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Articles by Magdy M. Mashaly
Total Records ( 2 ) for Magdy M. Mashaly
  Afaf Y. Al-Nasser , Abdulameer E. Al-Saffar , Faten K. Abdullah , Mariam E. Al-Bahouh , Gehan Ragheb and Magdy M. Mashaly
  Since eggs are an important part of the human diet and people have strong health awareness, it is beneficiary to produce eggs that are considered healthier products such as omega-3 enriched eggs. Omega-3-fatty acids have been shown to improve the human health in many aspects. Lowering circulating levels of cholesterol and lowering blood pressure are just some of their effects. It has been shown that feeding laying hens with flaxseeds leads to an increase levels of omega-3-fatty acids in the eggs and change the Omega-6 to Omega-3 ratio to an appropriate one. However, studies on the effects of feeding flaxseed to laying hens on both increase levels of omega-3 fatty acids and production performance are limited. Therefore, the purpose of the current study was to study the effects of adding flaxseed in the diet of laying hens on both producing omega-3 enriched eggs and on the production performance. Twenty four wk old Lohmann Selected Line (LSL) laying hens were used in the current study. The hens were divided randomly into four groups, the first received a diet with no flaxseed added and served as a control, the second, third and fourth group received 5.0%, 7.5% and 10% of flaxseed in the diet, respectively. The treatments continued for 32 wks. Egg production and feed consumption were recorded and feed efficiency was calculated. In addition, eggs from the different groups were collected at four, eight and 32 wks following treatment and levels of omega-3 and omega-6 fatty acids were measured and the ratio between the two was calculated. At eight wks following treatment, it was found that using either 7.5 or 10% flaxseed in the diet significantly (p<0.05) increased levels of omega-3 fatty acids in the eggs compared to the control. Levels were 267, 232 and 64 mg/egg for the 10%, 7.5% and control group, respectively. In addition, ratio of omega-6 to omega-3 was 2.33:1, 2.98:1 and 10.05: 1, for the same groups, respectively. Furthermore, adding flaxseed in the diet did not adversely affect egg production, egg weight, or feed efficiency. It can be concluded that using flaxseed in the diet of laying hens can result in producing omega-3 enriched eggs and reducing the omega-6: omega-3 ratio without any adverse effects on production performance.
  Mariam E. Al-Bahouh , Afaf Y. Al-Nasser , Faten K. Abdullah , Gehan Ragheb and Magdy M. Mashaly
  In today's broiler industry, different housing systems are used in broiler production. However, the most common one is raising broilers on the floor. Raising broilers in the cages is another type of broiler housing system, but yet it is not commonly used. Raising broilers in cage system has many advantages when compared to raising broilers on the floor. The first obvious advantage is the better utilization of space available and that is important especially when the lands are expensive. In addition, using cage to raise broilers provide better hygienic condition that could lead to improving the health and quality of broilers. However, it is not known whether or not different broiler breeds will behave similarly when are raised in cage versus floor. Therefore, the current study was conducted to compare the production performance as well as %carcass of broilers raised in the cage system with broilers raised on the floor. In addition the %fat and %protein of meat from broilers raised under the two housing systems were measured. Three broiler breeds were used in three separate experiments. These breeds were Indian River, Cobb500 and Ross. Data on body weight, feed consumption were measured at 1, 3 and 5 weeks of age. Feed efficiency, %mortality, %carcass were calculated. In addition the %protein and %fat of breasts and legs of different breeds under the two housing systems were measured. Our results indicate that raising broilers in cages could provide better production efficiency than raising broilers on the floor. Furthermore, our results show that %protein is higher in the breast than in leg meat, however, %fat was higher in the leg than in the breast meat. In conclusion, our experiments emphasis the importance and significancy of utilizing cages to raise broiler chicks.
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