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Articles by A.M. El-Waziry
Total Records ( 7 ) for A.M. El-Waziry
  A.M. El-Waziry , F. AlKoaik , A.I. Khalil , H. Metwally and M.A. Al-Mahasneh
  This study was conducted to evaluate of date palm leaves (Phoenix dactylifera L.) silage or dry as alternative for ruminants using in vitro gas production technique. Rumen liquor was obtained from four Naimey sheep fed on barely and alfalfa hay (slaughter house). The mixture of rumen fluid with buffer 1: 2 v/v, 30 mL were placed into each syringe, containing the samples. The incubation procedure was repeated three times. The gas production was recorded after 3, 6, 9, 12, 24, 48 and 72 h of incubation. Potential Degradability (a+b) and gas production rate (c) were measured. Metabolizable Energy (ME), Net Energy (NE), Organic Matter Digestibility (OMD) and Microbial Protein (MP) were also determined. Crude protein in date palm leaves silage was higher than that in dry form in date palm leaves, the values were 5.80 and 4.83%, respectively. Crude fiber was 34.92 and 32.23% for dry and silage of date palm leaves, respectively. There was no difference in pH between date palm leaves in both forms (dry and silage) and the values were 6.22 and 6.62 for dry date palm leaves and date palm leaves silage, respectively. The present study conclude that date palm leaves could be suitable for ruminants as a source of fiber which used as an energy source for host animal and microbes in the rumen. It can be used in dry form to provide ensiling time as alternative feeds for ruminants.
  A.M. El-Waziry , F. AlKoaik , A.I. Khalil , H. Metwally and M.A. Al-Mahasneh
  This study was conducted to evaluate of tomato wastes (fresh or silage), cucumber wastes (fresh or silage) as alternative feeds for ruminants using in vitro gas production technique. Rumen liquor was obtained from four Naimey sheep fed on barely and alfalfa hay (slaughter house). The mixtures of rumen fluid with buffer 1: 2 v/v, 30 mL were placed into each syringe, containing the samples. The incubation procedure was repeated three times. The gas production was recorded after 3, 6, 9, 12, 24, 48 and 72 h of incubation. Potential degradability (a+b) and gas production rate (c) were measured. Metabolizable Energy (ME), Net Energy (NE), Organic Matter Digestibility (OMD) and Microbial Protein (MP) were also estimated. Tomato silage had the highest crude protein followed by tomato fresh, cucumber fresh and cucumber silage. There were no significant differences (p>0.05) among forms of wastes in potential degradability (a+b) except cucumber silage had the lowest a+b. The OMD was highest in tomato fresh and lowest in cucumber silage. There were no significant differences between tomato fresh, tomato silage and cucumber fresh but the lowest value of ME recorded with cucumber silage. There were no significant differences (p>0.05) among four forms in NE except in cucumber silage. The present study suggest that tomato waste could be used in the fresh form as alternative feeds for ruminants followed by tomato silage, cucumber fresh and cucumber silage.
  A.M. El-Waziry , A.N. Al-Owaimer , G.M. Suliman , E.S. Hussein and M.A. Abouheif
  An experiment was conducted to evaluate the effects of castration on growth performance, carcass characteristics and meat quality of Ardhi goat kids. Twenty-four weaner male kids with an average age of 3 months and 14.1±0.91 kg body weight were assigned randomly to one of two equal groups and the kids in one group were castratoed using elastrator rings while the other group was left intact. All kids were fed ad libitum on high energy commercial pellets for 82 days and slaughtered. Castration had no significant effect on slaughter weight, feed intake, gain, feed: gain ratio, carcass weight and dressing percentage. Castrated goat kids had significantly (p<0.05) heavier liver weight, more body fat thickness and lighter head weight than comparable intact. There were no differences (p>0.05) between castrated and intact kids on all studied internal fat depot weights, chemical composition of the 9-11th rib joint and meat quality of the longissimus muscle except for the separable fat percentage from 9-11th rib joint which was higher (p<0.05) for castrated as compared to intact kids.
