Abdel-Moneim E . Abdel-Moneim | Nuclear Research Center, Atomic Energy Authority (original) (raw)

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Papers by Abdel-Moneim E . Abdel-Moneim

Research paper thumbnail of Phytogenic Substances: A Promising Approach Towards Sustainable Aquaculture Industry

BENTHAM SCIENCE PUBLISHERS eBooks, Oct 31, 2022

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Research paper thumbnail of Probiotics in Poultry Nutrition as a Natural Alternative for Antibiotics

BENTHAM SCIENCE PUBLISHERS eBooks, Oct 31, 2022

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Research paper thumbnail of A review of shrimp aquaculture and factors affecting the gut microbiome

Aquaculture International

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Research paper thumbnail of Potential ameliorative role of Spirulina platensis in powdered or extract forms against cyclic heat stress in broiler chickens

Environmental Science and Pollution Research

Global warming has become intensified and widespread, threatening the world with causing acute he... more Global warming has become intensified and widespread, threatening the world with causing acute heatwaves that adversely affect poultry production and producers' profitability.Spirulina platensisis a precious and promising mitigating strategy to combat the detrimental impacts of heat stress due to its high contents of nutrients and bioactive components. The current study was designed to compare the incorporation impact ofS. platensispowder or aqueous extract on the growth and physiological responses of heat-stressed broiler chicks. Six hundred 1-day-old Ross 308 male broiler chicks were allocated into five experimental groups with six replicates of 20 chicks each. The control group fed the basal diet without additives, SPP1 and SPP2 groups fed the basal diet with 1 g/kg and 2 g/kgS. platensispowder, respectively, while SPE1 and SPE2 groups received 1 ml/L and 2 ml/LS. platensisaqueous extract in the drinking water, respectively. All birds were exposed to cyclic heat stress (34 ± ...

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Research paper thumbnail of Ochratoxicosis in poultry: occurrence, environmental factors, pathological alterations and amelioration strategies

World's Poultry Science Journal

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Research paper thumbnail of Genetic and physiological variation in two strains of Japanese quail

Journal of Genetic Engineering and Biotechnology, 2021

Background Detecting the genetic and physiological variations in two Japanese quail strains could... more Background Detecting the genetic and physiological variations in two Japanese quail strains could be used to suggest a new avian model for future breeding studies. Consequently, two estimations were performed on two Japanese quail strains: gray quail strain (GJQS) and white jumbo quail strain (WJQS). The first estimation was conducted on carcass characteristics, breast muscles, breast concentration of collagen type I, and body measurements. In contrast, blood samples were collected for the second estimation for genomic DNA extraction and genetic analysis. Results A total of 62 alleles out of 97 specific alleles (63.92%) were detected overall loci (14 microsatellite loci) for the two strains. A total of 27 specific alleles of WJQS were observed, and 35 were obtained for GJQS. The percentage of similarity was 48.09% ranged from 4.35 with UBC001 to 100% with GUJ0051. WJQS had greater body weights and a higher value of pectoral muscle and supracoracoideus muscle than GJQS. The breast mu...

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Research paper thumbnail of Synergistic effect of Spirulina platensis and selenium nanoparticles on growth performance, serum metabolites, immune responses, and antioxidant capacity of heat-stressed broiler chickens

Biological Trace Element Research, 2021

This study examined the effects of dietary Spirulina platensis (SP) at levels of 0, 5, and 10 g.k... more This study examined the effects of dietary Spirulina platensis (SP) at levels of 0, 5, and 10 g.kg-1 and selenium nanoparticles (SeNPs) at 0, 0.1, and 0.2 mg.kg-1, individually and in combination, on heat-stressed broiler chickens for 5 weeks. Four hundred fifty one-day-old Ross-308 chicks were allocated to 9 dietary groups with 5 replicates (10 chicks each). The control diet was consisted of corn-soybean-based basal diet. The obtained results displayed a significant increase in final body weight (p = 0.005) and weight gain during the periods from 22 to 35 days (p = 0.002) and 1 to 35 days (p = 0.005) in birds fed supplemented diets compared to those fed control diet, with the highest being in birds fed with both 10 g SP and 0.1 mg SeNPs. Feed conversion ratio was also improved in birds fed supplemented compared to control group. Dietary supplements significantly improved carcass dressing (p < 0.001), carcass yield (p = 0.001) percentages, and blood lipid profile. Blood triiodothyronine was higher (p = 0.005) with all treated diets except that contain 5 g SP compared to the control, with the highest being in birds fed diet contains 5 g SP + 0.2 mg SeNPs. Immunoglobulin subclasses IgG, IgM, and IgA were higher in birds fed supplemented diets compared to the control group. Antibody titers to Newcastle disease, avian influenza, and infectious bursal disease were numerically increased with dietary supplementation compared to the control group. Dietary treatments increased (p < 0.001) glutathione peroxidase and superoxide dismutase (SOD) levels, except diet contains 5 g SP for SOD level and decreased (p < 0.001) malondialdehyde level. It is concluded that dietary inclusion of SP and SeNPs, particularly their combination at levels 5 g SP plus 0.2 mg SeNPs kg-1 and 10 g SP plus 0.1 mg SeNPs kg-1, improved growth performance, carcass yield, immunity, and antioxidant capacity of heat-stressed broilers.

