Abstract
BackgroundBoth selenium (Se) and probiotic Bacillus regulate the metabolism to help defense clod stress and improve the meat quality in breeding chicks. The purpose of this study was to evaluate the effect of supplemental Se and Bacillus in the form of Se-enriched Bacillus (SECB) on the growth performance, lipid parameters, breast Se and antibiotic levels, and breast meat quality of chicken in winter cold stress.MethodsFive hundred 1-d-old chickens were divided into five groups randomly: Control, inorganic Se, compound Bacillus, SECB, and antibiotic. The feed duration was 56 d.ResultsAfter 28 d of treatment, chicks feed SECB or compound Bacillus had higher body weights than the control, and after 56 d, chicks given either SECB or compound Bacillus had higher body weights than the control chicks or those given inorganic Se. Adding SECB to feed significantly increased the lightness, redness, and yellowness of breast meat, improved the water-holding capacity, and reduced the shear force and cooking loss. The concentration of Se in the breast muscle very significantly increased after SECB and inorganic Se supplementation, which was opposite to the concentration of flavomycin in antibiotic supplemented chicks. The antioxidative status of plasma and breast meat was significantly improved with added compound Bacillus and SECB: the total antioxidant capacity, total superoxide dismutase, and glutathione peroxidase ability in the breast muscle significantly improved, and the malondialdehyde concentration in plasma decreased. The levels of total cholesterol plasma triglyceride and very-low-density lipoprotein cholesterol in the plasma and breast muscle was decreased compared to that of the control, while the plasma high-density lipoprotein cholesterol concentration increased.ConclusionsIn conclusion, SECB supplementation promoted the body growth, antioxidative status, and Se concentrations in the plasma and breast meat, and also improved the breast meat quality.
Highlights
Both selenium (Se) and probiotic Bacillus regulate the metabolism to help defense clod stress and improve the meat quality in breeding chicks
Growth performance The growth performance of Chinese Huainan Partridge chickens in five groups is shown in Figs. 1, 2 and 3
At 28 d, chickens in groups supplemented with compound Bacillus (CB), Se-enriched Bacillus (SECB), and flavomycin had higher final body weights than those in the control or inorganic sodium selenite (IS) groups (P < 0.05)
Summary
Both selenium (Se) and probiotic Bacillus regulate the metabolism to help defense clod stress and improve the meat quality in breeding chicks. The temperature is below the suitable living standard for chick growth; it can lead to cold stress and diseases, causing bad meat quality and low breeding efficiency. Low-molecular-weight organic Se complexes, such as amino acids [6] and nano forms [7], provide a myriad of benefits; they have a higher organic bioavailability than the inorganic forms that are most often used as a dietary supplement [8]. Their higher cost may inhibit widespread use. Considering the anti-stress role of Se, it is of urgent need to explore a cheap and convenient organic Se source for supplementation
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