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首页> 外文期刊>Poultry Science >Effects of single and combined Mycoplasma gallisepticum vaccinations on blood electrolytes and acid-base balance in commercial egg-laying hens
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Effects of single and combined Mycoplasma gallisepticum vaccinations on blood electrolytes and acid-base balance in commercial egg-laying hens

机译：鸡毒支原体单次和联合接种对产蛋母鸡血液电解质和酸碱平衡的影响

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A previous study from our laboratory on F-strain Mycoplasma gallisepticum-inoculated layers showed a significant increase in arterial partial pressure of oxygen (pO(2)), which is generally associated with an oxygen-dependent improvement in tissue oxygenation. The aim of this study was to determine whether a killed (bacterin) and live TS-11-strain M. gallisepticum (TS-11-MG) vaccine treatment combination could further enhance the arterial pO(2) levels in layer chickens. The experiment was conducted in 2 trials and arranged in a completely randomized experimental design with 4 treatments. The treatments consisted of a control M. gallisepticum, bacterin, TS-11-MG, and bacterin + TS-11-MG combined, with all treatments receiving the R low strain of MG at 30 wk of age (WOA). In each of the 2 trials, 160 one-day-old MG-free pullets were raised to 10 WOA and were transported to a poultry disease isolation facility. Sixteen isolation units were divided into 4 treatment groups, and each of the 4 treatment groups had 4 replication units, with 10 birds/unit (40 birds/treatment). Venous blood samples were collected at the termination of the study at 56 WOA. The TS-11-MG-vaccinated chickens had a higher (P <= 0.05) blood pO(2) and a lower (P <= 0.05) partial pressure of CO2 when compared with the control and combined MG-vaccinated groups. However, no significant blood pO(2) differences were observed between the bacterin and TS-11-MG treatment groups. Hematocrit and blood concentrations of hemoglobin were not statistically different among treatments, but were numerically higher in the TS-11-MG treatment group. There was a significant (P <= 0.05) treatment effect on blood concentrations of Na+, Ca2+, and anion, but no significant effect on glucose, cholesterol, triglyceride, or osmolality. These data suggest that the inoculation of layers with TS-11-MG was more effective in elevating pO(2) than was inoculation with TS-11-MG + bacterin combined.
机译：我们实验室对F株鸡毒支原体接种层的先前研究表明，氧的动脉分压（pO（2））显着增加，这通常与组织氧合的氧依赖性改善有关。这项研究的目的是确定被杀死的（细菌）和活的TS-11-株鸡毒支原体（TS-11-MG）疫苗治疗组合是否可以进一步提高鸡的动脉pO（2）水平。该实验在2个试验中进行，并安排为采用4种治疗方法的完全随机实验设计。这些治疗由对照鸡毒支原体，细菌，TS-11-MG和细菌+ TS-11-MG组成，所有治疗均在30周龄时接受MG的R低毒株（WOA）。在这2个试验的每一个试验中，将160只1天大的无MG小母鸡饲养到10个WOA，并运送到家禽疾病隔离设施中。将16个隔离单元划分为4个处理组，这4个处理组中的每个都有4个复制单元，每组10只禽（40只禽）。在研究结束时以56 WOA收集静脉血样品。与对照组和接种MG疫苗的组相比，接种TS-11-MG疫苗的鸡的血液pO（2）较高（P <= 0.05），而二氧化碳的分压较低（P <= 0.05）。但是，在细菌和TS-11-MG治疗组之间未发现明显的血液pO（2）差异。各治疗之间的血细胞比容和血红蛋白浓度无统计学差异，但在TS-11-MG治疗组中数字较高。对血中Na +，Ca2 +和阴离子的浓度有显着（P <= 0.05）处理效果，但对葡萄糖，胆固醇，甘油三酸酯或重量摩尔渗透压浓度没有明显影响。这些数据表明，与用TS-11-MG +细菌素联合接种相比，用TS-11-MG接种层更能提高pO（2）。

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