Papers by Ahmed M . Abd El-Hady
Annals of Agricultural Sciences, 2017
The potential contribution of two phytogenic feed additives compared with vitamin E to act as gro... more The potential contribution of two phytogenic feed additives compared with vitamin E to act as growth promoters was investigated. A total of 150, five weeks, V-line rabbits were fed basal diet supplemented with 150 mg/kg vitamin E (VE), 150 or 300 mg/kg propolis (LP or HP), 150 or 300 mg/kg moringa roots (LM or HM) or not (Con, no additives) for five weeks. Both LM and HM increased (P < 0.05) percentage of lymphocytes, while decreased (P < 0.05) ratio of neutrophil to lymphocyte compared to the other groups. Concentration of plasma glucose was higher (P < 0.05) in the HP-group than in the control, but it recorded intermediate values in the other groups. Compared to control, all dietary supplements improved (P < 0.05) plasma total antioxidant capacity. Concentrations of plasma low density lipoprotein and malondialdehyde were decreased (P < 0.05) in VE, LP and HP-groups, but were intermediate in the LM and HM−groups. Live body weights of rabbits were higher (P < 0.05) in the VE, LP and HP-groups than in the Con-group, whereas were intermediate in the LM and HM−groups. The lowest feed conversion ratios were in the VE and LP-groups. All dietary supplementations did not affect most of the carcass traits, but decreased (P < 0.05) the abdominal fat percentage. The results indicated the potential of VE and LP for improving growth and antioxidant status of growing rabbits.
Egypt. Poult. Sci., 2021
This study aimed to evaluate the effect of different forms of Zinc oxide as bulk and nano particl... more This study aimed to evaluate the effect of different forms of Zinc oxide as bulk and nano particles supplemented diet on hematological profile, antioxidant status, liver and kidney functions of Alexandria chickens. A total of 150 females and 25 males of Alexandria chickens at an age of 32 weeks were randomly divided into five groups in each group 30 female and 5 male for 12 weeks. The first group served as control group. Birds of the 2 nd and 3 rd groups were fed basal diet containing 40 and 80 mg zinc oxide (Bulk shape, ZnO) per kg diet and the 4 th and 5 th groups were fed basal diet containing 40 and 80 mg zinc oxide (Nano shape, ZnO-NPs) per kg diet, respectively. The results indicated that Hb and MCHC were significantly increased with the dose of 40 mg/kg ZnO. Data obtained revealed that there is a significant effect of zinc oxide forms on antioxidant status. While, 80 mg/kg ZnO-NPs caused a significant increase on catalase (CAT), superoxide dismutase (SOD) and total antioxidant capacity (TAC), but malondialdehyde (MDA) concentration was the lowest with the dose of 80 mg/kg ZnO-NPs. Total protein and albumin were affected by zinc oxide forms, sex and the interaction between them, but globulin was not significantly affected. Also, zinc oxide forms supplementation had no significant effect on liver and kidney functions. Generally, it can be considered that zinc oxide nanoparticles (ZnO-NPs) at a dose of 80 mg/kg addition to Alexandria chickens' diet can enhance physiological and antioxidant statuses.
Agronomy, 2021
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
Animal, 2010
Exposure of growing rabbits to heat stress during summer adversely affects their performance lead... more Exposure of growing rabbits to heat stress during summer adversely affects their performance leading to major production losses. A total number of 48 rabbits, unsexed V-line weaned rabbits, were randomly divided into four experimental groups, temperature ranged from high at 328C to low at 238C. Animals of the 2nd, 3rd and 4th group were individually orally given 200, 400 or 800 mg royal jelly (RJ)/kg BW once a week, respectively, to evaluate RJ ability to reduce physiological strain resulted from heat stress. Weekly BW gain increased by 10.4, 11.8 and 10.8%, and feed conversion ratio was significantly improved by 20, 24 and 18% with RJ treatments. Serum total protein, albumin and globulin increased, whereas serum total lipids, cholesterol and triglycerides decreased with RJ treatments. Creatinine was reduced by 21, 30 and 18% and uric acid by 14, 25 and 18% compared with the heat stressed control with the three doses of RJ. Glucose level increased significantly to reach 116, 125, and 120% of heat stressed control. Calcium, phosphorus and alkaline phosphatase increased significantly with RJ treatments indicating the occurrence of active bone deposition. Thyroid hormone levels increased significantly to reach 108, 111, and 112% of heat stressed control rabbits with the three doses of RJ, counteracting the hypothyroid state resulted from heat stress. It can be concluded that RJ administration to heat stressed growing rabbits can reduce physiological strain resulted from heat stress.
