Effect of Dietary Supplementation of Zinc and Multi-Microbe Probiotic on Growth Traits and Alteration of Intestinal Architecture in Broiler

Abstract

This experiment aimed to investigate the effect of different levels of zinc (Zn) and a probiotic on the growth and intestinal health of broiler chickens. One hundred ninety-two-day-old broiler chicks were randomly assigned to 6 groups. The birds were supplemented with Zn (30 and 60 mg/kg) and a probiotic mixture alone or in combination with Zn. The results revealed that the broilers receiving a probiotic mixture alone or in combination with Zn (30 and 60 mg) increased (P < 0.05) final body weight, feed conversion ratio (FCR), and total goblet cell count in duodenum compared with the control group. Morphometry of the duodenum also revealed an increase (P < 0.05) in villus height (VH) and the ratio of VH and crypt depth in all the supplemented groups, whereas ileal VH increased (P < 0.05) only in Zn60 group when compared with control. Based on our results, we concluded that compared to the individual supplementation, the combined effect of Zn and probiotic mixture was superior in improving the growth performance and histomorphology of the intestine; however, the effect of two levels of Zn did not vary when combined with probiotic.

Effect of <i>Bacillus cereus</i> and Phytase on the Expression of Musculoskeletal Strength and Gut Health in Japanese Quail (<i>Coturnix japonica</i>)

“…The villus width and crypt depth were higher ( P <0.05) in the phytase group than in the control group. The results of the current study relate to some previous studies ( Pirgozliev et al , 2007 ; Shah et al , 2019 ). The improved gut health observed in the present study may have been due to the proliferation of the ilium cells.…”

“…The improved gut health observed in the present study may have been due to the proliferation of the ilium cells. Shah et al (2019) reported that dietary probiotic supplementation improved the morphometry of the intestines by increasing the villus height and crypt depth.…”

Comparison of two probiotic preparations on growth performance, intestinal microbiota, nutrient digestibility and cytokine gene expression in broiler chickens

“…Previous studies have shown that probiotics improved broilers' growth performance and promoted greater populations of symbiotic microbiota in the intestine of broilers (Mountzouris et al 2007;Latorre et al 2017;Rhayat et al 2017). In a recent study, Shah et al (2019b) found that supplementation of Lactobacillus bacteria increased intestinal villus' height and absorptive capacity in broiler chickens that led to higher final BW of the birds. In our study, adding dietary B. licheniformis CH200, improved BWG, FCR, and PEF with no effect on FI during the whole period of the experiment (1-44 d).…”

Ameliorative Effect of Bacillus subtilis on Growth Performance and Intestinal Architecture in Broiler Infected with Salmonella

“…Probiotics are now considered an alternative to antibiotics and added in the animals’ diet as a microbial supplement [12]. It has been reported that probiotics enhance growth, provide protection against a wide range of pathogens and improve immunity [11,12,13]. Bacillus subtilis is naturally isolated from the gut of chickens and it is known to produce antimicrobial substances such as surfactants [11].…”