Article
Agriculture, Dairy & Animal Science
F. J. M. King, C. Visser, C. Banga
Summary: Knowledge of genetic variability among cattle populations is essential to gain insight into the adaptation mechanisms and to support the conservation of genetic resources. This study investigated the levels of genetic diversity and relationships between indigenous cattle breeds using genotyping techniques. The results showed that there was little genetic distance between Nguni populations, while Tuli and Boran populations were more divergent. Additionally, several genes related to adaptation and production traits were identified.
Article
Multidisciplinary Sciences
Andualem Tenagne, Mengistie Taye, Tadelle Dessie, Bekalu Muluneh, Damitie Kebede, Getinet Mekuriaw Tarekegn
Summary: The aim of this research was to determine the morphometric and potentially adaptive characteristics of cattle populations in Ethiopia. The study found significant associations between body measurements and factors such as sex, location, and agro-ecology. The study also identified four major breed types based on morphological characteristics.
Article
Environmental Sciences
Walter Leal Filho, Jelena Barbir, Juliet Gwenzi, Desalegn Ayal, Nicholas P. Simpson, Lydia Adeleke, Behiwot Tilahun, Innocent Chirisa, Shine Francis Gbedemah, Daniel M. Nzengya, Ayyoob Sharifi, Theobald Theodory, Sidat Yaffa
Summary: Africa is highly affected by climate change but also rich in Indigenous and Local Knowledge (ILK). This paper explores the use of ILK in climate change adaptation in Africa and suggests that ILK is critical for effective adaptation outcomes and preserving the biocultural heritage value in Africa.
ENVIRONMENTAL SCIENCE & POLICY
(2022)
Article
Agriculture, Dairy & Animal Science
Mohammad Shamsul Alam Bhuiyan, Soo-Hyun Lee, Sheikh Mohammad Jahangir Hossain, Gautam Kumar Deb, Most Farhana Afroz, Seung-Hwan Lee, Abul Kashem Fazlul Haque Bhuiyan
Summary: This study investigated genetic variability and population structure of indigenous cattle genetic resources in Bangladesh using Illumina Bovine SNP50K BeadChip genotyped data. The findings showed low genetic diversity, distinct genetic structure, and weak population differentiation among the six indigenous cattle populations. Admixture and phylogenetic analysis highlighted historical gene flow among the populations. These results provide comprehensive genetic information for the conservation and breeding research of indigenous cattle populations in Bangladesh.
Article
Biodiversity Conservation
Jinqiang Quan, Yongqing Li, Yonghui Yang, Tianliang Yang, Yuzhu Sha, Yuan Cai, Ting Jiao, Jianping Wu, Shengguo Zhao
Summary: The study analyzed the mtDNA D-loop sequences of 1163 Chinese indigenous cattle to determine their maternal origin and population genetic structure, prioritizing conservation evaluations based on a population genetic model. Three maternal origins or domestication events were identified among Chinese indigenous cattle, with various levels of genetic diversity and contributions to the richness of genetic resources. The research provides a scientific basis and effective evaluation methods for the protection of genetic resources of indigenous livestock varieties.
GLOBAL ECOLOGY AND CONSERVATION
(2021)
Article
Chemistry, Multidisciplinary
Mhlangabezi Slayi, Leocadia Zhou, Ishmael Festus Jaja
Summary: This study examined how farmers in vulnerable communities in the Eastern Cape, South Africa perceive and are willing to address drought-related issues in their communal cattle herds. By collecting qualitative and quantitative data through interviews and surveys with 250 farmers, it was found that although farmers are aware of the impact of drought on their herds and livelihoods, they face challenges such as limited access to water and grazing land, lack of infrastructure, and insufficient government support. However, farmers demonstrate resilience and adaptability by employing strategies such as destocking, shifting to alternative livelihoods, and seeking support from their social networks. The study also highlights that farmers are willing to collaborate with other stakeholders and are open to interventions that can enhance their adaptive capacity.
