Wickramasuriya Samiru Sudharaka, Macelline Shemil Priyan, Kim Eunjoo, Cho Hyun Min, Shin Taeg Kyun, Yi Young Joo, Jayasena Dinesh D, Lee Sung-Dae, Jung Hyun Jung, Heo Jung Min
Department of Animal Science and Biotechnology, Chungnam National University, Daejeon 34134, Korea.
Department of Animal Science, Uva Wellassa University, Badulla 90000, Sri Lanka.
Asian-Australas J Anim Sci. 2020 Feb;33(2):313-322. doi: 10.5713/ajas.19.0199. Epub 2019 Jul 1.
An experiment was conducted to investigate the response of laying hens fed corn distiller's dried grains with solubles (DDGS) that are naturally contaminated with deoxynivalenol (DON).
One hundred and sixty 52-week-old Lohmann Brown Lite hens were randomly allotted to five dietary treatments with 8 replicates per treatment. The dietary treatments were formulated to provide a range of corn DDGS contaminated with DON from 0% to 20% (i.e., 5% scale of increment). All laying hens were subjected to the same management practices in a controlled environment. Body weight, feed intake and egg production were measured biweekly for the entire 8-week experiment. The egg quality was measured biweekly for 8 weeks. On weeks 4 and 8, visceral organ weights, blood metabolites, intestinal morphology, and blood cytokine concentrations were measured.
The inclusion of corn DDGS contaminated with DON in the diet did not alter (p> 0.05) the body weight, feed intake, hen-day egg production, egg mass and feed efficiency of the laying hens. No difference was found (p>0.05) in the egg quality of hens that were fed the dietary treatments. Furthermore, hens that were fed a diet containing corn DDGS contaminated with DON showed no change (p>0.05) in the visceral organ weights, the blood metabolites, and the cytokine concentrations. The crypt depth increased (p<0.05) as the amount of corn DDGS contaminated with DON increased. Proportionately, the villus height to crypt depth ratio of the laying hens decreased (p<0.05) with the increasing level of corn DDGS contaminated with DON in the diet.
The inclusion of corn DDGS contaminated with DON up to 20% in layer diets did not cause changes in egg production performance and egg quality, which indicates that DON is less toxic at the concentration of 1.00 mg DON/kg.
进行一项实验，以研究饲喂天然受脱氧雪腐镰刀菌烯醇（DON）污染的玉米干酒糟及其可溶物（DDGS）的蛋鸡的反应。
将160只52周龄的罗曼褐蛋鸡随机分配到五种日粮处理组，每组8个重复。日粮处理的配方旨在提供一系列受DON污染的玉米DDGS，含量从0%到20%（即增量为5%）。所有蛋鸡在可控环境中接受相同的管理措施。在整个8周的实验中，每两周测量一次体重、采食量和产蛋量。每两周测量一次蛋品质，持续8周。在第4周和第8周，测量内脏器官重量、血液代谢物、肠道形态和血液细胞因子浓度。
日粮中添加受DON污染的玉米DDGS不会改变（p>0.05）蛋鸡的体重、采食量、日产蛋量、蛋重和饲料效率。饲喂不同日粮处理的蛋鸡蛋品质未发现差异（p>0.05）。此外，饲喂含受DON污染玉米DDGS日粮的蛋鸡在内脏器官重量、血液代谢物和细胞因子浓度方面没有变化（p>0.05）。随着受DON污染的玉米DDGS量的增加，隐窝深度增加（p<0.05）。相应地，随着日粮中受DON污染的玉米DDGS水平的增加，蛋鸡的绒毛高度与隐窝深度之比降低（p<0.05）。
在蛋鸡日粮中添加高达20%受DON污染的玉米DDGS不会导致产蛋性能和蛋品质的变化，这表明在1.00 mg DON/kg的浓度下，DON的毒性较小。
