Publications by authors named "Mohamed E Abd El Hack"

Article Synopsis
  • The study assessed how different levels of a dietary herbal mixture (HM) affect the growth and health of New Zealand White rabbits from 5 to 13 weeks of age.
  • At 0.5% HM supplementation, rabbits showed significantly better body weight and weight gain compared to the control group and other supplement levels.
  • HM also improved blood lipid profiles by increasing HDL and decreasing LDL and triglycerides, while positively impacting gut microbiota by increasing beneficial bacteria and reducing harmful types.
View Article and Find Full Text PDF

This study evaluated the effects of Moringa oleifera leaf powder extract stabilized with zinc nanoparticles (ZnNPs-MLPE) as a natural growth promoter in broiler diets. Randomly assigned 264 one-day-old Ross 308 chicks to four different feeding treatments, with each group being subdivided into six replicates, each comprising 11 unsexed chicks. The control group was fed a basic diet without additives, while the experimental groups were supplemented with 1.

View Article and Find Full Text PDF

This study aimed to discover how Echinacea powder extract (EPE), an antioxidant, affects the growth rate, body composition, and blood parameters in broilers as an alternative to antibiotics. In a completely randomized design study, 4 experimental groups received 280 broiler chicks, 5-days-old (Cobb 500). Each group was distributed into 7 replicates, each containing ten unsexed chicks.

View Article and Find Full Text PDF

This study aimed to discover how using nano artichoke leaf extract Stabilized with zinc Nanoparticles (ZnO-Nano-ALPE) as an alternative to antibiotics and an antioxidant in broiler feed affected their growth, meat quality, and blood. In a completely randomized design experiment, 210 1-day-old chicks (Arbor Acres) were assigned to three trial groups. Each group was subdivided into seven replicates, each with ten unsexed chicks.

View Article and Find Full Text PDF

Microplastics (MPs) are small plastic particles less than five millimeters in size. Microplastic pollution poses a serious threat to ecosystems, affecting both biotic and abiotic components. Current techniques used to eliminate microplastics include recycling, landfilling, incineration, and biodegradation.

View Article and Find Full Text PDF

Corn, the primary ingredient in modern poultry feeds, contains high levels of ω-6 fatty acids but lacks sufficient ω-3 fatty acids, creating an imbalance. Maintaining a balance between ω-6 and ω-3 fatty acids in poultry diets is crucial due to their competition. This study aimed to evaluate the effects of incorporating different concentrations of an equal mix of soybean oil (SO) and flaxseed oil (FO) into quail diets on growth performance, carcass quality, and blood biochemistry.

View Article and Find Full Text PDF

The objective of the present study was to ascertain the influence of thyme leaf powder (TLP) on growth rate, carcass features, and blood indicators in broiler diets as a natural antioxidant and antibiotic substitute. A fully randomized design experiment divided 264-day-old broiler chicks (Ross 308) into 4 experimental groups. Six replicates of each group, each containing 11 unsexed chicks, were created.

View Article and Find Full Text PDF

This experiment was designed to explore how different types of probiotics affect the growth, carcass traits, and seasonal variations in growing New Zealand White rabbits (NZW). Two parallel experiments using the same strain of NZW during winter and summer, each alone from 5 to 13 weeks of age. Each experiment uses a total of 125 unsexed rabbits.

View Article and Find Full Text PDF
Article Synopsis
  • - This study assessed the effects of chitosan nanoparticles (CNP) on broilers' growth, digestion, immunity, and meat quality using 200 chicks divided into four groups, with one group receiving no CNP and the others getting varying amounts (0.2, 0.3, and 0.4 g/kg).
  • - Results showed that the 0.4 g CNP group had significantly better weight gain, feed efficiency, and nutrient digestibility, along with decreased cholesterol and bacterial load compared to the control group.
  • - The 0.4 g CNP group also exhibited improved meat quality, as indicated by enhanced water holding capacity and antioxidant capacity while lowering harmful substances, suggesting that this CNP
View Article and Find Full Text PDF

This experiment examined how adding mannan-oligosaccharides (MOS) to the diet affected fertility, hatching rates, egg production, carcass characteristics, cost-effectiveness, and immune function in laying hens. One hundred and twenty Mandarah chickens (30 hens and 3 roosters per group) were randomly chosen between 34 and 50 wk old and divided into four groups. The first group was the control group, which was given just the basal diet.

View Article and Find Full Text PDF
Article Synopsis
  • The increasing demand for animal products in developing countries is contributing to global warming, with livestock production responsible for 25% of emissions, prompting research into probiotics as a solution to enhance livestock efficiency.
  • In a study, adding 8 × 10 CFU g of Saccharomyces cerevisiae decreased methane emissions and improved nutrient factors, while 20 × 10 CFU g of Bacillus subtilis increased total gas production but did not impact pH.
  • The results suggest that combining these probiotics in specified doses can boost overall fermentation efficiency and mitigate methane emissions in sheep, providing a potential strategy for environmentally friendly livestock production.
View Article and Find Full Text PDF

This study explored the ability of formic acid (FA) to replace antibiotics in broiler chicken diets. It examined how FA affected the chickens' growth, carcass characteristics, blood chemistry, and gut bacteria. The experiment randomly assigned 300 one-day-old (Ross 308) broiler chicks to 5 groups, each divided into 6 replicates with 10 unsexed chicks.

