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Novel methods of detoxification of aflatoxin B1 in contaminated local laying hen diets [electronic resouce].

By:

Ali, M. N

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Language: English Summary language: Arabic Description: p.911-940Other title:

طرق جديدة لازالة الافلاتوكسين ب1 في علائق الدجاج البياض المحلي [Added title page title]

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Egyptian poultry science journal, 2006 v. 26 (III) [electronic resouce].

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In: Egyptian Poultry Science Journal 2006.v.26(III)Summary: A total number of 224 hens plus 49 cocks from El-Salam strain of 30 weeks old were divided into 7 groups with 4 replicates each (8 hens + 1 cock). The remaining 21 cocks were also divided into 7 groups of 3 cocks each and housed separately for semen evaluation . Hens of treatment 1 received a basal layer diet (as a control diet). Hens of treatment 2 received the basal diet plus 1000 ppb aflatoxin B1 (AF-diet). Hens of treatments 3,4,5,6 and 7 were received the AF-diet supplemented with 0.5% hydrated sodium calcium alumino silicate (HSCAS), 0.5% HSCAS+1% radish extract (RE), 1% RE+ 1% sodium sulphate (SS), 0.5% HSCAS+1% SS or 2.5%mixture of HRS ( 0.5% HSCAS +1%RE+1%SS), respectively. The experimental groups were fed on the experimental diets from 30 to 34 weeks ( treatment period), then they were fed the control diet from 34 to 38 weeks ( recovery period ).Main results obtained can be summarized as follow : 1- Hens fed AF-diet without additives recorded the lowest values of body weight gain, egg number, egg weight, egg mass, feed intake and the worst feed conversion. Also, AF-diet alter egg quality parameters. 2- Relative weight of liver, spleen, and heart significantly increased while ovarian relative weight decreased in groups fed AF-diet. 3- Liver lipid and serum alkaline phosphatase significantly increased while yolk cholesterol and serum calcium, phosphorus and triglycrides decreased in hens fed AF-diet. Also, AF-diet decreased semen volume, concentration and mass motility while sperm abnormality and percentage of dead sperms increased. 4- AF-diet decreased fertility, hatchability of eggs, chick weight at hatch and increasing chick abnormality. Also, hens fed AF-diet recorded the highest value of AFB1 residue in egg yolk. 5- All feed additive used in this study decreased the negative effects of toxicity due to aflatoxicosis for all studied criteria. The combination of HSCAS and SS was the most successful additive in this study, compared to the others.

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A total number of 224 hens plus 49 cocks from El-Salam strain of 30 weeks old were divided into 7 groups with 4 replicates each (8 hens + 1 cock). The remaining 21 cocks were also divided into 7 groups of 3 cocks each and housed separately for semen evaluation . Hens of treatment 1 received a basal layer diet (as a control diet). Hens of treatment 2 received the basal diet plus 1000 ppb aflatoxin B1 (AF-diet). Hens of treatments 3,4,5,6 and 7 were received the AF-diet supplemented with 0.5% hydrated sodium calcium alumino silicate (HSCAS), 0.5% HSCAS+1% radish extract (RE), 1% RE+ 1% sodium sulphate (SS), 0.5% HSCAS+1% SS or 2.5%mixture of HRS ( 0.5% HSCAS +1%RE+1%SS), respectively. The experimental groups were fed on the experimental diets from 30 to 34 weeks ( treatment period), then they were fed the control diet from 34 to 38 weeks ( recovery period ).Main results obtained can be summarized as follow : 1- Hens fed AF-diet without additives recorded the lowest values of body weight gain, egg number, egg weight, egg mass, feed intake and the worst feed conversion. Also, AF-diet alter egg quality parameters. 2- Relative weight of liver, spleen, and heart significantly increased while ovarian relative weight decreased in groups fed AF-diet. 3- Liver lipid and serum alkaline phosphatase significantly increased while yolk cholesterol and serum calcium, phosphorus and triglycrides decreased in hens fed AF-diet. Also, AF-diet decreased semen volume, concentration and mass motility while sperm abnormality and percentage of dead sperms increased. 4- AF-diet decreased fertility, hatchability of eggs, chick weight at hatch and increasing chick abnormality. Also, hens fed AF-diet recorded the highest value of AFB1 residue in egg yolk. 5- All feed additive used in this study decreased the negative effects of toxicity due to aflatoxicosis for all studied criteria. The combination of HSCAS and SS was the most successful additive in this study, compared to the others.

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