Article
Agriculture, Dairy & Animal Science
Sophie Aguerre, Jean-Michel Astruc, Andres Legarra, Lea Bordes, Francoise Prevot, Christelle Grisez, Corinne Vial Novella, Francis Fidelle, Philippe Jacquiet, Carole Moreno-Romieux
Summary: This study investigated the genetic relationship between resistance to parasitic infections and milk production traits in the blond-faced Manech breed. The results showed that resistance to gastrointestinal parasites had a moderate heritability and a slightly unfavorable but low genetic correlation with milk production traits. These findings have important implications for breeding associations in incorporating resistance to parasites in the selection objective.
GENETICS SELECTION EVOLUTION
(2022)
Article
Genetics & Heredity
Alexander Krivoruchko, Andrey Likhovid, Anastasiya Kanibolotskaya, Tatiana Saprikina, Elena Safaryan, Olesya Yatsyk
Summary: In a group of Karachaevsky rams, a genome-wide association analysis was conducted to investigate the relationship between single nucleotide polymorphisms (SNPs) and meat production parameters. The study identified 12 SNPs that were significantly associated with live meat quality parameters. Additionally, 11 candidate genes were described, which may have an impact on sheep body parameters. These genes are involved in metabolic pathways related to cell differentiation, proliferation, and apoptosis, and are connected to the regulation of the gastrointestinal, immune, and nervous systems.
Article
Agriculture, Dairy & Animal Science
Narzhan Zhumadillayev, Kairat Dossybayev, Aigerim Khamzina, Tilek Kapasuly, Zhangylsyn Khamzina, Nurlan Tlevlesov
Summary: This study presents the genetic structure and population analysis of a new breed of sheep called Baisary in Kazakhstan. The breed shows significant genetic differentiation from its ancestors and other breeds, making it suitable for registration as a separate breed. Understanding the gene pool and genetic diversity of sheep breeds in Kazakhstan is important, and this study can contribute to the farmers' interest in Baisary sheep.
Article
Agriculture, Dairy & Animal Science
Ion Valeriu Caraba, Marioara Nicoleta Caraba
Summary: This study aimed to assess the effect of a fodder complex on the milk production and quality of Turcana sheep. The results showed that the additional feed improved the milk quality and there were no sources of pollution in the grazing area.
Article
Biotechnology & Applied Microbiology
Cornelius Nel, Phillip Gurman, Andrew Swan, Julius van der Werf, Margaretha Snyman, Kennedy Dzama, Klint Gore, Anna Scholtz, Schalk Cloete
Summary: This study evaluated the genetic structure of sheep breeds in South Africa and Australia. The results showed high genetic complexity and diversity in these breeds. The relatedness and divergence varied among different breeds and bloodlines. The study also found that population structure could have an important impact on the compatibility of genomic data.
Article
Food Science & Technology
Zhiting Xu, Shuqi Diao, Jinyan Teng, Zitao Chen, Xueyan Feng, Xiaotian Cai, Xiaolong Yuan, Hao Zhang, Jiaqi Li, Zhe Zhang
Summary: The study focuses on breed identification through genetic markers genotyped from meat products, and highlights the importance of breed tag SNPs and machine learning methods in improving identification accuracy.
Article
Food Science & Technology
Haiyan Wang, Minghui Zhang, Yucui Huo, Xiuxiu Cui, Rui He, Bei Han, Zhongfu Wang, Yuxuan Song, Xin Lv, Jing Zhang, Wupeng Ge
Summary: This study conducted a comprehensive analysis of milk oligosaccharides (MOs) in important domestic animals (goats, cows, camels, and sheep) and compared them with human MOs. The relative abundance of sheep MOs among different breeds and lactation periods was also analyzed. In general, 35, 24, 19, 26, and 16 MOs were identified in human, goat, bovine, camel, and sheep milk respectively. The type of sheep MOs was not greatly influenced by the breeds and lactation period. These findings suggest the potential value of MOs from domestic animal milk for commercial applications.
FOOD RESEARCH INTERNATIONAL
(2023)
Review
Agriculture, Dairy & Animal Science
A. Figueroa Sanchez, J. Perea Munoz, J. Caballero-Villalobos, R. Arias Sanchez, A. Garzon, E. Angon Sanchez de Pedro
Summary: This study evaluated the characteristics of sheep milk and their impact on cheesemaking, finding that lactose concentration, casein content, and initial pH directly influence milk coagulation. Somatic cells and technological parameters, however, showed little to no effect on the process. Factors such as fat content, lactose concentration, casein content, and curd moisture directly affected curd yield.
