Use of blend based on an emulsifier, monolaurin, and glycerides of butyric acid in the diet of broilers: impacts on intestinal health, performance, and meat

Abstract

The objective of this study was to evaluate whether the addition of a blend based on α-monolaurin mono-, di-and triglycerides of butyric acid, and lysolecithin on the performance even on diets containing reduced inclusion of oil in the diet and without the use of growth-promoting antibiotics of broilers considering the effect on health, performance, and meat. Three treatments were defi ned: positive control (TP: with enramycin), negative control (TN: no enramycin), and blend (T-FRA: with monolaurin and glycerides of acid butyric minus 0.8% soybean oil). At 21 days, broilers treated with TP and T-FRA obtained the lower feed conversion ratio (FC); at 35 days, T-FRA broilers obtained lower FC than TN broilers. Cholesterol levels were higher in the blood of T-FRA broilers. On day 42, levels of ROS and TBARS were lower in the intestine, muscles, and liver of T-FRA broilers. Moreover, glutathione S-transferase and total non-enzymatic antioxidants were greater at the intestinal and muscular levels. The T-FRA broilers had a lower percentage of lipids in the meat. The MIC indicated that 111mg of the blend/ mL inhibited the growth of E. coli; however, the counts of total coliforms and E. coli in the feces and the broilers' litter did not differ between treatments. In conclusion, the addition of the blend T-FRA in broiler diets was able to improve the feed conversion and maintain the other performance parameters even considering a reduction of 0.8% in the inclusion of oil.

Effect of Lincomycin and Butyrate Glycerides Supplementation on Performance, Blood Biochemical Constituents, Immune Response and Nutrient Absorption Related Gene Expression in Broilers

“…In the current study, dietary BG did not affect serum concentrations of total protein, albumin, glucose and HDL-cholesterol, however, the serum total cholesterol and triglycerides were significantly lower in BG-and LM-fed birds. These results are in line with previous reports addressed BG in broilers diet (Yin et al, 2016;Yang et al, 2018;Saleh et al, 2017), while different response was obtained with Almeida et al (2021) who reported that serum total cholesterol concentration was higher in broilers diets containing the combination of monolaurin and glycerides of butyric acid. Indeed, Yin et al (2016), Gu et al (2022) and investigated the modulatory effect of BG on lipid metabolism in broiler chickens.…”

“…On the same line Lin et al (2022) found that dietary addition of a mixture of mono-glycerides of butyric, capric, and caprylic acid showed a positive effect on broilers' growth performance. Also, Almeida et al (2021) found that a combined mixture of α-monolaurin mono-, di-and triglycerides of butyric acid, and emulsifier enhanced the FCR of broiler chickens. Moreover, Antongiovanni et al (2007) found that broiler chickens reared on BG mix (mono-, di-, and triglycerides) at 4 different levels (2,000, 3,500, 5,000, and 10,000 mg/kg) had a higher slaughter weight and an improved FCR.…”

Effects of Fat Pre-Emulsification on the Growth Performance, Serum Biochemical Index, Digestive Enzyme Activities, Nutrient Utilization, and Standardized Ileal Digestibility of Amino Acids in Pekin Ducks Fed Diets with Different Fat Sources

“…The reason may be related to the improvement in intestinal health. Many authors have observed that the birds receiving diets formulated with exogenous emulsifiers exhibit better intestinal morphology and antioxidant capacity [ 35 ], along with decreased numbers of harmful bacteria in the intestinal tract [ 36 ] and improved intestinal mucosal absorption areas [ 37 ], thus indirectly or directly promoting the digestibility and absorption of nutrients and improving growth performance.…”