APPLIED SCIENCES-BASEL
(2023)
Article
Multidisciplinary Sciences
Jaber Rahimi, Edwin Haas, Ruediger Grote, David Kraus, Andrew Smerald, Patrick Laux, John Goopy, Klaus Butterbach-Bahl
Summary: In the Sahelian and Sudanian agro-ecological zones of West Africa, there has been a shift from surplus to deficit in feed availability over the past 40 years. This change was primarily driven by a decrease in total feed supply and an increase in feed demand, influenced by climate change and an expanding livestock population.
SCIENTIFIC REPORTS
(2021)
Article
Biochemistry & Molecular Biology
Kwondo Kim, Donghee Kim, Olivier Hanotte, Charles Lee, Heebal Kim, Choongwon Jeong
Summary: Present-day African cattle have a unique genetic profile resulting from a mixture of Bos taurus and Bos indicus populations. Research suggests that the earliest domestic cattle in Africa likely had a significant contribution from an extinct African aurochs lineage, and the indicine ancestry of African cattle is closely related to both North Indian and Southeast Asian indicine breeds.
MOLECULAR BIOLOGY AND EVOLUTION
(2023)
Review
Green & Sustainable Science & Technology
Dominique Ouedraogo, Albert Soudre, Bernadette Yougbare, Salifou Ouedraogo-Kone, Bienvenue Zoma-Traore, Negar Khayatzadeh, Amadou Traore, Moumouni Sanou, Gabor Meszaros, Pamela Anna Burger, Okeyo Ally Mwai, Maria Wurzinger, Johann Solkner
Summary: Cattle play a crucial role in West Africa, with various breeding strategies being implemented to improve their productivity. Challenges include defining realistic breeding objectives and securing stakeholder involvement in breeding programs.
Article
Agriculture, Dairy & Animal Science
Ning Huang, Lihong Zhao, Jinpeng Wang, Qiang Jiang, Zhihua Ju, Xiuge Wang, Chunhong Yang, Yaping Gao, Xiaochao Wei, Yaran Zhang, Yao Xiao, Wenhao Liu, Shaoxiong Lu, Jinming Huang
Summary: This study provides new insights into genetic adaptations to cold environments in indigenous Chinese cattle by analyzing the selection signatures in their genomes. It reveals that local cattle breeds have adapted to extremely cold temperatures through natural and artificial selection. The study identifies several candidate genes and alleles associated with cold adaptation and highlights the complexity of genetic adaptation among different cattle breeds. This research contributes to our understanding of how cattle adapt to cold climates and furthers our knowledge of genetic variation in response to temperature changes.
JOURNAL OF ANIMAL SCIENCE
(2023)
Article
Agriculture, Dairy & Animal Science
E. N. Nwachukwu, D. J. U. Kalla, H. O. Ukwu, C. C. Ogbu, J. Ezea, U. H. Udoh, O. O. Ekumankama
Summary: This study evaluated the genetic relatedness, diversity, and population structure of four indigenous cattle breeds in Nigeria. The results showed genetic differentiation among the breeds and suggested the potential for developing improved breeds through hybridization to enhance beef production and disease resistance.
TROPICAL ANIMAL HEALTH AND PRODUCTION
(2022)
Article
Biotechnology & Applied Microbiology
Nader Forough Ameri, Hasan Moradian, Ali Esmailizadeh Koshkoiyeh, Mahdiyeh Montazeri, Elaheh Rostamzadeh Madabi, Masood Asadi Fozi
Summary: This study reveals the genetic diversity of indigenous cattle breeds in Iran and identifies candidate genomic regions associated with important traits. The findings have implications for future breeding and conservation efforts.
Article
Environmental Sciences
Ariane Amin, Abdrahmane Wane, Inza Kone, Michel Krah, Ange N'Goran
Summary: The impacts of climate change on agricultural systems in West Africa have been extensively analyzed. This study focuses on the impacts of climate change on cattle trade in Mali, Burkina Faso, and Cote d'Ivoire. The results show that climate shocks in Sahel cattle-exporting countries can significantly decrease cattle trade flow, which could weaken regional economic integration and raise the risk of food insecurity.
