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자료유형
학술저널
저자정보
저널정보
한국식품영양과학회 Journal of Food Science and Nutrition Journal of Food Science and Nutrition Vol.1 No.2
발행연도
1996.12
수록면
239 - 243 (5page)

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Three hundred and twenty-four 1 day old chicks were used to determine the effects of fat source and energy to protein ratio on growth performance, carcass composition and the efficiency of nutrient utilization. Chicks were assigned, in a completely randomized design, to a 3 * 3 factorial arrangement of treatments. Chicks received one of three fat sources(no fat, tallow, com oil) and one of three energy to protein ratios(16, 14 and 12kcal ME/g CP). All diets were formulated to be isocaloric(3.2Mcal ME/㎏ diets) using published ME values for the diet ingredients. Addition of fat to the diet increased ADG, average daily feed intake, and gain to feed. Chicks fed diets containing fat had increased percentage body DM and ether extract(EE), but percentage CP was not different. Chicks fed diets containing fat had increased efficiency of protein and energy deposition. Addition of fat as either tallow or com oil yielded similar results. Reducing the energy to protein ratio of the diet did not affect ADG or gain to feed, but tended to decrease average daily feed intake(p=0.08), as well as resulting in linear(p<0.05) reductions in body percentage DM, EE and also total EE. Increasing the energy to protein ratio did not affect percentage or total body CP. Adding fat to poultry diets improved growth performance and the efficiency of growth of chicks. Decreasing the energy to protein ratio did not affect growth performance, but reduced EE in the body of chicks.

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Abstract

INTRODUCTION

MATERIALS AND METHODS

RESULTS AND DISCUSSION

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