2019). After his appointment as a lecturer, he has worked towards improving his professional standing through Post-doctoral Fellowship programmes and capacity building workshops namely, Norman Borlaug (University of California, Davis, USA) and Livestock Emission and Abatement Research Network (Grassland Research Center, Palmerston North, New Zealand. Through these Fellowship programmes, he acquired skills in the measurement of greenhouse gas (GHG) emissions from animal agriculture using respiratory chamber, Sulphur hexafluoride (SF6) and GreenFeed system; mitigation strategies and adaption to climate change. Since these training programmes, he has received invitations to support the training of scientists in Southern & Eastern Africa in GHG emissions and mitigation and as a guest speaker in international conferences on animal agriculture and climate change. His research areas are Greenhouse gas mitigation and emissions from animal agriculture, animal adaptation to climate change, fodder conservation and feed improvement for enhanced productivity of ruminant livestock. He has served as a reviewer on both International and Local Scientific journals (British Journal of Animal Science, Elsevier Journal); and grant review panels. (Royal Society – African Academy of Science’s Future Leaders–African Independent Research, Climate Impact Research Capacity and Leadership Enhancement CIRCLE etc) and have over thirty publications to his credit.Dr. Antwi has attracted several grants towards promotion of knowledge during his carrier. Notably among them are as follows: Consultant, AusAID - CORAF Crop-Livestock Project, GH? 23,330.00 to establish communal livestock grazing system.; Team leader - Livestock component of an AusAID Project on Crop-livestock Integration involving Ghana, Mali, The Gambia and Benin. Funding Agency: DFAT, Australia USD 1.2m - The project sought to develop and strengthen the crop –sheep and goats value chain in the sub-humid tropics of Ghana and Benin and semi-arid regions of Gambia and Mali, to increase agricultural productivity for poverty reduction and enhanced food security.;  KNUST-ENI Ghana Exploration and Production Limited’s Youth Capacity Building in Agriculture, Dormaa Ahenkro, Brong Ahafo Region, USD 2.64m - The project aims at building the production and post-harvest management capacities as well as the identification of businesses along the agricultural value chain for 800 youth in the Bono Region.; Team Leader, German- African Co-oporation Projects in Infectology; Coronavirus as a paradigm for the transmission interface between wildlife, livestock and humans, € 154,000 - The study was on an emerging zoonotic disease-causing organisms, coronaviruses (CoV) which are known to cause several mild respiratory diseases in livestock, wildlife and humans. It focused on the likelihood that livestock can be intermediary host for the transmission of COVs.; Consultant, Potential use of bamboo leaves as feed for livestock. Funding Agency: International Network for Bamboo and Rattan, € 6,866.07 - The study sought to undertake a feeding trial on sheep feed an unconventional bamboo leaves to establish its acceptability and applicability; Team Leader, Livestock feeding component of Skills Development Fund (SDF-COTVET) Project on Improving safety and profitability of indigenous processed dairy and meat products through skills training $311,000.00 - The grant was received to provide a platform for the training of milk producers and processors; and butchers and meat processors to produce safe and value-added dairy and meat products to urban and rural dwellers. Principal Investigator of a collaborative research involving Ghana, Nigeria and Uganda on “Unlocking the potential of Bambara groundnut towards food security and improved livelihoods”. Funding Agency: International Foundation for Science. USD 44, 000 - The project sought to strengthen and enhance the utilization of neglected crop “bambara groundnut” towards improving food security, nutrition and livelihoods of small holding farming communities.; Principal Investigator of collaborative research on “the effect of direct fed microbials on livestock production. Funding Agency:  BEST Environment Technologies Project, Canada CAD 77,262.

