Korean Journal of Poultry Science (한국가금학회지)

The Korean Society of Poultry Science (한국가금학회)
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Effect of Dietary Energy Levels for Egg-type Growing Puilets on Pullet Growth, Nutrient Consumption and Subsequent Laying Performance

난용계 육성기 사료의 에너지 수준이 육성계의 성장 및 영양소 섭취량과 산란능력에 미치는 영향

  • Published : 1994.12.01
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Abstract

Three dietary ME levels of 3,200, 2,900 and 2,600 kcal /kg in the same 13% single-stage low protein diet were compared to evaluate the effect of ME levels of grower diets on egg-type pullet growth and subsequent laying performance. As the ME levels of grower diets decreased, cumulative feed and protein consumptions increased(P<0.05), however, the ME intake and body weight at 18 wk of age decreased(P<0.05). Grower feed cost decreased as the dietary ME level was decreased, but no significant difference was found among dietary ME levels of grower diets. During the laying period, sexual maturity, hen-day egg production and average egg weight were not significantly affected by the ME levels of grower diet, however, daily feed intake and feed required per egg decreased as the dietary ME level of grower diet was reduced(P<0.05). Results of this study indicate that pullets can be reared on the low ME diet of 2,600 kcal /kg and it would he economical to utilize the low energy diet during the growing period when they are reared on a 13% single-stage low protein diet.

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References

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