Mahmoud Alagawany

Zagazig University · Department of Poultry

The current feeding study was designed to investigate the influence of naringenin dietary supplementation on growth performance, carcass traits, blood biochemistry, immunity, antioxidant responses, and the cecal microbiota of growing Japanese quails. 200 one-week-old Japanese quails with an average body weight of 28.02±0.10 g were randomly clustere...

Ochratoxin A (OTA) is one of the mycotoxins in the agriculture and livestock sectors. The poultry sector suffered from significant economic losses due to the adverse impacts of OTA on the growth rate, feed conversion ratio, and livability. Thus, the present investigation aimed to determine the impact of chamomile essential oil supplementation again...

Recently, gold nanoparticles (Au Nps) have gained tremendous attention for its unique properties as a safe nanocarrier for delivering drugs that are used in different disease diagnoses. Although silver nanoparticles (Ag NPs) have been generally applied due to their strong antibacterial, antiviral, antifungal, and antimicrobial properties, their tox...

This work was designed to evaluate the advantages of using multi-strain probiotics feed (Bacillus subtilis, Bacillus licheniformis and Clostridium butyricum) (PRO) and alpha-monolaurin (AML) on laying performance, criteria of egg quality, blood parameters, and yolk fatty acids’ profile in laying hens. One hundred forty of Bovans brown laying hens a...

The present study aimed to evaluate the impact of dietary lysozyme levels on the growth performance, hematological and blood biochemical parameters, immunity, antioxidant capacity, and intestinal microbial count in broiler chickens. Three-hundred 1 d old birds (Cobb-avian500) were used and divided into five groups (five replicates per group, 60 bir...

This experiment was carried out to investigate the nutritional value of Spirulina and Dunaliella (SD) combination levels (0, 0.5, 1.0, 1.5, and 2.0 g/kg) that affected the laying Japanese quail's efficiency, egg quality, fertility, and blood biological indicators. A total of 150 adult Japanese quails, aged 8 wk, were divided into 5 treatments at ra...

This study aimed to evaluate the beneficial role of chamomile essential oil in improving productive and reproductive performances, egg quality, and blood metabolites and reducing the toxic effect of Ochratoxin A (OTA) in quail breeder's diets. A total of 144 mature quails, 8 wk old, were divided into 6 groups. The treatments were: G1 (the control),...

With the advancement in the egg industry sector, egg quality has assumed great significance in certain countries. Enhancements in the nutritional value of eggs may have direct affirmative consequences for daily nutrient intake and therefore for human health. Thus, affirmative improvement in egg quality boosts consumer preferences for eggs. Also, th...

Over 35 days feeding trial, the effects of lincomycin (LM) and butyrate glycerides (BG) supplementation on the growth performance, blood biochemical changes, immune response, and nutrient absorption related gene expression in broiler chickens were evaluated. A total of 480 one- day-old broiler chicks (Ross 308) were allotted into 6 groups (8 replic...

This study aimed to show the effect of bile acid (BA) and xylanase (Xyl) supplementation on the growth, fat digestibility, serum lipid metabolites, and ileal digesta viscosity of broilers. A total of 720 1 d old male broilers were allocated to one of nine treatments with four replicates in each under a factorial design arrangement of three levels o...

Cadmium (Cd) is an environmental pollutant known as endocrine disruptor . Cd has been reported to induce perturbations of the testicular functions and the subsequent decline of the male fertility of both animals and humans. Chlorella vulgaris (ChV) a species of green microalga has been reported to have multiple beneficial activities such as anti-in...

This study was conducted to examine the influence of dietary supplementation of biological nano-selenium (BNSe) on productive performance, hematology, blood chemistry, antioxidant status, immune response, cecal microbiota, and carcass traits of quails. In total, 180 Japanese quails (1 week old) were randomly allocated into four groups, with five re...

