Evaluation of yeast culture and direct-fed microbial on gut histology and serum components of broilers challenged with suboptimal diets under heat stress

Abstract

The use of antibiotics in feed for growth promotion has been restricted in many countries, thus it is of interest to investigate potential alternatives for enhancing growth performance in birds. An experiment was carried out to evaluate the concurrent use of prebiotic and probiotic on gut histology and some blood chemicals of broiler chickens during heat stress. A total of 144 day-old male Ross 308 broiler chicks were randomly divided into 3 treatments. The first treatment was a diluted diet including rice bran without probiotic or prebiotic. The other treatments were fed the diluted diets with a prebiotic (treatment 2) and concurrent use of that prebiotic along with a probiotic (treatment 3). Results showed that villus height was not influenced by feed additives. However, crypt depth significantly increased by feed additives in particular with combination of prebiotic and probiotic. The ratio of villus height to crypt depth significantly decreased in treatments fed prebiotic alone or prebiotic and probiotic together. This finding is indicating the fact that non-starch polysaccharides (NSPs) in high inclusion rate of rice bran caused to villus height erosion. It could be concluded that prebiotic and probiotic caused an increasing of enterocyte proliferation in the crypt of Liberkhun.

Dietary Saccharomyces cerevisiae boulardii CNCM I-1079 Positively Affects Performance and Intestinal Ecosystem in Broilers during a Campylobacter jejuni Infection

“…As for the architecture of intestinal mucosa, we obtained results comparable to other studies in which villi, crypts, or both were positively influenced by yeast supplementation in diets for broilers [60][61][62]. The higher number of PAS positive mucin producers cells is related in the literature to a protective effects for the intestinal mucosa [63].…”

Effect of Dietary Supplementation of Prebiotic and Acidifier Powder on Growth Performance and Haemato-biochemical Parameters in Broilers

“…Solanki et al (2020) and Syrovatko (2021) recorded non-significant effect on serum total protein, glucose and cholesterol due to supplementation of acidifier powder in broiler diets. In contrast to the present findings, Brzoska et al (2013) and Seifi et al (2015) observed significant difference of acidifier powder supplemented groups in blood glucose and cholesterol as compared to control group.…”

“…The present findings were similar with Taherpour and Ghasemi (2014) in broiler birds supplemented with a combination of prebiotic and acidifiers. However, Emami et al (2012) andSaheh et al (2014) found that adding prebiotic and Heidari et al (2018) and Seifi et al (2015) found that adding acidifier non-significant effect on body weight gain of broilers.…”

Incorporation of yeast treated Dialium bark meal on growth performance, blood indices and intestinal physiology of broilers

“…The enhanced histomorphology of the jejunum in broilers fed TS diets may be ascribed to the stimulatory action of the product. Yeast present in TS diets may have improved the histoarchitecture of the intestine, which supports the findings of others [ 18 , 31 ]. This could be the main factor that explains the impact of dietary TS additive on growth indices during the finisher production phase, thereby enhancing the uptake of nutrients needed for body growth and development.…”