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Research paper thumbnail of Nigella sativa Seeds and Its Derivatives in Poultry Feed

Black cumin (Nigella sativa) seeds: Chemistry, Technology, Functionality, and Applications, 2020

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Research paper thumbnail of Productive performance, fertility and hatchability, blood indices and gut microbial load in laying quails as affected by two types of probiotic bacteria

Saudi Journal of Biological Sciences, 2021

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Research paper thumbnail of Comparative evaluation of single or combined anticoccidials on performance, antioxidant status, immune response, and intestinal architecture of broiler chickens challenged with mixed Eimeria species

Poultry Science, 2021

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Research paper thumbnail of Effect of graded levels of dietary Bacillus toyonensis and Bifidobacterium bifidum supplementation on growth, carcass traits and ileal histomorphometry and microbiota of growing quails

Saudi Journal of Biological Sciences, 2021

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Research paper thumbnail of Putative abrogation impacts of Ajwa seeds on oxidative damage, liver dysfunction and associated complications in rats exposed to carbon tetrachloride

Molecular Biology Reports, 2021

BACKGROUND Industrial toxicants such as Carbon tetrachloride (CCl4) are known to disrupt the oxid... more BACKGROUND Industrial toxicants such as Carbon tetrachloride (CCl4) are known to disrupt the oxidative-antioxidative balance, which generates excessive amounts of free radicals leading to chronic or acute liver damage. Natural antioxidants, including Ajwa, play an important role in protecting against hepatotoxicity. METHODS AND RESULTS This study investigated the prophylactic impacts of ajwa seeds aqueous extract (ASE) against hepatic oxidative injury in rats induced by CCl4. Eighty male Wistar albino rats were equally assigned to eight groups: one group receive no treatment, four groups were received CCl4-olive oil mixture [1:1(v/v)] (0.2 ml/100 g body weight (bw), intraperitoneally) two times/week for 4 weeks/rat alone or with 200 mg Vit. C/kg bw or 5 ml ASE/rat or both, and three groups received olive oil, Vit. C, or ASE. Vitamin C and ASE were orally administrated two weeks before CCl4 injection and 4 weeks concomitant with CCl4. Lipid peroxidation, lipogenesis-related genes, hepatic histopathology, Bax immunostaining and DNA fragmentation were assessed. ASE protected hepatic damage by suppressing oxidative stress and elevating activities of antioxidant enzymes, including superoxide dismutase and catalase. ASE also regulated hepatic dyslipidemia, hepatic lipid accumulation and expression of SREBP-1 and FAS genes in CCl4-treated rats. ASE decreased apoptosis through inhibition of CCl4 induced Bax activation in hepatocytes. CONCLUSION These observations provide evidence for the hepatoprotective potential of ASE via inhibiting hepatic lipogenesis and oxidative stress, suggesting being used as a natural product in attenuating CCl4 induced oxidative damage, hepatotoxicity and associated dysfunction.

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Research paper thumbnail of The role of polyphenols in poultry nutrition

Journal of Animal Physiology and Animal Nutrition, 2020

In the last two decades, poultry and animal industries became increasingly interested in using pl... more In the last two decades, poultry and animal industries became increasingly interested in using plant-based feed supplements, herbs and their derivatives to retain or enhance their health and productivity. These health benefits for the host mainly attributed to the secondary plant metabolites, namely polyphenols. Polyphenols are renowned for their antioxidant, immunomodulatory, anti-mutagenic and anti-inflammatory properties. However, despite these advantages of polyphenols, they have been characterized by poor absorption in the gut and low concentration in target cells that compromise their role as effective antioxidants. The low bioavailability of polyphenols necessitates the need for further investigations to harness their full potential in poultry farms. This review is existing evidence about the bioavailability of polyphenols and their antioxidant, immunomodulatory, antimicrobial, detoxification properties and their impacts on poultry performance.

