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Articles by A.A. Al Aqil
Total Records ( 4 ) for A.A. Al Aqil
  S.M. Hassan and A.A. Al Aqil
  Using distillers dried grains with solubles (DDGS) as a feed ingredient in poultry nutrition has lately been increased. This study was conducted to evaluate the effect of adding different dietary levels of DDGS on the productive performance of broiler chicks from 1 to 35 d of age. Two hundred forty one-d-old broiler chicks were randomly distributed among 3 treatment groups with eight replicates of 10 chicks each. Chicks were fed a broiler diet containing 0.0, 5.0, or 10.0% DDGS. Results obtained from the present study showed no significant differences in body weight, body weight gain, feed intake and mortality rate among dietary treatments from 1-35 d of age. Feed conversion ratio and performance index were significantly better for chicks fed diet containing 5.0% DDGS than those fed diet containing 0.0% DDGS from 8 to 14 d of age only, but were no differences between chicks fed 10.0% and those fed either 0.0 or 5.0% DDGS. These results indicated that adding 5.0% DDGS into broiler diets showed a beneficial effect on feed conversion ratio with the best performance index from 8-14 d of age. Therefore, results suggest that DDGS can be safely added into diet as an alternative source of protein and energy from 1 to 35 d of age up to 10.0% without negative effect on productive performance of broiler chicks.
  S.M. Hassan and A.A. Al Aqil
  To establish the optimum dietary calcium to available phosphorus ratio for the best productive performance and eggshell quality of layer hens, a total of 160 laying hens, 44-wk-old were used to study the effect of adding four different dietary ratios (13:1, 7.6:1, 5.17:1 and 3.87:1) of calcium to available phosphorus on the productive performance and eggshell quality of layer hens. Each treatment was replicated ten times with 4 hens each. Initial and final body weights, egg production, egg weight, egg mass, feed consumption, feed conversion ratio per egg mass, egg specific gravity, eggshell weight and eggshell thickness, eggshell percentage, eggshell weight per surface area Haugh unit and yolk colour were measured. The results obtained from the present study showed no significant differences among all the dietary calcium to available phosphorus ratios on body weight, egg production, egg weight, egg mass, feed consumption, feed conversion ratio per egg mass, egg specific gravity, eggshell thickness, eggshell percentage, eggshell weight per surface area, Haugh unit and yolk colour for the entire experimental period (from 44 to 52 wk of age) of layer hen hens. Based on the results obtained from the present study, it was possible to conclude that the greatest calcium to available phosphorus ratio 13:1 (the highest calcium level, 4.29 and 0.33% the lowest available phosphorus level) was sufficient to maintain the productive performance and eggshell quality at the lowest cost of white egg layer hen from 44 to 52 wk of age.
  S.M. Hassan and A.A. Al Aqil
  Adding distillers dried grains with solubles (DDGS) as a feed ingredient in poultry diets has lately been increased. This study was conducted to evaluate the effect of adding different dietary levels of DDGS on the productive performance of laying hens. Three hundred twenty with 30-week-old Hisex laying hens were randomly distributed among four dietary treatments with twenty replicates of four laying hens each. Laying hens were fed four iso-energetic and iso-nitrogenous layer diets containing 0.0, 5.0, 10.0 or 20.0% DDGS for 12-week trial period from 30 to 42 weeks of age. Results obtained from the present study showed that there were no significant effects of adding either 0.0, 5.0, 10.0 or 20.0% DDGS into laying hen diets on egg production, egg weight, egg mass, feed consumption, feed conversion ratio per egg mass (kg feed/kg egg/hen), egg specific gravity, Haugh unit and egg yolk color. However, laying hens fed a diet containing 20% DDGS exhibited significantly the highest body weight loss compared to all the other dietary treatments. Therefore, it can be concluded that DDGS can be safely added into diets as an alternative source of protein and energy up to 20% without negative effects on productive performance characteristics of Hisex laying hens from 30 to 42 weeks of age.
  S.M. Hassan and A.A. Al Aqil
  To study the effects of adding date pits meal supplemented with beta-mannanase into diets on the productive performance and eggshell quality parameters, a total of 324 Hisex layer hens were randomly divided into 81 cages. Nine iso-energetic and iso-nitrogenous experimental diets in a 3 x 3 factorial arrangement including three levels of date pits meal (0, 5 and 10%) supplemented with three levels (0 or 330, 660 g of beta-mannanase/ton feed). Each dietary treatment was fed to 9 cages (4 birds/cage) for 8 weeks trail period after production peak from 45 to 53 weeks of age. Results showed significant (p<0.05) differences among treatments in feed consumption, feed conversion ratio, egg mass, egg production, eggshell weight, eggshell weight percentage, eggshell thickness and eggshell weight per surface area. It can be concluded that date pits meal could be partly added into diets as alternative feedstuffs up to 10% with supplementation of 660 g beta-mannanase/ton feed supplementation individually without negative effects on productive performance and eggshell quality characteristics of Hisex layer hen from 45 to 53 weeks of age. Further research on the effects of adding different levels of date pits meal supplemented with different levels of beta-mannanase at different ages on productive performance and eggshell quality parameters for layer hens are required to attain the optimal results.
 
 
 
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