Physiological status of broiler chickens with diets supplemented with milk thistle extract

Abstract

Background and Aim: In recent decades, the use of various feed supplements is the current trend in poultry farming, among which phytogenics serve as alternatives to feed antibiotics. This study aimed to examine the effect of feeding various doses of milk thistle extract (Silybum marianum) on the morphological and biochemical parameters of the blood in broiler chickens. Materials and Methods: Experiments were carried out in an industrial poultry farm on broiler chickens of the Hubbard ISA F15 cross for 40 days. One control group and five experimental groups of day-old chickens were formed. The number of birds in each group was 50. Broilers of all groups received complete feed, and the experimental groups received an additional milk thistle extract at doses of 0.1, 0.5, 1.0, 1.5, and 2.0 mg/kg of body weight. Milk thistle medicinal plant extract was obtained using water-ethanol extraction followed by low-temperature vacuum drying. For the assessment of blood analyses, samples were collected from the wing vein of six chickens per group. Using unified methods recommended by the International Federation of Clinical Chemistry, the content of red blood cells, hemoglobin, white blood cells, total protein, protein fractions, triglycerides, glucose, calcium, phosphorus, and the concentration of alanine aminotransferase and aspartate aminotransferase in the blood serum were determined. Results: It was found that the introduction of milk thistle extract into the diet of broiler chickens with the aforementioned doses increased the number of red blood cells, hemoglobin, white blood cells in the blood, as well as a decrease in the level of albumin and an increase in the content of γ-globulins in its serum. Conclusion: The authors assume that the introduction of milk thistle extract into a complete feed for broiler chickens increased the anabolic processes in their bodies, accompanied by increased use of proteins of the albumin fraction as the main material for organogenesis.

Silybum marianum seed extract supplementation positively affects the body weight of weaned piglets by improving voluntary feed intake

“…The immunostimulatory properties of SMS extract have been reported in human [5,40]. However, the levels of RBC, WBC, IgA, and IgM in blood were not affected by SMS extract supplementation in the diet of dogs [29], broiler chicks [41], and rabbit bucks [42]. At present study, feeding weaned piglets with SMS extract containing diet had no significant effects on the blood immune parameters.…”

The effect of an antioxidant on the hematological profile of birds

“…A significant increase in its concentration level is characteristic of viral infections and blood diseases. It decreases with various immunodeficiency disorders characteristic of kidney failure, with prolonged fasting or overwork [23]. The study of hematological parameters of the blood of broiler chickens indicates that the content of lymphocytes increases slightly, within normal limits, as a result of the use of an antioxidant when feeding broilers by 2.56% in group I, by 9.86% in group II and by 7.10% in group III.…”

Use of Milk Thistle in Farm and Companion Animals: A Review

“…Hb, and WBC fractions, also increasing the γ-globulins as evidence of stimulation processes of hematopoiesis and of the immune system of SIL [65].…”