饲粮锌添加水平对产蛋期种鹅繁殖性能、蛋品质及血清生化、抗氧化、激素指标的影响

doi:10.3969/j.issn.1006-267x.2019.05.021

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摘要本试验旨在研究饲粮锌添加水平对产蛋期种鹅繁殖性能、蛋品质及血清生化、抗氧化、激素指标的影响。选择34周龄体况相近的种鹅120只，随机分为6组，每组4个重复，每个重复5只鹅（1公4母）。各组（Ⅰ~Ⅵ组）饲粮锌添加水平分别为0、25、50、75、100、125 mg/kg。预试期1周，正试期10周。结果表明：1）Ⅲ、Ⅳ、Ⅴ组种蛋种合格率显著高于Ⅰ组（P<0.05），Ⅳ、Ⅴ组种蛋受精率显著或极显著高于Ⅰ、Ⅱ、Ⅵ组（P<0.05或P<0.01），Ⅳ、Ⅴ组种蛋孵化率显著或极显著高于其他各组（P<0.05或P<0.01），Ⅲ、Ⅳ组健雏率显著或极显著高于其他各组（P<0.05或P<0.01）。2）饲粮锌添加水平对蛋重、蛋形指数、蛋比重、蛋壳强度、蛋壳厚度、蛋黄比率、蛋白高度影响不显著（P>0.05）。Ⅲ组蛋黄颜色最高，显著高于Ⅰ组（P<0.05）；Ⅳ组哈氏单位最高，显著或极显著高于Ⅰ、Ⅱ、Ⅵ组（P<0.05）。3）饲粮锌添加水平对血清白蛋白含量、谷草转氨酶活性影响不显著（P>0.05）。Ⅰ组血清总蛋白含量显著低于其他各组（P<0.05），Ⅲ组血清碱性磷酸酶活性显著高于Ⅰ、Ⅱ、Ⅵ组（P<0.05）。4）饲粮锌添加水平对血清丙二醛含量及总超氧化物歧化酶、谷胱甘肽过氧化物酶活性影响不显著（P>0.05）。Ⅲ、Ⅳ组血清总抗氧化能力显著高于Ⅵ组（P<0.05）。5）饲粮锌添加水平对血清胰岛素样生长因子-Ⅰ、雌二醇、睾酮含量影响不显著（P>0.05）。Ⅳ组血清生长激素含量最高，显著高于Ⅰ、Ⅱ、Ⅵ组（P<0.05）。由此可见，饲粮中适宜添加水平锌对产蛋期种鹅繁殖性能、血清指标、蛋黄颜色和哈氏单位有一定影响；建议种鹅产蛋期饲粮中锌添加水平为65~70 mg/kg。

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关键词 ：产蛋期, 种鹅, 锌, 繁殖性能, 蛋品质, 血清指标

Abstract：This experiment was conducted to study the effects of dietary zinc supplemental level on reproductive performance, egg quality and serum biochemical, antioxidant and hormone indices of breeding geese during laying period. A total of 120 thirty-four-week-old breeding geese with the similar body condition were randomly divided into 6 groups with 4 replicates per group and 5 geese per replicate (1 male 4 female). Geese in the 6 groups (groups Ⅰ to Ⅵ) were fed experimental diets supplemented with 0, 25, 50, 75, 100 and 125 mg/kg. The pre-experimental period lasted for 1 week, and the experimental period lasted for 10 weeks. The results showed as follows: 1) the hatching egg qualified rate of groups Ⅲ, Ⅳ and Ⅴ was significantly higher than that of group Ⅰ (P<0.05), the hatching egg fertilization rate of groups Ⅳ and Ⅴ was significantly higher than that of groups Ⅰ, Ⅱ and Ⅵ (P<0.05 or P<0.01), the hatching egg hatching rate of groups Ⅳ and Ⅴ was significantly higher than that of other groups (P<0.05 or P<0.01), the healthy rate of groups Ⅲ and Ⅳ was significantly higher than that of other groups (P<0.05 or P<0.01). 2) Dietary zinc supplemental level had no significant effects on egg weight, egg shape index, egg proportion, eggshell strength, eggshell thickness, yolk ratio and protein height (P>0.05). The yolk color of group Ⅲ was the highest, and significantly higher than that of group Ⅰ (P<0.05); the Haugh unit of group Ⅳ was the highest, and significantly higher than that of groups Ⅰ, Ⅱ and Ⅵ (P<0.05). 3) Dietary zinc supplemental level had no significant effects on serum albumin content and glutamic oxaloacetic transaminase activity (P>0.05). The serum total protein content of group Ⅰ was significantly lower than that of other groups (P<0.05), the serum alkaline phosphatase activity of group Ⅲ was significantly higher than that of groups Ⅰ, Ⅱ and Ⅵ (P<0.05). 4) Dietary zinc supplemental level had no significant effects on serum malondialdehyde content and total superoxide dismutase and glutathione peroxidase activities (P>0.05). The serum total antioxidant capacity of groups Ⅲ and Ⅳ was significantly higher than that of group Ⅵ (P<0.05). 5) Dietary zinc supplemental level had no significant effects on the contents of insulin-like growth factor-Ⅰ, estradiol and testosterone in serum(P>0.05). The serum growth hormone content of group Ⅳ was the highest, and significantly higher than that of groups Ⅰ, Ⅱ and Ⅵ (P<0.05). In conclusion, dietary suitable zinc supplemental level has effects on reproductive performance, serum indices, yolk color and Haugh unit of breeding geese during laying period, it is suggested that the dietary zinc supplemental level of breeding geese during laying period is 65 to 70 mg/kg.

Key words： breeding geese laying period zinc reproductive performance egg quality serum indices

收稿日期: 2018-10-15

PACS:

S835

基金资助:

国家水禽产业技术体系专项基金（CARS-43-11）

通讯作者: 王宝维,教授,硕士生导师,E-mail:wangbw@qau.edu.cn E-mail: wangbw@qau.edu.cn

作者简介: 石静(1992-),女,山东菏泽人,硕士研究生,研究方向为家禽营养与保健。E-mail:1261222483@qq.com

引用本文:

石静, 王宝维, 葛文华, 张名爱, 岳斌, 代国滔, 王贺飞, 隋福良. 饲粮锌添加水平对产蛋期种鹅繁殖性能、蛋品质及血清生化、抗氧化、激素指标的影响[J]. 动物营养学报, 2019, 31(5): 2144-2151.
SHI Jing, WANG Baowei, GE Wenhua, ZHANG Ming'ai, YUE Bin, DAI Guotao, WANG Hefei, SUI Fuliang. Effects of Dietary Zinc Supplemental Level on Reproductive Performance, Egg Quality and Serum Biochemical, Antioxidant and Hormone Indices of Breeding Geese during Laying Period. Chinese Journal of Animal Nutrition, 2019, 31(5): 2144-2151.

链接本文:

http://www.chinajan.com/CN/10.3969/j.issn.1006-267x.2019.05.021 或 http://www.chinajan.com/CN/Y2019/V31/I5/2144

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