Effects of two probiotic additives containing Bacillus spores on carcass characteristics, blood lipids and cecal volatile fatty acids in meat type chickens

Abstract

The objective of this study was to evaluate effects of two commercially available probiotic additives, containing Bacillus spores, on carcass and meat characteristics, serum lipids and concentration of cecal volatile fatty acids of meat type chickens. Birds were fed regular corn-soy meal based feed (control), supplemented with additive A, containing 1.6 × 10(6) spores per gram of feed of Bacillus subtilis and Bacillus licheniformis (group A) or additive B, containing the same concentration of Bacillus cereus var. toyoi spores (group B). One hundred and twenty birds (20 per replicate) were slaughtered at the age of 55 days. Results showed that birds in group B had higher (p < 0.05) final body weight compared to birds from group A and higher carcass weights and yield percentages compared with control. Breasts and whole legs were also heavier in group B, compared to control, but not the yield. Group A had higher yield of wings and lower abdominal fat weight compared to group B (p< 0.05), but not compared with control. Total cholesterol was not affected by the dietary treatment, on contrary both probiotics elevated the LDL (p < 0.05) and lowered HDL cholesterol, thus unfavourably changed animal's blood serum cholesterol profile. Both probiotics influenced the cecal fermentation, which was observed as decrease in cecal concentrations of propionic, butyric, n-butyric and n-valeric acids, but the differences compared to control group were statistically significant for group A only. It was established that probiotic additive B was more effective regarding carcass and meat part weights than additive A, however the animals from group B also had more abdominal fat and their meat had significantly higher conductivity than control group, which is not considered as beneficial.

Effect of maternal canthaxanthin and 25‐hydroxycholecalciferol supplementation on the performance of ducklings under two different vitamin regimens

“…Similarly, in our study, males revealed higher 1‐day‐old body weight in ducklings hatched from eggs laid at 24 weeks of the duck breeder trial, especially from eggs in maternal CX+25‐OH‐D 3 ‐free group. The increased 1–14 days growth performance of males in ducklings under both of the vitamin regimens was consistent with the previous studies (Jonesa and Hughesa, ; Novak et al., ).…”

Effect of dietary supplementation of Bacillus subtilis B10 on biochemical and molecular parameters in the serum and liver of high-fat diet-induced obese mice

“…Nevertheless, the significant increases of TC and LDL-C in the serum were in contrast to the findings of Panda et al (2006), in which serum TC and LDL were reduced by dietary supplementation of Lactobacillus sporogenes. However, the study of Novak et al (2011) also found an enhanced serum LDL-C level. In their opinion, the lowered concentrations of cecal propionic and butyric acids in Bacillus-fed chickens might be the reason for higher levels of LDL compared with the control, because products of bacterial fermentation, specifically short chain fatty acids, may inhibit cholesterol synthesis in the plasma cholesterol in the liver (Rafter, 2002).…”

The Influence of Probiotic Bacteria (Bacillus Toyoi) on Livability and Performance of Young Meat-Type Turkeys

“…Toyocerin®, a preparation containing the bacterial strain Bacillus toyoi, has shown beneficial effects when administered to pigs (Jadamus et al, 2002;Stamati et al, 2006;Papatsiros et al, 2011;Kantas et al, 2014), rabbits (Brzozowski & Strzemecki, 2013), Japanese quails (Homma & Shinohara, 2004), chickens and turkeys (Jeroch et al, 2004;Grela et al, 2009;Novak et al, 2011).…”