JOURNAL OF DAIRY SCIENCE
(2021)
Article
Agriculture, Multidisciplinary
Ying Guo, Zhihong Yu, Zhenjie Hou, Wenguang Zhang, Guimei Qi
Summary: This research proposes a sheep face image dataset containing 10 breeds for automatic sheep breed recognition. By using knowledge distillation, the model transfers sheep face features learned by YOLOv5x to the lightweight YOLOv5s network, improving feature extraction capability and recognition accuracy. Experimental results show that the proposed model achieves an accuracy of 92.75% and a mean average precision of 94.67%, with an inference time of 12.63 ms.
COMPUTERS AND ELECTRONICS IN AGRICULTURE
(2023)
Article
Agriculture, Dairy & Animal Science
Peng Su, Hui Wu, Yangming Huang, Xiaofang Lu, Jing Yin, Qingfeng Zhang, Xianyong Lan
Summary: Studying the characteristics of mammalian hoof colors is important for genetic improvements in animals. In this study, a specific single-nucleotide polymorphism (SNP) in the MITF gene was found to be significantly associated with hoof color in Australian White sheep. This research provides novel insights into hoof color genetics and offers molecular markers for selecting sheep with desired hoof color.
Article
Biophysics
Jorge Osorio-Avalos, Daniela M. Garza-Camargo, Lizbeth E. Robles-Jimenez, Javier Plaza, Jose A. Abecia, Carlos Palacios, Manuel Gonzalez-Ronquillo
Summary: This study aimed to investigate the effects of environmental factors on milk production in dairy animals. The results showed that mean temperature, relative humidity, temperature-humidity index, and solar radiation were negatively correlated with milk yield. Additionally, the lunar calendar had a significant impact on milk production.
INTERNATIONAL JOURNAL OF BIOMETEOROLOGY
(2022)
Article
Agriculture, Dairy & Animal Science
Abdulkareem M. Matar, Abdulrahman S. Alharthi, Moez Ayadi, Maged A. Al-Garadi, Riyadh S. Aljummah
Summary: Recently, there has been a growing interest in sheep milk products, particularly their high content of saturated fatty acids (SFA), and their potential impact on human health. This study aimed to identify specific SNPs in the ACACa gene and explore their association with milk composition in Najdi sheep. The results showed that certain SNPs were significantly associated with the levels of fatty acids, milk protein, and milk fat in Najdi sheep. These findings have important implications for genetic selection and milk quality control in high-quality dairy sheep breeds.
Article
Ecology
M. Bayraktar, O. Shoshin
Summary: The study found that the polymorphisms of SLC27A3 and beta-lactoglobulin genes are associated with milk composition in Hamdani sheep, and can be used as genetic markers for selecting milk traits in breeding programs.
APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH
(2021)
Article
Agriculture, Dairy & Animal Science
Esra Duman, Ozge Ozmen, Selim Kul
Summary: The study aimed to determine the expression pattern of important miRNAs associated with lactation in sheep milk between high and low lactating-yield ewe groups. Significant differences in miRNA expression levels were found between the groups, with certain miRNAs showing negative correlations with milk protein, lactose contents, and milk yield. Additionally, hub genes for the target genes of these miRNAs were identified. This study provides new insights into the relationship between miRNA expression profiles in sheep milk and milk yield and composition in different lactating yield groups.
ANIMAL BIOTECHNOLOGY
(2022)
Article
Agriculture, Dairy & Animal Science
Ana Garzon, Jose M. Perea, Ramon Arias, Elena Angon, Javier Caballero-Villalobos
Summary: This study develops algorithms to estimate the economical value of milk for cheesemaking, improve efficiency in the cheese sector, and establish an objective method for pricing milk based on its usefulness in cheese production. It evaluates the coagulation performance of Manchega sheep milk and explores two models to determine milk technological efficiency. The study focuses on curd yield and dry curd yield as indicators of coagulation efficiency.
