Department of Animal Breeding and Nutrition, Faculty of Animal Breeding and Biology, Bydgoszcz University of Science and Technology, Bydgoszcz, Poland.
Department of Animal Breeding and Nutrition, Faculty of Animal Breeding and Biology, Bydgoszcz University of Science and Technology, Bydgoszcz, Poland.
Poult Sci. 2022 Jan;101(1):101543. doi: 10.1016/j.psj.2021.101543. Epub 2021 Oct 19.
The current trends in the production of broiler chickens indicate the need to look for natural solutions that affect the efficiency of production and the quality of meat. The aim of the study was to evaluate the growth performance and quality of broiler chicken meat with the addition of halloysite in feed and litter. Two hundred Ross 308 were used and divided into 2 groups (10 replicates each). The control group (C) did not have any additive, while in the experimental group (H) 0.5% halloysite was used in feed and 0.500 kg/m in peat litter. The production results and litter traits were checked. The presence of footpad dermatitis (FPD) was assessed. After 42 d, 20 birds were randomly selected and slaughtered. Dissection was performed. The slaughter yield and the percentage of carcass elements were calculated, including offal. Breast and leg muscles were analysed qualitatively (pH, colour, water-holding capacity, drip loss, chemical composition). In group H there were no changes to FPD, and in group C there were 6 cases of benign lesions and 1 with severe damage and scabs on the soles of the feet. Significantly higher preslaughter body weight was shown, as well as carcass and wings weight in group H. The H group had a higher pH than the C group, as well as higher protein and water content, and lower intramuscular fat and salt, both in the breast and leg muscles. No significant differences were found in growth performance carcass, meat' colour or water-holding capacity features. The litter with halloysite was characterized by a lower pH but without statistical confirmation. Addition of halloysite to feed and litter reduced the occurrence of skin lesions and had a positive effect on higher protein content and lower intramuscular fat in the breast and leg muscles. This demonstrates the potential for the practical use of halloysite in the production of broiler chickens, both as a feed and peat litter additive.
当前肉鸡生产的趋势表明，需要寻找影响生产效率和肉质的天然解决方案。本研究的目的是评估在饲料和垫料中添加埃洛石对肉鸡生长性能和肉质的影响。使用了 200 只 Ross 308，并将其分为 2 组（每组 10 个重复）。对照组（C）没有添加任何添加剂，而实验组（H）在饲料中添加 0.5%埃洛石，在泥炭垫料中添加 0.500 千克/立方米。检查了生产结果和垫料特性。评估了脚垫皮炎（FPD）的存在。42 天后，随机选择 20 只鸡进行屠宰。进行解剖。计算了屠宰产率和胴体各部位的百分比，包括内脏。分析了胸肌和腿肌的质量（pH 值、颜色、持水力、滴水损失、化学成分）。在 H 组中，FPD 没有变化，而在 C 组中，有 6 例良性病变，1 例脚底严重损伤和结痂。H 组的预屠宰体重、胴体和翅膀重量均显著升高。H 组的 pH 值高于 C 组，胸肌和腿肌的蛋白质和水分含量更高，肌肉内脂肪和盐含量更低。在生长性能、胴体、肉色或持水力特征方面没有发现显著差异。添加埃洛石的垫料的 pH 值较低，但没有统计学确认。在饲料和垫料中添加埃洛石可减少皮肤病变的发生，并对胸肌和腿肌中更高的蛋白质含量和更低的肌肉内脂肪有积极影响。这表明埃洛石在肉鸡生产中具有作为饲料和泥炭垫料添加剂的实际应用潜力。
