EFFECT OF FLAVOMYCIN AND SOME PROBIOTIC PROMOTERS ON PRODUCTIVE AND REPRODUCTIVE TRAITS OF MANDARAH AND SALAM HENS | ||||
| Journal of Animal and Poultry Production | ||||
| Article 1, Volume 29, Issue 2, February 2004, Page 553-569 PDF (1.76 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jappmu.2004.238997 | ||||
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| Authors | ||||
| M. M. Shehata,1; A. A. Askar2; Salwa G.K. Genedy3; I. I. Hassan1 | ||||
| 1Agriculture research Center, Animal Production Research Institute, Ookki, Giza, Egypt. | ||||
| 2PoItry Department, Fac. of Agric., Zagazig Univ., Zagazig, Egypt. | ||||
| 3Department of Poultry Production, Fac. of Agric., Tanta Univ., Kafr EI· Shikh, Egypt. | ||||
| Abstract | ||||
| A total number of 156 hens of tow local su ains. Mandarah and Salam of 25 weeks of age were used in this study to investigate the effect of strain and some prornc ~ers en the: performance of laying hens. Birds of each strain were randomly div:dcd iptc, 4 gruups of 39 hens each. The first group fed a basal diet containing 15.88% CP and 2750 Kcalfkg diet. The other groL ps (2; 3 and 4) fed the basal diet supplemented with 120 mg Flavomycin/kg diet; 1.0 g Dinaferm®/Kg diet and 1.0 g Bio- nutra®fkg diet. respectively. Salam hens were recorded significantly (P< 0.05) higher egg production and egg number than those of Mandarah ones from 29-36 and 25-40 wks for egg production and from 29-36 wks for egg number. Flavc mycin treatment had the hi~hest (P<O.05 or 0.01) values of egg production and egg rurnber followed by Bio-nutra and Dinaferm® groups during all the experimental periods Egg weight and egg mass were significaniiy (P<0.05) increased in Salam hens vs. those of Mandarah ones. except egg weight through 33-36 wks. Similar egg weight:; were observed in the different expenrnental treatments. While egg mass in birds reated with Flavomycin or Eio- nutra® was significantly (P<0.05 or 0.01) higher tha 1 that of Dinaferm® during 33-40 wks. Yolk and shell weights and shell thickne: s did not show any significant difference due to strain or treatment effects. excepl for shell thickness in Mandarah birds that had higher (P<0.05) shell thickness than hat of Salam ones. Salam birds treated with Bio-nutra" had higher values of shell t-uckness vs. the control group. Fertility and hatchability percentages were significantly (P<0.05) higher in Mandarah strain than those of Salam one. while, chicks' weight at hatchin~ was signifiCcntly (P<0.05) lower in Mandarah hens. Hens treated with Bio-nutra had the higo.st percenta\1es of fertility and hatchability (P<0.01). Mean,vhile. birds fed Flavornycm and Dinaferm were of lower percentages. Chicks weight ,\Id not differed significantly due to the dietary treatment. The two strains had similar values of feed consumption during 33-40 "J~~. while. feed consumption and feed efficiency were significantly (P<O 05) better for Salam strain than Mandarah one during the other periods of the experiment. Feed consumption of treated groups was significantly (P<O.05) increased than that of the control. Birds treated with Havornycm or Bio-nutra" had the best values of feed effioency. The interaction effects (strain with treatments) were insignificant for previous traits. except for egg weight during 29-32 wks and shell thickness. which were significant (P<0.05). Salam hens had slightly higher values of di ]estibility coefficients for the all nutnents than those of Mandarah hens. The supplementation of performance | ||||
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