Performance and carcass traits of broilers supplemented with probiotic or neomycin antibiotic [electronic resource].

By: Contributor(s): Language: English Summary language: Arabic Description: p.107-114Other title:
  • أداء وصفات الذبيحة لبداري التسمين والمضاف إليها البروبيوتك إو المضاد الحيوي النيومايسين [Added title page title]
Uniform titles:
  • Egyptian journal of animal production, 2014 v. 51 (2) [electronic resource].
Subject(s): Online resources: In: Egyptian journal of animal production 2014.v.51(2)Summary: An experiment was conducted designed to evaluate the effect of a probiotic as alternative to antibiotic growth promoters for broiler chicks. One hundred and fifty unsexed one-day-old Ross broiler chicks were randomly assigned to five equal groups; the first was considered the control group, while the second to fifth was the treatments groups. Each group included three equal replicates each of 20 chicks. The ration used in the first group was the experimental ration without any supplements (control) while, those of 2-5 treatment groups were the same ration, but supplemented with antibiotic Neomycin (200 mg/kg diet), probiotic (lglkg diet), probiotic (1.5g/kg diet), and probiotic (2g/kg diet), respectively. All birds were raised in wire floored batteries with the following dimensions: width: 97 cm; length: 50 cm; height: 45 cm under similar environmental and management conditions. Body weight (BW'), body weight gain (BWG), feed intake (F1), feed conversion ratio (FCR); carcass and some organ weights percentages as well as intestines and ceca lengths were determined at the end of the experiment (42 days of age). The obtained results revealed that birds fed ration supplemented with antibiotic (G2), achieved significantly heavier final BW and higher BWG than birds received different levels ofprobiotic (G3 to G5) or the control diet (Gl). However, birds received 1g or 1.5g probiotic/kg diets (G3 or G4) had significantly higher final BW and BWG than those fed the probiotic diet (G5) and the control diet (G1).
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An experiment was conducted designed to evaluate the effect of a probiotic as alternative to antibiotic growth promoters for broiler chicks. One hundred and fifty unsexed one-day-old Ross broiler chicks were randomly assigned to five equal groups; the first was considered the control group, while the second to fifth was the treatments groups. Each group included three equal replicates each of 20 chicks. The ration used in the first group was the experimental ration without any supplements (control) while, those of 2-5 treatment groups were the same ration, but supplemented with antibiotic Neomycin (200 mg/kg diet), probiotic (lglkg diet), probiotic (1.5g/kg diet), and probiotic (2g/kg diet), respectively. All birds were raised in wire floored batteries with the following dimensions: width: 97 cm; length: 50 cm; height: 45 cm under similar environmental and management conditions. Body weight (BW'), body weight gain (BWG), feed intake (F1), feed conversion ratio (FCR); carcass and some organ weights percentages as well as intestines and ceca lengths were determined at the end of the experiment (42 days of age). The obtained results revealed that birds fed ration supplemented with antibiotic (G2), achieved significantly heavier final BW and higher BWG than birds received different levels ofprobiotic (G3 to G5) or the control diet (Gl). However, birds received 1g or 1.5g probiotic/kg diets (G3 or G4) had significantly higher final BW and BWG than those fed the probiotic diet (G5) and the control diet (G1).

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