Publications by authors named "Shirzadi H"

Article Synopsis
  • Organic sources of trace minerals (TM) in broiler diets are shown to be more bioavailable and stable compared to inorganic sources, providing advantages during heat stress (HS) conditions.
  • A 42-day study with 672 male broiler chickens tested various diets containing advanced chelate technology-based TM (ACTM) during HS, including treatments that replaced or added to the existing inorganic TM (ITM) levels.
  • Results indicated that both the thermoneutral control (TNC) and ACTM100 groups improved growth, bone development, and immune response while reducing oxidative stress and inflammatory gene expression compared to the standard HS treatment.
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Background: Phytogenic additives would be helpful to mitigate the detrimental impact of Campylobacter jejuni on broiler chickens.

Objective: The experiment aimed to assess the effects of cinnamon, rosemary and oregano powder on physiological responses of broiler chickens challenged with C. jejuni from 0 to 42 days of age.

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Background: Phytogenic additives would be helpful to alleviate the adverse effect of Campylobacter jejuni on the performance and physiological responses of broiler chickens.

Objective: This experiment was carried out to investigate the effects of Echinacea purpurea (EP) and Thymbra spicata (TS) on the performance, nutrient digestibility, serum biochemistry, intestinal morphology, intestinal microbiota and immune responses of broilers challenged with C. jejuni from 0 to 42 days of age.

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Background: Our hypothesis centred on the potential to mitigate ascites outbreaks in birds exposed to cold stress by inhibiting pulmonary artery contraction through dietary intervention.

Objective: This study aimed to evaluate the effect of natural and synthetic medications on growth performance, ascites-related parameters and the expression of ascites-related genes in the lung tissue of broiler chickens under low ambient temperature.

Methods: We randomly assigned 450 one-day-old male Ross 308 chicks to six dietary treatments across five replicate pens, each containing 15 chicks.

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Article Synopsis
  • This study explored the potential benefits of a natural emulsifier called Lipidol in improving the growth and digestion of broiler chickens on low-energy diets.
  • The research involved 144 chickens divided into groups receiving varying levels of the emulsifier alongside low-energy feed, and results indicated improvements in feed efficiency and dry matter digestibility without affecting overall weight gain.
  • The findings recommend using 0.5 g/kg of the emulsifier to enhance nutrient absorption and intestinal health in chickens while compensating for energy loss in their diets.
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Water pollution by antibiotics is a global crisis, and its risk is critically more severe due to the explosive use of these drug compounds. A critical effective removal method to diminish this risk is heterogeneous photocatalysis and optimizing the conditions to reach higher mineralization efficiency. CeO anoparticles (NPs) were synthesized and characterized by X-ray diffraction (XRD), UV-Vis diffuse reflection spectroscopy (DRS), and Fourier transform infrared spectroscopy (FTIR) techniques.

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The effects of emulsifier blend (EB) supplementation of diets with various levels of metabolizable energy (ME) and crude protein (CP) on broiler performance, digestibility, gut morphology, and muscle fatty acid profile were investigated over a 42-d period. Diets were arranged factorially (2 × 2 × 3) and consisted of 2 levels of ME (normal [commercially recommended levels] and low [100 kcal/kg reduction in dietary ME]), 2 levels of CP and limiting amino acids (normal [commercially recommended levels] and low [95% of the normal CP level]), and 3 levels of EB supplementation (0, 1, and 2 g/kg of diet). A total of 1,200 one-day-old male broiler chickens (Ross 308) were randomly assigned to 12 treatment groups (5 pens/treatment with 20 birds/pen).

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Background: Two experiments were conducted to compare the growth-promoting (experiment 1), protective, and immunostimulatory effects (experiment 2) of salinomycin, probiotic, a vitamin-selenium complex, and Ferulago angulata hydroalcoholic extract (FAE) against coccidiosis in broilers. In each experiment, 350 1-day-old broiler chickens were equally divided in 7 groups: uninfected negative control (NC); infected positive control (PC); or PC supplemented with salinomycin (Sal); probiotic (Pro); a combination of vitamin E, vitamin C, and selenium (ECSe); 200 mg/kg of FAE (FAE200); or 400 mg/kg of FAE (FAE400). All these groups (except NC) were challenged via oral gavage with oocysts of mixed Eimeria spp.

