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Articles by A.M. Abd El Tawab
Total Records ( 2 ) for A.M. Abd El Tawab
  A.M. Abd El Tawab , O.H. Matloup , A.M. Kholif , S.A.H. Abo El-Nor , H.A. Murad , H.M. El-Sayed and M.M. Khorshed
  Two experiments were carried out to evaluate the effects of laboratory produced tannase enzyme (Tanozym) to diet including Palm Kernel Powder (PKP) on in vitro dry matter and organic matter disappearance (IVDMD and IVOMD) and in vivo nutrients digestibility, nutritive values, milk production and composition by lactating Baladi goats. In vitro experiment, IVDMD and IVOMD, were determined for control diets (60% CFM and 40% Berseem hay); (T1) control diet plus different levels of polyethylene glycol (PEG), being 10, 15 and 20 g kg-1 DM and (T2) control diet plus different levels of Tanozym (3.9, 5.85 and 7.8 U kg-1 DM). The maximum IVDMD and IVOMD values were observed with 5.85 U kg-1 DM for Tanozym and 20 g kg-1 DM for PEG compared to control, however there was no significant (p<0.05) difference between 15 and 20 g kg-1 DM. The in vivo experiment was carried out on nine lactating Baladi goats after 7 days of parturition where animals were divided into three groups, three animals each, using 3x3 Latin square design. The first group fed control diet (60% CFM and 40% Berseem hay), the second group fed T1 (control diet plus 15 g kg-1, DM), the third group fed T2 (control diet plus 5.85 U kg-1, DM). Tanozym supplementation significantly (p<0.05) increased nutrients digestibility, nutritive values, ruminal Total Volatile Fatty Acids (TVFA’s) but insignificant (p<0.05) increased ammonia nitrogen (NH3 N). Lower significant (p<0.05) values of rumen pH were recorded for treated groups compared with the control. Blood serum of animals fed Tanozym and PEG had higher values of total protein, albumin, globulin, total lipids, urea and glucose but lower values of AST and ALT compared with those of control. Daily milk yield, SNF, lactose and ash yield were significantly (p<0.05) increased with Tanozym compared control group. While, there are no significant (p>0.05) differences among groups for fat corrected milk 4%, total solids, fat and total protein yield.
  M.S.A. Khattab , E.A. El-Bltagy , A.M. Abd El Tawab , O.H. Matloup , T.A. Morsy , H.H. Azzaz and M.M. Abdou
  Background and Objective: Utilization of date seeds (processed date by product) as a feedstuff in diets of farm animals are being in spotlight, this study were carried out to investigate the effect of feeding diets contain cracked date seed with or without fibrolytic enzyme, versus control diet using Egyptian buffaloes. Materials and Methods: Fifteen multiparous lactating Egyptian buffaloes (600±30 kg BW) were randomly assigned for 90 days in a completely randomized experimental design. Buffaloes were randomly assigned to 3 groups and fed a basal diet of concentrates, Egyptian clover and rice straw in a ratio of 50:30:20 DM basis (T1), the second group fed (T2) concentrate feed mixture, cracked date seed, Egyptian clover and rice straw as 35:15:30:20, respectively and the third group fed as T2 diet plus fibrolytic enzyme. Results: T2 groups had reduced feed intake (p>0.09) and DM, OM, NDF and ADF digestibility (p<0.05) than control (T1). While, T3 improved fiber digestion (NDF and ADF) compared with T2, with no differences with control (T1). Similarly, T2 resulted in lower (p<0.05) daily milk yield, energy corrected milk and milk efficiency (p<0.05) compared with T1, whilst, T3 improved the milk yield and ECM and milk efficiency compared with T2 (p<0.05) but without differences with T1 (p<0.05). Conclusion: It could be concluded that using cracked date seed with fibrolytic enzymes in lactating buffalo's diet improved feed conversation and productive performance with no negative effect on animal health.
 
 
 
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