The effects of Yeasture® at different rearing stages on intestinal microflora and blood biochemical parameters in male and female broiler chickens

Abstract

This experiment was conducted to determine the effects of a probiotic (Yeasture®) at different rearing stages on intestinal microflora and blood biochemical parameter in broiler chickens. A total of 378 one day old, male and female (Ross 308) broiler chicken were randomly allocated to one of the 21 floor pens in a completely randomized design with seven treatments and three replicate groups and eighteen chicks in each group (9 male and 9 female). Experimental treatments consisted of seven groups, including: A (control), B (1-11 days), C (1-24 days), D (1-42 days), E (11-24 days), F (11-42 days) and G (24-42 days). The results of this study indicated that probiotic at different rearing period in the diet significantly increased blood glucose and calcium during the whole period and significantly decreased blood cholesterol, low density lipoprotein (LDL) and uric acid. In addition, probiotic in diets at different rearing stage had a significant effect on Bifidobacterium and total aerobic bacteria counts. Gender and treatment interaction had no significant effect on the intestinal microflora population. Blood cholesterol and triglyceride levels were significantly lower in male broilers than female broilers. It is concluded that Yeasture® at whole rearing period (1-42 days) in diets improved intestinal microflora population and blood metabolites in broiler chickens.

The effects of fermented milk products (kefir and yogurt) and probiotic on performance, carcass characteristics, blood parameters, and gut microbial population in broiler chickens

“…Haque et al (2017) observed that the use of yogurt in water had significantly lower blood cholesterol concentration than commercial probiotic and control group. Overall, our results are in agreement with other researchers (Ghasemi-Sadabadi et al, 2016;Pourakbari et al, 2016;El-Rahman et al, 2012;Kalavathy et al, 2003). These researchers reported that the supplementation of probiotic compounds decreased blood cholesterol in broiler chickens.…”

“…For this purpose, the researchers showed that using probiotic supplements can increase blood glucose levels. In the same results, Ghasemi-Sadabadi et al (2016) reported that the use of probiotics from 1 to 42 d increased blood glucose concentration in broiler chicks. In another ex-periment, however, Pourakbari et al (2016) observed that the probiotic had no significant effect on blood glucose concentration.…”

“…Similarly, results from other research state that Lactobacillus and bifidobacteria could contribute to the regulation of blood cholesterol concentrations by the conjunction of bile acids. Since the excretion of deconjugated bile acids was enhanced and cholesterol plays a role as its precursor, more molecules are spent for recovery of bile acids (Ghasemi-Sadabadi et al, 2016;Pereira and Gibson, 2002). Also, regarding the data, it can be concluded that supplementation of probiotic in water reduced blood LDL concentration in female broiler chickens.…”

“…Significant improvement in the BWG and FCR obtained in this study supports the results of others (Lan et al, 2003;Panda et al, 2006) that probiotics improve broiler performance. Probiotics can also improve broiler performance by increasing the villous height in the small intestine (Gunal et al, 2006;Panda et al, 2006). Talebi et al (2008) demonstrated that the use of probiotic (Pri-maLac) in diets increased BWG in broiler chickens.…”