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Research paper thumbnail of Nutritional manipulation to combat heat stress in poultry – A comprehensive review

Journal of Thermal Biology, 2021

Global warming and climate change adversely affect livestock and poultry production sectors under... more Global warming and climate change adversely affect livestock and poultry production sectors under tropical and subtropical conditions. Heat stress is amongst the most significant stressors influencing poultry productivity in hot climate regions, causing substantial economic losses in poultry industry. These economic losses are speculated to increase in the coming years with the rise of global temperature. Moreover, modern poultry strains are more susceptible to high ambient temperature. Heat stress has negative effects on physiological response, growth performance and laying performance, which appeared in the form of reducing feed consumption, body weight gain, egg production, feed efficiency, meat quality, egg quality and immune response. Numerous practical procedures were used to ameliorate the negative impacts of increased temperature; among them the dietary manipulation, which gains a great concern in different regions around the world. These nutritional manipulations are feed additives (natural antioxidants, minerals, electrolytes, phytobiotics, probiotics, fat, and protein), feed restriction, feed form, drinking cold water and others. However, in the large scale of poultry industry, only a few of these strategies are commonly used. The current review article deliberates the different practical applications of useful nutritional manipulations to mitigate the heat load in poultry. The documented information will be useful to poultry producers to improve the general health status and productivity of heat-stressed birds via enhancing stress tolerance, oxidative status and immune response, and thereby provide recommendations to minimize production losses due to heat stress in particular under the growing global warming crisis.

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Research paper thumbnail of Phytogenic Products and Phytochemicals as a Candidate Strategy to Improve Tolerance to Coronavirus

Frontiers in Veterinary Science, 2020

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Research paper thumbnail of Prebiotics can restrict Salmonella populations in poultry: a review

Animal Biotechnology, 2021

Antibiotics were over the years, the common supplement used for poultry production. There is a gl... more Antibiotics were over the years, the common supplement used for poultry production. There is a global trend to lessen antibiotics' use due to the contamination of consumed meat with antibiotic residues. Also, there is a concern that human treatments might be jeopardized due to the emergence of antibiotic-resistant bacteria. Prebiotics are attractive supplements, particularly in poultry production, because of the diversity of their effects, including pH amendments, production of short-chain fatty acids (SCFA) and the inhibition of pathogens' growth. The commonly used prebiotics are carbohydrate sources that cannot be easily broken down by chickens. However, they can efficiently be utilized by the intestinal tract's microflora. Oligosaccharides, polysaccharides and lactose are non-digestible carbohydrate sources that are typically used in poultry diets as prebiotics. This review covers current applications and prospects for using prebiotics to improve poultry performance and reduce pathogens, particularly Salmonella, in gastrointestinal tract.

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Research paper thumbnail of Probiotics in poultry feed: A comprehensive review

Journal of Animal Physiology and Animal Nutrition, 2020

The use of antibiotics to maintain animal well-being, promote growth and improve efficiency has b... more The use of antibiotics to maintain animal well-being, promote growth and improve efficiency has been practised for more than 50 years. However, as early as the 1950s, researchers identified concern on the development of resistant bacteria for the antibiotics streptomycin and tetracycline used in turkeys and broilers respectively. These findings laid the groundwork for agricultural officials to impose stricter regulatory parameters on the use of antibiotics in poultry feeds. Probiotics are live micro-organisms included in the diet of animals as feed additives or supplements. Commonly known as a direct-fed microbial, probiotics provide beneficial properties to the host, primarily through action in the gastrointestinal tract (GIT) of the animal. Supplementation of probiotics in the diet can improve animal health and performance, through contributions to gut health and nutrient use. For instance, supplementation of probiotics has been demonstrated to benefit farm animals in immune modulation, structural modulation and increased cytokine production, which positively affect the intestinal mucosal lining against pathogens. Bacillus subtilis has been a popular bacterium used within the industry and was shown to improve intestinal villus height. Increasing the villus height and structure of the crypts in the GIT allows for the improvement of nutrient digestion and absorption. Tight junctions maintain important defences against pathogenic bacteria and cellular homeostasis. Heat stress can be a major environmental challenge in the poultry industry. Heat stress causes the bird to fluctuate its internal core temperature beyond their comfort zone. To overcome such challenges, poultry will attempt to balance its heat production and dissipation through behavioural and physiological adaptation mechanisms.

