Youssef A. Attia
YOU?
Author Swipe
View article: Seasonal Variations and Dietary Protein-Energy Levels: Effects on Laying Quails under Subtropical Conditions
Seasonal Variations and Dietary Protein-Energy Levels: Effects on Laying Quails under Subtropical Conditions Open
Optimizing the diet of laying Japanese quail (Coturnix japonica) is essential to enhance their productivity. The experiment evaluated the efficiency, digestive parameters, and nutrient composition of laying Japanese quail during warm and c…
View article: Wheat Bran Beyond a Fiber Source for Sustainable Poultry Nutrition: A Comprehensive Review
Wheat Bran Beyond a Fiber Source for Sustainable Poultry Nutrition: A Comprehensive Review Open
Wheat bran (WB), but also hulls from rice, oat, sunflower and soybean, wood chips, and industrial fiber byproducts are among the main sources of insoluble fiber in poultry nutrition. Insoluble fiber (IF) in poultry is more than a diet-dilu…
View article: Optimising rabbit performance under cyclic heat stress: effects of nano-chromium chloride on growth, immunity, antioxidant defense, and gene expression in New Zealand White and Rex breeds
Optimising rabbit performance under cyclic heat stress: effects of nano-chromium chloride on growth, immunity, antioxidant defense, and gene expression in New Zealand White and Rex breeds Open
Heat stress significantly impairs rabbit productivity, especially in hot climates. This study evaluated the impact of nano-chromium chloride (nano-CrCl3) supplementation on growth performance, antioxidant status, immunity, and gene express…
View article: Gut dysbiosis: Nutritional causes and risk prevention in poultry, with reference to other animals
Gut dysbiosis: Nutritional causes and risk prevention in poultry, with reference to other animals Open
The poultry gastrointestinal microbiome consists of more than 900 bacterial species and their metabolites; it serves as an indicator of bird health and is influenced by nutrition, medication, and other factors. Dysbiosis is a form of reduc…
View article: Impact of low-protein diets on broiler nutrition, production sustainability, gene expression, meat quality and greenhouse gas emissions
Impact of low-protein diets on broiler nutrition, production sustainability, gene expression, meat quality and greenhouse gas emissions Open
This review explores the effects of low-crude protein diets (LCPD) on broiler chicken production, focusing on sustainability, gene expression, meat quality and environmental impacts. LCPD supplemented with amino acids, enzymes, and probiot…
View article: Gut Dysbiosis: Causes and Prevention Strategies – A Review
Gut Dysbiosis: Causes and Prevention Strategies – A Review Open
Gut dysbiosis in poultry presents a major challenge, requiring a comprehensive approach to sustain optimal gut health and ensure animal welfare. This review emphasizes the importance of integrated management practices and explores alternat…
View article: Desempenho produtivo, medidas corporais e composição da carne de juvenis de tilápia-do-Nilo suplementados com lentilha d’água fresca
Desempenho produtivo, medidas corporais e composição da carne de juvenis de tilápia-do-Nilo suplementados com lentilha d’água fresca Open
Resumo A Lemna minor (LM) ou lentilha d’água é uma fonte de proteína acessível e sustentável, principalmente para uso por pequenos produtores. Neste estudo, foi determinada a composição da LM fresca utilizada e foi avaliado o seu efeito so…
View article: Strategies for Decontamination and Alleviation of Mycotoxins for Sustainable Poultry Farming – A Review
Strategies for Decontamination and Alleviation of Mycotoxins for Sustainable Poultry Farming – A Review Open
Mycotoxins including aflatoxins (AF), zearalenone (ZEN), ochratoxin A (OTA), fumonisins (FUM), trichothecenes (TCN), deoxynivalenol (DON), and T-2 toxin had negative influences on poultry productivity causing a depression in performance, p…
View article: Impact of Low-Protein Diets on Broiler Nutrition, Production Sustainability, Gene Expression, Meat Quality and Greenhouse Gas Emissions
Impact of Low-Protein Diets on Broiler Nutrition, Production Sustainability, Gene Expression, Meat Quality and Greenhouse Gas Emissions Open
View article: Wheat Bran Beyond a Fiber Source for Sustainable Poultry Nutrition: A Comprehensive Review
Wheat Bran Beyond a Fiber Source for Sustainable Poultry Nutrition: A Comprehensive Review Open
View article: Productive performance, body measurements, and meat composition in Nile tilapia juveniles supplemented with fresh duckweed
Productive performance, body measurements, and meat composition in Nile tilapia juveniles supplemented with fresh duckweed Open
Lemna minor (LM) or duckweed is a cheap and sustainable protein source, mainly for use by small fish farmers. In this study was determined the composition of the used fresh LM and evaluated its effect on performance, body measurements, and…
