The aim of this study was to investigate the effect of a dietary probiotic supplement on bone mass and meat quality of broiler chickens. Two hundred ten 1-day-old male Ross 708 broiler chicks were divided among 21 floor pens (10 chicks per pen). The pens were randomly distributed to 1 of 3 dietary treatments containing a probiotic, Bacillus subtilis, at 0 (control), 0.25 (0.25X), and 0.5 (0.5X) g/kg (n = 7). Gait score, footpad dermatitis (FPD), leg straightness, and hock burn (HB) were examined at day 33, and a latency-to-lie test was performed at day 34. At the end of the experiment (day 35), plasma, right leg, and litter samples were collected for mineral contents, meat quality, bone morphometric parameters, and litter quality assessments. The results indicated that probiotic-fed birds stood much longer during the latency-to-lie test with a greater tibial length, weight, and strength as well as higher plasma levels of calcium and phosphorus compared with the controls. In addition, probiotic-fed birds' leg muscle had higher color lightness at both 30 min and 5 h postmortem and greater water-holding capacity with a trend for less cooking loss (P = 0.056) and lower pH values (P < 0.05) at 5 h postmortem. Probiotic-fed birds' leg meat was tastier (P < 0.05) at 24 h after slaughter. These probiotic effects were greater in the 0.5X group than in the 0.25X group. There were no treatment effects on other measured parameters including gait score, HB, FPD, tibial lateral and medial wall thickness, diaphysis and medullary canal diameters, robusticity and tibiotarsal indexes, plasma magnesium concentrations, and litter moisture and pH values (P > 0.05). These findings indicate that the probiotic supplement could be a useful management tool for improving broiler production and welfare by enhanced bone mass and meat quality.

Scope: To evaluate the chemopreventive efficacy of hesperidin (Hsd) in 1,2-dimethylhydrazine
(DMH)-induced colorectal cancer (CRC) and demonstrate its role in mothers against
decapentaplegic homolog 4(Smad4) and activin A signaling pathways.

Methods and results: A CRC rat model was established by DMH exposure, and the animals
were randomly divided into five groups: Control group, Hsd, DMH, DMHþHsd, and DMH
followed by Hsd. The resected colon was subjected to macroscopic, microscopic, molecular,
histopathological, and immunohistochemical examination. Activin A, Smad4, malondialdehyde
(MDA), nitric oxide (NO), reduced glutathione (GSH), and superoxide dismutase (SOD)
levels in tissues were also measured. The DMH group exhibited a significant increase in the
gene and protein expression of activin A as well as MDA and NO levels in tissues. There
was a significant reduction in the gene and protein expression of Smad4 as well as GSH
and SOD levels in tissues. Administration of Hsd significantly upregulated Smad4 and activin
A gene expressions in both the DMHþHsd and DMH followed by Hsd groups. Moreover,
Hsd improved the antioxidant status of the former two groups.

Conclusion: This study demonstrated the chemopreventive effect of Hsd against CRC by
modulating Smad4 and activin A signaling in vivo. Further studies are needed to demonstrate
its clinical value and explore its possible role in advanced malignancy.

Several studies have revealed that the combination of indomethacin, a nonsteroidal anti-inflammatory drug (NSAID), and vitamin D reduces the risk of common types of cancers. Nonetheless, research on the deal concentrations used to test the impact of vitamin D on colon cancer is defi-cient. Along these lines, the aim of the present study was to evaluate the possible role of indomethacin and vitamin D as a preventative as well as a therapeutic operator for colon cancer growth induced by dimethylhydrazine (DMH) in male Albino rats. Fifty male albino rats were utilized in this examination; five groups were assigned from the animals (10 animals each): i) control group considered healthy animals; ii) carcinogen group that received DMH only; iii) prophylactic group; iv) vitamin D and indomethacin-treated group; and v) 5-fluro-uracil (5-FU) group. Western blot technique was used to determine the expression of carcinoembryonic antigen (CEA) and platelet-derived growth factor (PDGF). Overexpression of CEA and PDGF was noted in the carcinogenic group, while expression of CEA and PDGF in the prophylactic, vitamin D and indomethacin and 5-FU groups were markedly reduced. There was a likewise decline in tissue caspase-3 activity and antioxidant parameters in the carcinogenic group, while, there was an increase in these markers in the 5-FU group as well as the prophylactic and vitamin D and indomethacin groups. The combination of vitamin D and indomethacin markedly reduced the incidence and severity of colon cancer. The molecular, biochemical and histopathological analysis related with the oral administration of vitamin D and indomethacin display its capacity to limit the frequency of colorectal cancer.

