Emmanuel Lartey Kwame Osafo

Animal Science

About

Emmanuel Osafo is Professor in the Department of Animal Science, Kwame Nkrumah University of Science and Technology (KNUST). He served five years (2008-2013) as Head of the Department of Animal Science, KNUST, Kumasi and elected Vice Dean of the Faculty of Agriculture (2010-2014). His area of specialization is Ruminant Nutrition and Production and has over thirty-five years’ experience teaching and researching in animal agriculture in Ghana and Africa. Emmanuel holds a PhD (Agriculture) from the University of Reading, England and is a member of the British Society of Animal Science as well as a member of the Ghana Society of Animal Production. His teaching experience includes teaching both undergraduate and postgraduate courses in animal production and nutrition with emphasis on ruminants.The research findings cover mainly work done in Ethiopia, Nigeria, Tanzania and Ghana. Emmanuel Osafo has authored or co-authored over 100 Journal and Conference articles and 16 other publications. His publications have been mainly on evaluating straws as feed for ruminants and he has been involved with a team of researchers who developed the ‘self-selection’ technology for improving intake by ruminants. He has supervised several Undergraduate, Postgraduates including three PhDs and 12 Master’s theses. He has experience conducting training seminars for smallholder dairy farmers and local milk processors to improve on the efficiency of their production enterprises and indeed has produced a training manual together with his colleagues for this purpose. He has experience in successfully managing research grants for DFID, CARGS, Skills Development Fund (SDF) and INBAR. He has travelled extensively and attended and participated in several Animal related International Conferences.

Research Summary

(inferred from publications by AI)

The researcher has made significant contributions across a broad spectrum of topics related to ruminant health and sustainability. Their work emphasizes the integrated use of various interventions to enhance ruminant performance, including supplementing with compounds like Feenulophellin and Vachellia, which improve both nutritional and metabolic efficiency. The research also explores the application of ruminant-based crops and feed, such as Napier grass and Bambusa vulgaris, in improving agricultural productivity. In the context of soil health, studies on Moringa oleifera reveal the influence of species diversity on nutrient content and crop residue analysis. Additionally, their work delves into animal nutrition by examining ethanol metabolism and its effects on intake, growth, and utilization of ruminants. The researcher's findings highlight genetic diversity as a critical factor in ruminant health, influenced by both environmental and genetic factors. Furthermore, they address food safety challenges through risk assessment studies involving fed milk with antimicrobial drug residues, aiming to enhance food quality while minimizing risks. Their research underscores the role of bioenergy crops, such as sorghum stover, in addressing global agricultural needs while promoting sustainable practices. This integrated approach across nutrition, agriculture, and environmental science provides a holistic framework for improving ruminant health and ensuring food safety.

Research Themes

All (50 Papers)

Life Sciences (46 Papers)

Health Sciences (1 Papers)

Physical Sciences (3 Papers)

All Papers

Herbage yield and chemical composition of four varieties of Napier (Pennisetum purpureum) grass harvested at three different days after planting(2010)

Seasonal variation in chemical composition and in-vitro gas production of woody plant species of semi-arid condition of Namibia(2021)

Carcass characteristics and meat quality of adult Sahelian does fed a basal diet of Brachiaria decumbens grass supplemented with probiotics and concentrates(2023)

Effects of amount offered and chopping on intake and selection of sorghum stover by Ethiopian sheep and cattle(1997)

Evaluation of the Feeding Value of Palm Press Fibre Using In Vitro Digestibility Techniques(2001)

Variety, harvest date after planting and plant fraction of Napier grass influence in vitro gas production(2013)

Feeding Graded Levels of an Improved Cultivar of Cowpea Haulm as Supplement for Rams Fed Maize Stover Diet(2013)

Effect of Vachellia erioloba and Dichrostachys cinerea pod supplementation on performance of does and kids of Namibian Caprivi and Ovambo indigenous goats(2019)

Effect of pesticides applied in cowpea production on rumen microbial fermentation of cowpea haulms as reflected in in vitro gas production(2014)

Sorghum stover as a forage: cultivar effects on yield and effect of chopping, amounts offered, supplementation and variety on intake, selection and liveweight gain in Ethiopian sheep and cattle. PhD thesis. University of Reading, Reading, UK.(1993)

Effect of solid state fermentation using oyster mushroom on the chemical composition of Brachiaria mulato II, Bambusa vulgaris, Napier grass and Panicum, four Tropical forages, incubated for 60 days(2023)

Chemical composition and in vitro gas production of Brachiaria decumbens harvested at different stages of growth in the hot humid region(2023)

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(2024)

Seasonal variation in macro and micro mineral contents of browse plants consumed by ruminants in Namibia(2025)

A nationwide quality improvement project to accelerate Ghana's progress toward Millennium Development Goal Four: design and implementation progress(2012)

Risk of Exposure to Marketed Milk with Antimicrobial Drug Residues in Ghana(2007)

Risk Factors in the Hygienic Quality of Milk in Ghana(2007)

Rabbit Production in Selected Urban Areas of Southern Ghana: Status and Implications for Policy and Research(2012)

