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The impact of using different levels of Miswak on reproductive performance and immunity system of Dokki4 laying hens
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Abstract: This investigation aimed to evaluate the Miswak (Salvadora persica) as natural feed additive on productive and reproductive performance of Dokki 4 laying hens. One hundred and twenty Dokki 4 laying .hens and 12 cocks (37wks of age) were weighed and randomly housed in individual cages and allotted for four dietary treatment groups. The 1st group was fed the basal diet without supplementation (control), while the 2nd, the 3rd and the 41h groups were fed the basal diet supplemented with Miswak , (Arak) at the levels of 0.50, 0.75 and 1.0 %, respectively. Diets and water were provided ad-libtum throughout the experimental period (37-49wks of age).
The results indicated that:
1) Final body weight, body weight gain, egg production, egg weight and egg mass for the layers fed basal diet supplemented with Miswak were significantly increased than those fed control diet. Feed intake was not influenced by treatments, whereas feed conversion ratios were significantly improved.
2) Digestibility coefficient values of crude protein and ether extract significantly improved for hens fed diet supplemented with Miswak at the levels of 0.75 and 1.0 % compared to those fed control diet.
3) Also, treatment diet supplemented with Miswak had significant effect on shell thickness, egg shape index (ESI), albumen and yolk percentages and Haugh unit. However, no effect on egg shell was found. Moreover, supplementation layer diets with Miswak at different levels significantly improved both fertility and total hatchability percentages of total eggs compared to control.
4) Live body weight, spleen, giblets percentage (GB%) and total edible parts (TEDP) were significantly (P<0.05) higher for the treatments received Miswak diets (0.75 and 1.0 %) than those fed on control and Miswak at 0.50% level.
5)Feeding at different levels lead to significant (P<0.05) increase of total plasma protein, albumen, globulin, hormones (T3 and T4) and total plasma antioxidants capacity values. While, plasma total lipids, cholesterol and plasma uric acid were significantly decreased (P<0.05) compared to the control group.
6) The immunity responsiveness represented in leukocytes counts and mainly on lymphocytes increased significantly with Miswak treatments.
7) Net revenue and relative economical efficiency values were maximized by feeding Miswak at the levels of 0.75 % followed by Miswak at the levels of 0.50 or 1%.
In conclusion: Supplementation basal layer diet with Miswak significantly , improved productive and reproductive performances of Dokki 4 laying hens diet and decreased plasma total cholesterol, total lipids and increased immunity. The best economical and relative economical efficiencies were recorded for the layers fed basal diet supplemented with Miswak at the levels of 0.75%.
Key Words: Laying hens, Miswak, blood parameters, egg quality.
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| Publication year |
2013
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| Pages |
865-888
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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 |
الاسكندرية
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| serial title |
Egyptian poultry Science Journal
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| ISSN |
1110-5623
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| Author(s) from ARC |
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| Agris Categories |
Animal feedingAnimal physiology - Nutrition
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AGROVOC
TERMS |
Cocks.
Feed additives.
Hens.
Layer chickens.
Production.
Reproductive performance.
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| Proposed Agrovoc |
egg quality;blood parameters;Miswak;natural feed additives;
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| Publication Type |
Journal
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