添加25-羟基维生素D、紫外线及其互作对肉鸡生产性能、骨骼特征和某些行为的影响

IF 3.5 2区 农林科学 Q1 AGRICULTURE, MULTIDISCIPLINARY Annals of Agricultural Science Pub Date : 2022-06-01 DOI:10.1016/j.aoas.2022.05.002
S.A. El-Safty , A. Galal , G.M. El-Gendi , Nafisa A. Abd El-Azeem , M.A. Ghazaly , A.Y.M. Abdelhady
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引用次数: 2

摘要

本试验旨在研究饲粮中添加25-羟基维生素D (25-OH-D3)和紫外光对肉仔鸡一些经济性状(如体重、饲料消耗、饲料转化率、骨骼测量和行为方面)的影响。选取360只1日龄雏鸡,随机分为4个处理(6个栏/处理,15只鸡/栏)。试验采用2 × 2因子设计。两个光源;发光二极管(LED)或紫外线B (UVB)和两个25-OH-D3水平(0水平作为控制和300克/吨)。处理分布如下:处理1 (25-OH-D3 300 g/t的LED);治疗2 (LED +对照饮食);治疗3 (UVB + 25-OH-D3);治疗4 (UVB +对照饮食)。主要结果显示,与LED组相比,使用UVB灯对销售年龄体重有积极影响(1.985 vs 1.939)。无论光源如何,日粮中添加25-OH-D3对体重都有积极影响,尤其是28日龄和35日龄。累积采食量方面,T2组和T3组的采食量均高于其他组,且差异极显著。除了饮食影响外,与UVB鸟类相比,LED鸟类消耗的饲料略多。T3和T4组的H/L比均较其他组最低且显著。值得注意的是,与LED鸟相比,UVB鸟的H/L比更低。根据目前的研究结果,在UVB光下饲养的肉鸡具有较低的应激敏感性和恐惧反应。综上所述,UVB光和维生素25-OH-D3在饲粮中对大多数性状具有增效和协同作用。
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Effect of 25-hydroxyvitamin D supplementation, ultraviolet light and their interaction on productive performance, bone characteristics, and some behavioral aspects of broiler chicks

This trial was planned to study the impact of dietary 25-hydroxyvitamin D (25-OH-D3) and ultraviolet light on some economical characteristics of broiler chicks (e.g., body weight, feed consumption, feed conversion ratio, bone measurements, and behavioral aspects). A total of 360 one-day-old chicks were randomly divided into four treatments (6 pens/treatment with 15 birds/pen). The experiment was laid in a 2 × 2 factorial design. Two light sources; Light-emitting diode (LED) or ultraviolet light B (UVB) and two 25-OH-D3 levels (0 level as control and 300 g/ton). The distribution of treatments was as follows: Treatment 1 (LED with 300 g/ton 25-OH-D3); Treatment 2 (LED with control diet); Treatment 3 (UVB with 25-OH-D3); Treatment 4 (UVB with control diet). The main results revealed that using UVB lamps had a positive effect on body weight at the marketing age compared to the LED group (1.985 vs 1.939). Regardless of the light source, adding 25-OH-D3 to the ration had a positive effect on body weight, especially at 28 and 35 days of age. Regarding cumulative feed intake, both T2 and T3 groups respectively consumed more feed compared to others, the highly significant difference was observed among them. Apart from diet impact, LED birds consumed slightly more feed compared to UVB birds. Both T3 and T4 groups recorded the lowest and significant figures of H/L ratio compared to the rest groups. It is interested to note that UVB birds had a lower H/L ratio compared to LED ones. According to the current findings, broilers reared under UVB light had lower stress susceptibility and fear responses. In general, results obtained revealed that there was an added value and synergetic actions when using UVB light and vitamin 25-OH-D3 in diets for most studied traits.

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来源期刊
Annals of Agricultural Science
Annals of Agricultural Science AGRICULTURE, MULTIDISCIPLINARY-
CiteScore
12.60
自引率
0.00%
发文量
18
审稿时长
33 days
期刊介绍: Annals of Agricultural Sciences (AOAS) is the official journal of Faculty of Agriculture, Ain Shams University. AOAS is an open access peer-reviewed journal publishing original research articles and review articles on experimental and modelling research at laboratory, field, farm, landscape, and industrial levels. AOAS aims to maximize the quality of the agricultural sector across the globe with emphasis on the Arabian countries by focusing on publishing the high-quality applicable researches, in addition to the new methods and frontiers leading to maximizing the quality and quantity of both plant and animal yield and final products.
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