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Effects of using aromatic herbal extract and blended with organic acids on productive and physiological performance of poultry 2 - The growth during cold winter stress
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Abstract: A total of 200 three-week-old Bandarah (Egyptian strain) cockerels were assigned into five equal groups 40 birds each with two replicates in floor pens. The 1st group was fed a basal diet and used as a control, while the 2nd and 3th groups were fed basal diet supplemented 1 or 2 g/ kg feed of RepaXo (mixture of volatile oils), respectively. Also the 4th and 5th groups were fed basal diet supplemented with 1 or 2 g / kg feed of Avigro (mixture of volatile oils along with organic acids), respectively. All groups were reared under cold temperature daylight 17°C and night 10°C during winter months and housed in floor pens till the end of the experiment that lasted up to at 12 wks of age.
Results showed that: productive performance of Egyptian meat production birds (body weigh gain. mortality rate. feed consumption and feed conversion) and carcass quality (dressing %, breast% and giblets%;were improved (P<0.05) with the addition of aromatic herbal extract alone or its blend with organic acids to the diets under cold environmental conditions. Physiological improvements (P<0.05) in plasma Tri-iodothyronine (T3), plasma total protein as well as albumin and globulin, and blood indices (Hemoglohin and Hematocrit) were observed. However. plasma total cholesterol and plasma total lipids were reduced (P<0.05). Nevertheless, creatinine. AST and ALT were not affected by different levels of both additives. Revealing to the immunologicl performance. HI tiller of Newcastle disease virus was significantly (P<0.05) higher with addition of both additives at all levels. Besides the relative, weight of lymphoid organs (liver) and glands (thymus. thyroid and bursa of fabricus) were increased significantly due to feeding diet included both supplements. Furthermore, experimental treatments. improved (P<0.05). erythrocytic cells and leukocytes in terms of heterophil, lymphocytes and eosinophil. despise of reducing (P<0.05) Monocyte cells as compared with the control ones. Moreover the counts of harmful microorganisms such as E. coli were (P<0.05) decreased and Clostridium perfringenes were disappeared corresponding to experimental additives at both levels. This study suggested that aromatic herbal extract alone or its blend with organic acids could be advisable to use in diets of meat chicks to improve the productive, physiological performance and immune response under cold environmental temperature.
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| Publication year |
2010
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| Pages |
229-248
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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 feeding
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AGROVOC
TERMS |
Albumins.
Blood composition.
Carcasses.
Essential oils.
Feed consumption.
Feed conversion efficiency.
Globulins.
Mortality.
Organic acids.
Weight gain.
Winter.
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| Proposed Agrovoc |
RepaXo;Avigro;cold temperature;aromatic herbal extract;plasma total protein;
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| Publication Type |
Journal
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