The aim of this research was to evaluate the influence of lettuce seed oil (LSO) on the performance, carcass yield, kidney and liver indices, immunity, lipid profile, and cecal microbiota of fattening chicks. A total of 200, 7-day-old Cobb-500 were distributed into 5 experimental groups; each group contained 5 replicates with 8 birds each. The firs...

Dunaliella salina (D. salina) is a well-known microalga that contains considerable amounts of nutritious and medicinal bioactive components. This work studied the modulatory role of D. salina against zinc oxide nanoparticle (ZnO NPs)-induced neurotoxic effects in adult zebrafish. Fishes were subjected to 0.69 mg L−1 (1/5th 96-h LC50) for 4 weeks; t...

The aim of this study is to evaluate the effect of Dunaliella salina and Spirulina (D + S) mixture on performance, carcass yield, kidney and liver markers, lipid profile, and immune responses of fattening chicks. Two hundred broiler chicks at 7 days old were distributed into 5 experimental groups, 5 replicates each with 8 chicks each. Group 1 was f...

Aquatic plants have been shown to improve performance when included in bird diets at an early stage, particularly when used to provide a small portion of the total protein needed. Azolla (Azolla pinnata) is a widely distributed heterosporous aquatic fern. Azolla resembles other common ferns, although it is green in colour and appears more like...

This study investigated the impact of Arthrospira platensis (A. platensis) as a dietary supplement on growth, carcass criteria, liver and kidney function, lipid profile, and immunity of growing Japanese quails. In a 28-day experiment, 240 unsexed 7-day-old quail chicks were used. The quail chicks were divided into 4 treatment sets, each comprising...

This study assessed the influence of supplementing the rabbit semen extender with various concentrations of glutathione (GSH) and taurine at 24, 48, and 72 h postchilling at 5°C. Semen samples were collected from 20 New Zealand bucks, and ejaculates with standard color, motility (>85%), about 0.5 mL volume, and ∼400 × 106/mL concentration were used...

Simple Summary Zinc oxide nanoparticles (ZnO-NPs) can exert toxic effects on living organisms. The fish olfactory epithelium is considered the first organ affected by ZnO-NPs, and we demonstrated that a 60-day exposure to ZnO-NPs induced significant malformations of the olfactory rosettes at histological, ultrastructural, and genetic levels in zebr...

Jatropha is a large, multipurpose, drought-tolerant plant with many traits and great potential as a biofuel crop. It originates from Central America but is now distributed throughout the tropics, including Africa and Asia. The study determines whether the dietary inclusion of raw Jatropha cucas meal (RJM, 3.5%) had negative impacts on the reproduct...

In our life scenarios, we are involuntarily exposed to many heavy metals that are well-distributed in water, food, and air and have adverse health effects on animals and humans. Cadmium (Cd) is one of the most toxic 10 chemicals reported by The World Health Organization (WHO), affecting organ structure and function. In our present study, we use one...

Citation: Farag, M.R.; Alagawany, M.; Mahdy, E.A.A.; El-Hady, E.; Abou-Zeid, S.M.; Mawed, S.A.; Azzam, M.M.; Crescenzo, G.; Abo-Elmaaty, A.M.A. Benefits of Chlorella vulgaris against Cadmium Chloride-Induced Hepatic and Renal Toxicities via Restoring the Cellular Redox Homeostasis and Modulating Nrf2 and NF-KB Pathways in Male Rats.

The aim of this study is to evaluate the beneficial effects of coconut essential oil on growth performance, carcass criteria, antioxidant status, and immune response of broiler chicks. A total of 192 un-sexed 7-days broiler chicks were divided into six treatment sets with four copies of 8 chicks per set. The groups were as follows: (1) basal diet (...

Due to their peculiar physicochemical properties, nanoparticles (NPs) have the potential to have a detrimental impact on molecular (proteins and nucleic acids), subcellular, cellular, tissue, and organism levels. However, available works on the harmful effects of the water-borne ionizable NPs, such as aluminum oxide nanoparticles (ALNPs) on fish ar...

