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Reducing atmospheric ammonia in pen and improving productive and physiological performance of silver Montazah laying hens by using Yucca schidigera and Aluminum chloride
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Abstract: A total number of 320 Silver Montazah laying hens 30 wks old were randomly assigned to 4 equal groups with two replicates each of 40 hens. Group 1: Fed on a basal diet and kept on untreated litter (contro1- CO). Group 2: Fed on a basal diet supplemented with 0.2 g yucca/kg diet and kept on untreated litter (YU). Group3: Fed on a basal diet and kept on treated litter with 250 g aluminum chloride/m2 (AL). Group 4: Fed on a basal diet supplemented with 0.2 g Yucca / kg diet and kept on treated litter with 250 g aluminum chloride/ m2 ( YU-AL). The results indicated that, all experimental treatments caused a significant (p <0.05) reduction in atmospheric NH3 when compared with CO, except at 10th wk at the level of bird. All experimental treatments showed no significant effect on the overall mean of live body weight (BW). The overall mean of feed intake (FI) was numerically reduced while feed conversion (FC) was significantly improved, also egg number, egg weight and egg mass were significantly (P < 0.05) increased by all experimental treatments comparing with CO group. The highest egg shell thickness was exhibited by AL treatment, meanwhile the highest Haugh unit score was attained by YU-AL treatment. On the other hand, egg (shell, yolk and albumen weights) and yolk color were not significantly affected by any of the experimental treatments. The levels of plasma total protein, and uric acid were significantly (P <0.05) increased, while blood pH was significantly (P <0.05) decreased by all experimental treatments in comparison with CO group. Plasma urease activity and urea levels were significantly (P <0.05) decreased by YU and YU-AL treatments comparing to AL and CO treatments. All experimental treatments showed a significant (P < 0.05) increase in the relative weights of heart and lung with a significant (P < 0.05) decrease in percent of abdominal fat than those of CO group, while the liver relative weight was not affected.
It could be concluded that the lowest atmospheric ammonia and the best performance were exhibited by YU-AL treatment.
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| Publication year |
2009
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| Pages |
1628-1644
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| Availability location |
معهد بحوث الانتاج الحيوانى- شارع نادى الصيد- الدقى - الجيزة
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| Availability number |
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| Organization Name |
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| City |
طابا
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| serial title |
5th International Poultry Conference
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| Author(s) from ARC |
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| Agris Categories |
Animal physiology - Nutrition
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AGROVOC
TERMS |
Air pollution.
Aluminium.
Ammonia.
Chlorides.
Layer chickens.
Performance testing.
Production.
Yucca.
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| Publication Type |
Conference/Workshop
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