Studies on the feeding value of agro-industrial by-products: Strategies for improving the utilisation of cocoa-pod-based diets by ruminants(1988)

Growth performance, nutrient digestibility and carcass characteristics of grower rabbits fed graded levels of Bamboo (Bambusa vulgaris) leaf meal(2023)

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(2008)

Additive effects of Bridelia ferruginea leaf meal as a partial replacement for soybean meal on nutrients digestibility, growth performance, and carcass characteristics of weaner rabbits(2024)

Dose-dependent effects of biochar inclusion on growth, hematological, manure and carcass characteristics of rabbits(2024)

Manure characteristics of small ruminants fed agro by-products in the guinea savannah agro-ecological zone of Ghana(2019)

Bamboo Leaves: Hope for Dry Season Ruminant Livestock Production in Ghana(2022)

Indigenous markets for dairy products in Africa: trade-offs between food safety and economics(2001)

Feeding sorghum stover to Ethiopian sheep and cattle: effect of chopping and amount offered on intake and selection(1993)

Effect of Probiotic (RE3) Supplement on Growth Performance, Diarrhea Incidence and Blood Parameters of N'dama Calves(2017)

Sorghum stover as ruminant food in Ethiopia: effect of cultivar, site of growth, pre-harvest leaf stripping and storage on yield and morphology(1993)

Feeding sorghum stover to Ethiopian, yearling cattle: effects of amount of stover offered and cottonseed cake supplement on intake and growth(1992)

Feeding sorghum stover to Ethiopian sheep and cattle: effect of chopping and amount offered on intake and selection. pp. 204-206. In: Animal Production in Developing Countries. Occasional Publication No 16. Gill, M., Owen, E., Pollott, G.E. and Lawrence, T.L.J. (Eds.). British Society of Animal Production.(1994)

Use of chopped sorghum stover as feed for Ethiopian sheep: effects of sorghum variety and amount offered on intake, digestibility and live-weight change.(1993)

Feeding sorghum stover to ethiopian sheep: effect of chopping and amount offered on growth, intake and selection(1991)

Indigenous markets for dairy products in Africa: Trade-offs between food safety and economics. pp. 19-24. In: Proceedings of Symposium on Dairy Development in the Tropics, Utrecht University of Netherlands, The Netherlands. 2 November 2001.(2002)

Improving the use of sorghum stover as ruminant feed in Ethiopia. Project Completion Summary Sheet.(1993)

Feeding chopped sorghum stover to Ethiopian sheep: effects of sorghum variety and amount offered on intake, disgestibility and live-weight change.(1993)

Impact of reduced dietary crude protein levels and phytase enzyme supplementation on growth response, slurry characteristics, and gas emissions of growing pigs(2020)

Effect of high concentration of phytase supplementation on energy and nutrient digestibility of growing pigs fed with reduced dietary crude protein balanced with limiting amino acids(2020)

Reproductive response of West African Dwarf does to prostaglandin administration.(2009)

THE EFFECTS OF UNDERNUTRITION DURING PREGNANCY ON THE RELATIONSHIP BETWEEN MATERNAL PLASMA METABOLITES CONCENTRATIONS AND LAMB BIRTH WEIGHT OF ADOLESCENT DJALLONKE SHEEP(2007)

Some blood indices in finisher broiler chickens fed cocoa pod husk ( Theobroma cacao L.) fermented with Pleurotus ostreatus or treated with enzymes as ingredients in their diets(2014)

Effects of supplementing probiotics and concentrate on intake, growth performance and blood profile of intensively kept Sahelian does fed a basal diet of Brachiaria decumbens grass(2023)

Effect on harvesting at different stages of growth and long-term storage on phenolics in sorghum stover(1993)

Stall-feeding sorghum stover. 2 pp. Natural Resources International Limited, Aylesford, UK. [Field](1998)

Improving livelihoods by increasing the shelflife of 'wagashi', a West African soft cheese using Xylopia aethipica, boiling and brine.(2004)

Improving livelihoods by increasing the shelflife of 'wagashi', a West African soft cheese using Xylopia aethipica, boiling and brine. pp. 248-249. Responding to the Increasing Global Demand for Animal Products: Programme and Summaries 117.(2004)

Evaluation of cereal crop residues: influence of species, variety and environment on nutritive value. Final Technical Report - Appendicies Part 1. October 1987-March 1991. AFRC Institute of Grassland and Environmental Research, UK. 191 pp.(1992)

Seasonal Variation in Macro and Micro Mineral Contents of Woody Plants Consumed by Ruminants in Namibia(2025)

Sorghum stover as ruminant feed in Ethiopia: effect of cultivar, site of growth, pre-harvest leaf stripping and storage on yield and morphology. pp. 188-198. In: Animal Production in Developing Countries. Occasional Publication No 16. Gill, M., Owen, E., Pollott, G.E. and Lawrence, T.L.J. (Eds.).(1994)

Collaboration Network

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About This Profile

This profile is generated from publicly available publication metadata and is intended for research discovery purposes. Themes, summaries, and trajectories are inferred computationally and may not capture the full scope of the lecturer's work. For authoritative information, please refer to the official KNUST profile.