| Titles |
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English :
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Effect of feeding diets containing irradiated olive cake on growth performance of growing rabbits
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Arabic :
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تأثير التغذية علي علائق تحتوي علي تفل الزيتون المشعع على أداء الأرانب النامية
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| Abstract |
A total of eighty male New Zealand White (NZW) rabbits weaned at 5 weeks of age, were divided into 4 equal groups (20 rabbits! group) according to their initial live body weight (~ 740 g), to evaluate the possibility of feeding rabbits on diets containing irradiated (20 or 60 kGy) olive cake (OC) and their response on growth performance. nutrients digestibility as well as economical efficiency. The growing rabbits were fed the control diet (diet without olive cake), or the diet containing 15 % either non- or irradiated olive cake, at 20 or 60 kGy. Accordingly, a total of 4 experimental diets were used. The experimental diets were formulated to be iso-nitrogenous (~17% CP) and iso-caloric (~ 2500 Kcal DF/kg diet). At the end of the experimental period (16 weeks of age), a digestibility trial and coprophagy test were performed to determine the digestibility of feed nutrients and feeding values of the experimental diets. The experimental diets were fed to growing rabbits for 11 weeks post-weaning period. The results revealed that the OC contained 1783 Kcal digestible energy/Kg, 7.35% crude protein, 35.85% crude fiber. 7.48 % ether extract and 8.40% ash. Glucosinolates as hydrocyanic acid (HCN mg/g of sample) in raw and irradiated OC at 20 or 60 kGy of the present study were 5.5, 3.78 and 2.67mg/g, respectively, being reduced by 31.27% or 51.45% respectively compared to the raw OC. The lowest live body weight and body weight gain values, in general, were recorded for rabbits fed the control diet (without olive cake). While, the best values were for 15% dietary OC, either with or without gamma irradiation (20 or 60 kGy) instead of clover hay. Including 15% dietary OC irradiated at 20 kGy scored better body weight and body weight gain values, besides it has no adverse effect on feed intake; while improved feed conversion values insignificantly and performance index almost significantly. There were no adverse effects on nutrients digestibility of un-collared or collared rabbits due to the inclusion of 15% OC, either with or without gamma irradiation (20 or 60 kGy). However, digestibility coefficients of CF, EE and nutritive value as TDN % were improved by all dietary treatments. The results showed that 15% OC, with gamma irradiation at 20 kGy can be used in rabbit diet, to get better net revenue and economical efficiency. The above mentioned results suggested that irradiation processing of OC at 20 kGy can eliminate the harmful effect of its glucosinolates on rabbit performance and achieved better net revenue and economical efficiency.
Keywords: New Zealand White rabbits, olive cake, irradiation, growth performance, digestibility, economical efficiency.
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| Publication year |
2009
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| Pages |
461-474
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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 |
Egyptian Journal Nutrition and Feeds
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| ISSN |
1110-6360
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| Author(s) from ARC |
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| External authors (outside ARC) |
جمال علي الدين الصياد
جامعة بنها
محمد ضياء الدين فرج
المركز القومي لبحوث وتكنولوجيا الاشعاع-هيئة الطاقة الذرية
محمد محمد عبد اللا
جامعة بنها
حسين محمد صلاح مكاوي
المركز القومي لبحوث وتكنولوجيا الاشعاع-هيئة الطاقة الذرية
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| Agris Categories |
Animal feeding
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AGROVOC
TERMS |
Digestibility.
Economic analysis.
Irradiation.
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| Proposed Agrovoc |
growth performance;olive cake;New Zealand White rabbits;
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| Publication Type |
Journal
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