The present study aims to evaluate the antimicrobial activity (in vitro study) of olive leaves powder (OLP) and its role in improving the broiler productivity, carcass criteria, blood indices, and antioxidant activity. A total of 270 one-day-old broiler chickens were distributed into 6 treatment groups as follows: the first group: basal diet withou...

According to the Food and Agricultural Organization, global poultry output increased from approximately 115 million tons in 2016 to around 136 million tons in 2023. The production of poultry has increased significantly in tandem with the dramatic uptick in meat and egg demand. Feed accounts for between 65 and 70 percent of total production costs, m...

In the last decade, both biochar production and use have seen a surge in popularity. Biochar is comparable to charcoal and activated charcoal in that it is a pyrogenic carbonaceous matter made by pyrolyzing organic carbon-rich materials. There is a lack of research into the effects of adding biochar to animal feed. Based on the reviewed literature,...

Positive results have been seen when bioactive components from herbal plants are added to poultry diets. Efficacy in feeding, digestion of nutrients, antioxidant health, immunological indices, and other factors can all be improved with the help of these additives, which in turn increases growth rates and improves poultry welfare.Several researches...

Mature Japanese quails (n. 180), aged 8 wk, were divided into 6 groups to evaluate the influence of dietary Astragalus membranaceus powder on laying and reproductive performances, quality of egg, and blood metabolites. A completely randomized design experiment was performed including 6 groups. The first group of quails was served as control (basal...

Despite the usage of nanoparticles (NPs) is rapidly increasing, several experts have noted the risk of their release into ecosystems and their potential negative impacts on biological systems. However, the available studies on the neurobehavioral impacts of aluminum oxide nanoparticles (Al2O3NPs) on aquatic organisms are little. Hence, this study t...

The present study explored the neurotoxic impacts of lead (Pb) and the potential alleviating effect of Yucca schidigera extract (YSE) in Japanese quails. About 360 adult Japanese quails (8 weeks old) were used. Quails were randomly distributed to six groups with 4 replicates each: the control group (fed basal diet, BD), the BD + YSE1 and BD + YSE2...

The study investigated the effect of enzymes as a toxin detoxifier (DETOXIZYME) dietary supplementation on performance during growth, blood chemistry, and immunity under clostridia infection in chickens. A total of 480, day-old male chicks were randomly distributed to four groups, with six replicates of 20 birds each. The first control negative tre...

Poultry is an important source of human protein so research was done to identify methods of improving the feed quality and overcoming the challenge of using this feed type. Poultry feed is commonly contaminated with certain organisms like fungi which produce a group of secondary metabolites called mycotoxins, which affect the quality of the feed. T...

Recently, nanotechnology has become an important research field involved in improving animal productivity, including aquaculture. In this field, silver nanoparticles (AgNPs) have gained interest as antibacterial, antiviral, and antifungal agents. On the other hand, their extensive use in other fields increased natural water pollution causing hazard...

The current trial aimed to determine the impacts of fed goats with hydroponic fodder-based maize or barley rations on nutrient digestibility, growth and efficiency of consumed feed, and some blood constituents. Twenty-four post-weaned growing Beetal male kids (3 months of age with an initial body weight of 12.4±0.03 kg) were randomly allocated into...

Increase in drug resistance as well as ineffective immunization efforts against various pathogens (viruses, bacteria and fungi) pose a significant threat to the poultry industry. Spirulina is one of the most widely used natural ingredients which is becoming popular as a nutritional supplement in humans, animals, poultry and aquaculture. It contains...

Botanical medicine is an ancient medicine used by human beings for thousands of years. Recently, phytobiotics, which are phytochemical compounds derived from plants, are investigated and used widely in the veterinary field as an alternative feed additive to antibiotic growth promoters. Phytobiotic feed additives can be defined as plants-/herbs-deri...

Scientists throughout the world are increasingly interested in developing novel technologies and materials as alternatives to antibiotics in the poultry industry. The researchers’ efforts include not just substituting antibiotic growth promoters in poultry feeds, but also reducing the total overuse of veterinary antibiotics in the poultry industry...