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Poultry coccidiosis is an important disease affecting performance which is characterized by intestinal epithelium damageand increased mortality and is caused by the protozoa parasites of the genus Eimeria. This study evaluated the growth-promoting (experiment 1), protective, and immunostimulatory effects (experiment 2) of salinomycin and Scrophularia striata hydroalcoholic extract (SSE) against coccidiosis in broilers. Two experiments were conducted with 300 1-day-old broiler chickens, which were randomly assigned to 5 treatments with 6 replicate pens of 10 birds (experiment 1) or 10 replicate cages of 6 birds (experiment 2).

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1. The effect of essential oil (EO) on growth performance, nutrient utilisation, serum biochemistry, immune response, ileum morphology, microbial population and meat quality of broiler chickens fed a corn- or wheat-based diet were determined.2.

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Article Synopsis
  • Colonization of harmful bacteria like Campylobacter jejuni in the gastrointestinal tract of broiler chickens can impact both animal health and human food safety, which this study aimed to address.
  • The study tested the effects of salinomycin, direct-fed microbial, and an extract from Ferulago angulata against Campylobacter in chickens over a 6-week period involving 672 birds divided into different treatment groups.
  • Results showed that a high level of Ferulago angulata extract (400 mg/kg) improved chicken growth and immune responses, similar to other treatments, by reducing harmful bacteria levels and enhancing overall health.
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Probiotics, toxin binders, and plant extracts improve health and immunity of broiler chickens exposed to aflatoxin. The effects of licorice extract (LE), Protexin probiotic, toxin binder (Agrabound), and poultry litter biochar (PLB) in experimental aflatoxicosis were evaluated. In a completely randomized design, 504 broiler chickens were allotted to 7 treatments and 6 replicates with 12 broiler chickens in each.

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The present study was conducted to investigate the effects of two plant extracts as alternatives to dietary antibiotics in broiler chickens exposed to low ambient temperature. A total of 300 one-day-old male broiler chickens were randomly assigned to four dietary treatments (5 replicate pens; 15 broiler chickens each) which consisted of starter (d 0 to 10), and grower (d 10 to 28) diets. Dietary treatments included a basal diet (negative control, NC) and three similar diets that were either supplemented with 200 mg/kg of extract (PFE), L.

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Airbags are safety devices in vehicles effectively suppressing passengers' injuries during accidents. Although there are still many cases of eye injuries reported due to eye-airbag impacts in recent years. Biomechanical approaches are now feasible and can considerably help experts to investigate the issue without ethical concerns.

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Limitations of antifungals used in the treatment of candidiasis, as the development of resistant strains, are known by the scientific community. In this context, the aim of this study was to investigate the activity of 2-isopropyl-5-methylphenol (thymol) in combination with fluconazole (FLZ) against clinical Candida strains. The antifungal activity of thymol along with FLZ was evaluated by the Clinical Laboratory Standards Institute (CLSI) M27-A2 broth microdilution method.

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Purpose: Periprocedural myocardial injury (PMI) following percutaneous coronary intervention (PCI) has received great attention due to its significant association with mortality and morbidity. Accordingly, cardioprotection during PCI is one of the important therapeutic concerns. Regarding the potential cardiovascular benefits of pentoxifylline this study was performed to evaluate whether the pretreatment pentoxifylline could reduce PMI in patients who are undergoing elective PCI.

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Introduction: Percutaneous coronary intervention (PCI) may be associated with Thrombotic complications. Unfractionated heparin (UFH) is a potent and preferable antithrombotic agent during this procedure. Activated clotting time (ACT) is a good assay for accurate titration of UFH during PCI.

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