M. AYAZ; M. SHIVAZAD; M. H. SHAHI; A. HAJIBABAEI; E. SHAHRAMI
Abstract
This experiment was conducted to determine the AME, AMEn, TME and TMEn of beet pulp fed to male ostriches at their 90 d of age. Different levels of beet pulp (0, 15, 30 and 40%) were fed through replacements in the basal diet. For a determination of AME and AMEn using marker method, beet pulp was ...
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This experiment was conducted to determine the AME, AMEn, TME and TMEn of beet pulp fed to male ostriches at their 90 d of age. Different levels of beet pulp (0, 15, 30 and 40%) were fed through replacements in the basal diet. For a determination of AME and AMEn using marker method, beet pulp was replaced in the basal diet at 40%. A number of 16 vs. 8 ostrich chicks were employed in each of the total collection vs. marker methods, respectively. A completely randomized design of 4 replicates was adopted. AME and AMEn were determined via chromic oxide marker and via total excreta collection methods. The AME and AMEn for beet pulp were recorded as 3199±238, 2902±95, 3125±214 and 2798±86 kcal/kg (at 40 % of replacement) as assessed through chromic oxide marker and total excrete collection, methods respectively. Assessment of TME and TMEn of beet pulp as based upon different levels of feedstuff were recorded 3215 and 3134 kcal/kg respectively. The results finally indicated that use of the ME data assessed via adult leghorn cockerel (in formulating the starter diet for ostrich) is not applicable, and values of ME in ration formulation regarding ostrich are to be determined
Seyed Abdolla Hosseini; Mojtaba Zaghari; Houshang Lotf-allahian; Mahmoud Shivazad; Hossein Moravej
Volume 42, Issue 4 , March 2012, , Pages 329-336
Abstract
An experiment was conducted to determine the appropriate methionine level in broiler breeder’s diet. The treatments consisted of 6 levels of methionine (0.2, 0.25, 0.3, 0.35, 0.4 and 0.45% diets), with 4 replicates of 7 hens each for a duration of 8 weeks and for ages of 28 to 35 weeks. Diets contained ...
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An experiment was conducted to determine the appropriate methionine level in broiler breeder’s diet. The treatments consisted of 6 levels of methionine (0.2, 0.25, 0.3, 0.35, 0.4 and 0.45% diets), with 4 replicates of 7 hens each for a duration of 8 weeks and for ages of 28 to 35 weeks. Diets contained similar levels of protein metabolizable energy. The levels of the other amino acids were taken equal in all the diets to ensure that methionine was chosen as the only limiting amino acid in each dietal treatment. Feed intake, egg production, egg weight, settable eggs, egg mass, feed conversion ratio, egg content and SRBC responses were evaluated during the experimental periods. For finding out the optimum methionine level, Simple Additive Weighted (SAW) and Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) methods as well as economic maximum equation were employed. Application of multi attribute decision making system SAW and TOPSIS indicated the appropriate methionine levels as 0.329 and 0.297 percent in the diets, respectively. Total methionine content in the diets, for maximum economic profit (according to feed cost and chick value) was recorded as 0.307. Results finally indicated that using 0.3-0.33 percent methionine in the Arian broiler breeder diets could be approppriately suggested for maximum performance and most economical profit.