The natural co-occurrence of 42 mycotoxins was investigated in unprocessed oat grains grown in Ireland. The sample set included a total of 208 oat crops harvested during 2015–2016 and produced using conventional, organic, or gluten free farming systems. A range of different toxins was identified, including the major type A (neosolaniol, HT-2 and T-2 toxins, T-2 triol, and T-2-glucoside, co-occurring in 21 samples) and B trichothecenes (deoxynivalenol, nivalenol, and deoxynivalenol-3-glucoside), enniatins (B1, B, and A1, co-occurring in 12 samples), as well as beauvericin, alternariol, mycophenolic acid, and sterigmatocystin. The influences of sowing season, year, and production system were investigated, eventually indicating that the latter factor may have a higher impact than others on the production of certain mycotoxins in oats. The most frequently quantified compounds were HT-2 (51%) and T-2 (41%) toxins, with gluten free oats containing significantly lower concentrations of HT-2 compared to conventionally produced oats. Although the prevalence and concentrations of mycotoxin found in oat samples in this study should be substantially reduced by processing. However, as mycotoxin occurrence is clearly influenced by multiple factors, controlled field trials should be carried out to define optimal agronomic practices and mitigate mycotoxin production. Furthermore, this work highlights the need for regularly testing cereal-based foods with multi-residue analytical methods with wider specificities than the traditionally screened and regulated toxins, to generate knowledge on the occurrence of several mycotoxins that are, to date, rarely investigated.

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The current experiment was designed to evaluate the effects of dietary supplementations of zinc oxide nanoparticles (ZONPs) on some behavioural, performance, welfare and histopathological changes in broilers exposed to multidrug resistant Staphylococcus aureus (MRSA)-induced footpad dermatitis(FPD). Eighty-four males Indian River (IR) broilers were randomly allotted to six different dietary treatments as follows C-ve, C+ve, 10, 20, 30 and 40 ppm ZONPs from 7- 49ds of age. At day 28, broilers (n = 70) were subcutaneously injected 0.5mL of saline containing 5.3 × 107 cfu/ mL of S. aureus (MRSA) in each metatarsal foot pad. Control (non-infected) broilers were given 0.5 mL of saline (n = 14). Results clarified that non-infected birds and ZONPs fed birds had significantly higher standing and feeding activities and lower resting activities in comparison with the infected group. Also, the S. aureus infected group had significantly lower body weight gain (BWG) and higher feed conversion ratio (FCR) than the noninfected group. In addition, the non-infected birds and ZONPs groups had significantly lower object crossing and tonic immobility times (TI) and gait scores (GS) in comparison with the S. aureus group. Only ZONPs 30, 40 ppm and non-infected groups had significantly higher latency to lie time (LLT) and lower serum cortisol level in comparison with the S. aureus group. Moreover, 4 there were significant changes in the gross lesion score and histopathological lesion between the different groups. In conclusion, the dietary supplementation of ZONPs can reduce S. aureus induced negative effects of FPD in broilers

The current experiment was designed to evaluate the effects of dietary supplementations of zinc oxide nanoparticles (ZONPs) on some behavioural, performance, welfare and histopathological changes in broilers exposed to multidrug resistant Staphylococcus aureus (MRSA)-induced footpad dermatitis(FPD). Eighty-four males Indian River (IR) broilers were randomly allotted to six different dietary treatments as follows C-ve, C+ve, 10, 20, 30 and 40 ppm ZONPs from 7- 49ds of age. At day 28, broilers (n = 70) were subcutaneously injected 0.5mL of saline containing 5.3 × 107 cfu/ mL of S. aureus (MRSA) in each metatarsal foot pad. Control (non-infected) broilers were given 0.5 mL of saline (n = 14). Results clarified that non-infected birds and ZONPs fed birds had significantly higher standing and feeding activities and lower resting activities in comparison with the infected group. Also, the S. aureus infected group had significantly lower body weight gain (BWG) and higher feed conversion ratio (FCR) than the noninfected group. In addition, the non-infected birds and ZONPs groups had significantly lower object crossing and tonic immobility times (TI) and gait scores (GS) in comparison with the S. aureus group. Only ZONPs 30, 40 ppm and non-infected groups had significantly higher latency to lie time (LLT) and lower serum cortisol level in comparison with the S. aureus group. Moreover, 4 there were significant changes in the gross lesion score and histopathological lesion between the different groups. In conclusion, the dietary supplementation of ZONPs can reduce S. aureus induced negative effects of FPD in broilers

