Premathilaka Kumudu Thakshila, Nawarathne Shan Randima, Nambapana Maleeka Nadeemale, Macelline Shemil Priyan, Wickramasuriya Samiru Sudharaka, Ang Li, Jayasena Dinesh Darshaka, Heo Jung Min
Department of Animal Science, Uva Wellassa University, Badulla 90000, Sri Lanka.
Department of Animal Science and Biotechnology, Chungnam National University, Daejeon 34134, Korea.
J Anim Sci Technol. 2020 Nov;62(6):824-839. doi: 10.5187/jast.2020.62.6.824. Epub 2020 Nov 30.
The current study was aimed to examine the effect of partial or complete replacement of fishmeal (FM) with fermented soybean meal (FSBM) on growth performance, fecal composition, and meat quality in broiler chickens. A total number of 240 one-day-old broiler chicks were randomly allotted into four dietary treatments with six replications and ten birds per one pen. Dietary treatments were followed as; 1) Diet incorporated with 4% FM without FSBM (Control), 2) Diet incorporated with 3% FM and 2% FSBM (FSBM2), 3) Diet incorporated with 2% FM and 3% FSBM (FSBM3) and 4) Diet incorporated with 4% FSBM without FM (FSBM4). Body weight and feed intake were recorded weekly for 35 days of the experimental period. Moreover, fecal samples were collected to evaluate moisture, ash, nitrogen, calcium and phosphorus content on day 21 post-hatch. On day 35, two birds were sacrificed from each pen to measure meat quality parameters and visceral organ weights. Results revealed that, no dietary treatment effect ( > 0.05) was observed either in both body weight or average daily gain of broilers within the entire experimental period while broilers fed FSBM2 increased ( < 0.05) average daily feed intake by 10.07% whereas FSBM4 improved ( < 0.05) feed efficiency ratio by 8.45% compared to birds fed other dietary treatments on day 7 post-hatch. Besides, birds fed FSBM3 obtained the improved ( < 0.05) feed conversion ratio over the birds fed control diet by 7.51% from hatch to day 35 post-hatch (1.60 vs. 1.73). Nevertheless, no difference ( > 0.05) was detected on visceral organ weight, proximate composition and physicochemical characteristics of meat while broilers offered FSBM4 obtained the lowest ( < 0.05) calcium and phosphorous in faces (2.27% and 1.21% respectively) over those offered control feed and other FSBM treatments. In conclusion, FSBM would be a better replacement for ousting FM partially or completely in broiler diet as it did not impair the growth performance and meat quality while reducing the calcium and phosphorous excretion in broilers for 35 days post-hatch.
本研究旨在探讨用发酵豆粕（FSBM）部分或完全替代鱼粉（FM）对肉鸡生长性能、粪便成分和肉质的影响。将240只1日龄肉鸡随机分为4种日粮处理组，每组6个重复，每栏10只鸡。日粮处理如下：1）含4%鱼粉且不含发酵豆粕的日粮（对照组）；2）含3%鱼粉和2%发酵豆粕的日粮（FSBM2）；3）含2%鱼粉和3%发酵豆粕的日粮（FSBM3）；4）含4%发酵豆粕且不含鱼粉的日粮（FSBM4）。在35天的试验期内每周记录体重和采食量。此外，在孵化后第21天收集粪便样本，以评估水分、灰分、氮、钙和磷含量。在第35天，从每个栏中宰杀2只鸡，以测量肉质参数和内脏器官重量。结果显示，在整个试验期内，各日粮处理对肉鸡体重或平均日增重均无显著影响（P>0.05），但与其他日粮处理组相比，饲喂FSBM2的肉鸡在孵化后第7天平均日采食量增加了10.07%（P<0.05），而饲喂FSBM4的肉鸡饲料效率提高了8.45%（P<0.05）。此外，从孵化到孵化后第35天，饲喂FSBM3的肉鸡饲料转化率比饲喂对照日粮的肉鸡提高了7.51%（1.60对1.73，P<0.05）。然而，在肉质的内脏器官重量、近似成分和理化特性方面未检测到差异（P>0.05），而饲喂FSBM4的肉鸡粪便中钙和磷含量最低（分别为2.27%和1.21%）（P<0.05），低于饲喂对照饲料和其他FSBM处理的肉鸡。总之，发酵豆粕可以较好地替代肉鸡日粮中的鱼粉，部分或完全替代不会损害肉鸡的生长性能和肉质，同时还能减少孵化后35天内肉鸡钙和磷的排泄量。
