Biesek Jakub, Banaszak Mirosław, Adamski Marek
Department of Animal Breeding and Nutrition, Faculty of Animal Breeding and Biology, UTP-University of Science and Technology in Bydgoszcz, Mazowiecka 28, 85-084 Bydgoszcz, Poland.
Animals (Basel). 2021 Apr 3;11(4):1015. doi: 10.3390/ani11041015.
The safety of production and the high quality of meat are important aspects of rearing poultry, especially when natural solutions are used. Because of the increasing popularity of duck meat, the aim of the present study was to assess the effect of a diet with an inclusion of zeolite on the growth performance, meat quality, and strength of the bones and jejunum in ducks of different origin, sex, and age at slaughter. The study was conducted on 320 Orvia and Cherry Valley ducks. Birds were allocated to eight groups, according to their sex and origin. Half of the birds received feed with a 4% inclusion of zeolite. Body weight gain, feed intake, and feed conversion ratio per kilogram of gain were calculated. After six or seven weeks, five birds from each group were selected and slaughtered. After dissection, meat quality (pH, water-holding capacity, colour) and the strength of the bones and gut were analysed. The analysis revealed that zeolite was associated with reduced body weight gains and increased feed conversion ratio, but with a higher water-holding capacity of breast muscles in seven-week-old ducks, and with a higher yellowness and water-holding capacity of leg muscles in six-week-old ducks. A positive effect of long-term factors (age, sex, origin) and the interaction with zeolite was found for most of the analysed traits. Findings on the effect of 4% inclusion of zeolite in duck diet were inconclusive. The study implies the need for further research, since zeolite has potential as a natural sanitizing agent and can improve the quality of produced duck meat.
生产安全和肉类的高品质是家禽养殖的重要方面，尤其是在使用天然解决方案时。由于鸭肉越来越受欢迎，本研究的目的是评估在不同来源、性别和屠宰年龄的鸭子日粮中添加沸石对其生长性能、肉质以及骨骼和空肠强度的影响。该研究以320只奥尔维亚鸭和樱桃谷鸭为对象展开。根据鸟类的性别和来源将它们分为八组。一半的鸟类接受了含有4%沸石的饲料。计算了体重增加、采食量和每千克增重的饲料转化率。六周或七周后，从每组中挑选五只鸟进行屠宰。解剖后，分析了肉质（pH值、持水能力、颜色）以及骨骼和肠道的强度。分析表明，沸石与体重增加减少和饲料转化率增加有关，但在七周龄的鸭子中，它与胸肌较高的持水能力有关，在六周龄的鸭子中，它与腿肌较高的黄度和持水能力有关。对于大多数分析性状，发现长期因素（年龄、性别、来源）以及与沸石的相互作用具有积极影响。在鸭日粮中添加4%沸石的效果研究结果尚无定论。该研究表明需要进一步研究，因为沸石有作为天然消毒剂的潜力，并且可以提高鸭肉的品质。