Due to the increasing demand for antibiotic-free livestock products from the consumer side and the ban on the use of antibiotic growth promoters, the poultry feed industry is increasingly interested in developing more alternatives to cope with this problem. Organic acids (butyric acid) have many beneficial effects on poultry health, performance, an...

Cumin (Cuminum cyminum Linn) seeds is an annual plant of the family Umbelliferne, with its use dating back to ancient times when it was cultivated for its medicinal and culinary potential. Alkaloids, coumarins, anthraquinones, flavonoids, glycosides, proteins, resins, saponins, tannins, and steroids might all be found in cumin seeds. In particular,...

Cancer is a challenging ailment and represents the main reason for death worldwide for humans and animals. Although great developments have hindered cancer progression, several adverse effects are associated with modern chemotherapy. Natural remedies, such as the usage of medicinal plant or their products in cancer treatment, may decrease prejudici...

This handbook focuses on the use of antibiotic alternatives in poultry and fish feed. Chapters in the book cover a range of natural ingredients in feed and the impacts of these natural feed additives on growth, production, reproduction and health status of poultry and fish. All chapters give a holistic approach to how organic feed additives (herbal...

This handbook focuses on the use of antibiotic alternatives in poultry and fish feed. Chapters in the book cover a range of natural ingredients in feed and the impacts of these natural feed additives on growth, production, reproduction and health status of poultry and fish. All chapters give a holistic approach to how organic feed additives (herbal...

This handbook focuses on the use of antibiotic alternatives in poultry and fish feed. Chapters in the book cover a range of natural ingredients in feed and the impacts of these natural feed additives on growth, production, reproduction and health status of poultry and fish. All chapters give a holistic approach to how organic feed additives (herbal...

This handbook focuses on the use of antibiotic alternatives in poultry and fish feed. Chapters in the book cover a range of natural ingredients in feed and the impacts of these natural feed additives on growth, production, reproduction and health status of poultry and fish. All chapters give a holistic approach to how organic feed additives (herbal...

This handbook focuses on the use of antibiotic alternatives in poultry and fish feed. Chapters in the book cover a range of natural ingredients in feed and the impacts of these natural feed additives on growth, production, reproduction and health status of poultry and fish. All chapters give a holistic approach to how organic feed additives (herbal...

This handbook focuses on the use of antibiotic alternatives in poultry and fish feed. Chapters in the book cover a range of natural ingredients in feed and the impacts of these natural feed additives on growth, production, reproduction and health status of poultry and fish. All chapters give a holistic approach to how organic feed additives (herbal...

This handbook focuses on the use of antibiotic alternatives in poultry and fish feed. Chapters in the book cover a range of natural ingredients in feed and the impacts of these natural feed additives on growth, production, reproduction and health status of poultry and fish. All chapters give a holistic approach to how organic feed additives (herbal...

This handbook focuses on the use of antibiotic alternatives in poultry and fish feed. Chapters in the book cover a range of natural ingredients in feed and the impacts of these natural feed additives on growth, production, reproduction and health status of poultry and fish. All chapters give a holistic approach to how organic feed additives (herbal...

This handbook focuses on the use of antibiotic alternatives in poultry and fish feed. Chapters in the book cover a range of natural ingredients in feed and the impacts of these natural feed additives on growth, production, reproduction and health status of poultry and fish. All chapters give a holistic approach to how organic feed additives (herbal...

This handbook focuses on the use of antibiotic alternatives in poultry and fish feed. Chapters in the book cover a range of natural ingredients in feed and the impacts of these natural feed additives on growth, production, reproduction and health status of poultry and fish. All chapters give a holistic approach to how organic feed additives (herbal...

This handbook focuses on the use of antibiotic alternatives in poultry and fish feed. Chapters in the book cover a range of natural ingredients in feed and the impacts of these natural feed additives on growth, production, reproduction and health status of poultry and fish. All chapters give a holistic approach to how organic feed additives (herbal...