View Article and Find Full Text PDF

This investigation aimed to evaluate the impact of immersion (IM) riboflavin treatment on the hatchability, production efficiency, and carcass characteristics of Japanese quail eggs. A total of 260 eggs of Japanese quail birds were used for hatching and were randomly divided into 4 treatments with 5 replicates (13 eggs/replicate) in a fully randomized design. Hatching eggs were immersed in riboflavin for 2 min before incubation.

View Article and Find Full Text PDF

This work aimed to investigate the effects of dietary frankincense oil and ginger on the growth efficiency of growing Japanese quail, including live body weight, body weight gain, feed intake, feed conversion ratio, carcass traits, and physical characteristics of the meat. In total, 150 unsexed Japanese quail chicks that were 7 d old were utilized in the experiment. The chicks were randomly divided into 5 groups.

View Article and Find Full Text PDF

Polyunsaturated fatty acids (PUFA), including n-6 and n-3 fatty acids, are essential for enhancing the performance and health of poultry. Avian species lack desaturase enzymes for endogenous synthesis of n-6 and n-3 fatty acids. This work aimed to determine the impacts of including soybean oil (SO) and linseed oil (LO) in quail diets on growth, lipid profile, hepatic and renal functions, immunity, and antioxidant status.

View Article and Find Full Text PDF

This investigation aimed to assess how Japanese quail hatchability, growth, and carcass traits were affected by quail egg weight, storage length, and their interactions. One thousand two hundred sixty eggs of the commercial Japanese quail were purchased, and the average age of the birds was 13 wk. Quail egg weights were divided into 3 groups using a 3 × 4 factorial design: small (< 11 g), medium (11-12 g), and large (> 12 g).

View Article and Find Full Text PDF

Moringa oleifera (MO), a cultivated species of the Moringa, is known for its high concentration of essential nutrients that promote growth. To assess its impact on rabbits' gut morphometric, behavioural, and physiological parameters, a study was conducted using sixty growing male white New Zealand rabbits at 40 days old. The rabbits were divided into four groups and supplemented with dried MO leaves at varying levels (0%, 0.

View Article and Find Full Text PDF
Article Synopsis
  • The study analyzed how various methods of administering synbiotics affected the intestinal health of male Mandarah chicks.
  • It found that both 0.25 mL and 0.50 mL synbiotics given through drinking water significantly increased beneficial lactic acid bacteria while reducing harmful E. coli levels.
  • Treated chicks showed better gut morphology, including improved villus height, leading to the conclusion that using synbiotics in drinking water can enhance the overall health of the birds.
View Article and Find Full Text PDF
Article Synopsis
  • The research investigates the effects of varying levels of Dunaliella salina (DS) on the growth and health of quail, assessing growth rates, carcass quality, and organ function.
  • Quail chicks were divided into four groups, receiving different amounts of DS in their diet, with those fed 0.5 g and 1 g of DS/kg showing the best growth performance and improved lipid profiles.
  • Results indicated that adding DS improved the immune response and overall health of the quail without negatively impacting feed intake or carcass characteristics.
View Article and Find Full Text PDF

To investigate the effect of age in male quail on testicular weight and histology, sexual libido and semen characteristics, a study was performed on 100 quails at 10, 16, 22, 28 and 34 weeks of age. The body and testicular weights were significantly (p < .05) higher at 16 and 22 than at 28 weeks of age.

View Article and Find Full Text PDF

The present investigation aimed to examine the impact of different dietary organic zinc nanoparticle (ZnNP) levels on gut bacteria, meat quality, growth performance, carcass traits, and blood indicators of broilers. A total of 180 unsexed one-wk broiler chicks (Cobb) were allotted to 3 experimental groups and received a basal diet supplemented with 0, 0.2, and 0.

View Article and Find Full Text PDF

Over the past years, the poultry industry has been assigned to greater production performance but has become highly sensitive to environmental changes. The average world temperature has recently risen and is predicted to continue rising. In open-sided houses, poultry species confront high outside temperatures, which cause heat stress (HS) problems.

View Article and Find Full Text PDF

The objectives of the present study were to investigate the potential effects of purified bee venom (BV) on various aspects of growth, carcass, antioxidant, intestinal bacterial count and economic considerations in rabbits. A total of 240 male rabbits, comprising two distinct breeds (V-Line and New Zealand White [NZW]), 5 weeks old, with an average live body weight (BW) of 680 ± 20 g, were randomly divided into six groups, each containing 30 rabbits. Each group had five replicates, with six rabbits in each replicate.

View Article and Find Full Text PDF