Duskaev Galimzhan, Rakhmatullin Shamil, Kvan Olga
Department for Feeding Agricultural Animals and Fodder Technology, Federal Research Centre of Biological Systems and Agrotechnologies of the RAS, Orenburg, Russia.
Vet World. 2020 Nov;13(11):2484-2492. doi: 10.14202/vetworld.2020.2484-2492. Epub 2020 Nov 23.
Progressive antibiotic resistance has become the primary threat to public health. The search for alternative substances with similar effects is now a global challenge for poultry farming. The aim of this study was to investigate the action of the probiotic (BC) and coumarin (CO) on broiler productivity, biochemical indicators of blood, and muscular and liver tissues.
The trial of this study included Arbor Acres cross broiler chickens that were grown up to the age of 42 days. The experiment was conducted on 200 broiler chickens divided into four experimental groups of 50 individuals each: The control group received ration without additives (main ration [MR]), the first experimental group received MR+BC, the second received MR+CO, and the third received -MR+BC+CO. A biochemical and hematological analyzer was used to estimate elemental concentrations using inductively coupled plasma mass spectrometry and inductively coupled plasma atomic emission spectrometry.
Inclusion of CO and CO+BC in the diet improved growth rates and reduced feed consumption (FC) per kg of live weight gain. Decreased white blood cell count, increased creatinine and triglycerides (CO), changes in aminotransferase and transpeptidase activity, and increases in chemical elements in the liver and pectoral muscles (BC+CO) were observed. The inclusion of BC+CO in the diet contributed to increases in a greater number of chemical elements in the liver (calcium [Ca], K, magnesium, Mn, Si, and Zn) and the pectoral muscles (Ca, Na, Co, Cu, Fe, Mn, Ni, and Zn).
The inclusion of CO and CO+BC in the diet improves growth rates and reduces FC in broilers against a background of the absence of mortality during the experiment.
抗生素耐药性的不断发展已成为对公众健康的主要威胁。寻找具有类似作用的替代物质目前是家禽养殖面临的一项全球性挑战。本研究的目的是调查益生菌(BC)和香豆素(CO)对肉鸡生产性能、血液生化指标以及肌肉和肝脏组织的作用。
本研究的试验包括饲养至42日龄的艾维茵杂交肉鸡。实验在200只肉鸡上进行,分为四个实验组,每组50只:对照组接受不含添加剂的日粮(基础日粮[MR]),第一个实验组接受MR + BC,第二个实验组接受MR + CO,第三个实验组接受MR + BC + CO。使用生化和血液分析仪,通过电感耦合等离子体质谱法和电感耦合等离子体原子发射光谱法估计元素浓度。
日粮中添加CO和CO + BC可提高生长速度,并降低每千克体重增加的饲料消耗量(FC)。观察到白细胞计数降低、肌酐和甘油三酯升高(CO)、转氨酶和转肽酶活性变化,以及肝脏和胸肌中化学元素增加(BC + CO)。日粮中添加BC + CO导致肝脏(钙[Ca]、钾、镁、锰、硅和锌)和胸肌(钙、钠、钴、铜、铁、锰、镍和锌)中更多化学元素增加。
在实验期间无死亡的情况下,日粮中添加CO和CO + BC可提高肉鸡的生长速度并降低FC。