  M.H. Almitairy , A.N. Alowaimer , A.M. El-Waziry and G.M. Suliman
  A total of 21 Najdi male lambs were used to evaluate inclusion of discarded dates in lambs’ diets. Experimental diets are presented in two levels 15 and 30% to replace commercial concentrate mixture. The results showed that daily feed intake was significantly (p<0.05) higher in 30% group than control group. Feed conversion ratio did not differ significantly (p>0.05) between the treatment groups. The highest averages of daily gain and final weight were attained by 30% group which is significantly (p<0.05) higher than that of the control group followed by the 15% group that is not differ significantly (p>0.05) from both other groups. Carcass components showed no significant differences between the treatments except for liver and lungs and trachea. The results revealed that feeding lamb on 30% discarded date was associated with improving meat quality traits as juiciness, flavor and general acceptability.
  S. Basmaeil , A.M. El-Waziry and A.N. Al-Owaimer
  The current study was conducted to investigate the breed effect on growth and digestibility coefficients in camel. Four young male camel breeds were used (Majaheem, Suffr, Sho’l and Wodoh) 6-9 months old with average weight 133.83±2.83 kg were used in 204 day trial. Animals were group fed of three animals in four replicates for each breed. A balanced energy/protein ration used to ensure that animals get their nutrient requirements using ad lib twice feeding system per day in order to satisfy their feeding intake. Average daily feed intake, average daily gain, feed conversion efficiency and digestibility coefficients were calculated. The results obtained from the growth trial indicated that the final weight of animals after 204 days was 292.33±6.65, 278.17±11.36, 284.35±21.89 and 270.35±10.69 kg for Majaheem, Wodoh, Suffr and Sho’l, respectively. The average daily gain was 770, 698, 734 and 690 g for Majaheem, Wodoh, Suffr and Sho’l, respectively. Feed intake was 4.73±0.10, 4.68±0.10, 5.24±0.84 and 4.53±0.26 kg for Majaheem, Wodoh, Suffr and Sho’l, respectively. Majaheem breed have the best feed conversion efficiency compared to other breeds.
  A.M. El-Waziry
  The current study was examined the formation of the three Stereoisomers (SI) of 2, 6-Diaminopimelic Acid (DAP), lysine and pipecolic acid from aspartic acid by mixed rumen bacteria and protozoa. Mixed rumen bacteria and protozoa were isolated from the rumen of sheep given concentrate mixture and hay and incubated with and without aspartic acid (5 mM). The microbial suspensions were anaerobically incubated at 39°C for 12 h. The results showed that mixed rumen bacteria produced meso-DAP by 0.221 mM, LL-DAP by 0.013 mM, lysine by 0.211 mM during the 12 h incubation periods. This is the first finding to show the synthesis of DAP-SI and lysine from aspartic acid by rumen bacteria. Mixed rumen protozoa produced meso-DAP by 0.231 mM, lysine by 0.443 mM and pipecolic acid by 0.042 mM during the 12 h incubation periods. DD-DAP was not detected during the incubation periods of mixed rumen bacteria and protozoa and also LL-DAP was not detected by mixed rumen protozoa. The synthesis meso-DAP from aspartic acid by rumen protozoa was demonstrated for the first time. The results indicated that mixed rumen bacteria have the ability to synthesis meso-DAP, LL-DAP and lysine from aspartic acid meanwhile, the mixed rumen protozoa have the ability to produced meso-DAP, lysine and pipecolic acid from aspartic acid.
  A.M. El-Waziry , A.N. Al-Owaimer , S. Basmaeil , H. Metwally and G.M. Suliman
  The present study was conducted to investigate the carcass characteristics and meat quality in four Saudi camel breeds. Four young male camel breeds were used (Majaheem, Suffr, Sho’l and Wodoh) 6-9 months old with average weight 133.83±2.83 kg. Animals were group fed of three animals in four replicates for each breed. A balanced energy/protein ration was used to ensure that animals get their nutrient requirements using ad lib twice feeding system. When animals slaughtered, carcass characteristics were measured to evaluate meat quality. The results obtained from growth trial indicated that the slaughter weight of animals after 204 days was 292.33±6.65, 278.17±11.36, 284.35±21.89 and 270.35±10.69 kg for Majaheem, Wodoh, Suffr and Sho’l, respectively. At slaughter, the hot carcass weight was 176.38, 164.78, 170.21 and 164.9 kg for Majaheem, Wodoh, Suffr and Sho’l, respectively. Dressing percentage was 59.37, 57.88, 58.76 and 60.00% for Majaheem, Wodoh, Suffr and Sho’l, respectively. There were no any significant differences between breeds in most parts of the carcass muscle area especially color of Longissimus dorsi muscle, shear force and chemical analysis of meat.
 
 
 
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