饲粮大豆油添加水平对产蛋末期蛋鸭屠宰性能、产蛋性能、蛋品质及血清生化指标的影响

李闯; 张翔; 黄璇; 张旭; 戴求仲; 蒋桂韬

doi:10.3969/j.issn.1006-267x.2020.09.055

动物营养学报 >

2020 , Vol. 32 >Issue 9: 4441 - 4448

DOI: https://doi.org/10.3969/j.issn.1006-267x.2020.09.055

研究简报 SHORT COMMUNICATION

饲粮大豆油添加水平对产蛋末期蛋鸭屠宰性能、产蛋性能、蛋品质及血清生化指标的影响

李闯 ,
张翔 ,
黄璇 ,
张旭 ,
戴求仲 ,
蒋桂韬

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1. 湖南省畜牧兽医研究所, 长沙 410131;
2. 湖南省家禽安全生产工程技术研究中心, 长沙 410128;
3. 延安大学医学院, 延安 716000

李闯(1985-),男,河南西华人,助理研究员,硕士,从事家禽营养与生产研究。E-mail:349969903@qq.com

收稿日期: 2020-03-02

网络出版日期: 2020-09-17

基金资助

现代农业产业技术体系建设专项资金（CARS-42-21）；湖南省重点研发计划（2017NK2163）；湖南畜禽安全生产协同创新中心专项资金（CICAPS）

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Effects of Dietary Soybean Oil Supplemental Level on Slaughter Performance, Laying Performance, Egg Quality and Serum Biochemical Indices of Laying Ducks during Last Laying Period

LI Chuang ,
ZHANG Xiang ,
HUANG Xuan ,
ZHANG Xu ,
DAI Qiuzhong ,
JIANG Guitao

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1. Hunan Institute of Animal Science and Veterinary Medicine, Changsha 410131, China;
2. Hunan Engineering Research Center of Poultry Production Safety, Changsha 410128, China;
3. Medical College, Yan'an University, Yan'an 716000, China

Received date: 2020-03-02

Online published: 2020-09-17

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摘要

本试验旨在研究饲粮大豆油添加水平对产蛋末期蛋鸭屠宰性能、产蛋性能、蛋品质及血清生化指标的影响，以探讨产蛋末期蛋鸭饲粮添加大豆油能否稳定生产性能和提高屠宰性能。试验选用500日龄健康、体重约1.90 kg的临武鸭雌鸭120只，随机分成5组，每组4个重复，每个重复6只鸭。对照组饲喂基础饲粮，试验组饲粮在基础饲粮中分别额外添加1.00%、2.00%、3.00%和4.00%的大豆油。试验期28 d。结果表明：1）饲粮大豆油添加水平对产蛋末期蛋鸭半净膛率、全净膛率、腹脂率、胸肌率和腿肌率均无显著影响（P>0.05）。2.00%添加组屠宰率最高，显著高于对照组和4.00%添加组（P<0.05）。2）饲粮大豆油添加水平对产蛋末期蛋鸭平均蛋重、合格蛋率、日产蛋重和料蛋比均未无显著影响（P>0.05）。对照组产蛋率和平均日采食量显著或极显著高于3.00%和4.00%添加组（P<0.05或P<0.01），与1.00%和2.00%添加组无显著差异（P>0.05）。3）饲粮大豆油添加水平对产蛋末期蛋鸭蛋品质指标均无显著影响（P>0.05）。4）2.00%、3.00%和4.00%添加组血清甘油三酯和葡萄糖含量显著或极显著高于对照组（P<0.05），4.00%添加组血清总胆固醇含量显著高于对照组和1.00%添加组（P<0.05）。由此可见，饲粮中添加1.00%、2.00%大豆油对产蛋末期蛋鸭产蛋性能和蛋品质无不良影响，但大豆油添加水平为2.00%时能提高蛋鸭的屠宰性能。在生产实践中可在产蛋末期蛋鸭饲粮中添加2.00%的大豆油。

关键词： 产蛋末期蛋鸭; 大豆油; 屠宰性能; 产蛋性能; 血清生化指标

本文引用格式

李闯 , 张翔 , 黄璇 , 张旭 , 戴求仲 , 蒋桂韬 . 饲粮大豆油添加水平对产蛋末期蛋鸭屠宰性能、产蛋性能、蛋品质及血清生化指标的影响[J]. 动物营养学报, 2020 , 32(9) : 4441 -4448 . DOI: 10.3969/j.issn.1006-267x.2020.09.055

Abstract

The objective of this study was to investigate the effects of dietary soybean oil supplemental level on slaughter performance, laying performance, egg quality and serum biochemical indices of laying ducks during last laying period, and to explore whether soybean oil added to the diet of laying ducks during last laying period could stabilize production performance and improve slaughter performance. One hundred and twenty 500-day-old female Linwu ducks with body weight of 1.90 kg were randomly allocated to 5 groups with 4 replicates per group and 6 ducks per replicate. Ducks in the control group was fed a basal diet, while others in experimental groups were fed basal diets supplemented with 1.00%, 2.00%, 3.00% and 4.00% soybean oil respectively. The experiment lasted for 28 days. The results showed as follows:1) dietary soybean oil supplemental level had no significant effects on the semi-eviscerated percentage, eviscerated percentage, abdominal fat percentage, breast muscle percentage and leg muscle percentage of laying ducks during last laying period (P>0.05). The dressing percentage of 2.00% supplemental group was the highest, and significantly higher than that of the control group and 4.00% supplemental group (P<0.05). 2) Dietary soybean oil supplemental level had no significant effects on the average egg weight, qualified rate of egg, daily egg yield and feed/egg of laying ducks during last laying period (P>0.05). The laying rate and average daily feed intake of the control group were significantly higher than those of 3.00% and 4.00% supplemental groups (P<0.05 or P<0.01), but had no significant difference with 1.00% and 2.00% supplemental groups (P>0.05). 3) Dietary soybean oil supplemental level had no significant effects on the egg quality indices of laying ducks during last laying period (P>0.05). 4) The contents of triglyceride and glucose in serum of 2.00%, 3.00% and 4.00% supplemental groups were significantly higher than those of the control group (P<0.05 or P<0.01), and the serum total cholesterol content of 4.00% supplemental group was significantly higher than that of the control group and 1.00% supplemental group (P<0.05). In conclusion, dietary supplemented with 1.00% and 2.00% soybean oil have no adverse effects on laying performance and egg quality of laying ducks during last laying period, but dietary 2.00% soybean oil supplemental level can improve the slaughter performance of laying ducks. In production practice, it can supplement with 2.00% soybean oil in diets of laying ducks during last laying period.

Key words： laying ducks during last laying period; soybean oil; slaughter performance; laying performance; serum biochemical indices

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