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Articles by A. Afzalzadeh
Total Records ( 2 ) for A. Afzalzadeh
  A. Afzalzadeh , A. Boorboor , H. Fazaeli , N. Kashan and D. Ghandi
  Using four Zandi sheep, digestibility and degradability of bakery waste and barley grain were determined by in vivo and in situ methods. The digestibility and degradability of bakery waste were 78.8 and 74.6 and that of barley grain were 86.8 and 77.1%, respectively. Twenty eight Zandi male lambs were fattened for 85 days with 4 experimental diets composed of 0, 6, 12.5 and 25% bakery waste in a completely randomized design. The lambs were slaughtered and the carcass traits, internal fat and tail-fat fatty acid concentration, iodine and saponification indices were determined. The effect of diets on dry matter intake, final live weight, average daily gain, Feed Conversion Ratio (FCR), carcass weight, internal fat weight, fat-tail weight, the palmitic and oleic acid contents of fat-tail and internal fat, saponification index and the fat-tail linoleic acid concentrations were not significant (p>0.05). The effect of diets on the internal fat and fat-tail iodine index and internal fat linoleic acid concentrations were significant (p< 0.05). It is concluded that bakery waste can be included up to 25% of the fattening diets of the lambs without adversely affecting performance, with a resultant improvement in the quality of the tail fat and internal fat.
  A.A. Khadem , M. Soofizadeh and A. Afzalzadeh
  Thirty male Zandy lambs (25±0.50 kg BW, 10 lambs in each group) were randomly allocated in three (control, 2% bentonite and 4% bentonite) treatment groups. Lambs were fed Total Mixed Rations (TMRs) containing 75% Concentrate Mixture (CM) and 25% forage. Sodium bentonite was mixed with the CM part of TMRs before being mixed with the forage. The fattening period lasted 84 days and data were collected on the performance, blood metabolites and carcass characteristics of lambs. Results showed that sheep fed bentonite added diets had relatively higher feed intake than the control group which ended to slightly higher weight change with a fairly appropriate feed conversion ratio in bentonite fed animals. Compared to the control group, a reasonably lower glucose and urea concentration and a higher total protein content was observed in the blood of sheep fed bentonite supplemented diets. The use of bentonite in diets did not affect the blood cholesterol contents of sheep. Slaughter weights, carcass dressing out percentages and carcass cuts were a bit higher in sheep of bentonite fed groups compared to those in control group. Sheep fed bentonite added diets produced carcasses with lower subcutaneous fat thicknesses and lower fat-tail percentages. Furthermore, feed cost was estimated to be lower for sheep in 2% bentonite group than that in other two groups. In conclusion, the use of two-percent sodium bentonite is suggested for diets of fattening lambs in Iranian feed markets.
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