View article: Assessment of bacterial phytase and citric acid concentrations on economic traits, nutrients’ digestibility and protein metabolites of broiler chickens fed diets containing marginal level of nutrients
Assessment of bacterial phytase and citric acid concentrations on economic traits, nutrients’ digestibility and protein metabolites of broiler chickens fed diets containing marginal level of nutrients Open
The aim of the experiment was to study the influence of different concentrations of bacterial phytase and citric acid on growth performance, digestibility, carcase traits, meat quality and blood plasma metabolites of broiler chickens fed d…
View article: Effect of dietary microalgae on growth performance and health in meat-type quails
Effect of dietary microalgae on growth performance and health in meat-type quails Open
View article: Climate change and its effects on poultry industry and sustainability
Climate change and its effects on poultry industry and sustainability Open
By 2050, the need for poultry products is predicted to quadruple globally, mostly as a result of rising living standards. In the meantime, the quality of feed crops and forage, availability of water, poultry diseases, and poultry reproduct…
View article: Use of black pepper oil in growing-quail diets and its impact on growth, carcass measurements, intestinal microbiota, and blood chemistry
Use of black pepper oil in growing-quail diets and its impact on growth, carcass measurements, intestinal microbiota, and blood chemistry Open
Supplements derived from plants are utilized to maintain and promote the growth efficiency of animals. The use of black pepper oil (BPO) has recently generated significant scientific interest, primarily because of its potential beneficial …
View article: Enhancing the nutritional values of egg yolks of laying hens by different dietary sources of omega-3 fatty acids, vitamin e and trace elements
Enhancing the nutritional values of egg yolks of laying hens by different dietary sources of omega-3 fatty acids, vitamin e and trace elements Open
View article: INVESTIGATING THE POTENTIAL OF SILYMARIN AND/OR SPIRULINA PLATENSIS TO ATTENUATE THE DELETERIOUS CONSEQUENCES OF AFLATOXIN CONTAMINATION IN BROILERS’ FEEDS
INVESTIGATING THE POTENTIAL OF SILYMARIN AND/OR SPIRULINA PLATENSIS TO ATTENUATE THE DELETERIOUS CONSEQUENCES OF AFLATOXIN CONTAMINATION IN BROILERS’ FEEDS Open
The aim of this investigation was to establish the impact of silymarin and/or Spirulina platensis in mitigating the adverse effects of aflatoxin (AF) present in poultry feed. A total of 450 one-day-old, unsexed Ross 308 broiler chicks were…
View article: Assessment of Green Tea and/or Ginger Powder on Growth Performance, Carcass Traits, and Blood Profiles of Broilers Exposed to Heat Stress Conditions for Sustainable Broiler Farming
Assessment of Green Tea and/or Ginger Powder on Growth Performance, Carcass Traits, and Blood Profiles of Broilers Exposed to Heat Stress Conditions for Sustainable Broiler Farming Open
The present study is designed to assess the influence of supplementation with green tea powder (GTP) and/or ginger powder (GP) supplements on various aspects of the welfare and productivity of chicks aged 1 to 5 weeks, exposed to high ambi…
View article: Prospects for Livestock Nutrition in the View of COVID-19
Prospects for Livestock Nutrition in the View of COVID-19 Open
Coronavirus Disease 2019 (COVID-19), caused by Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2), is a global pandemic. Remarkable negative impacts of the pandemic have already been observed in ecosystems, human civilization, fo…
View article: Effect of dietary electrolyte balance and arginine to lysine ratio on hematological, antioxidant and immunological traits in dual-purpose breeding hens under cyclic heat stress condition
Effect of dietary electrolyte balance and arginine to lysine ratio on hematological, antioxidant and immunological traits in dual-purpose breeding hens under cyclic heat stress condition Open
A total of 245 hens and 35 cocks (32 weeks age) were assigned to seven treatment groups (five replicates with seven hens and one cock) to investigate the effect of dietary electrolyte balance (DEB) and arginine to lysine ratio (Arg/Lys) on…
View article: Arginine: lysine ratio influences on performance, egg quality, haematology, biochemistry, antioxidant status and immunity of dual-purpose breeding hens exposed to cyclic heat stress
Arginine: lysine ratio influences on performance, egg quality, haematology, biochemistry, antioxidant status and immunity of dual-purpose breeding hens exposed to cyclic heat stress Open
The aim of this study was to investigate the effects of arginine/lysine ratio (Arg/Lys) on the productive and reproductive performance, egg quality, immune and physiological parameters of hens reared under cyclic heat stress condition (CHS…
