水印蛋评分体系的建立及螯合微量元素和抗氧化剂对水印蛋发生率的影响

发布时间：2018-10-31 08:30

【摘要】：本研究通过水印蛋和蛋壳透光性的相关性建立了评估水印蛋严重程度的评分体系,并结合该体系研究螯合微量元素和抗氧化剂对蛋鸡水印蛋发生率及生产性能的影响。试验选择有较高水印蛋发生率的1 600只34周龄蛋鸡,随机分为4组,分别为对照组、螯合微量元素组、螯合微量元素+抗氧化剂组和抗氧化剂组,在第37周统计采食量、产蛋率等生产性能指标,并在每个重复随机抽取15个鸡蛋测定蛋壳厚度和强度,从每个重复随机抽取30枚鸡蛋用水印蛋评分系统测定水印蛋的发生率及水印蛋评分。结果表明:螯合微量元素组与对照组相比极显著地降低了水印蛋的发生率和水印蛋评分(P0.01),螯合微量元素+抗氧化剂组与对照组相比显著降低了水印蛋的发生率和水印蛋评分(P0.05);抗氧化剂组与对照组相比水印蛋的发生率和水印蛋评分偏低(P0.05);各组对蛋鸡产蛋率、采食量、料蛋比、蛋壳厚度和强度均无显著影响(P0.05)。
[Abstract]:In this study, a scoring system for evaluating the severity of watermark eggs was established by the correlation between the transmittance of watermark eggs and eggshell, and the effects of chelating trace elements and antioxidants on the occurrence rate and production performance of watermarked eggs were studied. A total of 1,600 34-week-old laying hens were randomly divided into four groups: control group, chelate trace element antioxidant group and antioxidant group. The egg production performance index such as egg production rate and 15 eggs were selected randomly in each repeat to determine the thickness and strength of the egg shell. The incidence rate and the watermark egg score of the watermarked egg were measured by the watermarked egg scoring system for each repeated random extraction of 30 eggs. The results showed that the incidence of watermark egg and the score of watermark egg in chelate trace element group were significantly lower than those in control group (P0.01). Compared with the control group, the chelate trace element antioxidant group significantly decreased the incidence of watermark egg and the score of watermark egg (P0.05). The incidence of watermark egg and the score of watermark egg were lower in antioxidant group than in control group (P0.05), but there was no significant effect on laying rate, feed intake, feed / egg ratio, egg shell thickness and strength in each group (P0.05).
【作者单位】：诺伟司国际贸易(上海)有限公司;
【分类号】：S831.5

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