REGIONAL ENVIRONMENTAL CHANGE
(2023)
Article
Environmental Studies
Keisuke Okada, Takayoshi Shinkuma
Summary: The resource curse has garnered attention from economists and policymakers, and the Extractive Industries Transparency Initiative (EITI) has been proposed as a solution to improve transparency and accountability in resource-rich countries. This study examines the impact of EITI on natural resource rents, and finds that monitoring both politicians and resource companies under EITI can effectively prevent illegal transactions. Using data from sub-Saharan African countries, the study shows that EITI implementation increases total natural resource rents and mineral rents, but has no significant impact on oil and natural gas rents.
Review
Engineering, Civil
Timothy Dube, Dylan Seaton, Cletah Shoko, Cheikh Mbow
Summary: This paper provides an overview of the progress made in remote sensing of water resources in Africa. The study highlights the remarkable advancements in various applications such as precipitation estimation, land surface temperature analysis, and water quality evaluation. It also identifies the challenges faced and the knowledge gaps that need to be addressed for further advancements in this field.
JOURNAL OF HYDROLOGY
(2023)
Article
Biochemistry & Molecular Biology
Wen Luo, Jiahui Chen, Limin Li, Xueyi Ren, Tian Cheng, Shiyi Lu, Raman Akinyanju Lawal, Qinghua Nie, Xiquan Zhang, Olivier Hanotte
CELL DEATH AND DIFFERENTIATION
(2019)
Article
Genetics & Heredity
Abulgasim Ahbara, Hussain Bahbahani, Faisal Almathen, Mohammed Al Abri, Mukhtar Omar Agoub, Ayelle Abeba, Adebabay Kebede, Hassan Hussein Musa, Salvatore Mastrangelo, Fabio Pilla, Elena Ciani, Olivier Hanotte, Joram M. Mwacharo
FRONTIERS IN GENETICS
(2019)
Article
Biotechnology & Applied Microbiology
Irene Bassano, Swee Hoe Ong, Maximo Sanz-Hernandez, Michal Vinkler, Adebabay Kebede, Olivier Hanotte, Ebele Onuigbo, Mark Fife, Paul Kellam
Article
Multidisciplinary Sciences
Salvatore Mastrangelo, Hussain Bahbahani, Bianca Moioli, Abulgasim Ahbara, Mohammed Al Abri, Faisal Almathen, Anne da Silva, Ibrahim Belabdi, Baldassare Portolano, Joram M. Mwacharo, Olivier Hanotte, Fabio Pilla, Elena Ciani
Article
Genetics & Heredity
Abdulfatai Tijjani, Yuri Tani Utsunomiya, Arinze G. Ezekwe, Oyekanmi Nashiru, Olivier Hanotte
FRONTIERS IN GENETICS
(2019)
Article
Agriculture, Dairy & Animal Science
Sumaya Kambal, Amina E. Abdelrahim, Olivier Hanotte, Ryo Nakao, Abeer M. Alkhaibari, Bashir Salim
Summary: The study found that there is high genetic polymorphism in maternal genetic diversity in the Western Baggara cattle breed, specifically in the Nyalawi and Daeinawi populations, with low genetic differentiation between populations. Approximate Bayesian computation showed a larger maternal effective population size in Nyalawi compared to Daeinawi, and both populations experienced population expansions before the arrival of zebu into the continent.
JOURNAL OF ANIMAL BREEDING AND GENETICS
(2022)
Article
Biochemistry & Molecular Biology
Almas A. Gheyas, Adriana Vallejo-Trujillo, Adebabay Kebede, Maria Lozano-Jaramillo, Tadelle Dessie, Jacqueline Smith, Olivier Hanotte
Summary: Breeding for climate resilience in livestock production is a crucial goal, with indigenous livestock showing local adaptations that allow for genetic studies on resilience control. Using ecological niche modeling and genome-wide selection signature analyses, key environmental drivers were identified in African village chickens, pointing towards a predominantly oligogenic control of adaptation. This study highlights the importance of pre-identifying environmental factors and genomic investigations in understanding adaptation in domestic animals.
MOLECULAR BIOLOGY AND EVOLUTION
(2021)
Article
Multidisciplinary Sciences
Almas Gheyas, Adriana Vallejo-Trujillo, Adebabay Kebede, Tadelle Dessie, Olivier Hanotte, Jacqueline Smith
Summary: Indigenous chickens are dominant in poultry production in Africa, but their productivity is relatively low. Whole-genome sequences of 234 indigenous chickens from 24 Ethiopian populations have been obtained, providing valuable resources for investigating genetic diversity and environmental adaptations.
