Extended Abstract
Background: Reducing antagonism, interference, and competition between minerals, increasing their availability, neutralizing anti-nutritional substances, and enhancing performance, health (immune system, nutritional activity), comfort, and welfare of animals are key objectives. Additionally, improving the quality of livestock products (meat, milk, wool, etc.), reducing the destructive effects of minerals on vitamins in premixes and supplements, and preserving the environment by minimizing pollution are some benefits of using organic minerals. Chelates of organic materials (especially proteins) and metallic elements have a high absorption rate in the intestine, allowing for a reduction in the standard levels of these elements in the diet without negatively affecting the production characteristics of livestock and poultry. This, in turn, reduces environmental pollution caused by these elements. The aim of the current research was to investigate the trends in the field of chelation to identify hot and emerging issues and to examine the changes in the intellectual structure of this field.
Methods: This research studied the intellectual structure of the chelation field using reference analysis. The research community consisted of all research and review articles published from 1990 to 2022 in journals indexed in the Web of Science database. The data source was the Web of Science database, and the data analysis tool used to draw the intellectual structure of this field was Citespace software.
Results: The analyzed data indicated that terms such as zinc, copper, pig, cattle, metabolism, and bioavailability are prominent keywords reflecting the hot spots in the field of chelation during the investigated time period. From 2001 to 2008, terms such as growth performance, trace element, cobalt, dietary zinc, and trace mineral emerged, while from 2010 to 2019, new topics included carcass traits, meat quality, and nutrient digestibility. The main points and hot topics identified during the investigated periods included terms such as zinc (331 co-occurrences), performance (324), copper (216), and supplementation (180). Among the keywords, "availability," "ruminant," and "calf" showed the longest duration of prominence, receiving attention from the scientific community for 28, 19, and 16 years, respectively. Additionally, the keyword "pig" had the highest citation rate of 13.28 during the period of 2000-2008, making it a focal point for the scientific community. Overall, the hot and emerging topics in the field of chelation can be categorized into several stages: the first stage (1990-2006) included emerging topics such as nitrogen, barley, protein, sheep, and zinc; the second stage (2007-2016) focused on plasma and selenium; and the third stage (2017-2022) highlighted health, muscle, beef, trace minerals, and dietary supplementation.
Conclusion: The hot and emerging issues identified in this study can serve as a roadmap for macro-scientific planning and policies in the country. The results of this research can be utilized by policymakers, professors, researchers, and organizations interested in the field of animal husbandry.