The current experiment was designed to evaluate the effects of dietary supplementations of zinc oxide nanoparticles (ZONPs) on some behavioural, performance, welfare and histopathological changes in broilers exposed to multidrug resistant Staphylococcus aureus (MRSA)-induced footpad dermatitis(FPD). Eighty-four males Indian River (IR) broilers were randomly allotted to six different dietary treatments as follows C-ve, C+ve, 10, 20, 30 and 40 ppm ZONPs from 7- 49ds of age. At day 28, broilers (n = 70) were subcutaneously injected 0.5mL of saline containing 5.3 × 107 cfu/ mL of S. aureus (MRSA) in each metatarsal foot pad. Control (non-infected) broilers were given 0.5 mL of saline (n = 14). Results clarified that non-infected birds and ZONPs fed birds had significantly higher standing and feeding activities and lower resting activities in comparison with the infected group. Also, the S. aureus infected group had significantly lower body weight gain (BWG) and higher feed conversion ratio (FCR) than the noninfected group. In addition, the non-infected birds and ZONPs groups had significantly lower object crossing and tonic immobility times (TI) and gait scores (GS) in comparison with the S. aureus group. Only ZONPs 30, 40 ppm and non-infected groups had significantly higher latency to lie time (LLT) and lower serum cortisol level in comparison with the S. aureus group. Moreover, 4 there were significant changes in the gross lesion score and histopathological lesion between the different groups. In conclusion, the dietary supplementation of ZONPs can reduce S. aureus induced negative effects of FPD in broilers

The current experiment was designed to evaluate the effects of dietary supplementations of zinc oxide nanoparticles (ZONPs) on some behavioural, performance, welfare and histopathological changes in broilers exposed to multidrug resistant Staphylococcus aureus (MRSA)-induced footpad dermatitis(FPD). Eighty-four males Indian River (IR) broilers were randomly allotted to six different dietary treatments as follows C-ve, C+ve, 10, 20, 30 and 40 ppm ZONPs from 7- 49ds of age. At day 28, broilers (n = 70) were subcutaneously injected 0.5mL of saline containing 5.3 × 107 cfu/ mL of S. aureus (MRSA) in each metatarsal foot pad. Control (non-infected) broilers were given 0.5 mL of saline (n = 14). Results clarified that non-infected birds and ZONPs fed birds had significantly higher standing and feeding activities and lower resting activities in comparison with the infected group. Also, the S. aureus infected group had significantly lower body weight gain (BWG) and higher feed conversion ratio (FCR) than the noninfected group. In addition, the non-infected birds and ZONPs groups had significantly lower object crossing and tonic immobility times (TI) and gait scores (GS) in comparison with the S. aureus group. Only ZONPs 30, 40 ppm and non-infected groups had significantly higher latency to lie time (LLT) and lower serum cortisol level in comparison with the S. aureus group. Moreover, 4 there were significant changes in the gross lesion score and histopathological lesion between the different groups. In conclusion, the dietary supplementation of ZONPs can reduce S. aureus induced negative effects of FPD in broilers

The current experiment was designed to evaluate the effects of dietary supplementations of zinc oxide nanoparticles (ZONPs) on some behavioural, performance, welfare and histopathological changes in broilers exposed to multidrug resistant Staphylococcus aureus (MRSA)-induced footpad dermatitis(FPD). Eighty-four males Indian River (IR) broilers were randomly allotted to six different dietary treatments as follows C-ve, C+ve, 10, 20, 30 and 40 ppm ZONPs from 7- 49ds of age. At day 28, broilers (n = 70) were subcutaneously injected 0.5mL of saline containing 5.3 × 107 cfu/ mL of S. aureus (MRSA) in each metatarsal foot pad. Control (non-infected) broilers were given 0.5 mL of saline (n = 14). Results clarified that non-infected birds and ZONPs fed birds had significantly higher standing and feeding activities and lower resting activities in comparison with the infected group. Also, the S. aureus infected group had significantly lower body weight gain (BWG) and higher feed conversion ratio (FCR) than the noninfected group. In addition, the non-infected birds and ZONPs groups had significantly lower object crossing and tonic immobility times (TI) and gait scores (GS) in comparison with the S. aureus group. Only ZONPs 30, 40 ppm and non-infected groups had significantly higher latency to lie time (LLT) and lower serum cortisol level in comparison with the S. aureus group. Moreover, 4 there were significant changes in the gross lesion score and histopathological lesion between the different groups. In conclusion, the dietary supplementation of ZONPs can reduce S. aureus induced negative effects of FPD in broilers