Effects of different inorganic selenium levels in laying quails (Coturnix coturnix Japonica) diets on performance, egg quality, and serum biochemical parameters

Abstract

Inorganic selenium supplementation in poultry diet has been controversial. It has been linked that the excess and deficiency of this mineral can lead to health problems in these animals. However, this fact is not so evident in quails. In this research 120 female quails (220.6 ± 8.2 g) at 10 weeks of age were allocated to five treatment groups with six replicates of four quails in each. Experimental diets were formed by adding 0, 0.25, 0.50, 0.75 or1.00 mg/kg of inorganic selenium (sodium-selenite) to the diet containing 0.12 mg/kg of selenium. We observed that performance parameters, mortality, egg external, and internal quality of quails were not affected by the supplementation of inorganic selenium to the diet Serum glucose (P = 0.0020) and creatinine (P = 0.0333) levels were affected by inorganic selenium supplementation, but no differences were found for other parameters among those treatments. The addition of 0.50 mg/kg of inorganic selenium to the diet increased serum glucose levels of laying quails compared with the control group. While serum creatinine level was maximized with the addition of 0.25 mg/kg inorganic selenium to the diet, and it was minimized with the addition of 0.50 mg/kg inorganic selenium. Supplementation with inorganic selenium (0 to 1.00 mg/kg) in laying quail diets did not have any adverse effect on performance, mortality, and egg quality during the study. No abnormalities were found in the serum parameters that would lead to the suspicion of metabolic disease in the quails.

Soybean Oil and Selenium Yeast Supplementation in Quail's Diet: Productive Performance, Fatty Acid Profile, Enzyme Activity, and Oxidative Stability of Meat

“…Moisture, protein, lipids, ash, and Se concentration (Table 3) were not affected by the interaction (p > 0.05) between SO and SeY levels. Sarmiento-García et al [16] reported that supplementation of laying quail diets with sodium selenite up to 1 ppm for 20 weeks had no effect on production performance, meat composition, or serum biochemical parameters. High SO in diets decreased the moisture and increased Se concentration in the meat of quails.…”

“…[15] Quail performance can be improved by selenite reserves in muscles that support antioxidant defenses. [16] In addition, Se is a component of the enzyme glutathione peroxidase, which is a selenoenzyme responsible for fighting free radicals in muscle tissue, preventing oxidative damage by acting as a modulator of the immune system and reproductive system. [17] There are many studies in the literature which have tested Se addition in quails' diets to improve the oxidative stability of the meat, however the antioxidant role of Se is still unclear [12,15] and the effects of organic or inorganic Se as dietary supplementation on its final concentration in quail meat and on the meat quality are not conclusive.…”

“…[17] There are many studies in the literature which have tested Se addition in quails' diets to improve the oxidative stability of the meat, however the antioxidant role of Se is still unclear [12,15] and the effects of organic or inorganic Se as dietary supplementation on its final concentration in quail meat and on the meat quality are not conclusive. [16,18] In fact, the role of SeY supplementation in quails' diets has not yet been elucidated in the literature, and more specifically there are no studies on the possible synergistic action between soybean oil (SO) and SeY on lipids, fatty acids, and the oxidative stability of meat.…”

“…[ 15 ] Quail performance can be improved by selenite reserves in muscles that support antioxidant defenses. [ 16 ] In addition, Se is a component of the enzyme glutathione peroxidase, which is a selenoenzyme responsible for fighting free radicals in muscle tissue, preventing oxidative damage by acting as a modulator of the immune system and reproductive system. [ 17 ]…”

Performance, Egg Quality, and Yolk Antioxidant Capacity of the Laying Quail in Response to Dietary Choline Levels

“…The nutrition of avian species plays a key role in their health, egg quality, and body growth [ 1 , 2 ]. In poultry production, adequate nutrient intake is crucial for optimal performance [ 1 ].…”