Key Research Themes (10)
Life Sciences

Agriculture and Rural Development Research

Health Sciences

Animal health and immunology

Life Sciences

Animal Virus Infections Studies

Health Sciences

Food composition and properties

Life Sciences

Genetic and phenotypic traits in livestock

Health Sciences

Hepatitis Viruses Studies and Epidemiology

Life Sciences

Livestock and Poultry Management

Life Sciences

Rabbits: Nutrition, Reproduction, Health

Life Sciences

Ruminant Nutrition and Digestive Physiology

Health Sciences

SARS-CoV-2 and COVID-19 Research

Publications (34)

Effects of breeds of cows and non-genetic factors on milk production and nutrient composition

Open Access
2025Genetic and phenotypic traits in livestockDOI: 10.4314/gjansci.v16i1.10

Cattle Demography, Farm Operations and Challenges Faced by Herdsmen in The Ejisu/Juaben Municipality of The Ashanti Region of Ghana

Open Access
2025Agriculture and Rural Development ResearchDOI: 10.4314/just.v1i2.1s

Impact of added enzyme-treated bran on the techno-functional properties of puffed-extruded sorghum snack

Open Access
2024Food composition and propertiesDOI: 10.1016/j.jcs.2024.104051

Nutritional evaluation and supplementation effect of bamboo leaves on intake, growth performance, and blood indices of Djallonké sheep fed <i>Cenchrus purpureus</i> and <i>Brachiaria decumbens</i> as basal diets

Open Access
2024Agriculture and Rural Development ResearchDOI: 10.4314/gjansci.v14i1.6

Effects of concentrate supplement on dry matter and water intake, nutrient digestibility and nitrogen balance of N’dama bull calves fed Napier grass basal diet

Open Access
2024Ruminant Nutrition and Digestive PhysiologyDOI: 10.4314/gjansci.v14i1.5

Farmers’ perceptions and willingness to adopt egg and snail shells as alternative calcium sources for poultry production in the Western region of Ghana

Open Access
2023Livestock and Poultry ManagementDOI: 10.1016/j.jafr.2023.100818

Effects of fodder tree leave supplementation for basal rice straw diet on rumen ammonia, pH, and degradation characteristics in sheep

Open Access
2023Ruminant Nutrition and Digestive PhysiologyDOI: 10.51227/ojafr.2023.43

Chemical composition and in vitro gas production of Brachiaria decumbens harvested at different stages of growth in the hot humid region

Open Access
2023Ruminant Nutrition and Digestive PhysiologyDOI: 10.51227/ojafr.2023.45

Carcass characteristics and meat quality of adult Sahelian does fed a basal diet of Brachiaria decumbens grass supplemented with probiotics and concentrates

Open Access
2023Ruminant Nutrition and Digestive PhysiologyDOI: 10.1080/23311932.2023.2225259

Effects of supplementing rice straw with two fodder tree leaves and their combinations on voluntary feed intake, growth, and nitrogen utilization in sheep

Open Access
2023Ruminant Nutrition and Digestive PhysiologyDOI: 10.1093/tas/txad004

Nutrient profiling of ruminant feed resources in Ghana

Open Access
2022Ruminant Nutrition and Digestive PhysiologyDOI: 10.1016/j.sciaf.2022.e01495

Sero-molecular epidemiology of hepatitis E virus in pigs and human contacts in Ghana

Open Access
2021Hepatitis Viruses Studies and EpidemiologyDOI: 10.1186/s42522-021-00043-w

Seasonal variation in chemical composition and in-vitro gas production of woody plant species of semi-arid condition of Namibia

2021Ruminant Nutrition and Digestive PhysiologyDOI: 10.1007/s10457-021-00643-5

The ‘GreenFeed’ automated methane measurement system to determine enteric methane emissions from ruminants..

2020Ruminant Nutrition and Digestive Physiology

Molecular-based cross-species evaluation of bovine coronavirus infection in cattle, sheep and goats in Ghana

Open Access
2020Animal Virus Infections StudiesDOI: 10.1186/s12917-020-02606-x

Molecular-based cross-species evaluation of bovine coronavirus infection in cattle, sheep and goats in Ghana.

Open Access
2020Animal Virus Infections StudiesDOI: 10.21203/rs.3.rs-24727/v5

Molecular-based cross-species evaluation of bovine coronavirus infection in cattle, sheep and goats in Ghana.

Open Access
2020Animal Virus Infections StudiesDOI: 10.21203/rs.3.rs-24727/v4

Molecular-based cross-species evaluation of bovine coronavirus infection in cattle, sheep and goats in Ghana.