Article
Agriculture, Dairy & Animal Science
Simoni Symeou, Ouranios Tzamaloukas, Georgios Banos, Despoina Miltiadou
JOURNAL OF DAIRY RESEARCH
(2020)
Article
Agriculture, Dairy & Animal Science
M. C. Neofytou, D. Miltiadou, E. Sfakianaki, C. Constantinou, S. Symeou, D. Sparaggis, A. L. Hager-Theodorides, O. Tzamaloukas
JOURNAL OF DAIRY SCIENCE
(2020)
Review
Agriculture, Dairy & Animal Science
Ouranios Tzamaloukas, Marina C. Neofytou, Panagiotis E. Simitzis
Summary: By utilizing olive by-products as part of the ruminants' diet, it is possible to reduce feeding costs and management expenses while also contributing to environmental protection and resource preservation. The quality of milk and meat can be improved, benefiting consumer health, without detrimental effects on ruminal function, metabolism, or productivity.
Article
Agriculture, Dairy & Animal Science
Marina C. Neofytou, Despoina Miltiadou, Simoni Symeou, Dionysis Sparaggis, Ouranios Tzamaloukas
Summary: The study found that short-term forage substitution with ensiled olive cake did not significantly affect milk yield and protein-fat composition, but improved the fatty acid composition of milk, particularly by reducing medium-chain fatty acids and increasing long-chain and mono-unsaturated fatty acids.
TROPICAL ANIMAL HEALTH AND PRODUCTION
(2021)
Article
Agriculture, Dairy & Animal Science
S. Symeou, D. Miltiadou, C. Constantinou, P. Papademas, Ouranios Tzamaloukas
Summary: This study demonstrates that adding olive cake silage to the diets of Chios sheep can increase the fatty acid content of milk and ovine halloumi cheese without affecting milk yield. This can enhance the health benefits of the cheese for human consumption.
TROPICAL ANIMAL HEALTH AND PRODUCTION
(2021)
Article
Food Science & Technology
Ouranios Tzamaloukas, Marina C. Neofytou, Panagiotis E. Simitzis, Despoina Miltiadou
Summary: This study found that organic farming practices influenced the fat and protein content, as well as the fatty acid profile of milk and dairy products. Compared to traditional farms, organic farms produced products with higher levels of fatty acids, mono-unsaturated fatty acids, and poly-unsaturated fatty acids.
Review
Agriculture, Dairy & Animal Science
Severiano R. Silva, Laura Sacarrao-Birrento, Mariana Almeida, David M. Ribeiro, Cristina Guedes, Jose Ramiro Gonzalez Montana, Alfredo F. Pereira, Konstantinos Zaralis, Ana Geraldo, Ouranios Tzamaloukas, Marta Gonzalez Cabrera, Noemi Castro, Anastasio Arguello, Lorenzo E. Hernandez-Castellano, Angel J. Alonso-Diez, Maria J. Martin, Luis G. Cal-Pereyra, George Stilwell, Andre M. de Almeida
Summary: This review examines the application of technological developments in extensive sheep and goat production systems, focusing on nutrition, production, and animal welfare. The use of precision livestock farming and other relevant technologies has the potential to improve efficiency and sustainability in these systems.
Review
Agronomy
Christos Tzanidakis, Ouranios Tzamaloukas, Panagiotis Simitzis, Panagiotis Panagakis
Summary: Over the past four decades, the global population's dietary needs have increased, leading to a rise in animal product consumption, particularly in South America and Asia. This has led to the expansion of livestock production systems and changes in animal management. Precision Livestock Farming (PLF) utilizes sensors and computer algorithms for real-time monitoring and control, allowing for early problem detection and increased awareness of individual animal needs. Although commercial PLF products are available, adoption is limited due to economic and cultural constraints and inadequate technological infrastructure.
Review
Green & Sustainable Science & Technology
Maria Papageorgiou, Michael Goliomytis, Ouranios Tzamaloukas, Despoina Miltiadou, Panagiotis Simitzis
Summary: Animal welfare is crucial for sustainable agriculture and food security. Positive welfare, which focuses on promoting a good life for animals, is more comprehensive than the traditional welfare approach. Poultry is one of the species with the most welfare concerns. This study reviewed positive welfare indicators for different poultry species and discussed their connection with sustainable management.
Article
Agriculture, Dairy & Animal Science
Marina C. Neofytou, Charoulla Michael, Constantina Constantinou, Dionysis Sparaggis, Ouranios Tzamaloukas
Summary: The research showed that feeding dairy ewes with wheat-based DDGS can increase the levels of unsaturated fatty acids in milk, potentially improving human health, without adversely affecting milk, protein, or fat yield.
JOURNAL OF DAIRY RESEARCH
(2021)