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Research paper thumbnail of Effect of Feeding Wet Feed or Wet Feed Fermented by Bacillus licheniformis on Growth Performance, Histopathology and Growth and Lipid Metabolism Marker Genes in Broiler Chickens

Animals, 2021

The present study evaluated the effect of three feeding methods (dry feed, wet feed or wet feed f... more The present study evaluated the effect of three feeding methods (dry feed, wet feed or wet feed fermented with Bacillus licheniformis) on the growth performance, intestinal histomorphometry and gene expression of the lipid metabolism- and growth-related genes of broiler chickens. A total of 360 one-day-old Cobb-500 broiler chicks were randomly allotted into three groups containing four replicates with 30 birds each. The first group (control) was fed a dry mash basal diet. The second and third groups were fed wet feed and fermented wet feed. The final body weight and weight gain were reduced (p < 0.01) in the wet feed group, while they did not differ between the fermented wet feed and dry feed groups. Feed intake was not altered, and feeding on wet feed significantly (p < 0.01) increased the feed-to-gain ratio compared to the remaining groups. No differences between the three feeding methods in carcass characteristics, blood biochemistry and nutrient digestibility were observed...

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Research paper thumbnail of A Mixture of Exogenous Emulsifiers Increased the Acceptance of Broilers to Low Energy Diets: Growth Performance, Blood Chemistry, and Fatty Acids Traits

Animals, 2020

To investigate the influence of emulsifiers on broilers fed low-energy diets, the birds were dist... more To investigate the influence of emulsifiers on broilers fed low-energy diets, the birds were distributed into three sets—the control was fed the basal diet, the second group was fed diets 50 kcal/kg less than control, and the third group was fed diets 50 kcal/kg less than control and supplemented with 500 g/ton of emulsifiers. The used mixture of exogenous emulsifiers contains phosphatidyl choline, lysophosphatidyl choline, and polyethylene glycol ricinoleate. Although the feed intake was not meaningfully affected by dietary low-energy level with emulsifier inclusion (P = 0.42), the weight gain and FCR were clearly enhanced (P = 0.005 and P = 0.044, respectively). Protein and lipids utilization were decreased by reducing energy level, but they were increased by emulsifier supplementation (P = 0.022 and P = 0.011, respectively). Liver thiobarbituric acid-reactive substances (TBARs) and muscle palmitic acid concentrations were decreased by reducing the energy level and emulsifier’s su...

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Research paper thumbnail of Effect of Natural and Chemical Colorant Supplementation on Performance, Egg-Quality Characteristics, Yolk Fatty-Acid Profile, and Blood Constituents in Laying Hens

Sustainability, 2021

Natural and chemical colorants are attracting a lot of attention as sustainable feed additives du... more Natural and chemical colorants are attracting a lot of attention as sustainable feed additives due to their effect on food color and because presentation matters to consumers. Color also is a major sensory factor that helps consumers determine food quality and its possible health benefits. For example, highly colored egg yolks can only come from healthy laying hens fed a well-balanced, nutrient-rich diet. Consumers associate an intense yolk color with healthy, nutrient-rich food. There is a growing market request for eggs with rich yolk coloring. The purpose of the current study was to evaluate the impact of natural (paprika) and chemical (carmoisine) colorant supplementation on the performance, egg-quality characteristics, yolk fatty-acid profile, and blood constituents in laying hens. A total of 240 Bovans laying hens were randomly distributed in a completely randomized design in four treatments according to four experimental diets: a control diet (without supplementation of any c...

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Research paper thumbnail of Phytogenic Substances: A Promising Approach Towards Sustainable Aquaculture Industry

BENTHAM SCIENCE PUBLISHERS eBooks, Oct 31, 2022

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Probiotics in Poultry Nutrition as a Natural Alternative for Antibiotics

BENTHAM SCIENCE PUBLISHERS eBooks, Oct 31, 2022

Bookmarks Related papers MentionsView impact

Research paper thumbnail of A review of shrimp aquaculture and factors affecting the gut microbiome

Aquaculture International

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Potential ameliorative role of Spirulina platensis in powdered or extract forms against cyclic heat stress in broiler chickens

Environmental Science and Pollution Research

Global warming has become intensified and widespread, threatening the world with causing acute he... more Global warming has become intensified and widespread, threatening the world with causing acute heatwaves that adversely affect poultry production and producers' profitability.Spirulina platensisis a precious and promising mitigating strategy to combat the detrimental impacts of heat stress due to its high contents of nutrients and bioactive components. The current study was designed to compare the incorporation impact ofS. platensispowder or aqueous extract on the growth and physiological responses of heat-stressed broiler chicks. Six hundred 1-day-old Ross 308 male broiler chicks were allocated into five experimental groups with six replicates of 20 chicks each. The control group fed the basal diet without additives, SPP1 and SPP2 groups fed the basal diet with 1 g/kg and 2 g/kgS. platensispowder, respectively, while SPE1 and SPE2 groups received 1 ml/L and 2 ml/LS. platensisaqueous extract in the drinking water, respectively. All birds were exposed to cyclic heat stress (34 ± ...

