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Articles by S.A.H. Abo El-Nor
Total Records ( 4 ) for S.A.H. Abo El-Nor
  H.M.M. Khattab , H.M. El-Sayed , S.A.H. Abo El-Nor , H.A. EL-Alamy and R.M.A. Abd El-Gawad
  Twenty lactating buffaloes divided into 4 groups (five each) were used to evaluate the singular and combined effect of bovine somatotropin and monensin on the productive performance of Egyptian dairy buffaloes. Treatments were (1) control, (2) injection of exogenous bovine somatotropin (bST), (3) concentrate feed mixture top dressed with 400 mg of monensin (M)/d/animal, (4) somatotropin (bST) and monensin in combination, during 14 day before expected calving and the first 120 day of lactation period. Diets and managements were the same for all animals during the experimental period. Dry matter intake was increased for animals which treated with rbST. Digestibility co-efficient of DM, OM, CF, EE and NFE were not affected by treatments, however, digestibility of CP was significantly higher in animals treated with rbST. Milk yield and 4% fat corrected milk yield were significantly (p<0.01) higher in animals treated with rbST group than other groups. Milk fat, Total Solids (TS), Total Protein (TP) and ash contents were not significantly (p>0.05) changed by treatments, however, milk lactose content was significantly (p<0.01) increased by treatments. Plasma total protein and glucose concentrations were significantly (p<0.01) increased by rbST treatment, however, plasma albumin, globulin, A/G ratio, urea, GOT, GPT and cholesterol contents were not significantly affected by treatments. The results of the present study suggest that rbST is efficacious in increasing milk yield without effect on milk composition and without any adverse effects on lactating buffaloes.
  Mostafa Sayed Khattab , S.A.H. Abo El-Nor , H.M.A. El-Sayed , N.E. El-Bordeny , M.M. Abdou and O.H. Matloup
  The increase in bio-ethanol industry has created a need for alternative to corn for ruminants. In the other side there is increase in availability of glycerol, a primary co-product material of biodiesel production. The objective of this study was to investigate the effect of partial replacing of corn with glycerol in diets fed to lactating goats. Twelve lactating Nubian goats were fed a base diet (T1), diets containing 9% glycerol (on DM basis) (T2) and diet containing 9% glycerol plus commercial enzymes 4 g kg-1 DM (on DM basis) (T3) for 84 days. The experimental diets T2 and T3 decreased butyric acids concentration and acetate:propionate ratio in rumen liquor in relation to T1, the concentration of propionic acid was increased in T2 and T3 compared with T1. Replacing corn by glycerol (T2) decreased apparent nutrients digestion coefficients Dry Matter (DM), Organic Matter (OM), Crud Protein (CP), Neutral Detergent Fiber (NDF) and Acid Detergent Fiber (ADF) comparing with other treatments (T1 and T3). Milk production was 1581, 1174 and 1610±77.6 g h-1 day-1 and FCM was 1774, 1030 and 1648±115.9 g h-1 day-1 for T1, T2 and T3, respectively, Milk composition was not altered by glycerol feeding plus fibrinolytic enzymes (T3) except that milk total protein was decreased from 4.6 24 to 3.5%. While, replacing corn by glycerol (T2) decreased values of milk composition compared with control diets (T1). The results indicated that glycerol is a suitable replacement for corn grain with adding fibrinolytic enzymes in diets for lactating goats and that it may be included in rations to a level of at least 9% of dry matter without adverse effects on milk yield or milk composition.
  A.A. Aboamer , M.S.A. Khattab , S.A.H. Abo El-Nor , H.M. Saleh , A.M. Kholif , I.M. Khattab , M.M. Khorshed and H.M. El-Sayed
  Background: Synchronization the rate of which dry matter and crude protein degraded at the rumen significantly affects the synthesis of microbial protein and thus the efficiency of feed utilization. During previous study a new software application "Lacto-sheep" had been developed to facilitate the formulation of the least cost ration considered this important factor. So that formulation of a synchronous least cost ration is possible and not difficult. This study was carried out to investigate the advantages of feeding synchronous least cost ration as an alternative to the traditional least cost ration on nutrients digestibility and milk production and its constituents. Materials and Methods: The kinetics of dry matter and crude protein disappearance and approximate analysis were determined for each feed ingredients used. Then, using our feed formulation software "Lacto-Sheep" two diets; traditional least cost and synchronous least cost ration were formulated and fed to two groups of multiparous lactating Barki ewes (5 ewes each), suckling single with an average body weight (35.10±2.50 kg) using completely random design. Experiment started 2 weeks after lambing and lasted 60 days. Results: The synchronous least cost ration contained variety of protein sources compared with the least cost ration, which did not contain any rich source of protein (soya bean or cotton seed meal) that’s because the cost of feed is the main limiting factor regardless optimizing feed utilization. Digestion coefficient of crude protein was slightly improved in group fed synchronous least cost ration. In addition, milk production and its components were also slightly higher. However, the differences were not significant. Conclusion: Based on the results obtained from this study, synchronous least cost ration seemed to be more practically appropriate ration for feeding lactating Barki ewes.
  S.A.H. Abo El-Nor and Mostafa S.A. Khattab
  There is an increase interesting in enrichment of milk with Conjugated Linoleic Acid (CLA) due to its anti-oxidative and anti-carcinogenic properties. The objective of this study was to investigate the effect of supplementing diets fed to lactating goats with sunflower, fish oil and its blend. Eight lactating Nubian goats were fed a base diet (T1), diet supplemented with 2% sunflower oil (on dry matter (DM) basis) (T2), diet supplemented with 2% fish oil (T3) and diet supplemented with 2% sunflower and fish oil (T4) for 84 day. Milk composition milk fat, protein (%) decreased in T2, T3 and T4 compared with control (T1) while there was no significant differences between treatments in milk lactose content. CLA content in milk fat was higher in response to fish oil or sunflower and fish oil blend compared with control (T1). The results indicated that supplementing diets fed to lactating goats with sunflower, fish oil increased CLA contents in the milk 2-4 times than control.
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