Elwy Ashour

• Professor
• prof.Dr. at Zagazig University

This study evaluated the efficacy of dried fig fruit powder extract conjugated with selenium nanoparticles (Se-Nano-FFPE) as an alternative to antibiotics and a growth enhancer in broiler diets. A total of 264 one-day-old Ross 308 broiler chicks were randomly assigned to four groups, each consisting of six replicates of 11 chicks. The groups includ...

This study investigated the effects of garden cress seed powder (GCSP) as a natural growth promoter and antioxidant agent in broiler diets, focusing on growth performance, carcass characteristics, microbial load and blood traits. A total of 210 1‐day‐old Arbor Acres broiler chicks were assigned to 3 experimental groups in a completely randomized de...

The objectives of this investigation were to evaluate the influence of dietary supplementation with different levels of Bacillus toyonensis ATCC 55050 (BT), Bifidobacterium bifidum ATCC 29521 (BB), and a combination of half the dose of BT and BB on the productive performance, carcass characteristics, physiological parameters, and gut microbiota of...

The administration of bioactive short peptides through in ovo feeding can improve the overall health and performance of broiler chickens for the poultry industry. Additionally, bioactive peptides possess biological features that have the potential to be beneficial in preventing many metabolic illnesses; hence, the ingestion of these peptides holds...

This experiment examined the potential of olive leaf powder (OLP) as a natural growth enhancer in broiler feed and its influences on growth performance, carcass characteristics, blood parameters, and intestinal bacterial count. A total of 210 one-day-old Arbor Acres chicks were randomly allocated into three groups. The control group was given a bas...

This study evaluated the effects of garlic powder (GP) as a natural growth promoter in broiler diets, replacing traditional antibiotics. Four experimental groups of 264-day-old broiler chicks (Ross 308) were established in a fully randomized design experiment. Each group had six replicates, each with eleven unsexed chicks. The treatments were used...

This study aimed to evaluate the effects of Bay laurel leaf extract conjugated with zinc nanoparticles (Zn-Nano-BLLE) as a growth enhancer and antibiotic alternative in broiler diets on growth performance, carcass characteristics, and blood markers. In a completely randomized design, 264 one-day-old Ross 308 broiler chicks were divided into four ex...

Diabetes mellitus is a chronic disease that has become more prevalent worldwide because of lifestyle changes. It leads to serious complications, including increased atherosclerosis, protein glycosylation, endothelial dysfunction, and vascular denervation. These complications impair neovascularization and wound healing, resulting in delayed recovery...

The study investigates the effect of dietary herbal mixture (HM) levels on growing New Zealand White (NZW) rabbits’ performance, carcass characteristics, blood biochemicals, and microbiological characteristics from 5 to 13 weeks of age. In this study, 96 New Zealand White rabbits (male and female ratio 1:1) were used, and they were five weeks old....

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 c...

The purpose of this study was to evaluate the effects of thyme powder (TP), garlic powder (GP), and their combination as natural alternatives to antibiotics on broiler growth performance, blood indices, and carcass characteristics. A completely randomized design was used, with four experimental groups consisting of 264 one-day-old Ross 308 broiler...

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...

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. Th...

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...

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...

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 chic...

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...

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...

This study examined how broilers up to 38 days of age fared regarding growth efficiency and carcass characteristics concerning selenium nanoparticle activities (SeNPs). A total of 180 one-week-old broiler (Cobb 500) chicks without sex were randomly allocated into three groups, each with six replications of 10 chicks. The trial took 38 days to compl...

For the evaluation of the effects of various quantities of crude protein (CP) and metabolizable energy (ME) (kcal/kg diet) in Japanese quail lay chicken meals on performance, digestion coefficients, and nutritional value. An experiment was undertaken in the summer season; 216 eight-wk-old Japanese quail laying hens were allocated at random to 1 of...

The objective of the current study was to ascertain the effect of using ginger powder or frankincense oil at different levels on the production rate, biochemical properties of blood, and immune response of laying Japanese quail housed from 12 to 21 wk of age. Three hundred sexually mature quail (200 females and 100 males) were distributed among 5 g...

Simple Summary To find alternatives to common ingredients, possibly of local origin, is very important considering the most recent global crisis. Rice bran could be a valuable candidate for poultry diets, but its chemical–nutritional characteristics and the effects on living birds must be carefully evaluated to identify all the possible negative or...

