| Titles |
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English :
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Response of summer stressed growing rabbits to some dietary growth promoters
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| Abstract |
An experiment was carried out to investigate the response to some growth promoters as safe alternatives to antibiotics on some performance aspects of rabbits subjected to environmental. stress of summer season (29-33°C) and 48-63% relative humidity. Seventy, 6 weeks old -NZW rabbits were equally sexed and allotted to evaluate one of the following seven feed additives: 1 no supplement, 2: 0.5% acetic acid, 3: 0.5% lactic acid, 4: 0.5% a herb mixture of equal parts of sage + oregano + sweet basal, 5: 1.0% of the previous herb mixture, 6: 1.0 g GOS® (gluco- oligosaccharides; a prebiotic)/ kg diet, and 7: 1.0 g Bio-Mos® (mannan-oligosaccharides a prebiotic)/ kg diet. The growth trial lasted up to the 13th week of age. Results reveal that total weight gain (p<0.01), and feed conversion ratio (p<0.05) were improved, while a significant decreasing effect (p<0.05) in both plasma total lipids and cholesterol with supplements. under studied was detected. 0.5% acetic acid, or 1.0% herb mixture decreased (p<0.01) the abdominal fat content of the carcass. Histological study indicated that villi height and crypt depth (p<0.01) were increased with studied additives, pH of blood, cecum and ileum, besides cecal content of volatile fatty acids, all were not affected by supplements. Conclusively, it is advisable to fortify rabbit diets reared under elevated ambient temperatures with one of the suggested additives, especially, with the prebiotics GOS®, Bio-Mos® or the herb mixture at ,I supplementation level to improve growth and health of rabbits grown under high temperature conditions,
Keywords: rabbit, summer season, performance, organic acids, medicinal plants, and prebiotics
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| Publication year |
2007
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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 |
Animal Production Research Institute (APRI)
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| serial title |
Proceeding Of Animal Health, Animal Welfare and Biosecurity
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| Author(s) from ARC |
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| Agris Categories |
Animal feeding
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AGROVOC
TERMS |
Drug plants.
Heat stress.
Organic acids.
Performance testing.
Rabbits.
Seasons.
Summer.
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| Proposed Agrovoc |
prebiotics;growth promoter;
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| Publication Type |
Journal
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