Oketch Elijah Ogola, Kim Yu Bin, Yu Myunghwan, Hong Jun Seon, Nawarathne Shan Randima, Heo Jung Min
Department of Animal Science and Biotechnology, Chungnam National University, Daejeon 34134, Korea.
J Anim Sci Technol. 2023 Mar;65(2):377-386. doi: 10.5187/jast.2022.e116. Epub 2023 Mar 31.
The effect of different commercially available bedding materials on the growth performance and carcass characteristics of ducks for 42 days was investigated. 336 one-day-old White-Pekin ducklings (60.48 ± 0.16 g) were randomly allocated into 24-floor pens with one of the three beddings namely i) coco peat, ii) rice husks, or iii) sawdust. 14 ducklings per pen and 8 replicate pens per bedding material were used. Birds were fed a starter diet from days 1-21 and a grower diet from days 22-42. Weekly growth performance evaluation was conducted for the average body weight, weight gains, daily feed intake, and feed conversion efficiency. One bird per pen was sacrificed on day 42 for the evaluation of carcass characteristics including the carcass, breast, and leg muscle percentages. Breast and leg muscle samples were then collected and analyzed for their proximate and pH values. Higher body weights (p < 0.05) were noticed with rice husks on day 42 only. Improved daily gains ( < 0.05) were also noticed for birds raised with rice husks over the entire period (days 1-42). Concerning feed intake, higher values ( < 0.05) were similarly noted with rice husks for the grower phase (days 22-42), and the entire experimental period (days 1-42). Marginally improved feed intake values were also noted with the use of rice husks as the bedding materials on day 42 ( = 0.092). Improved feed efficiency ( < 0.05) was noticed with rice husks on day 35, the grower period, and the entire 42-day period. However, no significant differences were noticed for most of the carcass characteristics that were evaluated. Nevertheless, higher ( < 0.05) pH values for the breast muscle were noticed with the use of coco peat and sawdust as the bedding. Conclusively, the bedding type could have a significant impact on the growth performance of ducks without adverse effects on carcass characteristics. The use of rice husks as bedding might be advantageous and is therefore recommended.
研究了42天内不同市售垫料对鸭生长性能和胴体特性的影响。336只1日龄的北京白鸭雏鸭(60.48±0.16克)被随机分配到24个地面饲养栏中,使用三种垫料之一,即:i)椰糠,ii)稻壳,或iii)锯末。每个饲养栏饲养14只雏鸭,每种垫料设置8个重复饲养栏。雏鸭在1至21天饲喂开食料,22至42天饲喂生长料。每周对平均体重、增重、日采食量和饲料转化效率进行生长性能评估。在第42天,每个饲养栏宰杀1只鸭,评估胴体特性,包括胴体、胸肌和腿肌百分比。然后采集胸肌和腿肌样本,分析其常规成分和pH值。仅在第42天发现使用稻壳的鸭体重较高(p<0.05)。在整个时期(1至42天),使用稻壳饲养的鸭日增重也有所提高(<0.05)。关于采食量,在生长阶段(22至42天)和整个实验期(1至42天),使用稻壳的鸭采食量同样较高(<0.05)。在第42天,使用稻壳作为垫料时,采食量也略有提高(=0.092)。在第35天、生长阶段和整个42天期间,使用稻壳的鸭饲料效率有所提高(<0.05)。然而,评估的大多数胴体特性没有显著差异。尽管如此,使用椰糠和锯末作为垫料时,胸肌的pH值较高(<0.05)。总之,垫料类型可能对鸭的生长性能有显著影响,而对胴体特性无不利影响。使用稻壳作为垫料可能具有优势,因此推荐使用。