Open Access
2020Animal Virus Infections StudiesDOI: 10.21203/rs.3.rs-24727/v3

Molecular-based cross-species evaluation of bovine coronavirus infection in cattle, sheep and goats in Ghana.

Open Access
2020Animal Virus Infections StudiesDOI: 10.21203/rs.3.rs-24727/v2

Molecular-Based Cross-Species Evaluation of Bovine Coronavirus Infection in Cattle, Sheep and Goats in Ghana.

Open Access
2020Animal Virus Infections StudiesDOI: 10.21203/rs.3.rs-24727/v1

Direct Fed Microbials and Their Influence on Blood Biochemistry, Immunology of Lambs and Escherichia Coli Count

Open Access
2020Animal health and immunologyDOI: 10.26717/bjstr.2020.26.004401

Intake, digestibility and nitrogen balance of sheep fed bambara groundnut haulm as supplement to a maize stover basal diet

Open Access
2020Ruminant Nutrition and Digestive PhysiologyDOI: 10.1016/j.sciaf.2020.e00308

Manure characteristics of small ruminants fed agro by-products in the guinea savannah agro-ecological zone of Ghana

Open Access
2019Agriculture and Rural Development ResearchDOI: 10.4314/gjas.v54i1.7

Feeding differing direct-fed microbials and its influence on growth and haematological parameters of growing lambs1

Open Access
2019Animal health and immunologyDOI: 10.1093/tas/txz053

Potential Intermediate Hosts for Coronavirus Transmission: No Evidence of Clade 2c Coronaviruses in Domestic Livestock from Ghana

Open Access
2019SARS-CoV-2 and COVID-19 ResearchDOI: 10.3390/tropicalmed4010034

PSXIV-6 Feeding differing direct fed microbials and its influence on growth and haematological parameters of growing lambs.

2018Ruminant Nutrition and Digestive PhysiologyDOI: 10.1093/jas/sky404.974

0689 Greenhouse gas emissions and mitigation in the West African subregion: Challenges and opportunities

2016Agriculture and Rural Development ResearchDOI: 10.2527/jam2016-0689

Enteric methane and carbon dioxide emissions measured using respiration chambers, the sulfur hexafluoride tracer technique, and a GreenFeed head-chamber system from beef heifers fed alfalfa silage at three allowances and four feeding frequencies1–3

2016Ruminant Nutrition and Digestive PhysiologyDOI: 10.2527/jas.2016-0646

Methane emissions differ between sheep offered a conventional diploid, a high-sugar diploid or a tetraploid perennial ryegrass cultivar at two allowances at three times of the year

2016Ruminant Nutrition and Digestive PhysiologyDOI: 10.1071/an15597

Development of methane emission factors for enteric fermentation in cattle from Benin using IPCC Tier 2 methodology

Open Access
2014Ruminant Nutrition and Digestive PhysiologyDOI: 10.1017/s1751731114002626

Effect of pesticides applied in cowpea production on rumen microbial fermentation of cowpea haulms as reflected in <i>in vitro</i> gas production

Open Access
2014Ruminant Nutrition and Digestive PhysiologyDOI: 10.4314/sajas.v44i3.2

Feeding lucerne silage to beef cattle at three allowances and four feeding frequencies affects circadian patterns of methane emissions, but not emissions per unit of intake

2014Ruminant Nutrition and Digestive PhysiologyDOI: 10.1071/an14235

Feeding Graded Levels of an Improved Cultivar of Cowpea Haulm as Supplement for Rams Fed Maize Stover Diet

Open Access
2013Ruminant Nutrition and Digestive PhysiologyDOI: 10.3923/ijar.2013.87.93

Improved dual purpose cowpea lines as ruminant feed: yield, nutrient changes in storage and pesticide residue in cowpea haulms on the activities of rumen microorganisms

2008Rabbits: Nutrition, Reproduction, HealthDOI: 10.3920/9789086865789_376
Academic Metrics
DepartmentDepartment of Animal Science
Total Publications34
Research Themes10
Open Access Papers26

Department of Animal Science

Kwame Nkrumah University of Science and Technology

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