International Journal of Poultry Science, 2009
Seventy two, 3 weeks old female quails were distributed among 2 treatments to study the effect of... more Seventy two, 3 weeks old female quails were distributed among 2 treatments to study the effect of estradiol administration, on their productive and reproductive performance. Birds of the first group were intramuscularly injected at 3 weeks of age daily with 100 µg E /bird/day for 14 consecutive days. Birds of the 2 second group served as control. Birds injected with E from 3-5 weeks of age had a significantly higher body 2 weight at sexual maturity and matured significantly earlier compared to control. Egg number, egg weight and egg mass had significantly increased due to E injection. Ovaries and oviducts relative weight, oviducts 2 length, magnum length were none significantly increased while, shell gland length increased significantly by 17% due to estradiol injection. Serum calcium increased significantly due to E injections. This was also 2 accompanied with significant increase in Tibia weight (22%) and calcium content (10%) in compare to the untreated females. Estradiol injections resulted in a significant increase in egg shell percent and calcium content. Data indicated a stimulated pancreatic activity, as plasma glucose decreased while liver glycogen increased due to the treatment. Plasma total lipids, cholesterol and triglycerides levels were increased by 25, 20 and 22%, respectively. Similar trend was observed with liver lipids content, which was reflected on yolk lipids content. There were no significant differences observed on egg quality due to estradiol treatment. Serum transaminases (GOT and GPT) activities increased with E treatment while T decreased. It can be 2 3 concluded that treating immature Japanese quails daily (for 2 weeks) with E can enhance their reproductive 2 and productive functions without affecting their physiological profile or their egg quality.
Egypt. Poult. Sci., 2009
Fourty, 40 weeks old Alexandria cockerels were distributed among 4 treatments to study the effect... more Fourty, 40 weeks old Alexandria cockerels were distributed among 4 treatments to study the effect of GnRH stimulant (Theriogon) administration, on their reproductive performance. Birds of the second, third and fourth group were fed with 0.25, 0.5 and 1.00 g Theriogon/ kg feed, respectively for 2 months. Birds of the first group served as untreated control. Theriogon had significantly increased testosterone. Birds treated with the 0.25 and 0.50 and 1.00 g Theriogon/ kg feed had significantly higher ejaculated volume as it increased by 84, 84 and 87 % respectively, compared to the untreated males. Birds treated with the 0.25 and 0.5 and 1.00 g Theriogon/ kg feed had significantly higher motility as it increased to reach 119, 127 and 124 % of control respectively. Theriogon treatments from 40 to 48 weeks of age had significantly increased sperm concentration in a dose dependent manner as it increased to reach 146, 161 and 189 % of control with the three doses of Theriogon respectively. Theriogon treatments significantly increased blood hematological parameters Plasma glucose increased significantly with the GnRH stimulant treatment. Blood cholesterol was not affected by Theriogon treatment whereas; total lipids were increased significantly to reach 114, 115, and 113% of control and total protein increased significantly to reach 107, 122 and 111 % of controls level with the three doses of Theriogon, respectively. Whereas, globulin levels increased significantly with the 0.50 g dose of Theriogon only to reach 140 % of control. Seminal plasma constitutes showed a reflection of the blood status. It can be concluded that the veterinary gonadotrophin stimulant was capable of improving 40 week old Alexandria cockerels reproductive status.
A total of 45 unsexed weaned Alexandria rabbits line (a paternal rabbit line), at four weeks of a... more A total of 45 unsexed weaned Alexandria rabbits line (a paternal rabbit line), at four weeks of age (with an average initial weight 513 gm) were randomly distributed into three groups (15 each). First group (G1) was fed the basal diet (control). The other groups were fed the control diet supplemented with 300 and 400 gm digestarom ® / ton feed. The experimental period extended for five weeks. The results showed that dietary supplementation with digestarom showed the highest live body weight, body weight gain, digestion coefficients, and caecal activity. Treatment with digestarom also improved meat composition, carcass, dressing, liver and caecum percentages. The improvements of feed conversion ratio and mortality rate with digestarom ® groups were also found. The experimental additives significantly increased hemoglobin, red blood cells count, serum phosphorus, insulin, T3 and growth hormones concentration. Blood constituents significantly differed between groups and serum total lip...