View article: Impact of early feed restriction and continued supplementation with coated organic acid and essential oils on sustainability of laying performance, egg quality, fertility, hatchability, immunity status, and gut microbiota of Japanese quail hens
Impact of early feed restriction and continued supplementation with coated organic acid and essential oils on sustainability of laying performance, egg quality, fertility, hatchability, immunity status, and gut microbiota of Japanese quail hens Open
Three hundred and sixty, 42-day-old Japanese quail (JQ) hens were randomly divided into six experimental groups with 5 replicates/group. Each replicate consisted of 12 birds (8 females and 4 males). During the growing period, chickens were…
View article: Performance, blood and antioxidant status in dual-purpose laying hens supplemented with aqueous extract of Christ’s thorn jujube (Ziziphus spina-christi L.) leaves as phytogenic agent in subtropical conditions
Performance, blood and antioxidant status in dual-purpose laying hens supplemented with aqueous extract of Christ’s thorn jujube (Ziziphus spina-christi L.) leaves as phytogenic agent in subtropical conditions Open
Objective: The potential of aqueous extract of Christ’s thorn jujube (Ziziphus spina-christi) leaves (SLAE) to reduce the negative impacts of heat stress on production performance and physiological traits was investigated in dual-purpose l…
View article: Antioxidant Status, Lipid Metabolism, Egg Fatty Acids, and Nutritional Index of White-Egg Laying Hens Fed Flaxseed Cake
Antioxidant Status, Lipid Metabolism, Egg Fatty Acids, and Nutritional Index of White-Egg Laying Hens Fed Flaxseed Cake Open
Flaxseed cake contains high levels of phenolic compounds, which have numerous biological activities, as well as a considerable amount of omega-3 fatty acids, such as α-linolenic acid, which remains after oil extraction. In this study, we e…
View article: Erratum: Egg Quality, Sensory Attributes, and Protein Metabolites of Laying Hens Fed Whole Flaxseed, Fish Oil, and Different Sources of Trace Elements
Erratum: Egg Quality, Sensory Attributes, and Protein Metabolites of Laying Hens Fed Whole Flaxseed, Fish Oil, and Different Sources of Trace Elements Open
[This corrects the article DOI: 10.2141/jpsa.2024021.].
View article: Egg Quality, Sensory Attributes, and Protein Metabolites of Laying Hens Fed Whole Flaxseed, Fish Oil, and Different Sources of Trace Elements
Egg Quality, Sensory Attributes, and Protein Metabolites of Laying Hens Fed Whole Flaxseed, Fish Oil, and Different Sources of Trace Elements Open
This study evaluated the effects of whole flaxseed (WFS), fish oil (FO), and different sources of Se, Zn, and Fe (inorganic, organic, and nano-source) on egg production, quality, sensory attributes, and serum protein metabolites in laying …
View article: Effects of Spirulina platensis and/or Allium sativum on Antioxidant Status, Immune Response, Gut Morphology, and Intestinal Lactobacilli and Coliforms of Heat-Stressed Broiler Chicken
Effects of Spirulina platensis and/or Allium sativum on Antioxidant Status, Immune Response, Gut Morphology, and Intestinal Lactobacilli and Coliforms of Heat-Stressed Broiler Chicken Open
This study aims to evaluate the effectiveness of the dietary addition of Spirulina platensis (SP) and/or garlic powder (GP) on heat-stressed broiler chickens. For this purpose, 600 Ross-308 broiler chicks were allocated at 22 days of age i…
View article: Intermittent light program impacts on reproductive performance, health and welfare of breeding hens
Intermittent light program impacts on reproductive performance, health and welfare of breeding hens Open
The lighting regime significantly impacts poultry production, reproductive performance, health and welfare. This study aimed to test the effect of the intermittent light (IL) regime on reproductive organs and hormones, semen quality, and b…
View article: Alternative to antibiotic growth promoters: beneficial effects of Saccharomyces cerevisiae and/or Lactobacillus acidophilus supplementation on the growth performance and sustainability of broilers’ production
Alternative to antibiotic growth promoters: beneficial effects of Saccharomyces cerevisiae and/or Lactobacillus acidophilus supplementation on the growth performance and sustainability of broilers’ production Open
Although antibiotics growth promoters (AGPs), including zinc-bacitracin (ZnB), can threaten human health due to developing antimicrobial resistance, as well as drug residue in animal and poultry products, ZnB is still widely used, particul…
View article: Heat detoxification of Jatropha cucas meal and its effect on productive and reproductive performance of quail
Heat detoxification of Jatropha cucas meal and its effect on productive and reproductive performance of quail Open
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 determ…