Probiotics are live microorganisms that can improve the host’s health when given in sufficient doses. Due to growing consumer demand for poultry raised without antibiotics supplementation, the usage of probiotics has been rising gradually over time in poultry. This review aimed to summarize the impacts of probiotics on poultry’s nutrient utilizatio...

A simple crossbreeding experiment between Gabali (G) bucks and Hyplus (H) does was performed to estimate crossbreeding effects for post-weaning growth traits (body weight at 5 (BW5), 7 (BW7), 9 (BW9), 11 (BW11), and 13 (BW13) weeks of age and daily weight gains (DG) during (DG5-7), (DG7-9), (DG9-11), (DG11-13) and (DG5-13), weeks of age). Estimates...

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...

An experiment that included crude protein (CP) levels and metabolisable energy (ME) energy (Kcal/kg diet) in meat-type Japanese quail chicks was conducted to evaluate their impacts on performance, carcase traits, digestibility coefficients and nutritional value during the growing period. A total of 540 one-week-old (16.0 ± 0.60 g) Japanese quail ch...

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 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...

Natural antioxidants play an important role in maintaining and improving poultry’s well-being, survival and productive and reproductive performance. Pyocyanin, a secondary blue redox-active metabolite, is one of these natural antioxidants that exert several biological activities to improve birds’ performance. This study estimated the effect of diet...

The current study aimed to discuss the impact of total sulfur amino acids (TSAA) %, photoperiod, and their interaction on growth performance, carcass and blood indices of broiler chicks. A total of 300 unsexed IR broiler chicks one-week old were used in a factorial arrangement (2×3), including two photoperiod systems (22 L: 2 D and 16 L: 8 D) and t...

This research aimed to determine the impact of in ovo resveratrol (RV) (Trans.3, 4, 5-trihydroxystilbene) injection on performance, carcass weights, and blood constituents in Cobb chicks. A total of 300 fertile broiler breeder eggs were divided into five treatments as 60 eggs in each group, with 6 replicates (10 eggs each). The groups were as follo...

This study investigated two kinds of probiotic bacteria (Bacillus toyonensis, B1 and Bifidobacterium bifidum, B2) on laying Japanese quail’s performance, egg quality, fertility and hatchability, blood biochemical characteristics and microbiological parameters. A total of 270 mature quails (180 females and 90 males) were distributed into ten groups...

Quail

Simple Summary The present study aimed to investigate the beneficial effects of zinc nanoparticles (ZnNPs) and curcumin nanoparticles (CurNPs) as well as Bacillus licheniformis (Bl) supplementation on broiler growth, chemical blood indices, and cecal microbes. The results showed considerable antimicrobial activity against pathogenic bacteria and fu...

This study aimed to determine the impact of in ovo Astragalus kahericus polysaccharide (AKP) injections on performance, carcass weights, and blood constituents in Cobb chicks. Un-sexed 1 day broiler chicks (250) were divided into five treatment groups with five replicates of 10 chicks per group. The groups were as follows: (1) negative control (wit...

The objective of the present study was to determine the effect of feed restriction systems, herbal mixture and their interactions on growth performance, carcass traits, and microbial aspects of growing New Zealand White (NZW) rabbit kept from 5 to 13 weeks of age. A 3 × 4 factorial arrangement was performed, including three feed restriction systems...

The present study investigated the effect of different dietary levels of calcium (Ca) and non-phytate phosphorus (P) on the growth performance, carcass characteristics, and blood components of growing geese. A total of 120, 4-week-old Egyptian goslings with similar body weights were randomly distributed to four groups in a 2 × 2 factorial arrangeme...

This experiment investigated the role of graded dietary levels of two probiotic strains (Bacillus toyonensis; BT and Bifidobacterium bifidum; BB) on the growth rate, carcass traits, physiological and histological aspects of growing Japanese quail. One thousand and three hundred sixty one-day-old un-sexed Japanese quail chicks were distributed rando...

The present investigation aimed to explore the impact of dietary graded levels of two types of probiotic bacteria (BT and BB) on growth, carcass traits, meat quality, and bacteriology of growing Japanese quail reared under cage system. One thousand and three hundred sixty Japanese quail day-old chicks randomly divided into ten groups (eight replica...

