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Articles by Y.M. Al-Yousef
Total Records ( 3 ) for Y.M. Al-Yousef
  S.B. Al-Suwaiegh and Y.M. Al-Yousef
  Background and Objective: Saudi Arabia is one of the major date producing countries in the world. Consequently, huge quantity of date palm leaves are removed annually as agricultural waste and is a potential source of environmental problems due to its improper disposal. The aim of this study was to evaluate the effect of feeding Urea Treated Palm Leaves (UTPL) by substituting the regular feed on milk production, milk composition and animal performance. Materials and Methods: This study was conducted at Agricultural Research and Training Station, King Faisal University, Al-Ahsa, Saudi Arabia. Twenty Ardi goats in their 2nd and 3rd lactation stages were selected and randomly allotted to one of the four diets with five replicates. A total of four diet treatments were studied. Data were analyzed using SPSS package (SPSS 14.0 SPSS Inc. Inc., Chicago, IL, USA). Results: Dry matter intake of goats fed with 10 UTPL was significantly (p<0.05) low than the control and other diets. Milk Yield (MY) was significantly low for the control group than the other groups. Fat (%) of milk was significantly higher in goats fed with 20 and 30 UTPL diets than other groups. Milk protein percentage was significantly high in goats fed with 20 UTPL diet than the control and other diets. Goats fed with 30 and 10 UTPL diets contained significantly more lactose (%) than those fed with the control and 20 UTPL diets. The DM and OM digestibility of goats fed with 10 UTPL diet was significantly low compared to other diets. The CP digestibility was significantly (p<0.05) higher of goats fed with 20 and 30 UTPL diets than the control and 10 UTPL. Goats fed with control and 30 UTPL diet showed significantly (p<0.05) higher NDF, ADF digestibility and DCP than those fed with 20 and 10 UTPL diets. Goats fed with control, 20 and 30 UTPL diets were significantly (p<0.05) higher in NFE digestibility than those fed with 10 UTPL diet. Goats fed with 10 UTPL diet was significantly low in TDN than other dietary treatments. Conclusion: Urea treated palm leaves can be replaced up to 30% of alfalfa hay without affecting the animal health, milk composition, crude protein digestibility and overall performance.
  A.A. Alshanbari , S.B. Al-Suwaiegh , Y.M. Al-Yousef and T. A. Al-Shaheen
  Background and Objective: Goats are one of the major range animals reared for milk and meat production in Saudi Arabia. These animals are capable to survive under highly drought and feed stress conditions. To achieve high milk and meat production, this study was conducted to determine the effect of SCFP on the productive performance of Ardi goats. Materials and Methods: The study utilized different inclusion rates of SCFP on 20 lactating goats by following a Randomized Complete Block Design (RCBD). Five SCFP rates namely 0 (control) 2.5, 3.5 and 4.5 g/h/day were tested with 3 to 4 replications. Animals were quarantined for two weeks to acclimatize the metabolic crates and new ration. Milk yield was recorded daily for 90 days. Two experiments were conducted on 20 adult and 20 goat kids for treatment evaluation. Data were analyzed statistically by following appropriate methods for treatment evaluation. Results: Milk production, feed efficiency conversion rates and milk fat increased for groups three and four with inclusion rate of 3.5 and 4.5 g/h/day of SCFP, respectively, but without affecting milk protein and lactose concentration. The difference between Total Digestion Nutrients (TDN) and digestibility of Organic Matter (OM) was not significant between the control and other treatments. However, a significant difference was found between the control and other groups in Crude Protein (CP) digestibility. Conclusion: Supplementation of SCFP did not show any effect on milk production of Ardi goats, but it improved the FCR and milk fat yield. Also, ADF digestibility improved without any effect on OM and NDF digestibility. Besides, supplementing SCFP reduced the CP digestibility. Overall, the performance of Ardi goats improved with SCFP supplementation.
  S.M. Hassan , Y.M. Al-Yousef and C.A. Bailey
  Using guar meal in poultry nutrition is limited because of its anti-nutritional content. This study was set up to evaluate whether or not anti-nutritional compounds other than residual Guar Gum (GG) contribute to Guar Meal (GM) relatively poor feeding value for poultry. One hundred eighty one-d-old broiler chicks were randomly distributed among 3 treatments with 4 replicates of 15 chicks each. Three dietary treatments were prepared in which the same dietary concentration of GG was supplemented to growing broilers as pure GG, GM or Guar Bean (GB). All diets were calculated to contain 1.35% GG. Chicks were assigned to one of the following treatments: (1) broiler diet reformulated with 3.85% GB, (2) broiler diet reformulated with 2.5% GM and (3) broiler diet with 1.35% GG. Feed consumption, body weight, b. wt. gain, feed conversion ratio and mortality rate were recorded at weekly intervals from 1-35 d. Total feed consumption recorded from 1-21 was significantly higher in chicks fed 3.85% GB versus those fed 1.35% GG. Total feed consumption from 22-35 and 1-35 day was significantly higher in chicks fed 3.85% GM than those fed 3.85% GB. The final b. wt. at 35 d for chicks fed 1.35% GG were significantly lower than both chicks fed 2.5% GM and 3.85% GB. Significantly higher weight gains in 35-days-old broilers fed both whole (ground) GB and GM versus GG suggest anti-nutritional factors other than GG are not major contributors limiting GM use in poultry feeds.
 
 
 
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