This handbook focuses on the use of antibiotic alternatives in poultry and fish feed. Chapters in the book cover a range of natural ingredients in feed and the impacts of these natural feed additives on growth, production, reproduction and health status of poultry and fish. All chapters give a holistic approach to how organic feed additives (herbal...

Microalgae are rich in bioactive compounds including pigments, proteins, lipids, polyunsaturated fatty acids, carbohydrates, and vitamins. Due to their non-toxic and nutritious characteristics, these are suggested as an important food for many aquatic animals. Dunaliella salina is a well-known microalga that accumulates valuable amounts of caroteno...

Antibiotics have been widely used in the poultry sector to improve production performance, but this has resulted in consumer health concerns. Growing demand for organic products has prompted scientists to develop new methods and materials in the poultry industry. These include the use of medicinal plants or beneficial microorganisms. If proper...

The present study aimed to investigate the effect of dietary crude fiber and fat levels on growth, carcass, digestive enzymes, intestinal microbiota and economics in growing Egyptian geese. A total number of 150 Egyptian goslings, 4 weeks old, with nearly the same body weights were randomly distributed in to six groups in a 3 × 2 factorial arrangem...

This work aimed to assess how Portulaca oleracea extract (POE) affected Japanese quail's growth, carcass features, blood parameters, digestibility coefficients, and microbiological aspects. A total of 225 seven -days-old Japanese quails were allotted into five experimental groups. Birds were divided as follows: group 1) received only the base diet...

Medicines derived from plant sources are called phytobiotics or botanical medicine. For therapeutic purposes different parts (flowers, fruits, roots, leaves, seeds, bark and berries) or whole plants are utilised. Phytobiotic feed additives can be defined as plants/herbs derived products added to the feed in order to improve the performance of anima...

The recent appearance of monkeypox (MPX) outbreaks in multiple non-endemic countries beyond Africa has now posed a public health emergency of international concern amid its rising cases. Being a neglected / rare disease, much attention had not been paid on its management and treatment aspects. The present article provides updated information on cli...

Evolution of aquaculture is essential to supply the need and meet the demand for aquatic-based protein due to increasing global population and increased market demand. In the last decades, the shrimp sector has been considered one of the fastest growing aquaculture systems due to its economic significance. Growing efforts have been made to increase...

Clove contains various biological compounds that make it a valuable food ingredient in terms of its nutritional value and its use as an internationally recognized herb. It is the primary source of phenolic molecules such as flavonoids, hydroxybenzoic acids, hydroxyphenyl propionate, and eugenol. High concentrations of fiber, magnesium, potassium, c...

Medicinal plants with active ingredients have shown great potential as natural and sustainable additives in livestock and poultry diets as growth promoters, performance, feed conversion ratio, digestibility of nutrient enhancers, and antioxidants and immune system modulators. Among active ingredients, phytosterols, which are plant-based bio-factors...

Mycotoxins are secondary metabolites, and some important groups of mycotoxins are aflatoxins, ochratoxins, ergot alkaloids, citrinin,patulin and fusarium, which include trichothecenes, fumonisins and zearalenone. Ochratoxins are one of the most lethal mycotoxins; specifically, Ochratoxins A (OTA), which is perilous to the productivity and wellbeing...

The widespread usage of nanotechnology in many essential products has raised concerns about 24 the possible release of nanoparticles (NPs) into aquatic habitats. Cerium dioxide (CeO 2) has gained the most 25 interest in the worldwide nanotechnology industry of all types of Ce minerals owing to its beneficial uses in a 26 wide range of industry prac...

The application of high doses of mineral feed additives in the form of inorganic salts increases the growth performance of animals, but at the same, due to their low bioavailability, can contaminate the environment. Therefore, there is a need to find a replacement of administering high doses of minerals with an equally effective alternative. The ap...

The in ovo application of some supplements as immunostimulants, vaccines, carbohydrates, amino acids, and nanomaterials is have a great global consideration among scientific researchers for the encouragement of production performance rates and immunity and assisting the health of poultry. It occurred by direct application of the nutrients and biolo...

