Abstract
Problem statement: The idea of the application of biological material as mineral feed additives could constitute an innovative practice that would encourage environmental sustainability. The main idea of this study was to present the advantages of macroalgae enriched with microelements when compared to inorganic salts. Approach: In order to evaluate the potential participation of macroalgae in sustainable animal feeding, it was necessary to consider several concepts, such as: Waste Minimization (WM), Cleaner Production (CP) and Pollution Prevention (PP), which were closely related to sustainable production. Special attention was also paid to the prevention of waste generation during production process of mineral feed additives from macroalgae. Results: This kind of feed additives could contribute to the minimization of nutrient excretion by animals, by optimizing nutrient availability and proportion in the animal diet. Conclusion: The application of macroalgae in animal feeding could be considered as preventive environmental strategy, which would reduce the risks of the excess of microelements in the environment and in the animal diet.
Highlights
The notion of sustainability in animal feeding has become a popular topic
All of them play a significant role in the proper nutrition of animals, but in the recent years, an increasing attention has been paid to the supplementation of animal diet with sufficient quantities of microelements
The results showed that microelements from enriched macroalgae were more bio-available to hens than inorganic salts from fodder in the control group and were transferred in higher quantities to egg yolk, white and blood[29]
Summary
The notion of sustainability in animal feeding has become a popular topic. Three criteria with reference to sustainability were considered: the quality, the environment and economics. Animal feeding has influence on food quality. Apart from the importance concerning animal feeding, the health of animals plays an important role for the quality of food and other animal products influencing human health. The attention to the nutrient content of animal diet would help to maintain healthy animals, environment and reduce feeding costs. Nutrient inputs in the form of feed, fertilizers must balance outputs such as crops, manure and animals for market. The goal of efficient and productive feeding of animals, within economic and environmental constraints, is to provide essential available nutrients for maintenance and production with minimal excess
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