摘要
试验旨在研究1,6-二磷酸果糖钙对海兰褐蛋鸡生产性能、蛋品质、血清生化指标和免疫指标的影响。试验选择800只健康、产蛋率相近的380日龄海兰褐蛋鸡,随机分成4组,每组20个重复,每个重复10笼,每笼1只鸡。对照组、低剂量组、中剂量组和高剂量组分别在基础日粮中添加0mg/kg、100mg/kg、200mg/kg和300mg/kg1,6-二磷酸果糖钙,进行为期9周的试验。结果显示:与对照组相比,中、高剂量组产蛋率显著提高(P<0.05),且与1,6-二磷酸果糖钙的添加量呈二次曲线关系(P<0.05);低、中和高剂量组破蛋率显著降低(P<0.05)。中、高剂量组蛋黄颜色和蛋壳强度显著提高(P<0.05),蛋壳强度与1,6-二磷酸果糖钙添加量呈二次曲线关系(P=0.024);低、中和高剂量组的蛋壳比例显著提高(P<0.05),且随1,6-二磷酸果糖钙添加量的增加呈线性升高(P=0.034)。低、中和高剂量组谷丙转氨酶活性显著降低(P<0.05);低、中剂量组总胆固醇含量显著降低(P<0.05),且总胆固醇含量与1,6-二磷酸果糖钙添加量呈二次曲线关系(P=0.004);中、高剂量组高密度脂蛋白含量显著提高(P<0.05);中剂量组低密度脂蛋白含量显著降低(P<0.05),且低密度脂蛋白含量与1,6-二磷酸果糖钙添加量呈二次曲线关系(P=0.036)。低、中和高剂量组的IgM和IgA含量均显著增加(P<0.05),其中IgA含量随1,6-二磷酸果糖钙添加量的增加呈线性升高(P=0.047)。分别对产蛋率、蛋壳强度、总胆固醇含量和低密度脂蛋白含量进行二次曲线方程拟合表明,当1,6-二磷酸果糖钙添加量分别为179、186、243和268mg/kg时,产蛋率、蛋壳强度、总胆固醇含量和低密度脂蛋白含量分别达到最佳。研究提示:日粮中添加200和300mg/kg1,6-二磷酸果糖钙较佳,基于产蛋率、蛋壳强度、总胆固醇含量和低密度脂蛋白含量考虑,适宜的1,6-二磷酸果糖钙添加量分别为179、186、243和268mg/kg。
The aim of the experiment was to study the effect of calcium fructose-1,6-diphosphate on production mance,egg quality,serum biochemical indices and immune indexes of Hy-Line Brown laying hen.A total of 800380-day-age healthy Hy-Line Brown laying hens with similar egg production rate were randomly divided into 4 treatment groups with 10 replicates per treatment,20 cages per replicate and 1 hen per cage.The control group was fed with the basal diet.Low-dose group,me-dium-dose group and high-dose group were fed basal diet supplemented with 100 mg/kg,200 mg/kg and 300 mg/kg calcium fructose-1,6-diphosphate,respectively.The experiment lasted for 9 weeks.The results showed that compared with the control group,the laying rate of laying hens in medium-dose group and high-dose group was significantly increased(P<0.05),and there was a quadratic relationship between the laying rate and calcium fructose-1,6-diphosphate(P<0.05).The egg breaking rate of low-dose group,medium-dose group and high-dose group were significantly decreased(P<0.05).The yolk color and eggshell strength of medium-dose group and high-dose group were significantly increased(P<0.05).There was a quadratic relationship between eggshell strength and calcium fructose-1,6-diphosphate supplementation(P=0.024).The proportion of eggshell in lowdose group,medium-dose group and high-dose group were significantly increased(P<0.05)and was increased linearly with the increase of calcium fructose-1,6-diphosphate supplemental level(P=0.034).Glutamic-pyruvic transaminase in low-dose group,mediumdose group and high-dose group were significantly decreased(P<0.05).The total cholesterol content of low-dose group and medium-dose group was significantly decreased(P<0.05)and there was a quadratic relationship between total cholesterol content and calcium fructose-1,6-diphosphate supplemental level(P=0.004).The high density lipoprotein content in medium-dose group and high-dose group were significantly increased(P<0.05).The content of low density lipoprotein in medium-dose group
作者
陈晓春
汤亦文
黄小权
张磊
CHEN Xiaochun;TANG Yiwen;HUANG Xiaoquan;ZHANG Lei(College of Biotechnology and Pharmaceutical Engineering,Nanjing Tech University,Nanjing,Jiangsu 211816;Nanjing Biotogether Co.,Ltd.,Nangjing,Jiangsu 211806)
出处
《中国家禽》
北大核心
2024年第5期32-37,共6页
China Poultry
基金
国家自然科学基金项目(21606128)。
关键词
海兰褐蛋鸡
1
6-二磷酸果糖钙
生产性能
蛋品质
血清生化指标
免疫指标
Hy-Line Brown laying hen
calcium fructose-1,6-diphosphate
production performance
egg quality
serum biochemical indices
immune indexes
