Effects of dietary Lactobacillus rhamnosus CF supplementation on growth, meat quality, and microenvironment in specific pathogen-free chickens

Abstract

The probiotic effects of Lactobacillus rhamnosus strain CF (Chen Fu) on growth performance, meat quality, and microenvironment in specific pathogen-free (SPF) chickens were investigated and compared with Enterococcus faecium. One-hundred-eighty 7-day-old SPF chickens were randomly assigned into 3 groups with 3 replicate pens of 20 chickens each. Group 1 served as a control that was fed a basal diet without probiotics supplementation. Groups 2 and 3 were fed the basal diet supplemented with L. rhamnosus CF and E. faecium, respectively. On d 12 and 24, BW, ADG, feed conversion ratio (FCR), dressing percentage (DP), and apparent digestibility of crude protein (AD-CP) were calculated. Meat color, fat content, shear force, water content, and pH value of breast and thigh muscles; ammonia, urea nitrogen, and uric acid content in plasma; pH value, Enterococcus, Lactobacillus, and E. coli in ceca; and ammonia emission were determined. Compared with group 1, group 2 exhibited higher BW, ADG, AD-CP, DP, cecal Lactobacilli, and muscle fat content (P < 0.05) as well as lower FCR, muscle water content, plasma ammonia, pH value, E. coli, and Enterococcus in ceca, and ammonia emission (P < 0.05), and group 3 exhibited higher BW, ADG, AD-CP, DP, and muscle fat content (P < 0.05), as well as lower FCR, meat color, plasma ammonia, E. coli and Enterococcus in ceca, and ammonia emission (d 24) (P < 0.05). Compared with group 3, group 2 exhibited lower plasma ammonia level, E. coli, and pH value in ceca and ammonia emission (P < 0.05) and higher AD-CP, meat color, pH value in thigh muscles, fat content in breast muscles, and number of Lactobacillus in ceca (P < 0.05). Thus, L. rhamnosus CF improves growth performance, meat quality, and microenvironment and is a potential probiotic additive in chickens.

Effect of a Synbiotic Mix on Intestinal Structural Changes, and Salmonella Typhimurium and Clostridium Perfringens Colonization in Broiler Chickens

“…In our study, L. rhamnosus and L. curvatus were only found in broilers treated with the Synbiotic mix, while L. pentosus, L. buchneri , and L. mesenteroides were found exclusively in broilers that did not receive the Synbiotics. L. rhamnosus improves growth performance, meat quality, ammonia emission, and intestinal microbiota in chickens [60]. Lactobacillus curvatus display antimicrobial activity against Klebsiella, E. coli , and Staphylococcus aureus [61].…”

Effects of Bacillus subtilis C‐3102 on production, hatching performance, egg quality, serum antioxidant capacity and immune response of laying breeders

“…Many probiotics, including BS, have been approved as animal diet supplement and are already used in many commercial applications (Cutting, ; Griggs & Jacob, ). A growing body of scientific research shows that probiotics have beneficial effects on growth performance and intestinal microbiota balance in chickens (Chen, Gao, Zhu, Qin, & Qiu, ), piglets (Lan, Tran, & Kim, ) and aquaculture (Liu, Chiu, Wang, & Cheng, ; Niamphithak, Chareonwattanasak, & Doolgindachbaporn, ). Dietary BS exerts positive effects on production performance, improving the intestinal health and systemic immunity in poultry (Hatab, Elsayed, & Ibrahim, ; Lee, Lillehoj, Jang, & Lee, ).…”

Combined Use of C. butyricum Sx-01 and L. salivarius C-1-3 Improves Intestinal Health and Reduces the Amount of Lipids in Serum via Modulation of Gut Microbiota in Mice

“…In recent years, some studies showed that combined use of probiotics could promote growth performance in animals [ 35 , 36 , 37 , 38 ]. However, some research showed that combined use of probiotics exerted no significant effect on growth performance [ 39 ].…”