Korean Journal of Poultry Science (한국가금학회지)

The Korean Society of Poultry Science (한국가금학회)
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Effects of Pelleting Layer Diets on Laying Hen Performance

산란계에 대한 펠렛사료의 급여효과

  • Published : 1997.03.01
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Abstract

Two experiments were carried out to determine the effects of pelleting layer diets on the laying perforrnance and nutrients utilizability, using either 50-wk-old(Experiment 1) or 80-wk-old (Experiment 2) layers. There was no effect of pelleting layer diets on hen-day egg production and average egg weight but decreased (P<0.05) feed conversion ratio(intake /egg weight) in both experiments. Although both egg specific gravity and eggshell thickness were not influenced by pelleting eggshell breaking strength was improved(P<0.05) only in Experiment 1. Utilizability of dietary fat was improved(P<0.05) by pelleting layer diets with no difference in other nutrients utilizability. There was no difference in the passage rate of mash and pelleted layer diets.

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References

  1. Official methods of analysis(15th ed.) AOAC
  2. Poultry Sci v.47 The effect of steam pelleting feed ingredients on chick performance: effect on phosphorus availibility, metabolizable energy value and carcass composition Bayley,H.S.;Summers,J.D.;Slinger,S.L.
  3. J Agric Sci v.55 The digestibility of mash and pellets by chicks Bolton,W.
  4. Poultry Sci v.41 The effect of pelleting on the nutritional value of ground soybeans for the chicks Carew,L.B.;Nesheim,M.C.
  5. Poultry Sci v.66 Research note : Effect of beak trimming on body weight and feed intake of egg-type pullets fed pellets or mash Denton,J.W.;Lott,B.D.;Branton,S.L.;Simmons,J.D.
  6. Animal Feed Technol v.51 Ingredient particle size and feed texture: effects on the performance of broiler chickens Hamilton,R.M.G.;Proudfoot,F.G.
  7. Can J Animal Sci v.75 Effects of ingredient particle size and feed form on the performance of leghorn hens Hamilton,R.M.G.;Proudfoot,F.G.
  8. Poultry Sci v.41 Effects of pelleting on the utilization of feed by the growing chicken Hussar,N.;Robblee,A.R.
  9. Poultry Sci v.41 Observations on eating patterns and rate of food passage of birds fed pelleted and unpelleted diets Jensen,L.S.;Merrill,L.H.;Reddy,C.V.;McGinnis,J.
  10. Poultry Sci v.64 The effect of pelleting the layer ration on egg size in early-housed brown-egg-type layers Kling,L.J.;Hawes,R.O.;Gerry,R.W.
  11. NFIA Nutrition Symposium-Energy and Fat Effect of feed processing on poultry performance and profit Pfaff,F.E.Jr.
  12. Statistics for Personal Computer SAS Institute
  13. Statistical Methods(7th ed) Snedecor,G.W.;Cockran,W.G.
  14. Animal Feed Sci Technol v.30 Effects of pelleting diets contaning sunflower meal on the performance of broiler chickens Zatari,I.M.;Sell,J.L.