The current study was conducted to study the impact of low-CP protein diets with different sources of zinc (zinc oxide-ZnO and zinc methionine-Zn-Met) on performance, lipid profile, immune and antioxidant parameters of quail breeders. A total number of 216 Japanese quail at 8 weeks of age were randomly distributed into nine (3 × 3) groups, with fou...

The present study was conducted to investigate the behavioral, biochemical, and molecular responses of Oreochromis niloticus fish exposed to sublethal concentration of thallium (T1; 1/10th of 96-h LC50 = 41.9 μg/L) for 60 days. The beneficial role of Astragalus membranaceus polysaccharides (ASP) as a dietary supplement (0.15% and 0.30% diet) in att...

Generally, fishes are continuously exposed to several aquatic pollutants originating from agricultural runoff, mining activities, discharges from industrialized regions, or other sources that throw their polluted water into the aquatic ecosystems. Fish exposure to pollutants such as heavy metals, pesticides, herbicides, and other toxic chemicals wi...

Determining the optimal requirements from dietary fiber and fat for Egyptian geese is a matter of great concern regarding health, production and growth. Therefore, the current study estimated the effects of different dietary fiber and fat levels on functions of liver and kidney, lipid profile, immunity and antioxidant measurements of the growing Eg...

This work evaluated the effect of sun-dried tomato waste (SDTP) on growth, carcasses, digestibility of nutrients, digestive enzymes, blood chemistry and intestinal microbiota of 250 one-week-old growing Japanese quail. The birds were randomly distributed into 5 equal groups. Group 1 was fed on the basal diet (BD) (control), Groups 2, 3, 4 and 5 wer...

Nowadays, the application of immunomodulators in aquaculture has become of an urgent need because of high incidence of fish and shrimp diseases. For a long time, researchers have paid great interest to find suitable, relatively economical, and environmentally safe immunostimulant products to be used either as feed or water additives to boost immuni...

This study aimed to determine the influence of in ovo injection of Astragalus membranaceus polysaccharide on growth, feed consumption, feed conversion ratio, carcasses, hematology, and blood metabolites in Cobb 500 chicks. At the 7th day of incubation, a total of 250 eggs were randomly divided into five groups with 5 replications of 10 eggs of each...

With the wide expansion of the aquaculture sector, aquatic organisms are exposed to an increasing number of environmental stressors which affect their behavior, physiology and eventually their health and performance. As fish is an ectotherm, water temperature is one of the most important abiotic factors which affect the growth, metabolism, immunity...

The present work was conducted to assess the effect of diets supplementation to heat-stressed buck rabbits with different zinc (Zn) sources on the thermoregulatory and hematobiochemical parameters, and antioxidant status. A total of 24 mature buck rabbits (32–36 weeks of age) were randomly distributed into four groups (6 each). Group 1, non-heat-st...

The present experiment was performed to investigate the toxic impact of thiacloprid (TH) on the brain of developing chicken embryos and also to measure its influence on the behavioral responses of hatchlings. The role of chicoric acid (CA) and rosmarinic acid (RA) in modulating the resulted effects was also investigated. The chicken eggs were in ov...

The chicken gut is the habitat to trillions of microorganisms that affect physiological functions and immune status through metabolic activities and host interaction. Gut microbiota research previously focused on inflammation; however, it is now clear that these microbial communities play an essential role in maintaining normal homeostatic conditio...

The poultry industry faces several obstacles and challenges, including the changes in global temperature, increase in the per capita demand for meat and eggs, and the emergence and spread of various diseases. Among these, environmental challenges are one of the most severe hurdles impacting the growth and productivity of poultry. In particular, the...

Betaine can operate as an osmolyte and a methyl donor. Betaine is an osmolyte and a methyl donor. Betaine is likewise a zwitterion with osmotic capabilities that can help an animal cope with osmotic stress. Previous investigations have suggested that betaine has various impacts, albeit these studies do not consistently provide the same results. Die...