| 小麦-DDGS型饲粮中钙水平对京红蛋鸡产蛋后期产蛋性能、蛋品质的影响 |
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| 引用本文： | 杨露晴,张雄,刘国庆,张建云,赵丽红,马秋刚.小麦-DDGS型饲粮中钙水平对京红蛋鸡产蛋后期产蛋性能、蛋品质的影响[J].中国畜牧杂志,2021(1):123-126,132. |
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| 作者姓名： | 杨露晴 张雄 刘国庆 张建云 赵丽红 马秋刚 |
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| 作者单位： | ;1.中国农业大学动物科学技术学院动物营养学国家重点实验室 |
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| 基金项目： | 国家蛋鸡产业技术体系建设项目(CARS-40-K08)。 |
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| 摘 要： | 本试验旨在研究京红1号商品代蛋鸡产蛋后期在小麦-DDGS(玉米酒精糟及可溶物)型饲粮中钙的适宜需要量,在充分利用非常规饲料资源的同时为京红1号商品代蛋鸡营养标准的制定提供科学依据。试验采用360只52周龄京红1号商品代蛋鸡,随机分成4个处理,每个处理6个重复,每个重复15只鸡。试验基础饲粮为小麦-DDGS型日粮,各组钙水平分别为3.50%、3.89%、4.28%、4.67%。试验期6周。结果表明:与3.50%钙水平组相比,4.28%钙水平组料蛋比显著降低,而3.89%、4.28%、4.67%钙水平组间的料蛋比无显著差异;4.28%钙水平组的蛋壳厚度显著高于3.50%钙水平组,蛋黄颜色显著高于3.50%、3.89%钙水平组;不同钙水平对其他生产性能和蛋品质指标均无显著影响。饲粮钙水平和蛋壳厚度回归方程为y=-0.0528x^2+0.4668x–0.676(R^2=0.9862),据此方程计算得到日粮最佳钙水平为4.59%。结果提示,京红1号蛋鸡产蛋后期小麦-DDGS型饲粮中钙水平推荐量为4.28%~4.59%。
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| 关 键 词： | 钙 京红1号蛋鸡 小麦-DDGS日粮 产蛋性能 蛋品质 |
Effects of Dietary Calcium Level in Wheat-DDGS Diets on Egg Production Performance and Quality during Late Periods of Jinghong Laying Hens |
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| YANG Luqing,ZHANG Xiong,LIU Guoqing,ZHANG Jianyun,ZHAO Lihong,MA Qiugang.Effects of Dietary Calcium Level in Wheat-DDGS Diets on Egg Production Performance and Quality during Late Periods of Jinghong Laying Hens[J].Chinese Journal of Animal Science,2021(1):123-126,132. |
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| Authors: | YANG Luqing ZHANG Xiong LIU Guoqing ZHANG Jianyun ZHAO Lihong MA Qiugang |
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| Institution: | ,State Key Laboratory of Animal Nutrition,College of Animal Science and Technology,China Agricultural University |
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| Abstract: | The study aimed to investigate the appropriate level of calcium in the wheat-DDGS diet during the late laying period of Jinghong commercial laying hens, so as to provide scientific basis for the establishment of nutritional standards for Jinghong commercial laying hens. A toal of 360 52-week-old Jinghong 1 laying hens were allotted randomly to one of 4 treatments with 6 replicates of 15 hens per replicate. The wheat-DDGS basic diet was used for 6 weeks, with calcium levels of 3.50%, 3.89%, 4.28% and 4.67% for each group, respectively. Results showed that: compared with 3.50% and 4.28% group had lower feed:egg ratio(P<0.05), no significance was found in the feed:egg ratio among 3.89%, 4.28% and 4.67% groups; 4.28% group had higher shell thickness than 3.50% group(P<0.05), and had higher yolk color than 3.50% and 3.89% groups(P<0.05); There was no significant influence in any other laying performance and egg quality indices among four groups; The regression equation of dietary calcium level and eggshell thickness was y=-0.052 8 x2+0.466 8 x–0.676(R2=0.986 2), according to the equation, the optimal calcium level was 4.59%. Therefore, the optimal dietary calcium level in the wheat-DDGS diet was 4.28%～4.59% for Jinghong laying hens during the late laying period. |
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| Keywords: | Calcium Jinghong laying hens Wheat-DDGS diets Laying performance Egg quality |
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