The present study was conducted to investigate the impacts of dietary supplementation of graded levels of herbal mixture powder (HMP) on growth performance, carcass traits, blood indices and meat quality of broilers. The herbal mixture consisted of (300 g [Capsicum annuum] Hot red pepper + 300 g Thymus vulgaris + 300 g Salvia rosmarinus + 150 g Pim...

The background to determine the standard macro minerals requirement for geese is very important for growth, production and health. Until now, there are no clear standard mineral requirements for the local Egyptian geese. Consequently, the present experiment was aimed at estimating the influence of different dietary calcium (Ca) and phosphorus (P) c...

This work investigated the effect of dietary green coffee powder (GCP) on the growth, body characteristics, antioxidant status, serum metabolites, and meat quality of 308 Ross broiler chickens. A total of 180 non-sexed seven-day old chicks were randomly distributed into three experimental groups. The untreated group received a basal diet (control),...

The present study aimed to investigate the effect of dietary pomegranate peel powder (PPP) and probiotic bacteria (PB) on the growth rate, carcass traits, blood serum metabolites, and meat quality of Ross broiler chickens during 1-5 weeks of age. A total of 480 unsexed Ross broiler chicks 7-days old with the beginning bodyweight of 110.58 ± 0.17 g...

This research aimed to investigate the effect of varying dietary crude protein (CP) and metabolizable energy (ME) quantity on growth, carcass characteristics, biochemical blood parameters and molecular aspects of growing geese. Overall, a total of 180 Egyptian goslings were used in a 2 × 3 factorial design. Two levels of CP (18% and 16%) and three...

Insects could be a potential replacement of protein-rich ingredients in poultry diets. Among these insects, black soldier fly (BSF), Hermetia illucens, has a high content of protein and fat, which reinforces the potential of using it in poultry feed formulation and makes it one of the most promising insect species for commercial production. Protein...

The present investigation aimed to explore the impact of dietary graded levels of two types of probiotic bacteria (BT and BB) on growth, carcass traits, meat quality, and bacteriology of growing Japanese quail reared under cage system. One thousand and three hundred sixty Japanese quail day-old chicks randomly divided into ten groups (eight replica...

The present study investigated the impacts of dried okra fruit powder (DOFP), used as a natural feed supplement, on growth, carcass, blood, and meat quality parameters of broilers. A total of 240 unsexed, one-week-old chicks were randomly allotted to four equal groups with six replicates in each group (i.e., 10 birds/ replicate). The dietary treatm...

The present study was performed to investigate the effect of dietary levels of protein, total sulfur amino acids (TSAA), methionine and cystine (M + C) and their interaction on the performance, carcass characteristics, blood components and meat quality of Egyptian geese. A total number of 144 geese at twelve weeks of age were randomly divided into...

The present study aimed to evaluate the effect of dietary Moringa oleifera (M. oleifera) leaves and/or seed powder on laying Japanese quail performance in terms of egg production, egg quality, blood serum characteristics, and reproduction. In total, 168 Japanese quails (120 hens and 48 males) at eight weeks of age in laying period were randomly dis...

Simple Summary The present investigation aimed to examine the impacts of different housing systems on growth performance traits, carcass characteristics, meat quality criteria, immunity, and oxidative stress of meat-type ducks. The study concluded that housing Pekin ducks in a house with a yard and a swimming pool positively affected growth perform...

The current research aimed to estimate the effect of dietary supplementation with glycinin isolated from soybeans on the growth performance, carcass traits, and selected blood metabolites of broiler chicks. A total of 200 1-wk-old broiler chicks were administered diets without glycinin (control treatment) or diets supplemented with 3 concentrations...

In this study, we investigated the response of broiler chickens to dietary whey protein concentrate (WPC) as a prebiotic supplement (0, 0.15, 0.20, and 0.25%) on performance, carcass criteria, blood metabolites, oxidative status of meat and liver, and meat quality traits. A total of 200, one-wk-old, unsexed chicks were randomly allotted to 4 treatm...

The current investigation aimed to evaluate the effect of dietary inclusion of dried brewers' grains (DBG) on growth performance, carcass traits, meat quality, nutrient digestibility, blood biochemical constituents and antioxidant indices of broiler chickens. A total of 300 unsexed one-week-old Hubbard chicks were randomly allotted to five treatmen...

