@article { author = {Abd El-Latif, Kh. and Elmeleigy, K. and Atwa, Manal and Atwa, M.}, title = {AMELIORATION OF LEAD TOXICITY ON GROWING RABBITS}, journal = {Journal of Animal and Poultry Production}, volume = {4}, number = {1}, pages = {1-15}, year = {2013}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3642}, eissn = {2090-3723}, doi = {10.21608/jappmu.2013.70994}, abstract = {The aim of the present study was to investigate the effect of the administration of vitamin C, clay, methionine and D-penicillamine against lead-induced toxicity. Rabbit groups fed diets contaminated with 200 mg lead/kg diet recorded the lowest final live body weight, weight gain and feed intake by 9.48, 13.03 and 10.57%, respectively when compared to the healthy control group, on the other hand, feed conversion ratio was impaired by 2.83%. Feed cost, return from body gain and final margin were decreased in rabbit fed diets contaminated with lead when compared with the control group. Lead ingestion resulted in an increase in plasma AST, urea-N and createnine, while the concentrations of hemoglobin, total protein, albumin, globulin and erythrocytes account were decreased. Daily gain (0-8 weeks) were 53.63, 47.10, 61.32 and 63.16%, respectively in rabbit groups fed diets supplemented with clay, D-penicillamine, vitamin C and DL-methionine when compared with the control group. Rabbit groups fed diets supplemented with vitamin C and DL-methionine recorded the best feed conversion compared with the other experimental groups. Rabbit groups fed diets supplemented with vitamin C and DL-methionine recorded higher return from body gain and final margin than the other experimental groups. Rabbits fed lead-exposed diets and supplemented with clay, D-penicillamine, vitamin C and DL-methionine recorded higher final body weight, daily gain, feed intake, return from body gain and final margin, and the best feed conversion compared with the control group. Administration of clay, D-penicillamine, vitamin C and DL-methionine in combination with lead significantly affected erythrocytes, hemoglobin, plasma total protein, urea-N, createnine and AST concentration. Pre-slaughter weight affected each of significantly  carcass, carcass cuts and kidney fat weights. On the other hand carcass weight and carcass components were insignificantly affected with lead toxicity, feed additives and their interactions. Contaminated rabbit diets supplemented with clay, D-penicillamine, vitamin C and DL-methionine significantly (P<0.001) reduced lead residual in rabbits muscle. Lead residual in rabbit muscles fed lead contaminated diet was 1.917 mg/kg body weight, while the lead residual in rabbits fed diets contaminated with lead and supplemented with natural clay, D-penicillamine, vitamin C and DL-methionine were 1.293, 1.603, 1.407 and 1.433 mg/kg body weight, respectively.  }, keywords = {lead toxicity,Rabbit,clay,methionine,vitamin c,D-penicillamine,Growth performance,blood components,slaughter traits}, url = {https://jappmu.journals.ekb.eg/article_70994.html}, eprint = {https://jappmu.journals.ekb.eg/article_70994_bc1f4ab4baa492e6050604c32f31a949.pdf} } @article { author = {El-Afifi, T. and Abo.Haggar, Amel and El Sawy, Assia and Abdel - Salam, A. and El-Meleigy, Kh.}, title = {EFFECT OF PROBIOTIC BACTERIA ON AFLATOXINS IN BROILER CHICKENS: GROWTH PERFORMANCE, SERUM PARAMETERS AND HISTOLOGICAL ALTERATIONS}, journal = {Journal of Animal and Poultry Production}, volume = {4}, number = {1}, pages = {17-35}, year = {2013}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3642}, eissn = {2090-3723}, doi = {10.21608/jappmu.2013.70995}, abstract = {The main objective of this study was to evaluate aflatoxin (AFs) removal ability of probiotic bacteria.  Two hundred and seventy one-day-old (Ross 308) broiler chicks were randomly distributed among nine groups. The dietary treatments were: 1 control; 2&3 artificially contaminated diets with 0.5&1mg of AFs, respectively; 4&5 received oral gavages anaerobic caecal culture (probiotic). 6, 7, 8&9 AFs-contaminated diets plus probiotic feed additive (AFS-PB). The criteria of evaluation included body weight gain (BWG), Feed consumption (FC), and feed conversion ratio (FCR). The toxic effects of aflatoxins were apparently in groups received AFs contaminated diet which showed significantly lower  BWG and FC and impaired FCR compared with control diet. Such effects overcome by adding probiotic bacteria to aflatoxin treated groups. On the other hand, AFs treated group showed significant increased in serum liver function enzymes (alanine aminotransferase (ALT), aspartate aminotransferase (AST) ), urea and creatinine levels. The intakes of probiotic bacteria significantly alleviated the elevation of ALT, AST, urea and creatinine levels. The results indicated the effect of probiotic as a potential protective agent against aflatoxin toxicity to decrease the risk of occurrence of liver and kidney dysfunction and occurrence of cancer and protect against both membrane and DNA damage.  }, keywords = {probiotic,Broilers,Aflatoxins,body weight,feed intake,feed conversion}, url = {https://jappmu.journals.ekb.eg/article_70995.html}, eprint = {https://jappmu.journals.ekb.eg/article_70995_da250079981d8327aa15630e50677c2c.pdf} } @article { author = {Hassan, R. and Abo Egla, El-Samra and Ismail, F. and Gaber, E.