Osama Elghalid | Alexandria University ,Egypt (original) (raw)

Papers by Osama Elghalid

Egyptian Poultry Science Journal, 2021

This study aimed to evaluate the impact of different levels of galangal (Alpinia galanga) supplem... more This study aimed to evaluate the impact of different levels of galangal (Alpinia galanga) supplemented diet on productive performance, lipid profile, biomarkers of antioxidant status, carcass traits, economical efficiency, and production index of broiler chicks. A total of 180 unsexed broiler chicks (Arbor Acres) at an age of seven-day-old chicks were randomly divided into 5 treatments (36 chicks each) divided into 6 replicates (each replicate of 6 chicks). The first group fed the basal diet (control); while the 2 nd , 3 rd , 4 th , and 5 th groups were fed the basal diet supplemented with 0.25, 0.50, 0.75, and 1.00 % galangal, respectively. Data revealed that treatments groups with supplemented different levels of galangal had greater productive performance, economical efficiency, and production index compared to the control group. All treatments with different levels of galangal were decreased total lipids, triglycerides, cholesterol, low-density lipoprotein (LDL), malondialdehyde (MAD), and increased glucose, thyroid hormones (T3-T4), high-density lipoprotein (HDL), total antioxidant capacity (TAC), glutathione peroxidase (GSH-Px), and superoxide dismutase (SOD) compared to the control group (within normal range). In conclusion, it can be considered that galangal supplementation at 0.25% of diet improved the growth performance and physiological status of broiler without any adverse effects on blood parameters of broiler chicks.

Asian Journal of Poultry Science, 2015

This study was carried out to assess the effect of Boron supplementation on male rabbit's reprodu... more This study was carried out to assess the effect of Boron supplementation on male rabbit's reproductive performance. A total of 20 V. Line (V.L) adult rabbit bucks were divided into four equal experimental groups (5 bucks for each). Groups 2, 3 and 4 were fed rations supplemented with 17.5, 35 and 70 mg boron/kg feed in the form of boric acid (100, 200 and 400 mg boric acid, respectively) over 8 weeks. The first group was served as a control group. Results obtained by the Boron groups revealed that adding Boron to rabbit bucks rations at any tested doses resulted in a non-significant increase in the ejaculate volume of male rabbit by approximately 25% above the control group. Adding Boron at any dose exhibited a significant increase (p#0.01) in sperm concentration, total sperm output, sperm motility, live sperm and normal sperm compared to the control group and the high Boron dose had the highest effect on previous measurements compared to the low and medium Boron doses. Opposite trend was shown in the reaction time (libido) and seminal plasma fructose concentration which showed a significant decrease in these parameters in the Boron treated groups compared to the control. Plasma total protein, glucose, total lipids and triglycerides concentration were boosted in the Boron groups compared to the control (p#0.01) for glucose and triglycerides measurements. On the contrary, treated male rabbits with Boron at any tested doses resulted in a significant reduction in plasma cholesterol concentration. Blood and seminal plasma AST and ALT enzymes activities showed a tendency to decrease by Boron treatments compared to the control group. Treating bucks by different Boron doses resulted in a significant increase (p#0.01) in Total Antioxidant Capacity (TAC) to reach 110, 128 and 163% of blood plasma and 114, 121 and 122% of seminal plasma compared to the control value. On the other side, adding Boron to bucks rations did not affect the activity of seminal plasma alkaline phosphatase enzyme. Blood testosterone hormone had a tendency to increase in the Boron groups compared to the control group but this increase was not significant. It could be concluded that feeding rabbit bucks on rations containing the studied Boron doses results in a significant improvement in semen quality characteristics and had a positive effect on their physiological status.

Animal science journal = Nihon chikusan Gakkaiho, 2020

The current experiment was carried out to evaluate the effect of different dietary chromium suppl... more The current experiment was carried out to evaluate the effect of different dietary chromium supplementation sources, chromium oxide (Cr2 O3 ), chromium methionine (Cr-Met), or chromium yeast (Cr-yeast), at different levels each (500 or 1,000 ppb) on growth performance, physiological traits, and carcass characteristics of broiler chicks. A total of 490 seven-day-old Arbor Acres chicks were randomly distributed into 7 experimental groups each in 10 replicates of 7 birds each. The groups were control, 500 ppb Cr2 O3 , 1,000 ppb Cr2 O3 , 500 ppb Cr-Met, 1,000 ppb Cr-Met, 500 ppb Cr-yeast, and 1,000 ppb Cr-yeast. The results showed significant superiority of the organic chromium sources (Cr-Met or Cr-yeast) concerning body weight and weight gain, the group supplemented with 1,000 ppb Cr-yeast consumed the lowest feed (3,185 g) and had the best feed conversion ratio (1.60) compared to the control (1.73). The chromium treatments recorded significantly better protein and lipid profile, anti...

Egyptian Poultry Science Journal

The present study aimed to investigate the effect of dried red beetroots and commercial betaine o... more The present study aimed to investigate the effect of dried red beetroots and commercial betaine on blood hematology, lipid profile and immunity status of growing rabbits. A total of 150, unsexed Alexandria line weaned rabbits, at 4 weeks of age were randomly divided into five groups (30 rabbits each). Rabbits in the first group were fed the control diet, while those in groups 2 nd , 3 rd , 4 th and 5 th were fed on 0.5 %, 1.0 % of dried red beet, 0.1% and 0.2% of commercial betaine, respectively for 5 weeks. Data revealed that treatment groups with dried red beetroots and commercial betaine recorded the higher live body weight at 9 weeks of age, body weight gain, feed consumption from 4 to 9 weeks and improved feed conversion and mortality rate compared to control group. Red blood cells, hemoglobin and packed cell volume was increased significantly compared to control group. All treatments and increasing red beetroots and betaine levels resulted in high in white blood cells, lymphocyte, total protein, globulin and high density lipoprotein levels compared to control, but, total lipids, cholesterol, triglyceride and low density lipoprotein values decreased significantly. Liver enzymes and kidney function levels were improved in treatment groups compared to the control group. With dried red beetroots physiological status of growing rabbits was showed an enhanced compared to commercial betaine. The results of economic efficiency indicated that the Alexandria growing rabbit fed 0.5% dried red beetroots has highest relative economic efficiency compared to control, 3 nd , 4 rd and 5 th (108.10, 103.47, 104.72 and 98.79%, respectively). These findings revealed that 0.5 kg/ 100 kg diet may exert beneficial effects on productive performance, hematology parameters, lipid profile and economic efficiency properties of growing rabbits.

Journal of Animal Physiology and Animal Nutrition