肉桂、迷迭香和牛至对空肠弯曲菌感染肉鸡生长性能、血液生化指标、肝酶活性、排泄物微生物群和回肠形态的影响

IF 1.8 3区农林科学 Q2 VETERINARY SCIENCES

Veterinary Medicine and Science Pub Date : 2024-11-01 DOI:10.1002/vms3.70034

Zahra Alimohammadi,Hassan Shirzadi,Kamran Taherpour,Enayat Rahmatnejad,Ali Khatibjoo

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引用次数: 0

摘要

目的本实验旨在评估肉桂粉、迷迭香粉和牛至粉对 0 到 42 日龄空肠弯曲菌感染肉鸡生理反应的影响。方法将 192 只 1 日龄雄性肉鸡分为 6 个处理组。处理包括：阴性对照组（NC；不含添加剂且无空肠杆菌挑战的基础日粮）、阳性对照组（PC；有空肠杆菌挑战的基础日粮）、添加肉桂粉、迷迭香粉或牛至粉的 PC 组（各 3 克/千克）和添加红霉素的 PC 组（55 毫克/千克）。除 NC 组外，所有雏鸡均在第 21-25 天每天口服 2 × 108 CFU/mL 空肠病菌。在育雏期（0-42 天）评估采食量、体重增加（BWG）、饲料转化率（FCR）、能量效率比（EER）和蛋白质效率比（PER）。第 42 日龄时，从每个圈舍收集新鲜排泄物样本，以测定表观干物质消化率和排泄物微生物群。结果空肠酵母菌挑战（PC 处理）降低了肉鸡的体重、ER 和 PER，同时提高了 FCR（p < 0.05），而迷迭香、牛至和红霉素则改善了这些性能参数，与 NC 类似。PC 日粮对回肠形态有负面影响，除肉桂外，其他添加剂都能减轻这种影响（p < 0.05）。日粮添加剂成功地降低了 PC 中弯曲杆菌的水平并增加了乳酸杆菌的数量。迷迭香和牛至降低了血浆总胆固醇（p < 0.05）。迷迭香、牛至和红霉素可防止 PC 组空肠弯曲菌引起的丙氨酸氨基转移酶升高（p < 0.05）。

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Effects of cinnamon, rosemary and oregano on growth performance, blood biochemistry, liver enzyme activities, excreta microbiota and ileal morphology of Campylobacter jejuni-challenged broiler chickens.

BACKGROUND Phytogenic additives would be helpful to mitigate the detrimental impact of Campylobacter jejuni on broiler chickens. OBJECTIVE The experiment aimed to assess the effects of cinnamon, rosemary and oregano powder on physiological responses of broiler chickens challenged with C. jejuni from 0 to 42 days of age. METHODS A total of 192 one-day-old male broiler chickens were divided into 6 treatment groups. The treatments included: negative control (NC; basal diet without additives and no C. jejuni challenge), positive control (PC; basal diet with C. jejuni challenge), PC with cinnamon, rosemary or oregano powder (3 g/kg each), and PC with Erythromycin (55 mg/kg). Except for the NC group, all chicks were orally challenged with 2 × 108 CFU/mL C. jejuni daily from days 21-25. Feed intake, body weight gain (BWG), feed conversion ratio (FCR), energy efficiency ratio (EER) and protein efficiency ratio (PER) were assessed during the rearing period (0-42 days). On day 42 of age, fresh excreta samples were collected from each pen to determine apparent dry matter digestibility and excreta microbiota. In addition, at the end of the experiment, blood samples were collected to evaluate blood profile and liver enzyme activities. RESULTS C. jejuni challenge (PC treatment) decreased BWG, EER and PER, while increasing FCR of broiler chickens (p < 0.05), whereas rosemary, oregano and Erythromycin improved these performance parameters akin to NC. PC diet showed negative effect in ileal morphology, alleviated by additives except cinnamon (p < 0.05). Dietary additives successfully reduced Campylobacter levels and increased Lactobacilli counts in the PC. Rosemary and oregano lowered plasma total cholesterol (p < 0.05). Alanine aminotransferase elevation by C. jejuni challenge in the PC group was prevented by rosemary, oregano and Erythromycin (p < 0.05). CONCLUSIONS Oregano and rosemary alleviate the impact of C. jejuni challenge.

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来源期刊

Veterinary Medicine and Science Veterinary-General Veterinary

CiteScore

3.00

自引率

0.00%

发文量

296

期刊介绍： Veterinary Medicine and Science is the peer-reviewed journal for rapid dissemination of research in all areas of veterinary medicine and science. The journal aims to serve the research community by providing a vehicle for authors wishing to publish interesting and high quality work in both fundamental and clinical veterinary medicine and science. Veterinary Medicine and Science publishes original research articles, systematic reviews, meta-analyses, and research methods papers, along with invited editorials and commentaries. Original research papers must report well-conducted research with conclusions supported by the data presented in the paper. We aim to be a truly global forum for high-quality research in veterinary medicine and science, and believe that the best research should be published and made widely accessible as quickly as possible. Veterinary Medicine and Science publishes papers submitted directly to the journal and those referred from a select group of prestigious journals published by Wiley-Blackwell. Veterinary Medicine and Science is a Wiley Open Access journal, one of a new series of peer-reviewed titles publishing quality research with speed and efficiency. For further information visit the Wiley Open Access website.