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Research paper thumbnail of Ochratoxicosis in poultry: occurrence, environmental factors, pathological alterations and amelioration strategies

World's Poultry Science Journal

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Research paper thumbnail of Genetic and physiological variation in two strains of Japanese quail

Journal of Genetic Engineering and Biotechnology, 2021

Background Detecting the genetic and physiological variations in two Japanese quail strains could... more Background Detecting the genetic and physiological variations in two Japanese quail strains could be used to suggest a new avian model for future breeding studies. Consequently, two estimations were performed on two Japanese quail strains: gray quail strain (GJQS) and white jumbo quail strain (WJQS). The first estimation was conducted on carcass characteristics, breast muscles, breast concentration of collagen type I, and body measurements. In contrast, blood samples were collected for the second estimation for genomic DNA extraction and genetic analysis. Results A total of 62 alleles out of 97 specific alleles (63.92%) were detected overall loci (14 microsatellite loci) for the two strains. A total of 27 specific alleles of WJQS were observed, and 35 were obtained for GJQS. The percentage of similarity was 48.09% ranged from 4.35 with UBC001 to 100% with GUJ0051. WJQS had greater body weights and a higher value of pectoral muscle and supracoracoideus muscle than GJQS. The breast mu...

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Synergistic effect of Spirulina platensis and selenium nanoparticles on growth performance, serum metabolites, immune responses, and antioxidant capacity of heat-stressed broiler chickens

Biological Trace Element Research, 2021

This study examined the effects of dietary Spirulina platensis (SP) at levels of 0, 5, and 10 g.k... more This study examined the effects of dietary Spirulina platensis (SP) at levels of 0, 5, and 10 g.kg-1 and selenium nanoparticles (SeNPs) at 0, 0.1, and 0.2 mg.kg-1, individually and in combination, on heat-stressed broiler chickens for 5 weeks. Four hundred fifty one-day-old Ross-308 chicks were allocated to 9 dietary groups with 5 replicates (10 chicks each). The control diet was consisted of corn-soybean-based basal diet. The obtained results displayed a significant increase in final body weight (p = 0.005) and weight gain during the periods from 22 to 35 days (p = 0.002) and 1 to 35 days (p = 0.005) in birds fed supplemented diets compared to those fed control diet, with the highest being in birds fed with both 10 g SP and 0.1 mg SeNPs. Feed conversion ratio was also improved in birds fed supplemented compared to control group. Dietary supplements significantly improved carcass dressing (p < 0.001), carcass yield (p = 0.001) percentages, and blood lipid profile. Blood triiodothyronine was higher (p = 0.005) with all treated diets except that contain 5 g SP compared to the control, with the highest being in birds fed diet contains 5 g SP + 0.2 mg SeNPs. Immunoglobulin subclasses IgG, IgM, and IgA were higher in birds fed supplemented diets compared to the control group. Antibody titers to Newcastle disease, avian influenza, and infectious bursal disease were numerically increased with dietary supplementation compared to the control group. Dietary treatments increased (p < 0.001) glutathione peroxidase and superoxide dismutase (SOD) levels, except diet contains 5 g SP for SOD level and decreased (p < 0.001) malondialdehyde level. It is concluded that dietary inclusion of SP and SeNPs, particularly their combination at levels 5 g SP plus 0.2 mg SeNPs kg-1 and 10 g SP plus 0.1 mg SeNPs kg-1, improved growth performance, carcass yield, immunity, and antioxidant capacity of heat-stressed broilers.

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Research paper thumbnail of Nigella sativa Seeds and Its Derivatives in Poultry Feed

Black cumin (Nigella sativa) seeds: Chemistry, Technology, Functionality, and Applications, 2020

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Productive performance, fertility and hatchability, blood indices and gut microbial load in laying quails as affected by two types of probiotic bacteria

Saudi Journal of Biological Sciences, 2021

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Comparative evaluation of single or combined anticoccidials on performance, antioxidant status, immune response, and intestinal architecture of broiler chickens challenged with mixed Eimeria species

Poultry Science, 2021

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Effect of graded levels of dietary Bacillus toyonensis and Bifidobacterium bifidum supplementation on growth, carcass traits and ileal histomorphometry and microbiota of growing quails

Saudi Journal of Biological Sciences, 2021

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Putative abrogation impacts of Ajwa seeds on oxidative damage, liver dysfunction and associated complications in rats exposed to carbon tetrachloride