Egyptian Journal of Genetics and Cytology, 2018
Myostatin (MSTN) gene expressed mainly in muscles of animals and human. It acts as a negative reg... more Myostatin (MSTN) gene expressed mainly in muscles of animals and human. It acts as a negative regulator of skeletal muscle development that limits skeletal muscle mass. Several mutations have been identified in the MSTN gene which natu-rally occurred in this gene leading to in-crease in skeletal muscle mass conse-quently better growth performance for animal. It has been considered as a candi-date gene for meat selection programs in domestic animals. Therefore, this study aimed to use Polymerase Chain Reaction Single-Strand Conformation Polymor-phism (PCR-SSCP) method to explore genetic polymorphisms of the part of in-tron 2, the coding sequence of exon 3 and a part of the 3’ untranslated region of MSTN gene in rabbits. Also the study evaluated genetic polymorphism of the MSTN gene on slaughter traits and some blood constituents as plasma total protein, Albumin, Globulin, serum Ca and IP in addition to the effect of line and sex on the above traits was also studied in the present inv...
Agriculture and Food, 2014
The present study was conducted to a herbal feed additives (digestarom®) supplementation effects ... more The present study was conducted to a herbal feed additives (digestarom®) supplementation effects on Performance, physiological parameters and slaughter characteristics of growing rabbits. Forty-five, unsexed VLine weaned rabbits, at 4 weeks of age with an average initial weight (530 gm) were randomly divided to three groups (15 each). First group was fed the basal diet (control) and the other groups were fed the control diet supplemented with 300 and 400 gm digestarom/ ton feed. The experimental period extended for 5 weeks. Results showed that dietary supplementation with digestarom showed the highest live body weight, body weight gain, caecal activity, carcass weight, dressing and liver percentages. Weekly feed conversion ratio was improvement with the increasing digestarom levels. The experimental additives significantly increased hemoglobin and red blood cells count. Effect on protein metabolism revealed that digestarom treatments had not significantly increased serum total prote...
Egyptian Poultry Science Journal, 2009
... By AEA Elkomy,*; OAH El-ghalid; and AM Abd-El-Hady ... Moreover, Samar Elnagar, (2009) report... more ... By AEA Elkomy,*; OAH El-ghalid; and AM Abd-El-Hady ... Moreover, Samar Elnagar, (2009) reported that treating cockerels with a GnRH analogue (Receptal) increased testosterone concentration compared to the untreated birds. Ejaculated volume: ...
Livestock Science, 2013
This study was designed to determine the effects of supplementation of vitamin E or propolis to b... more This study was designed to determine the effects of supplementation of vitamin E or propolis to bucks' diets on semen quality, oxidative status and hemato-biochemical changes during summer season. Thirty adult male New Zealand white rabbits were randomly allocated into three equal groups, 10 bucks each. Bucks received a maintenance diet supplemented by vitamin E (150 mg/kg diet, E-group) or propolis (150 mg/kg diet, P-group) or not supplemented (control, C-group) for ten consecutive weeks. Semen and blood samples were collected to analyze semen quality traits and hemato-biochemical parameters, respectively. Ambient temperature and relative humidity were recorded daily and used to estimate the temperature humidity index (THI). Results indicated that bucks in the E-and P-groups had better libido (lower reaction time, P o0.05) and higher sperm concentration and viability than the control group (P o 0.01). These enhancements were parallel to an increase in blood plasma testosterone concentrations in the vitamin E and propolis-treated groups (P o 0.01). Additionally, concentrations of seminal plasma total protein and initial fructose were significantly increased in the semen of both treatedgroups. For blood components, either vitamin E or propolis supplementation enhanced hematopoiesis including the number of red blood cells, hematocrite value and hemoglobin concentration (P o 0.01). Also, concentrations of blood plasma glucose and high density lipoprotein (HDL) were increased, while those of blood plasma cholesterol and triglycerides were decreased (P o0.01) in both treated-groups. Supplementation with vitamin E or propolis enhanced (P o 0.01) oxidative status of the blood plasma, whereas propolis-treated bucks had the highest value of total antioxidant capacity followed by vitamin E treated-bucks. Also, malondialdehyde activity was lower (Po 0.05) in the propolis-treated bucks compared with the control, while bucks of the E-group were intermediate. In summary, inclusion of vitamin E or propolis in male rabbits' diets during the hot season could be used effectively to mitigate negative impacts of elevated temperature on semen quality, oxidative status and hemato-biochemical features.
