New feed supplement from macroalgae as the dietary source of microelements for pigs

Abstract

Abstract:The aim of the study was to perform feeding experiments on growing pigs in order to assess the impact of macroalga Enteromorpha sp. enriched with Zn(II) and Cu(II) ions via the biosorption process on the mineral composition of blood, meat, liver, feces and urine. In the control group, microelements were supplemented as inorganic salts, whereas in the experimental groups they were replaced by enriched macroalga. After 3 months of the feeding experiment, it was found that the meat was biofortified with Cr, Mn, Fe, Cu and Zn. The average content of Zn in the blood from the pigs fed with algae was higher by 9.5%, compared to that in the blood from pigs in the control group. The liver of growing pigs from the experimental group contained 16% less Cu and 18% less Zn than the liver in the control group. Growing pigs fed with macroalgae excreted in feces 27% more Zn than growing pigs in the control group, but 3.5 times less Cu. It could be concluded that the bioavailability of microelements to pigs from algae was higher than from the inorganic salts. Baltic macroalgae enriched with microelement ions could be potentially used as a biological feed additive.

Nutritional and functional values of lysedCorynebacterium glutamicumcell mass for intestinal health and growth of nursery pigs

“…Alternative protein supplements with adequate nutritional values and bioavailability include single cell protein (SCP), processed vegetable protein, and insect protein ( Kim et al, 2019 ). The SCP, including yeast, microalgae, and bacterial cells, contains high levels amino acids (AA), fats, and vitamins ( Kihlberg, 1972 ; Michalak et al, 2015 ; Lopes et al, 2017 ). However, intact SCP supplemented in animal diets may cause reduced growth performance, intestinal health, and nutrient digestibility due to indigestible cell wall ( Rumsey et al, 1991 ; Zhang et al, 2013 ; Cruz et al, 2020 ) and the potential endogenous toxins ( Farstad, 1977 ) reducing nutrient digestibility and causing intestinal challenges to young pigs ( Kim et al, 2019 ).…”

The Cladophora glomerata Enriched by Biosorption Process in Cr(III) Improves Viability, and Reduces Oxidative Stress and Apoptosis in Equine Metabolic Syndrome Derived Adipose Mesenchymal Stromal Stem Cells (ASCs) and Their Extracellular Vesicles (MV’s)

“…Besides beneficial chemical composition, Cladophora glomerata might be enriched with various minerals by the biosorption process, which increases its nutritional value and therapeutic properties. Biosorption is a process of passive sorption and complexation of particular sorbents including ions such as Cr(III), that besides their sorbent properties also become valuable nutrients [ 23 , 24 ]. Thus, the combination of biosorption, with particular of Cr(III) ions together with high content of antioxidants as well as anti-inflammatory compounds, might be a beneficial future diet for EMS treatment.…”

Effect of Laminaria digitata dietary inclusion and CAZyme supplementation on blood cells, serum metabolites and hepatic lipids and minerals of weaned piglets

“…However, it was not the case of Sulphur, which was at least 47% higher in seaweed diets. Several authors have previously reported that seaweeds are a good source of microelements, but such an effect on hepatic Sulphur content has not been reported 47 . Accordingly, Copper and Manganese were significantly reduced in L. digitata with or without the recombinant alginate lyase compared to control, and also in L. digitata with the recombinant alginate lyase compared to L. digitata alone.…”