卵用鶏の育成期における低リジン飼料給与の影響

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  • Influence of Feeding Low Lysine Diets during Growth of Chickens on Their Performance

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Low lysine diets chiefly composed of yellow corn and sesame meal were fed White Leghorn female chicks during 0-4 and 4-8 weeks of age, respectively. Lysine contents of low lysine diets fed the chicks 0-4 and 4-8 weeks old, were 0.6 and 0.4%.<br>The growth of chicks fed low lysine diets during 0-4 and 4-8 weeks of age, was restricted to about about 30 and 60% of control diet (yellow corn-soybean meal, lysine 1.0%). Both feed consumption and feed efficiency of chicks fed low lysine diets during 0-4 and 4-8 weeks of age, were also restricted to about 50 and 80% of control diet.<br>Feeding of low lysine diets during 0-4 weeks of age delayed sexual maturity about 10 days, but did not affect the subsequent egg production and egg quality.

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