An experiment was done using 160 Hi-sex Brown laying hens to investigate the effect of different levels of dietary faba bean (FB) with or without enzyme cocktail supplements on productive performance, egg quality, and blood metabolites. The experimental diets composed of 5 levels of FB at 0 (control), 25, 50, 75, or 100% instead of soybean meal and...

Dried Brewers grains (DBG), a brewery by-product that, may offer a suitable cheap replacer for traditional feedstuffs (e.g., corn and soybean meal). A variety of essential nutrients are present in BDG which are required in feed formulation for poultry. It is composed of around 20% crude proteins, 6% ether extract, 15% crude fiber and 4% ash. Beside...

The present study aimed to investigate the influence of feed form and the level of dietary crude protein (CP) on the growth performance and carcass traits of growing geese. A total of 180 Egyptian geese (1 wk old) were randomly divided into 9 groups (20 chicks per group). Each group was subdivided into five replicates, with 4 birds per replicate. A...

The present study aimed to investigate the effects of dietary supplementation with powdered peanut skin (PS) as natural antioxidant and growth promoter on growth performance, carcass characteristics, serum metabolites and meat quality of Cobb broiler chickens. A total of 240 unsexed Cobb 500 1-week-old broiler chicks were randomly assigned to four...

One thousand, two hundreds and sixty eggs of Japanese quail (Coturnix coturnix Japonica) were set into the incubator maintaining 12 treatment groups in a factorial design experiment (3 × 4) including three categories of incubated quail weight eggs (lower than 11 g., light weight (L), 11-12 g., medium weight (M) and above 12 g., heavy (H)), and four...

One thousand, two hundreds and sixty eggs of Japanese quail (Coturnix coturnix Japonica) were set into the incubator maintaining 12 treatment groups in a factorial design experiment (3 × 4) including three categories of incubated quail weight eggs (lower than 11 g., light weight (L), 11-12 g., medium weight (M) and above 12 g., heavy (H)), and four...

The present study aimed to investigate the effect of the dietary levels of protein, methionine (Met), as well as probiotic on productive performance, feed utilization, and environmental pollution by N in Lohmann Brown laying hens. A total number of 160 Lohmann Brown laying hens at 20 weeks of age were randomly divided into 8 treatment groups using...

An experiment that included some inclusions of corn distillers dried grains with solubles (DDGS) with or without supplementation of probiotic bacteria to Hi-sex Brown laying hen diets was conducted to evaluate the impacts on performance, egg quality, blood metabolites and nitrogen and phosphorus excretion in the manure. A total of 216 twenty-two-we...

An experiment that included some inclusions of corn distillers dried grains with solubles (DDGS) with or without supplementation of probiotic bacteria to Hi-sex Brown laying hen diets was conducted to evaluate the impacts on performance, egg quality, blood metabolites and nitrogen and phosphorus excretion in the manure. A total of 216 twenty-two-we...

The present study was performed to investigate the effect of partially replacing of corn by broken rice (BR) and sugar beet pulp (SBP) in the diet on growth performance and carcass traits of growing Japanese quail. A total number of 324 unsexed one week old Japanese quail chicks fed on diets replacing 0, 3, 6, 9, 12 and 15 % of corn by BR and SBP m...

This study evaluated the effect of replacing maize with broken rice (0, 10, 20, 30, 40 and 50 %) on growth performance, feed utilization and carcass traits of growing Japanese quails (1-5 weeks of age). A total of 324 quails (1 week old) were used in a complete randomized design experiment with six treatment groups. Each group was subdivided into t...

The present study was performed to investigate the effect of dietary levels of protein, energy and Lys on growth performance and carcass traits of growing Japanese quails during 1-5 weeks of age. A factorial design 3×2×2 arrangement was performed including three levels of crud protein (CP; 22, 23.5 and 25%), two levels of metabolizable energy (ME;...

This study was performed to investigate the effects of dietary supplementation with garlic and turmeric powder as growth promoter agents on performance, carcass traits, serum biochemistry, and antioxidant enzyme activities of growing rabbits. A total of 112, New Zealand White rabbits (NZW) at 5 weeks of age were randomly assigned to seven treatment...

A total of 160, Cobb 500 broiler chicks at 1 week of age were randomly assigned to four treatments each of four replicates. The dietary treatments consisted of the basal diet as control, dried whey (DW) groups receiving 1.0, 1.5 and 2.0 g/kg DW added to the basal diet. Body weights of chicks were measured at 1, 3 and 6 wks of age, feed intake was m...