Molecular Biology Reports, 2021

BACKGROUND Industrial toxicants such as Carbon tetrachloride (CCl4) are known to disrupt the oxid... more BACKGROUND Industrial toxicants such as Carbon tetrachloride (CCl4) are known to disrupt the oxidative-antioxidative balance, which generates excessive amounts of free radicals leading to chronic or acute liver damage. Natural antioxidants, including Ajwa, play an important role in protecting against hepatotoxicity. METHODS AND RESULTS This study investigated the prophylactic impacts of ajwa seeds aqueous extract (ASE) against hepatic oxidative injury in rats induced by CCl4. Eighty male Wistar albino rats were equally assigned to eight groups: one group receive no treatment, four groups were received CCl4-olive oil mixture [1:1(v/v)] (0.2 ml/100 g body weight (bw), intraperitoneally) two times/week for 4 weeks/rat alone or with 200 mg Vit. C/kg bw or 5 ml ASE/rat or both, and three groups received olive oil, Vit. C, or ASE. Vitamin C and ASE were orally administrated two weeks before CCl4 injection and 4 weeks concomitant with CCl4. Lipid peroxidation, lipogenesis-related genes, hepatic histopathology, Bax immunostaining and DNA fragmentation were assessed. ASE protected hepatic damage by suppressing oxidative stress and elevating activities of antioxidant enzymes, including superoxide dismutase and catalase. ASE also regulated hepatic dyslipidemia, hepatic lipid accumulation and expression of SREBP-1 and FAS genes in CCl4-treated rats. ASE decreased apoptosis through inhibition of CCl4 induced Bax activation in hepatocytes. CONCLUSION These observations provide evidence for the hepatoprotective potential of ASE via inhibiting hepatic lipogenesis and oxidative stress, suggesting being used as a natural product in attenuating CCl4 induced oxidative damage, hepatotoxicity and associated dysfunction.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of The role of polyphenols in poultry nutrition

Journal of Animal Physiology and Animal Nutrition, 2020

In the last two decades, poultry and animal industries became increasingly interested in using pl... more In the last two decades, poultry and animal industries became increasingly interested in using plant-based feed supplements, herbs and their derivatives to retain or enhance their health and productivity. These health benefits for the host mainly attributed to the secondary plant metabolites, namely polyphenols. Polyphenols are renowned for their antioxidant, immunomodulatory, anti-mutagenic and anti-inflammatory properties. However, despite these advantages of polyphenols, they have been characterized by poor absorption in the gut and low concentration in target cells that compromise their role as effective antioxidants. The low bioavailability of polyphenols necessitates the need for further investigations to harness their full potential in poultry farms. This review is existing evidence about the bioavailability of polyphenols and their antioxidant, immunomodulatory, antimicrobial, detoxification properties and their impacts on poultry performance.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Nutritional manipulation to combat heat stress in poultry – A comprehensive review

Journal of Thermal Biology, 2021

Global warming and climate change adversely affect livestock and poultry production sectors under... more Global warming and climate change adversely affect livestock and poultry production sectors under tropical and subtropical conditions. Heat stress is amongst the most significant stressors influencing poultry productivity in hot climate regions, causing substantial economic losses in poultry industry. These economic losses are speculated to increase in the coming years with the rise of global temperature. Moreover, modern poultry strains are more susceptible to high ambient temperature. Heat stress has negative effects on physiological response, growth performance and laying performance, which appeared in the form of reducing feed consumption, body weight gain, egg production, feed efficiency, meat quality, egg quality and immune response. Numerous practical procedures were used to ameliorate the negative impacts of increased temperature; among them the dietary manipulation, which gains a great concern in different regions around the world. These nutritional manipulations are feed additives (natural antioxidants, minerals, electrolytes, phytobiotics, probiotics, fat, and protein), feed restriction, feed form, drinking cold water and others. However, in the large scale of poultry industry, only a few of these strategies are commonly used. The current review article deliberates the different practical applications of useful nutritional manipulations to mitigate the heat load in poultry. The documented information will be useful to poultry producers to improve the general health status and productivity of heat-stressed birds via enhancing stress tolerance, oxidative status and immune response, and thereby provide recommendations to minimize production losses due to heat stress in particular under the growing global warming crisis.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Phytogenic Products and Phytochemicals as a Candidate Strategy to Improve Tolerance to Coronavirus

Frontiers in Veterinary Science, 2020

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Prebiotics can restrict Salmonella populations in poultry: a review

