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Articles by M.M. Tabatabaei
Total Records ( 2 ) for M.M. Tabatabaei
  A.A Saki , M. Momeni , M.M. Tabatabaei , A. Ahmadi , M.M.H. Rahmati , H.R. Hemati Matin and A. Janjan
  The main objective of this study was to determine the effects of various feeding programs (with different energy protein levels) and strain on broiler performance. Three hundred ninety six day old chicks were used in this study. The treatments groups were designed in a 2 x 3 factorial with two commercial strains (Cobb and Arbor Acres Plus) and three dietary programs 1) NRC regimen 2) Single diet (S) and 3) Phase Feeding Regimen (PF). Traits such as fed intake, feed conversion ratio, body weight, production index, mortality and growth rate were recorded for strains and feeding programs. At the end of period there were no significant effects between strains in mentioned traits. But for NRC and PF feed intake was significantly lower than S diet (p<0.05). Also NRC and PF diets significantly increased growth rate and average body weight comparing to S diet (p<0.05). NRC regimen, production index and feed conversion ratio were significantly better than PF and S diets (p<0.01). Except to feed conversion ratio at 42 days of age there were no significant interaction between strains and diets (p>0.05). S diet caused to decrees performance and economical efficiency. Decreasing diet cost and increasing economical efficiency were obtained by PF diet without any response in performance. It was concluded that better performance appeared by Arbor Acres Plus strain in regarding of NRC diet.
  A. Ahmadi , M.M. Tabatabaei , H. Aliarabi , A.A. Saki and S.A. Hosseini Siyar
  Ninety hens were divided into six groups as a 2x3 factorial design and fed diets containing Wheat Bran (WB) at two levels of 0 and 5% and the enzyme phytase at three levels of 0, 150 and 300 FTU kg-1. Egg weight, egg production, feed intake and Feed Conversion Ratio (FCR) were determined. Eggs were collected on two consecutive days at fortnightly intervals to measure egg size and egg component weights. Shell thickness was measured. Egg production, egg weight, FCR and feed intake were not affected by WB. Egg production, egg weight and feed intake were significantly higher in phytase-supplemented groups than unsupplemented groups. FCR differed significantly between dietary treatments as phytase supplementation significantly decreased FCR. Inclusion of WB to the diets had no effect on egg size and albumen weight. Phytase supplementation did not affect yolk weight, although albumen and shell weight were significantly affected.
 
 
 
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