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by
Hoda E. El-Gabry |
Total Records (
3 ) for
Hoda E. El-Gabry |
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S.M.M. Shalash
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M.N. Ali
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M.A.M. Sayed
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Hoda E. El-Gabry
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M. Shabaan
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An experiment was conducted with broiler chicks to study the possibility of improving the utilization of Dried Distillers Grains with Solubles (DDGS) in broiler diets. A total number of 150 day-old broiler chicks were randomly assigned to five groups received, diet containing 12% corn Dried Distillers Grains with Solubles (DDGS diet) without or with enzyme preparation (E), radish root extract (RRE, as source of peroxidase enzyme ) or E plus RRE, in addition to the control diet .The addition of RRE improved numerically Body Weight (BW) at 28 days and significantly at 42 days by 3.42 and 3.11%, respectively compared to birds fed DDGS diet alone. Enzyme preparation failed to improve performance for broiler fed DDGS diet. While using DDGS diet significantly decreased plasma antioxidants capacity by 56.11% compared to control birds, addition of RRE significantly increased it by 515% compared to the birds fed DDGS diet alone. There were insignificant differences between experimental treatments in plasma cholesterol, lipids or creatinine content. The addition of RRE increased plasma phosphorus by 65.93% compared to the birds fed DDGS diet alone while the later decreased it by 6.22% compared to control diet. The control birds recorded significantly higher values of plasma uric acid compared to other treatments. It was concluded that using RRE as a source of peroxidase enzyme is a suitable feed additive for improving the utilization of DDGS. |
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S.M.M. Shalash
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S. Abou El-Wafa
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M.A.M. Sayed
,
Hoda E. El-Gabry
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Nehad A. Ramadan
and
Manal S. Mohamed
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Three experiments were conducted to evaluate nutritive value of Distillers Dried Grains with Solubles (DDGS) in starter broiler diets using different levels (0, 6, 9 or 12%). Exp. I was design to determine the digestibility coefficients of nutrients for DDGS using 16 cockerels, 40 weeks old compared to a mixture of yellow corn and DDGS 1:1 or 100% DDGS. Feeding cockerels 100% DDGS reduced Crude Protein (CP) from 93.60-92.17%, Ether Extract (EE) from 82.37-75.52%, Crude Fiber (CF) from 27.30-23.47, NFE from 82.85-55.45%) and Organic Matter (OM) from 83.30-69.30%) compared to those fed 50% DDGS. Exp. II was designed to evaluate the nutritive value of DDGS protein using Total Protein Efficiency (TPE) technique. A total number of 80 unsexed one-day old Arbor Acers broiler chicks were distributed between 2 treatments of 40 chicks each in four replicates (10 chicks each) and fed commercial diet (22% CP and 3000 Kcal ME/Kg) for two weeks. On the 14th day, the chicks were fed experimental diets (18% CP) in which cereals (yellow corn and fine wheat bran) provided 6% of dietary CP, while the test material (DDGS) provided 12%, from 14 up to 28 days of age. Significant reduction took place in body weight gain, feed intake, protein intake and T.P.E. value for chicks fed diets containing DDGS compared with those fed diets containing soybean meal as a source of protein. Exp. III, was design to evaluate DDGS at different levels: 0, 6, 9 or 12% in starter broiler diets. A total number of 240 unsexed one-week old Arbor Acers broiler chicks were distributed into 4 treatments of 60 chicks each in six replicates (10 chicks each). Diets were formulated to contain 22% CP and 3070 Kcal ME/Kg at starter period (1-4wks of age). Performance and Relative Economic Efficiency (REE) of chicks fed diets with 6% DDGS approximately equaled those fed control diet (corn/soy). However, reduction in body weight and body weight gain. Took place in both 9 and 12% DDGS supplemental diets, being significant in the 12% diet. A noticeable reduction in REE values took place between treatments. The 6% DDGS level equal almost the control performance. The 9 and 12% DDGS treatments showed lower REE than both control and the 6% level. Inclusion of DDGS in the broiler diets had no effect on mortality rate. |
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S.M.M. Shalash
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S. Abou El-Wafa
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R.A. Hassan
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Nehad A. Ramadan
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Manal S. Mohamed
and
Hoda E. El-Gabry
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This experiment was conducted to evaluate the effect of different dietary levels (0, 5, 10, 15 or 20%) of Distillers Dried Grains with Solubles (DDGS). Each level was fed without or with two enzyme supplementation, (Kemzyme plus dry® supplemented at 250 gm/ton feed or Polytec Binder plus® supplemented at 500 gm/ton feed). A total number of 450 Inshas hens (30 wks old) and 45 cocks were distributed into 15 treatments of 30 hens, each in three replicates (10 hens and one cock, each). Diets were formulated to contain 16% CP and 2700 Kcal ME/Kg at laying period. Results show that no significant differences in digestibility coefficient values of Crude Protein (CP), Ether Extract (EE), Crude Fiber (CF), Nitrogen Free Extract (NFE), Body Weight Gain (BWG), feed intake and egg quality were observed by inclusion DDGS in laying hen diets. Also, results indicated that no significant effect on semen quality, fertility, hatchability and body weight of chicks in hatch by inclusion DDGS, enzyme supplementation or interaction between DDGS levels and enzyme supplementation in laying hen diets. Inclusion of 5% DDGS in laying diets significantly increased egg production %, egg number and egg mass, compared with the other levels. However, increasing DDGS to 15 or 20% in laying hen diets significantly increased yolk color and shell thickness and significantly decreased egg production %, egg number, egg weight and egg mass and gave the worst feed conversion compared with the other levels (0, 5 and 10%). Supplementation of Kemzyme plus dry® (enzyme 1) to diets containing DDGS had significantly higher percentage of digestibility coefficient value of ether extract and increased egg production %, egg number and egg mass than those fed the other treatments. In conclusion, the present results show that DDGS can be successfully fed at levels up to 10% in laying hen diet without adverse effect on laying performance. Also, enzyme supplementation could improve the utilization of DDGS to levels up to 20% of the diet. |
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