Animal Biotechnology, 2021

Antibiotics were over the years, the common supplement used for poultry production. There is a gl... more Antibiotics were over the years, the common supplement used for poultry production. There is a global trend to lessen antibiotics' use due to the contamination of consumed meat with antibiotic residues. Also, there is a concern that human treatments might be jeopardized due to the emergence of antibiotic-resistant bacteria. Prebiotics are attractive supplements, particularly in poultry production, because of the diversity of their effects, including pH amendments, production of short-chain fatty acids (SCFA) and the inhibition of pathogens' growth. The commonly used prebiotics are carbohydrate sources that cannot be easily broken down by chickens. However, they can efficiently be utilized by the intestinal tract's microflora. Oligosaccharides, polysaccharides and lactose are non-digestible carbohydrate sources that are typically used in poultry diets as prebiotics. This review covers current applications and prospects for using prebiotics to improve poultry performance and reduce pathogens, particularly Salmonella, in gastrointestinal tract.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Probiotics in poultry feed: A comprehensive review

Journal of Animal Physiology and Animal Nutrition, 2020

The use of antibiotics to maintain animal well-being, promote growth and improve efficiency has b... more The use of antibiotics to maintain animal well-being, promote growth and improve efficiency has been practised for more than 50 years. However, as early as the 1950s, researchers identified concern on the development of resistant bacteria for the antibiotics streptomycin and tetracycline used in turkeys and broilers respectively. These findings laid the groundwork for agricultural officials to impose stricter regulatory parameters on the use of antibiotics in poultry feeds. Probiotics are live micro-organisms included in the diet of animals as feed additives or supplements. Commonly known as a direct-fed microbial, probiotics provide beneficial properties to the host, primarily through action in the gastrointestinal tract (GIT) of the animal. Supplementation of probiotics in the diet can improve animal health and performance, through contributions to gut health and nutrient use. For instance, supplementation of probiotics has been demonstrated to benefit farm animals in immune modulation, structural modulation and increased cytokine production, which positively affect the intestinal mucosal lining against pathogens. Bacillus subtilis has been a popular bacterium used within the industry and was shown to improve intestinal villus height. Increasing the villus height and structure of the crypts in the GIT allows for the improvement of nutrient digestion and absorption. Tight junctions maintain important defences against pathogenic bacteria and cellular homeostasis. Heat stress can be a major environmental challenge in the poultry industry. Heat stress causes the bird to fluctuate its internal core temperature beyond their comfort zone. To overcome such challenges, poultry will attempt to balance its heat production and dissipation through behavioural and physiological adaptation mechanisms.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Effect of Feeding Wet Feed or Wet Feed Fermented by Bacillus licheniformis on Growth Performance, Histopathology and Growth and Lipid Metabolism Marker Genes in Broiler Chickens

Animals, 2021

The present study evaluated the effect of three feeding methods (dry feed, wet feed or wet feed f... more The present study evaluated the effect of three feeding methods (dry feed, wet feed or wet feed fermented with Bacillus licheniformis) on the growth performance, intestinal histomorphometry and gene expression of the lipid metabolism- and growth-related genes of broiler chickens. A total of 360 one-day-old Cobb-500 broiler chicks were randomly allotted into three groups containing four replicates with 30 birds each. The first group (control) was fed a dry mash basal diet. The second and third groups were fed wet feed and fermented wet feed. The final body weight and weight gain were reduced (p < 0.01) in the wet feed group, while they did not differ between the fermented wet feed and dry feed groups. Feed intake was not altered, and feeding on wet feed significantly (p < 0.01) increased the feed-to-gain ratio compared to the remaining groups. No differences between the three feeding methods in carcass characteristics, blood biochemistry and nutrient digestibility were observed...

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Research paper thumbnail of A Mixture of Exogenous Emulsifiers Increased the Acceptance of Broilers to Low Energy Diets: Growth Performance, Blood Chemistry, and Fatty Acids Traits

Animals, 2020

To investigate the influence of emulsifiers on broilers fed low-energy diets, the birds were dist... more To investigate the influence of emulsifiers on broilers fed low-energy diets, the birds were distributed into three sets—the control was fed the basal diet, the second group was fed diets 50 kcal/kg less than control, and the third group was fed diets 50 kcal/kg less than control and supplemented with 500 g/ton of emulsifiers. The used mixture of exogenous emulsifiers contains phosphatidyl choline, lysophosphatidyl choline, and polyethylene glycol ricinoleate. Although the feed intake was not meaningfully affected by dietary low-energy level with emulsifier inclusion (P = 0.42), the weight gain and FCR were clearly enhanced (P = 0.005 and P = 0.044, respectively). Protein and lipids utilization were decreased by reducing energy level, but they were increased by emulsifier supplementation (P = 0.022 and P = 0.011, respectively). Liver thiobarbituric acid-reactive substances (TBARs) and muscle palmitic acid concentrations were decreased by reducing the energy level and emulsifier’s su...