}, title = {EFFICACY OF DIETARY VITAMIN C, E AND THEIR COMBINATION ON EGG PRODUCTION AND EGG QUALITY OF DOKKI-4 LAYING HENS DURING EGYPTIAN SUMMER SEASON}, journal = {Journal of Animal and Poultry Production}, volume = {4}, number = {1}, pages = {37-48}, year = {2013}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3642}, eissn = {2090-3723}, doi = {10.21608/jappmu.2013.70999}, abstract = {An experiment was conducted to study the effects of adding vitamin C (L-ascorbic acid), vitamin E (µ- tocopherol acetate ) and their combination to diets on productive performance, egg quality and some blood plasma constituents of  Dokki-4 laying hens during  summer season in Egypt. The experimental period lasted from June to September, 2010. A total of 120, 30 weeks old Dokki-4 hens were randomly divided into four equal groups, each contained 3 equal replications.  First group was fed a basal diet (control group).The other groups were fed the basal diet supplemented with 250 mg vitamin C/ kg diet (group 2),150 mg vitamin E /kg diet (group 3) and 250 mg vitamin C plus 150 mg of vitamin E (group 4).The results indicated that supplementation of  the basal diet with the combination of vitamin C and E (group 4) resulted in positive effects on final body weight, egg production, egg weight, egg mass, feed intake and yolk index as compared to those of the control group. However, feed conversion was numerically improved for the birds received the vitamin supplemented diets as compared to the control hens. Shell thickness was significantly (P≤0.05) improved with adding vitamin E alone or in combination with vitamin C as compared to their control counter parts. Blood Plasma protein was significantly increased in hens given vitamin C alone or in combination with vitamin E compared with their controls Plasma cholesterol concentration was significantly decreased, whereas plasma levels of calcium and phosphorus were significantly increased response to dietary single and combined addition of vitamins C and E as compared to those of the control group. Dietary supplementation with 250 mg ascorbic acid plus 150 mg vitamin E proved to be an effective practice for alleviating the adverse effects of heat stress on Dokki-4 laying hens during summer season in Egypt.  }, keywords = {vitamin c,Vitamin E,heat stress,laying hens,performance}, url = {https://jappmu.journals.ekb.eg/article_70999.html}, eprint = {https://jappmu.journals.ekb.eg/article_70999_8b5b70363c095a386a8167aa40b3c091.pdf} } @article { author = {Ben Naser, K.}, title = {IMPROVING THE ACCURACY OF SELECTION INDICES USING MULTISOURCE OF INFORMATION IN LAYING CHICKENS}, journal = {Journal of Animal and Poultry Production}, volume = {4}, number = {1}, pages = {49-56}, year = {2013}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3642}, eissn = {2090-3723}, doi = {10.21608/jappmu.2013.71004}, abstract = {      Data were collected from one pedigreed generation of Norfa layers. 149 cocks and 477 hens were used. Each cock artificially inseminated three hens. 498 completely records of progeny were used. 15 selection indices were constructed by using different combinations of 4 traits and 3 sources of information. The studied traits were age at sexual maturity (SM), body weight (BWM), egg weight (EWM) and egg number (EN42wk). The sources of information were own performance (OP), full sibs (FS) and half sibs (HS). The Least Squares and Maximum Likelihood General Purpose Program-Mixed Model "LSMLMW" (Harvey, 1990) was used to estimate heritability and phenotypic and genetic correlations of studied traits.       Heritability estimates of SM, BWM, EWM and EN42wk were 0.32, 0.93, 0.17 and 0.57, respectively. The genetic and phenotypic correlations between SM, BWM and EWM were positive, while these correlations between each of these three traits and EN42wk were negative. The value of each trait was affected by the source of information and number of traits in the index. By using the same source(s) of information, the value of each trait increased if the index was constructed by using 3 traits instead of 4 traits.       The accuracy of the index (rTI) depends on number of traits; sources of information and the value of each trait were used to construct the index. There is a negative correlation between the value of omitted trait in the original index and the relative efficiency of the index. Excluding OP as a source of information from the index caused the highest decreasing in the accuracy of the index (rTI). On the other hand excluding HS caused the lowest decreasing in the accuracy of the index. In relation to the original index (I1), the most effective index (rTI=100.6) was I13 which include the 4 traits (SM, BWM, EWM and EN42wk) and all available sources of information (OP, FS and HS). The main objective of this study was to evaluate a single source of information selection index versus multisource of information of information multi-traits selection indices in Norfa layers.  }, keywords = {body weight,egg weight,egg number,Genetic parameter,selection index,Multi-Source}, url = {https://jappmu.journals.ekb.eg/article_71004.html}, eprint = {https://jappmu.journals.ekb.eg/article_71004_46958267bf972507a4f9c9be6af85f31.pdf} }