Article
Biodiversity Conservation
Agraw Amane, Gurja Belay, Abdulfatai Tijjani, Tadelle Dessie, Hassan H. Musa, Olivier Hanotte
Summary: This study investigated the genetic diversity and population structure of local Sudanese sheep populations, revealing three genetic groups based on tail morphotype, geographical distribution, and population subtype. The thin-tailed Sudanese sheep populations showed distinct clustering from the fat-tailed Ethiopian and Libyan sheep, with clear signatures of admixture observed among the local Sudanese sheep populations.
Article
Food Science & Technology
Desalew Tadesse, Negussie Retta, Mekonnen Girma, Nicholas Ndiwa, Tadelle Dessie, Olivier Hanotte, Paulos Getachew, Dirk Dannenberger, Steffen Maak
Summary: Adding flaxseed can decrease feed oxidative stability and increase the antioxidant needs of chickens. This study evaluated the effects of feeding plant polyphenol extracts as an antioxidant alongside flaxseed on fatty acid content, oxidative stability, and lipid health indices in breast muscle of slow-growing Sasso T451A dual-purpose chicken.
Article
Agriculture, Dairy & Animal Science
Beatriz Batista Trigo, Natalia Fonseca Alves, Marco Milanesi, Jose Fernando Garcia, Endashaw Terefe, Olivier Hanotte, Abdulfatai Tijjani, Yuri Tani Utsunomiya
Summary: A structural variant (SV1) in the agouti signaling protein gene (ASIP) has been found to be strongly associated with hair coat darkness in specific regions of zebu cattle from the Nellore breed. Analysis of whole-genome sequences of zebu and taurine cattle revealed that ASIP-SV1 is commonly found in 45.9% of zebu cattle and 6.3% of taurine cattle, with the taurine cattle showing zebu introgression or being from crossbreeding. This study provides evidence of the widespread presence of ASIP-SV1 in both zebu populations and taurine cattle with zebu admixture.
Article
Food Science & Technology
Desalew Tadesse, Negussie Retta, Mekonnen Girma, Nicholas Ndiwa, Tadelle Dessie, Olivier Hanotte, Paulos Getachew, Dirk Dannenberger, Steffen Maak
Summary: This study investigated the effects of feeding flaxseed and plant polyphenol extracts on fatty acid content, oxidative stability, and lipid health indices in eggs. The results showed that the inclusion of flaxseed and moderate doses of plant polyphenol extracts significantly increased the content of n-3 polyunsaturated fatty acids in eggs and improved lipid health indices.
Article
Biodiversity Conservation
Endashaw Terefe, Gurja Belay, Abdulfatai Tijjani, Jianlin Han, Olivier Hanotte
Summary: This study analyzed the whole genome sequences of 151 samples from 14 Ethiopian indigenous cattle populations to assess genomic diversity, differentiation, and selection signatures. The results revealed high genomic differentiation between Ethiopian and non-Ethiopian cattle populations, as well as low differentiation and inbreeding within Ethiopian cattle populations. Furthermore, candidate genes associated with various biological functions and molecular pathways were identified in Ethiopian cattle.
Review
Agriculture, Dairy & Animal Science
Sumaya Kambal, Abdulfatai Tijjani, Sabah A. E. Ibrahim, Mohamed-Khair A. Ahmed, Joram M. Mwacharo, Olivier Hanotte
Summary: The review summarizes the research on genomic regions under positive selection in indigenous African cattle breeds, highlighting candidate genes and genome regions associated with adaptation to extreme environments and environmental challenges such as heat stress, infectious diseases, and high altitude. The review also emphasizes the importance of identifying candidate causative variants controlling these traits and provides guidance for future targeted genome studies. The highest numbers of candidate regions are found on BTA3, BTA5, and BTA7, overlapping with genes involved in various biological functions and pathways.
Biographical-Item
Biochemistry & Molecular Biology
Pablo Orozco-terWengel, Eric Coissac, Olivier Hanotte, Francois Pompanon, Paul Sunnucks, Pierre Taberlet