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Effect of Natural and Chemical Colorant Supplementation on Performance, Egg-Quality Characteristics, Yolk Fatty-Acid Profile, and Blood Constituents in Laying Hens

Sustainability, 2021

Natural and chemical colorants are attracting a lot of attention as sustainable feed additives du... more Natural and chemical colorants are attracting a lot of attention as sustainable feed additives due to their effect on food color and because presentation matters to consumers. Color also is a major sensory factor that helps consumers determine food quality and its possible health benefits. For example, highly colored egg yolks can only come from healthy laying hens fed a well-balanced, nutrient-rich diet. Consumers associate an intense yolk color with healthy, nutrient-rich food. There is a growing market request for eggs with rich yolk coloring. The purpose of the current study was to evaluate the impact of natural (paprika) and chemical (carmoisine) colorant supplementation on the performance, egg-quality characteristics, yolk fatty-acid profile, and blood constituents in laying hens. A total of 240 Bovans laying hens were randomly distributed in a completely randomized design in four treatments according to four experimental diets: a control diet (without supplementation of any c...

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Research paper thumbnail of NUTRITIONAL STUDIES ON GROWING RABBITS

This work was carried out to study the effect of adding drinking water with either, copper sulfat... more This work was carried out to study the effect of adding drinking water with either, copper sulfate, ascorbic acid or drinking cooled water on growth performance (live body weight, body weight gain, feed intake, feed conversion and water consumption), digestibility coefficients of nutrients, carcass traits, some physiological parameters and economical efficiency of growing NZW rabbits under Egyptian summer conditions. Ninety-six weanling New Zealand White (NZW) male rabbits at five weeks of age and nearly similar average body weight (650.3 ± 3.7 g) were randomly divided into eight treatment groups (twelve rabbits in each group), and then each group was subdivided into four replicates, each of three rabbits. The rabbits were assigned to drinking water as follow: the 1st group was given fresh tap water without any additives as a control. The 2nd, 3rd and 4th groups were given tap fresh water supplemented with copper sulfate at levels of 40, 80 and 120 mg/L drinking water, respectively. The 5th, 6th and 7th groups were given tap fresh water supplemented with ascorbic acid at levels of 250, 500 and 750 mg/L drinking water, respectively. The 8th group was given cooled drinking water (CW) at 10-15°C. Results showed that supplementation of 40 or 80 mg copper sulfate/L or 500 mg ascorbic acid/L to heat-stressed rabbits drinking water improved final live body weight, body weight gain, daily water consumption, feed conversion ratio, performance index and economical efficiency. Hot carcass percentage was significantly (P<0.01) decreased with 80 mg/L copper sulfate and increased significantly (P<0.01) due to supplementation the drinking water with 250 mg ascorbic acid/L.
Cooled water (10-15°C) improved significantly (P<0.01) each of final body weight, body weight gain, feed conversion ratio, performance index, economical efficiency and decreased significantly (P<0.01) each of hot carcass %, dressed weight %, heart%, total giblets %, rectal temperature and respiration rate. Feed intake, mortality rate, digestibility coefficients of nutrients and feeding values as TDN and DE were not significantly affected by either different levels of copper sulfate and ascorbic acid in drinking water or drinking cooled water. Treatment of heat-stressed rabbits with 80 or 120 mg copper sulfate/L or all levels of ascorbic acid increased significantly (P<0.01) each of haemoglobin (Hb), packed cell volume (PCV), erythrocyte (RBCs) and serum total proteins however, mean corpuscular haemoglobin (MCH), mean corpuscular volume (MCV) and mean corpuscular haemoglobin concentration (MCHC) were not affected significantly by all levels of copper sulfate or ascorbic acid comparatively with unsupplemented group (control). Serum total proteins were insignificantly affected by the treatment with all levels of ascorbic acid. The treatment with drinking cooled water was insignificantly affected Hb, PCV, RBCs, MCH, MCV, MCHC, and serum total proteins. T3 and T4 were increased significantly (P<0.01 or P<0.05) by the treatment with 40 mg copper sulfate/L, 500 mg ascorbic acid/L or drinking cooled water while T3/T4 ratio was not affected significantly.
Finally, It could be use each of copper sulfate, ascorbic acid and cooled water as water supplements for NZW male rabbits to reduce the negative effects of heat stress, especially the levels of 40 mg/L of copper sulfate, 500 mg/L of ascorbic acid and cooled water which was the most efficient physical techniques for alleviation the heat stressed NZW male rabbits until marketing age in this study.

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