Open Journal of Animal Sciences
This paper was conducted to monitor the effect of mixed essential oils (AROMIX ) as phytogenic e... more This paper was conducted to monitor the effect of mixed essential oils (AROMIX ) as phytogenic extract herbs administration in drinking water on growth performance, hematological, biochemical, immunological statuses and carcass traits of broiler chickens. A total number of 240 unsexed broiler chicks (Cobb-500) strain, were randomly divided to four equal groups, 60 chicks each at seven days of age. The first group drank tap water (control), the second, third and fourth group were drank the same water, adding 1 ml AROMIX per 5, 10 and 15 liter tap water, respectively for 5 week of age. It was cleared from the results that there was a significant improve in feed conversion ratio, red and white blood cell counts, total protein, albumin, globulin, calcium, inorganic phosphorus and a relative reduction in the liver enzymes but in the normal range. However, it was observed that mix essential oils have no significant impact on carcass organs. High levels of the vital parameters, low levels of hepatic enzymes showed that birds health was good and relative improvement in immune system. The relative improvement of the absorption of minerals such as calcium and inorganic phosphorus to the positive role of essential oils. Administration in drank water was occasion, a regular activity of hepatic enzymes which can evidence safety and hepato-protective nature of these oils. Therefore, it is cleared from the results that the addition of these extract herbs in drinking water enhances the health meat, performance and physiological status of broiler chicks, which helps to obtain healthy meat and suitable for human consumption.
Egyptian Journal of Rabbit Science, 2008
The study aimed to investigate effects of recombinant porcine somatotropin (rpST) on reproductive... more The study aimed to investigate effects of recombinant porcine somatotropin (rpST) on reproductive performance and some physiological parameters of two doe rabbit strains [Native cross strain Baladi and Spanish line V strain (V-Line)]. A total of thirty two females [16 Baladi and 16 Spanish (V-Line)] rabbits at 5 months of age were used in this study. Does of each strain were divided into four equal groups (4 females, each), 2 nd , 3 rd and 4 th groups were injected subcutaneously every week with 0.5 ml rpST solution to provide 20, 40 and 80 mg rpST/ kg body weight/ week, respectively, for three parturitions, and the 1 st group served as control. Somatotropin (rpST) hormone administration significantly increased total and alive litter size at birth, size at 21 days and at weaning, Litter weight at birth, at 7, 14 and 21 days at weaning as well as, litter weight gain at (0-28 days). Milk yields (g/ litter/ doe) from kindling up to weaning at 1 st , 7 th , 14 th , 21 st and 28 th days of age significantly increased with hormone treatment in a dose dependent manner. Overall, V-Line does' reproductive performance was significantly higher than that of Baladi does. Doe serum total proteins and globulin concentration at kindling significantly increased with the increasing of rpST dose. Plasma total lipids concentration showed significant increase at 21 days of gestation period only. Results showed that, plasma total cholesterol, triglyceride, glucose, thyroxin (T 4), prolactin, progesterone and insulin like growth factors-I (IGF-I) concentrations were significantly increased in a dose dependent manner with rpST treatment, while serum triiodothyroxin (T 3) hormone decreased. It was concluded that weekly injection of doe rabbits with rpST (mainly by 40 or 80 mg/ kg bwt) can improve reproductive characteristics without harmfully affecting their physiological status. Treating the native cross 'Baladi" does with rpST can make them reach and sometimes surpass the untreated V-Line does, thus this hormonal treatment can improve the native cross performance.
Uploads
Papers by Ahmed M . Abd El-Hady